BoP Lab / Michelin Raceway Road Atlanta

AS + T4 + SM + B-Spec at Michelin Raceway Road Atlanta

2 runs are left out as not that car's own laps (far quicker than the car managed in any other session and than anyone else in its class all week; usually a swapped transponder): Jarrett Jones in Atlanta Region SCCA Hoosier Super Tour @ Michelin Raceway Road Atlanta Morning test (1:26.895; the car's best in any other session was 1:43.195 and the rest of the class's best all week 1:42.071); Stewart Black in Atlanta Region SCCA Hoosier Super Tour @ Michelin Raceway Road Atlanta Group 2 (1:39.278; the car's best in any other session was 1:51.278 and the rest of the class's best all week 1:49.292).

Pos	Car	Driver	Class	#	Lap	Theoretical	Qual	Race	5-lap stint	Consistency	Trap	S1	S2	S3
1	Ford Mustang	Michael Kamalian	AS	199, 99	1:34.642 A-R1	1:34.569	1:36.558 B-Q1	1:34.642 A-R1	1:36.577 A-R1	+7.895 A-R1	140.9 A-R1	37.067 A-R1	33.474 A-R1	24.028 A-R1
2	Ford Mustang	Thomas J Ellis	AS	51	1:35.351 B-R2	1:34.701	1:35.467 B-Q2	1:35.351 B-R2	1:36.206 B-R2	+1.450 B-R2	138.3 B-R2	37.678 B-R2	32.639 B-Q2	24.384 B-R2
3	Ford Mustang	Gregory Eaton	AS	21	1:35.692 B-R2	1:35.295	1:36.767 B-Q2	1:35.692 B-R2	1:36.001 B-R2	+0.932 B-R2	132.5 B-R2	37.336 B-R2	33.408 B-Q2	24.551 B-R2
4	Ford Mustang GT	James Jost	AS	14	1:36.389 B-R2	1:35.532	1:38.195 B-Q2	1:36.389 B-R2	1:37.112 B-R2	+1.514 B-R2	138.6 B-Q1	38.069 B-R1	32.794 B-R2	24.669 B-R2
5	Mazda Miata	Jonathan Neudorf 2+ cars	T4	95	1:38.841 D-Q2	1:38.683	1:38.841 D-Q2	1:40.761 D-R1	1:42.906 D-R1	+3.413 D-R1	118.1 D-R1	37.070 D-Q2	36.372 D-Q2	25.241 D-Q2
6	Mazda MX-5	Marc Cefalo 2+ cars	T4	00	1:39.119 D-Q2	1:38.943	1:39.119 D-Q2	1:40.456 D-R1	1:42.237 D-R1	+1.804 D-R1	118.3 D-Q2	37.431 D-Q2	36.328 C-R2	25.184 D-Q2
7	Mazda RX-8	Marc Cefalo 2+ cars	T4	00	1:39.654 B-R2	1:39.420	1:40.096 B-Q2	1:39.654 B-R2	1:40.184 B-R2	+0.831 B-R2	111.1 B-R2	37.643 B-R2	36.384 B-R2	25.393 B-R2
8	Mazda Miata	Ethan Barker	T4	112	1:39.976 B-Q2	1:39.456	1:39.976 B-Q2	1:40.155 B-R2	1:40.753 B-R2	+0.624 B-R2	108.6 B-R2	37.465 B-R2	36.492 B-R2	25.499 B-Q2
9	Mazda MX-5	Robert Spence	T4	59	1:40.079 D-Q2	sector data unreliable	1:40.079 D-Q2	1:40.526 D-R1	1:42.920 B-R2	+0.979 B-R2	118.1 D-Q2	37.808	0.759	25.453
10	Subaru BRZ	Angelica Sprehe 2+ cars	T4	120	1:40.432 D-Q2	1:40.085	1:40.432 D-Q2	1:41.411 D-R1	1:42.469 D-R1	+1.587 D-R1	123.5 D-Q2	38.670 D-R1	35.608 D-Q2	25.807 D-Q2
11	Mazda Miata	Charles Habisreutinger	T4	9	1:40.594 D-Q2	1:40.376	1:40.594 D-Q2	1:41.453 D-R1	1:42.909 D-R1	+1.890 D-R1	118.1 D-R1	37.878 D-Q2	36.779 D-Q2	25.719 D-R1
12	Mazda MX-5	Kevin Fryer	T4	98	1:40.673 A-Q2	1:40.032	1:40.673 A-Q2	1:41.079 C-R2	1:41.540 A-R1	+1.666 A-R1	119.5 A-R1	37.704 C-Q2	36.534 C-R2	25.794 A-Q2
13	Mazda Miata	Ayden Rose	T4	46	1:40.736 A-R1	1:40.386	1:41.779 A-Q2	1:40.736 A-R1	1:41.425 A-R1	+4.923 A-R1	116.5 A-R1	38.264 A-R1	36.631 A-R1	25.491 A-R1
14	Ford Mustang	Scotty B White	T4	0	1:41.239 B-R2	sector data unreliable	1:41.847 B-Q2	1:41.239 B-R2	1:41.926 B-R2	+0.964 B-R2	113.1 B-P	38.735	0.916	25.791
15	Toyota GR86	Angelica Sprehe 2+ cars	T4	120	1:41.397 C-Q1	1:41.389	1:41.397 C-Q1	1:42.072 A-R1	1:43.692 A-R1	+4.048 A-R1	121.0 A-Q1	39.312 A-P	36.256 C-Q1	25.821 C-Q1
16	Mazda MX-5	Richard Mooney	T4	9	1:41.555 C-Q1	1:41.555	1:41.555 C-Q1	1:44.097 C-R2	2:01.549 C-R2	+11.105 C-R2	109.7 C-R2	38.698 C-Q1	36.901 C-Q1	25.956 C-Q1
17	Mazda MX-5	Sergio Zlobin	T4	118	1:41.856 C-R2	1:41.203	1:42.326 C-Q1	1:41.856 C-R2	2:01.035 C-R2	+15.782 C-R2	111.5 C-R2	38.506 C-R2	36.956 C-R2	25.741 C-R2
18	Ford Mustang	Paolo Salvatore	T4	142	1:41.957 C-Q1	1:41.618	1:41.957 C-Q1	1:45.711 C-R2	2:02.053 C-R2	+10.447 C-R2	112.0 C-Q1	38.728 C-Q2	37.005 C-Q1	25.885 C-Q1
19	Mazda Miata (2001)	Stanley Brock Jr	SM	61	1:42.071 B-P	1:42.068	1:42.981 A-Q1	1:42.619 A-R1	1:42.874 A-R1	+1.848 A-R1	111.8 A-Q1	38.166 B-P	37.653 B-P	26.249 B-P
20	Mazda Miata (2001)	Skyler Cottrell	SM	29, 9	1:42.324 A-Q1	sector data unreliable	1:42.324 A-Q1	1:43.022 A-R1	1:43.290 A-R1	+0.730 A-R1	111.2 A-Q1	38.237	0.806	25.854
21	Mazda Miata (1999)	John Salerno	SM	34	1:42.453 A-Q1	1:42.360	1:42.453 A-Q1	1:43.042 A-R1	1:43.298 A-R1	+2.480 A-R1	110.9 A-Q1	38.394 A-Q1	37.750 A-Q1	26.216 A-R1
22	Mazda Miata (2003)	Charles Mactutus	SM	66	1:42.553 D-R1	1:42.185	1:42.619 D-Q2	1:42.553 D-R1	1:43.061 A-R1	+1.531 A-R1	111.4 A-R1	38.190 C-Q2	37.772 A-Q1	26.223 A-R1
23	Mazda Miata (1999)	Travis Wiley	SM	177, 77, 78	1:42.611 A-R1	1:42.451	1:42.719 A-Q1	1:42.611 A-R1	1:42.889 A-R1	+1.908 A-R1	111.8 A-Q1	38.390 C-Q2	37.841 B-P	26.220 A-R1
24	Mazda Miata (1999)	Danny Steyn	SM	39	1:42.620 C-Q1	1:42.337	1:42.620 C-Q1	1:42.911 D-R1	1:43.347 D-R1	+2.185 D-R1	111.3 D-R2	38.256 D-R1	37.827 C-Q1	26.254 D-Q2
25	Mazda Miata (1999)	Sean Noonan	SM	0	1:42.625 B-R2	1:42.537	1:42.848 B-Q1	1:42.625 B-R2	1:43.481 B-R2	+1.529 B-R2	109.6 D-R2	38.494 B-R2	37.768 B-P	26.275 B-Q1
26	Mazda Miata (2001)	Max Stallone	SM	03, 103	1:42.682 A-Q1	1:42.371	1:42.682 A-Q1	1:42.939 A-R1	1:43.295 A-R1	+0.850 A-R1	110.7 A-R1	38.387 A-Q1	37.761 A-Q1	26.223 A-R1
27	Mazda Miata (2002)	Logan Stretch	SM	98, 89	1:42.684 A-Q1	1:42.460	1:42.684 A-Q1	1:42.933 D-R1	1:43.287 A-R1	+0.753 A-R1	111.6 D-Q2	38.342 D-R1	37.892 A-Q1	26.226 A-R1
28	Mazda Miata (2001)	Bobby Gossett	SM	44, 144	1:42.699 A-Q1	1:42.386	1:42.699 A-Q1	1:43.164 A-R1	1:43.933 B-R2	+1.454 B-R2	110.4 A-R1	38.259 A-Q1	37.890 A-Q1	26.237 B-P
29	Mazda Miata (2004)	Francisco Barroso	SM	48	1:42.738 A-R1	1:42.732	1:43.360 A-Q1	1:42.738 A-R1	1:43.274 A-R1	+1.770 A-R1	111.4 A-R1	38.441 A-R1	37.969 A-Q1	26.322 A-R1
30	Mazda Miata (2000)	James Newell	SM	70, 23	1:42.741 A-Q1	1:42.497	1:42.741 A-Q1	1:42.822 A-R1	1:43.124 A-R1	+2.265 A-R1	112.2 A-Q1	38.524 B-R1	37.797 A-Q1	26.176 A-R1
31	Mazda Miata (2001)	Brian Henderson	SM	9, 97	1:42.756 D-R1	1:42.534	1:43.323 D-Q2	1:42.756 D-R1	1:44.499 D-R1	+4.295 D-R1	111.7 D-Q2, D-R1	38.453 D-R1	37.725 D-R1	26.356 D-Q2
32	Mazda Miata (2003)	Raiden Nicol	SM	193	1:42.913 D-R1	1:42.792	1:43.254 D-Q2	1:42.913 D-R1	1:43.621 D-R1	+2.506 D-R1	110.3 D-Q2, D-R1	38.335 D-R1	38.100 D-R1	26.357 D-R1
33	Mazda Miata (2002)	Nicholas Bruni	SM	1, 6	1:42.965 D-R1	1:42.516	1:43.156 C-Q2	1:42.965 D-R1	1:43.552 C-R2	+14.239 C-R2	111.3 D-R1	38.282 C-R2	37.803 C-Q2	26.431 D-R1
34	Mazda Miata (1999)	Stuart Mcaleer	SM	143, 43	1:42.999 C-R2	1:42.715	1:43.275 A-Q1	1:42.999 C-R2	1:43.798 C-R2	+12.217 C-R2	110.9 A-Q1	38.504 C-R2	37.915 C-R2	26.296 A-Q1
35	Mazda Miata (2005)	Jim Drago	SM	2	1:43.034 D-Q2	1:42.827	1:43.034 D-Q2	1:43.345 C-R2	1:43.896 C-R2	+16.748 C-R2	111.6 D-Q2	38.583 D-Q2	37.940 C-R2	26.304 D-Q2
36	Mazda Miata (1999)	Matthew Novak	SM	11	1:43.052 C-R2	1:42.778	1:43.750 C-Q2	1:43.052 C-R2	1:43.543 C-R2	+14.421 C-R2	106.0 B-P	38.472 C-R2	37.881 C-R2	26.425 B-R2
37	Mazda Miata (2000)	James Newll	SM	70	1:43.071 B-Q1	1:42.759	1:43.071 B-Q1				104.0 B-P	38.453 B-Q1	37.907 B-Q1	26.399 B-Q1
38	Mazda Miata (1999)	Ethan Goulart	SM	72	1:43.085 B-P	1:42.448	1:43.239 B-Q1	1:43.238 B-R2	1:43.493 B-R2	+0.642 B-R2	105.9 B-P, B-Q1	38.503 B-R1	37.783 B-R2	26.162 B-P
39	Mazda Miata (1999)	Noah Harmon	SM	112	1:43.107 D-R1	1:43.045	1:44.186 D-Q2	1:43.107 D-R1	1:43.849 D-R1	+2.207 D-R1	111.0 D-R1	38.620 D-R1	38.038 D-R1	26.387 D-R1
40	Mazda Miata (2002)	Jose Ulfe	SM	19	1:43.126 B-R2	1:42.694	1:43.822 B-Q1	1:43.126 B-R2	1:43.669 B-R2	+1.032 B-R2	105.6 B-R2	38.615 B-R2	37.779 B-R2	26.300 B-P
41	Mazda Miata (1999)	Brett Kowalski	SM	15, 115	1:43.136 C-Q1	1:42.975	1:43.136 C-Q1	1:43.251 C-R2	1:44.027 D-R1	+2.299 D-R1	110.7 D-Q2	38.652 C-R2	37.945 C-Q1	26.378 A-Q2
42	Mazda Miata (2001)	Skip Brock_Jr	SM	61	1:43.137 C-R2	1:42.725	1:43.221 C-Q2	1:43.137 C-R2	1:43.637 C-R2	+11.384 C-R2	104.8 C-R2	38.364 C-Q2	37.921 C-R2	26.440 C-R2
43	Mazda Miata (2002)	Matt Stretch	SM	89	1:43.165 B-Q1	1:42.868	1:43.165 B-Q1	1:43.403 B-R2	1:43.998 B-R2	+1.045 B-R2	110.0 D-R1	38.604 B-Q1	37.868 B-R2	26.396 B-Q1
44	Mazda Miata (2000)	Tyler Brown	SM	07	1:43.170 C-R2	1:42.923	1:43.696 C-Q2	1:43.170 C-R2	1:43.501 C-R2	+15.774 C-R2	105.2 C-R2	38.475 C-R2	37.828 C-R2	26.620 C-R2
45	Mazda Miata (2002)	Jarrett Jones	SM	86	1:43.195 B-R2	1:42.829	1:43.614 B-Q1	1:43.195 B-R2	1:43.803 B-R2	+1.620 B-R2	106.2 B-R2	38.663 B-R2	37.764 B-R2	26.402 B-R2
46	Mazda Miata (2001)	Christian Meyer	SM	92, 134	1:43.246 B-R2	1:42.975	1:43.732 B-Q1	1:43.246 B-R2	1:43.614 B-R2	+1.440 B-R2	110.8 A-R1	38.696 B-Q1	38.097 A-R1	26.182 B-R2
47	Mazda Miata (2001)	Zach Ehrlich	SM	180	1:43.262 A-R1	1:43.093	1:43.383 A-Q1	1:43.262 A-R1	1:43.789 A-R1	+2.236 A-R1	111.1 A-R1	38.757 A-R1	37.991 A-Q1	26.345 A-Q1
48	Mazda Miata	Daniel Williams	SM	28	1:43.270 B-Q1	1:43.035	1:43.270 B-Q1	1:43.466 B-R2	1:44.212 B-R1	+3.486 B-R1	105.9 B-R2	38.703 B-R1	37.954 B-P	26.378 B-Q1
49	Mazda Miata (2001)	Brandon Collins	SM	144	1:43.273 C-R2	1:42.805	1:43.584 C-Q2	1:43.273 C-R2	1:43.600 C-R2	+12.440 C-R2	104.3 C-R2	38.330 C-R2	37.918 C-R2	26.557 C-Q2
50	Mazda Miata (1999)	Dean Dybdahl	SM	90	1:43.300 A-Q1	1:42.741	1:43.300 A-Q1	1:43.629 A-R1	1:43.916 A-R1	+1.453 A-R1	110.5 A-R1	38.650 A-R1	37.929 A-Q1	26.162 A-Q1
51	Mazda Miata (1999)	Will Robinson	SM	5, 51, 151, 193	1:43.353 B-Q1	1:42.713	1:43.353 B-Q1	1:43.391 B-R2	1:44.381 B-R2	+1.513 B-R2	110.7 A-Q1, A-Q2	38.546 A-Q1	37.865 B-P	26.302 A-R1
52	Mazda Miata (1999)	Nick Leverone	SM	188, 43, 92, 94	1:43.355 C-R2	1:43.053	1:43.466 D-Q2	1:43.355 C-R2	1:44.147 C-R2	+18.693 C-R2	111.2 D-R1	38.633 D-R1	37.984 C-R2	26.436 D-R1
53	Mazda Miata (1999)	Scott Phillips	SM	166	1:43.363 B-R2	1:43.304	1:44.166 B-Q1	1:43.363 B-R2	1:44.389 B-R2	+1.059 B-R2	109.1 A-Q2	38.822 B-R2	38.087 B-R2	26.395 B-R2
54	Mazda Miata (1991)	David Stern	SM	19	1:43.366 A-Q1	1:43.356	1:43.366 A-Q1	1:44.158 A-R1	1:44.374 A-R1	+2.583 A-R1	110.9 A-Q1	38.849 A-Q1	37.936 A-Q1	26.571 A-Q1
55	Mazda Miata (2005)	Senter Smith	SM	55	1:43.367 C-R2	1:43.148	1:43.946 C-Q1	1:43.367 C-R2	1:43.864 C-R2	+15.793 C-R2	103.8 C-Q2	38.557 C-R2	37.910 C-R2	26.681 C-Q1
56	Mazda Miata (2001)	Justin Gravett	SM	52	1:43.387 B-R2	1:43.213	1:44.335 B-Q1	1:43.387 B-R2	1:44.515 B-R2	+1.611 B-R2	106.2 B-R2	38.660 B-R1	38.156 B-R2	26.397 B-R2
57	Mazda Miata (1999)	Jonathan Neudorf 2+ cars	SM	95	1:43.394 D-R1	1:42.875	1:43.751 D-Q2	1:43.394 D-R1	1:44.154 D-R1	+1.876 D-R1	112.2 D-R1	38.476 D-R1	38.070 D-R1	26.329 D-R2
58	Mazda Miata (2004)	Frankie Barroso	SM	48	1:43.430 D-R1	1:43.136	1:43.900 D-Q2	1:43.430 D-R1	1:43.781 D-R1	+2.613 D-R1	111.6 D-R2	38.730 D-R1	38.005 D-R1	26.401 D-R1
59	Mazda Miata (1999)	Olivier Piatek	SM	62	1:43.431 B-R2	1:43.018	1:43.620 C-Q1	1:43.431 B-R2	1:44.218 B-R2	+1.234 B-R2	105.4 B-R2	38.580 B-R2	38.056 B-R2	26.382 B-R2
60	Mazda Miata (1997)	Cliff Brown	SM	01	1:43.449 A-Q1	1:43.124	1:43.449 A-Q1	1:43.780 A-R1	1:44.617 D-R1	+3.006 D-R1	110.8 A-Q1	38.716 D-R1	38.014 A-Q1	26.394 A-R1
61	Mazda Miata (2001)	Junior Brock	SM	61	1:43.478 D-Q2	1:43.249	1:43.478 D-Q2	1:43.638 D-R1	1:44.372 D-R1	+1.828 D-R1	111.3 D-R2	38.617 D-R1	38.234 D-R1	26.398 D-Q2
62	Mazda Miata (1999)	Andrew Devoto	SM	09	1:43.486 C-R2	1:43.196	1:43.750 C-Q2	1:43.486 C-R2	1:44.130 C-R2	+19.725 C-R2	104.0 C-Q1	38.381 C-R2	38.142 C-Q1	26.673 C-R2
63	Mazda Miata (2000)	Max Ehrlich	SM	81	1:43.494 C-R2	1:43.342	1:44.097 C-Q2	1:43.494 C-R2	1:44.015 C-R2	+17.198 C-R2	104.0 C-R2	38.721 C-R2	38.076 C-R2	26.545 C-R2
64	Mazda Miata (1999)	Jack Murchison	SM	1, 58	1:43.503 A-R1	1:43.156	1:43.655 A-Q1	1:43.503 A-R1	1:44.155 A-R1	+1.866 A-R1	111.2 A-Q1	38.612 B-Q2	38.136 A-Q1	26.408 A-R1
65	Mazda Miata (1999)	Ryan Kipke	SM	44	1:43.531 A-Q1	1:43.403	1:43.531 A-Q1	1:44.301 A-R1	1:44.427 A-R1	+3.257 A-R1	109.4 A-R2	38.689 A-Q1	38.215 A-Q1	26.499 A-Q1
66	Mazda Miata (1999)	Peter Ensor	SM	49	1:43.544 D-Q2	1:43.066	1:43.544 D-Q2	1:45.991 D-R2	1:46.287 D-R2	+3.200 D-R2	111.7 D-Q2	38.731 D-Q2	38.113 D-Q2	26.222 D-Q2
67	Mazda Miata (1997)	Marc Cefalo 2+ cars	SM	00	1:43.554 A-Q1	1:43.421	1:43.554 A-Q1	1:44.029 A-R1	1:44.362 A-R1	+1.978 A-R1	110.2 A-Q2	38.922 A-Q1	37.968 A-Q1	26.531 A-R1
68	Mazda Miata (2004)	Spencer Lofton	SM	10	1:43.574 D-Q2	1:43.280	1:43.574 D-Q2	1:43.631 D-R1	1:43.846 D-R1	+1.750 D-R1	111.3 D-Q2	38.676 D-R1	38.095 D-R1	26.509 D-Q2
69	Mazda Miata (1999)	Luke Pullen	SM	21	1:43.606 C-Q2	1:43.472	1:43.606 C-Q2	1:43.898 C-R2	1:45.425 C-R2	+17.673 C-R2	103.5 C-R2	38.624 C-Q2	38.261 C-R2	26.587 C-R2
70	Mazda Miata (2001)	Chris Haldeman	SM	28	1:43.664 C-Q2	1:43.470	1:43.664 C-Q2	1:56.086 C-R1	1:57.234 C-R1	+2.215 C-R1	102.6 C-Q1, C-Q2	38.724 C-Q2	38.157 C-Q2	26.589 C-Q2
71	Mazda Miata (2001)	Sam Craven	SM	23	1:43.675 D-Q2	1:43.422	1:43.675 D-Q2	1:44.534 D-R1	1:45.115 D-R1	+1.421 D-R1	111.0 D-R2	38.626 D-Q2	38.290 D-Q2	26.506 D-Q2
72	Mazda Miata (1994)	Chris Allen	SM	169	1:43.685 A-R1	1:43.259	1:43.760 A-Q1	1:43.685 A-R1	1:43.965 A-R1	+1.891 A-R1	111.5 A-Q1	38.909 A-R1	38.070 A-Q1	26.280 A-Q1
73	Mazda Miata (2001)	Mark Curlee	SM	63, 163	1:43.757 B-P	1:43.373	1:44.641 C-Q2	1:44.515 B-R2	1:44.990 B-R2	+0.808 B-R2	110.4 A-R1	38.974 A-Q1	37.846 B-P	26.553 B-P
74	Mazda Miata (1999)	Ryan Maloney	SM	15	1:43.766 A-Q1	1:43.148	1:43.766 A-Q1	1:43.820 A-R1	1:44.088 A-R1	+2.119 A-R1	111.2 A-Q1	38.701 A-Q1	38.038 A-Q1	26.409 A-R1
75	Mazda Miata (2003)	Scott Carlisle	SM	54	1:43.771 B-R2	1:43.737	1:45.433 B-Q1	1:43.771 B-R2	1:44.680 B-R2	+1.210 B-R2	105.5 B-R2	39.068 B-R2	38.150 B-R2	26.519 B-R2
76	Mazda Miata (2003)	Zack Barfield	SM	107	1:43.825 D-Q2	1:43.825	1:43.825 D-Q2	1:44.129 D-R1	1:45.086 D-R1	+3.823 D-R1	110.6 D-R1	38.859 D-R1	38.521 D-Q2	26.552 D-Q2
77	Mazda Miata (2001)	Peter Tonelli II	SM	18	1:43.834 C-R2	1:43.588	1:44.284 C-Q2	1:43.834 C-R2	1:44.960 C-R2	+19.619 C-R2	109.7 A-R1	39.079 A-R1	37.928 C-R2	26.581 C-Q2
78	Mazda Miata (2002)	Boris Said Jr	SM	133	1:43.853 C-Q1	1:43.558	1:43.853 C-Q1	1:58.284 C-R1	2:01.677 C-R1	+2.226 C-R1	103.8 C-Q2	38.791 C-Q1	38.084 C-Q2	26.683 C-Q2
79	Mazda Miata (2003)	Joseph Federl	SM	121	1:43.880 B-R2	1:43.388	1:44.382 B-Q1	1:43.880 B-R2	1:44.180 B-R2	+1.014 B-R2	104.4 B-R2	38.791 B-Q2	38.211 C-R2	26.386 B-R2
80	Mazda Miata (1999)	Gianni Maiuro	SM	72	1:43.917 A-R1	1:43.376	1:43.958 A-Q1	1:43.917 A-R1	1:44.474 A-R1	+2.309 A-R1	110.5 A-R1	38.878 A-Q1	38.141 A-R1	26.357 A-R1
81	Mazda Miata (1999)	Seth Gentry	SM	20	1:43.918 B-R2	1:43.447	1:45.010 B-Q2	1:43.918 B-R2	1:44.392 B-R2	+0.721 B-R2	105.1 B-R2	38.812 B-R2	38.266 B-R2	26.369 B-R2
82	Mazda Miata (1999)	Tyler Klein	SM	73	1:43.935 C-Q1	1:43.851	1:43.935 C-Q1	1:44.349 C-R2	1:45.643 C-R2	+16.895 C-R2	103.4 C-Q1	38.938 C-R2	38.417 C-Q2	26.496 C-Q1
83	Mazda Miata (2003)	Colin Murchison	SM	21	1:43.939 A-R1	1:43.556	1:44.036 A-Q1	1:43.939 A-R1	1:44.105 A-R1	+1.695 A-R1	109.7 A-Q2	38.893 A-Q1	38.226 A-R1	26.437 A-R1
84	Mazda Miata (1999)	Max Hewitt	SM	22	1:44.032 C-R2	1:43.813	1:44.367 C-Q2	1:44.032 C-R2	1:45.172 C-R2	+19.041 C-R2	103.5 C-R2	38.880 C-Q2	38.333 C-R2	26.600 C-R2
85	Mazda Miata (2002)	Bob Mueller Jr.	SM	60	1:44.035 A-Q1	1:43.763	1:44.035 A-Q1	1:45.304 A-R1	1:45.409 A-R1	+1.535 A-R1	110.2 A-Q1	39.152 A-Q1	38.173 A-Q1	26.438 A-Q1
86	Mazda Miata (2001)	Tom Brown	SM	27	1:44.062 C-R2	1:43.968	1:44.113 C-Q1	1:44.062 C-R2	1:45.059 C-R2	+18.193 C-R2	103.8 C-R2	39.054 C-Q1	38.149 C-R2	26.765 C-Q2
87	Mazda Miata (1999)	Julian DaCosta	SM	78	1:44.079 D-Q2	1:44.075	1:44.079 D-Q2	1:44.206 D-R1	1:44.944 D-R1	+4.150 D-R1	111.3 D-R1	39.049 D-R1	38.328 D-R1	26.698 D-Q2
88	Mazda Miata (1999)	Ben Gaunt	SM	95	1:44.098 A-Q1	1:43.768	1:44.098 A-Q1	1:45.115 A-R1	1:45.760 A-R1	+1.787 A-R1	109.7 A-R1	38.909 A-Q1	38.184 A-Q1	26.675 A-Q2
89	Mazda Miata (1999)	Sean Varwig	SM	02	1:44.101 C-Q1	1:43.983	1:44.101 C-Q1	1:55.847 C-R1	1:56.278 C-R1	+1.586 C-R1	103.8 C-Q1	38.874 C-Q1	38.231 C-Q1	26.878 C-Q1
90	Mazda Miata (2001)	Ellie Gossett	SM	77, 177	1:44.102 A-Q1	1:43.995	1:44.102 A-Q1	1:44.841 A-R1	1:45.293 A-R1	+3.029 A-R1	110.0 A-R1	39.063 A-Q1	38.250 A-Q1	26.682 A-Q1
91	Mazda Miata (2001)	Gavin Vaughan	SM	148	1:44.103 A-Q1	1:43.134	1:44.103 A-Q1	1:45.818 A-R1	2:00.065 A-R2	+4.984 A-R2	109.0 A-Q1	38.470 A-Q1	38.071 A-Q1	26.593 A-Q1
92	Mazda Miata (2002)	Wes Duchak	SM	68	1:44.130 C-Q2	1:43.751	1:44.130 C-Q2	1:44.546 C-R2	1:45.050 C-R2	+20.120 C-R2	102.2 C-R2	38.897 C-Q1	38.083 C-Q2	26.771 C-R2
93	Mazda Miata (1999)	Maximilian Opalski	SM	21	1:44.209 D-Q2	1:43.649	1:44.209 D-Q2	1:44.334 D-R1	1:45.282 D-R1	+2.311 D-R1	111.3 D-Q2	39.049 D-R1	38.093 D-R1	26.507 D-Q2
94	Mazda Miata (1999)	Chase Kovatch	SM	13	1:44.212 A-Q1	1:44.212	1:44.212 A-Q1	1:45.760 A-R1	1:46.032 A-R1	+0.822 A-R1	111.2 A-Q1	39.244 A-Q1	38.494 A-Q1	26.474 A-Q1
95	Mazda Miata (1999)	Casey Moseley	SM	92	1:44.232 A-Q1	1:43.973	1:44.232 A-Q1	1:45.331 A-R1	1:46.125 A-R1	+1.543 A-R1	110.0 A-Q1	39.099 A-Q1	38.132 A-Q1	26.742 A-R1
96	Chevrolet Camaro Z-28	Phillip Waters	AS	177	1:44.301 C-Q1	1:44.301	1:44.301 C-Q1	2:00.265 C-R1	2:08.610 C-R1	+11.503 C-R1	130.0 C-Q1	42.124 C-Q1	35.315 C-Q1	26.862 C-Q1
97	Mazda Miata (2001)	Miles Hewitt	SM	17	1:44.408 C-Q2	1:44.125	1:44.408 C-Q2	1:45.686 C-R2	1:46.319 C-R2	+18.637 C-R2	103.0 C-R2	39.131 C-Q2	38.412 C-Q2	26.582 C-Q2
98	Mazda Miata (2001)	Graham Jacobson	SM	6	1:44.569 A-Q1	1:44.340	1:44.569 A-Q1	1:44.902 A-R1	1:45.384 A-R1	+2.187 A-R1	110.4 A-R1	39.089 A-P	38.504 A-Q1	26.747 A-Q1
99	Mazda Miata (1999)	Greg Bogart	SM	123	1:44.596 A-Q1	1:44.389	1:44.596 A-Q1	1:45.189 A-R1	1:45.898 A-R1	+2.385 A-R1	109.7 A-R1	39.359 A-Q1	38.337 A-Q1	26.693 A-Q1
100	Mazda Miata (1999)	Greg Sorg	SM	71	1:44.602 D-Q2	1:44.427	1:44.602 D-Q2	1:44.986 D-R1	1:45.507 D-R1	+2.003 D-R1	110.0 D-Q2	39.258 D-R1	38.367 D-R1	26.802 D-R1
101	Mazda Miata (2021)	Jeremy Fletcher	SM	22	1:44.629 D-Q2	1:44.629	1:44.629 D-Q2	1:45.012 D-R2	1:46.483 D-R2	+6.893 D-R2	111.0 D-R2	39.933 D-R2	38.339 D-R2	26.715 D-Q2
102	Mazda Miata (1999)	Christopher Girem	SM	14	1:44.643 A-Q1	1:44.596	1:44.643 A-Q1	1:46.827 B-R1	1:47.206 B-R2	+0.561 B-R2	108.7 A-R1	39.099 A-Q1	38.607 A-Q1	26.890 A-Q2
103	Mazda Miata (1999)	Javier Rodriguez	SM	189	1:44.743 B-Q1	1:44.440	1:44.743 B-Q1	1:46.319 B-R1	1:47.508 B-R1	+3.882 B-R1	103.2 B-R1	39.118 B-Q1	38.538 B-Q1	26.784 B-Q1
104	Mazda Miata	David Henderson	SM	28	1:44.746 D-R1	1:44.707	1:47.385 D-Q2	1:44.746 D-R1	1:46.241 D-R1	+3.767 D-R1	110.7 D-R1	39.380 D-R1	38.340 D-R1	26.987 D-R1
105	Mazda Miata (1999)	Marcos Vento	SM	12	1:44.778 D-Q2	1:44.470	1:44.778 D-Q2	1:45.080 D-R1	1:46.297 D-R1	+2.131 D-R1	109.5 D-R1	39.412 D-Q2	38.394 D-Q2	26.664 D-R1
106	Mazda Miata (1999)	Henry Banks	SM	0	1:44.814 A-R1	1:44.277	1:45.060 A-Q1	1:44.814 A-R1	1:45.227 A-R1	+2.659 A-R1	109.0 A-R1	39.182 A-R1	38.512 A-R1	26.583 A-R1
107	Mazda Miata (1999)	Lucas Jensen	SM	55, 56	1:44.861 A-R1	1:44.746	1:45.717 A-Q2	1:44.861 A-R1	1:45.631 A-R1	+2.721 A-R1	109.1 A-R1	39.160 A-R1	38.737 A-R1	26.849 A-R1
108	Mazda Miata (1999)	Mike Ryan	SM	120	1:44.886 C-Q1	1:44.823	1:44.886 C-Q1	1:46.343 C-R2	1:53.976 C-R2	+26.758 C-R2	103.2 C-Q1	39.385 C-Q1	38.372 C-Q1	27.066 B-P
109	Lotus Exige	Anthony Geraci	SM	8	1:44.891 D-R1	1:44.642	1:45.028 D-Q2	1:44.891 D-R1	1:45.664 D-R1	+1.775 D-R1	110.7 D-Q2	39.247 D-R1	38.540 D-R1	26.855 D-Q2
110	Mazda Miata (1999)	Niko Fondrini	SM	151	1:44.919 C-Q1	1:44.576	1:44.919 C-Q1	1:45.123 C-R2	1:45.952 C-R2	+19.862 C-R2	103.0 C-Q1	39.163 C-R2	38.517 C-Q1	26.896 C-Q1
111	Mazda Miata (1999)	Cohen Craft	SM	74	1:44.922 A-R1	1:44.640	1:45.707 A-Q1	1:44.922 A-R1	1:45.716 A-R1	+2.857 A-R1	110.0 A-R1	39.216 A-R1	38.521 A-R1	26.903 A-R1
112	Mazda Miata (1999)	Jordan Rick Segrini	SM	108	1:44.976 D-Q2	1:44.510	1:44.976 D-Q2	1:45.003 D-R1	1:45.242 D-R1	+0.429 D-R1	110.2 D-R1	39.023 D-Q2	38.544 D-Q2	26.943 D-Q2
113	Mazda Miata	Jay Thomas	SM	70	1:45.049 A-Q2	1:44.765	1:45.049 A-Q2	1:46.218 A-R1	1:47.460 A-R1	+3.843 A-R1	109.7 A-R1	39.288 A-R1	38.617 A-R1	26.860 A-Q2
114	Mazda Miata (2002)	Jason Fichter	SM	7	1:45.116 C-R2	1:44.882	1:46.150 C-Q2	1:45.116 C-R2	1:45.946 C-R2	+19.298 C-R2	101.9 C-R2	39.386 C-R2	38.482 C-R2	27.014 C-R2
115	Mazda Miata	John Hamner	SM	07, 7	1:45.268 A-Q1	1:44.679	1:45.268 A-Q1	1:45.845 A-R1	1:47.438 A-R1	+3.532 A-R1	110.5 A-R1	39.469 A-Q1	38.514 A-R1	26.696 A-R1
116	Mazda Miata (1999)	Logan Cozzie	SM	96	1:45.374 D-R1	1:45.057	1:45.523 D-Q2	1:45.374 D-R1	1:45.918 D-R1	+2.722 D-R1	109.4 D-Q2	39.217 D-R1	38.769 D-R1	27.071 D-R1
117	Mazda Miata (2003)	Jesse Singer	SM	192	1:45.409 D-R1	1:44.940	1:45.796 C-Q2	1:45.409 D-R1	1:46.607 D-R1	+3.837 D-R1	109.1 D-Q2	39.519 C-Q2	38.695 C-Q1	26.726 D-R1
118	Mazda Miata (2003)	Steven Clemons JR.	SM	75	1:45.537 D-Q2	1:45.537	1:45.537 D-Q2	1:46.111 D-R1	1:46.890 D-R1	+1.935 D-R1	108.7 D-Q2	39.597 D-R1	38.902 D-R1	27.057 D-Q2
119	Mazda Miata (1999)	Justin Ferraro	SM	8	1:45.546 A-Q1	1:45.546	1:45.546 A-Q1				109.8 A-Q1	39.647 A-Q1	38.710 A-Q1	27.189 A-Q1
120	Mazda Miata (1999)	Max Schweid	SM	91	1:45.567 D-R1	1:45.343	1:46.271 D-Q2	1:45.567 D-R1	1:46.341 D-R1	+2.946 D-R1	108.7 D-R1	39.325 D-R1	38.989 D-R1	27.029 D-R1
121	Mazda Miata (2002)	Jillian Fichter	SM	12	1:45.611 C-Q1	1:44.993	1:45.611 C-Q1	1:46.338 C-R2	1:47.089 C-R2	+15.725 C-R2	103.6 C-R2	39.331 C-R2	38.503 C-R2	27.159 C-Q1
122	Mazda Miata (2000)	Riley Haig	SM	05	1:45.614 A-Q1	1:45.544	1:45.614 A-Q1	1:46.824 A-R1	1:47.450 A-R1	+1.831 A-R1	109.1 A-Q1	39.758 A-Q1	38.724 A-Q1	27.062 A-Q1, A-R1
123	Mazda Miata (2003)	Thomas Paolino	SM	34	1:45.798 D-R1	1:45.647	1:46.298 D-Q2	1:45.798 D-R1	1:46.666 D-R1	+2.469 D-R1	108.8 D-R1	39.779 D-R1	38.735 D-R1	27.133 D-R1
124	Mazda Miata (1999)	Tal Tsfany	SM	10, 22	1:45.846 A-Q1	1:45.846	1:45.846 A-Q1	1:46.986 A-R1	1:48.029 A-R1	+3.535 A-R1	110.0 A-R1	39.862 A-Q1	38.926 A-Q1	27.058 A-Q1
125	Mazda Miata (2004)	Domenico Leuci	SM	46	1:45.932 D-Q2	1:45.849	1:45.932 D-Q2	1:46.242 D-R1	1:46.668 D-R1	+2.832 D-R1	108.8 D-R1	39.687 D-Q2	38.986 D-R1	27.176 D-Q2
126	Mazda Miata (1999)	Mickey Moran	SM	25	1:45.939 D-R1	1:45.202	1:46.260 D-Q2	1:45.939 D-R1	1:46.411 D-R1	+2.638 D-R1	109.6 D-Q2	39.806 D-R1	38.489 D-R1	26.907 D-Q2
127	Mazda Miata (1999)	Grant Janish	SM	178	1:45.986 D-Q2	1:45.626	1:45.986 D-Q2	1:46.317 D-R1	1:47.153 D-R1	+2.508 D-R1	111.3 D-R1	39.685 D-R1	38.884 D-R1	27.057 D-Q2
128	Mazda Miata (1999)	Brian Tone	SM	155	1:46.056 C-Q1	1:45.357	1:46.056 C-Q1	1:46.089 C-R2	1:46.893 C-R2	+12.548 C-R2	102.3 C-R2	39.339 C-Q1	38.853 C-Q2	27.165 C-R2
129	Mazda Miata (1999)	Hayden Manis	SM	88	1:46.149 C-Q1	1:44.212	1:46.149 C-Q1	1:46.279 C-R2	1:47.717 C-R2	+13.621 C-R2	103.0 C-R2	38.813 C-R2	38.565 C-R2	26.834 C-R2
130	Mazda Miata (1999)	Robert Garrison	SM	06	1:46.158 A-Q1	1:45.791	1:46.158 A-Q1	1:47.037 A-R1	1:47.852 A-R1	+3.463 A-R1	108.6 A-R1	40.157 A-Q1	38.699 A-Q1	26.935 A-R1
131	Mazda Miata (1999)	Mike Cottrell	SM	99	1:46.195 C-R2	1:45.060	1:46.236 C-Q2	1:46.195 C-R2	1:46.732 C-R2	+15.205 C-R2	104.0 C-R2	39.674 C-R2	38.288 C-R2	27.098 C-R2
132	Mazda Miata (1999)	Randall Joe	SM	65	1:46.461 B-Q1	1:45.884	1:46.461 B-Q1	1:46.502 A-R1	1:47.158 D-R1	+1.398 D-R1	108.8 D-Q1	39.996 A-R1	38.690 C-Q1	27.198 B-Q1
133	Mazda Miata (2001)	Rob Trollinger	SM	94	1:46.653 D-Q2	1:46.653	1:46.653 D-Q2	1:47.296 D-R1	1:48.797 D-R1	+2.938 D-R1	109.5 D-R1	41.768 D-R1	39.134 D-R1	27.356 D-Q2
134	Mazda Miata (1999)	Laurin Brallier	SM	76	1:46.778 D-Q2		1:46.778 D-Q2				107.6 D-Q1			27.620 D-Q2
135	Mazda Miata (1999)	Ben Foltz	SM	5	1:46.900 A-R1	1:46.512	1:47.918 A-Q2	1:46.900 A-R1	1:47.586 A-R1	+1.947 A-R1	109.7 A-R1	40.337 A-R1	38.951 A-R1	27.224 A-R1
136	Mazda Miata (1999)	Ryan Peterman	SM	53	1:46.947 B-R2	1:46.435	1:48.292 B-Q2	1:46.947 B-R2	1:48.277 B-R2	+2.185 B-R2	102.6 B-R2	40.139 B-R2	38.963 B-R2	27.333 B-R2
137	Mazda Miata (1999)	Chris Clarke	SM	109	1:47.011 D-R1	1:45.750	1:47.775 D-Q2	1:47.011 D-R1	1:47.584 D-R1	+1.390 D-R1	109.9 D-R2	39.956 D-R1	38.840 D-R1	26.954 D-R1
138	Mazda Miata (2001)	Chris Rawlings	SM	35	1:47.139 A-P	1:46.945					102.5 A-P	39.904 A-P	39.346 A-P	27.695 A-P
139	Mazda Miata (1994)	Mark Zwolle	SM	154	1:47.151 C-R2	1:46.892	1:47.434 C-Q1	1:47.151 C-R2	1:48.302 C-R2	+15.060 C-R2	103.4 C-Q1	40.543 C-Q1	38.928 C-Q1	27.421 C-R2
140	Mazda Miata (1999)	Aaron Parkinson	SM	111	1:47.193 D-Q2	1:46.776	1:47.193 D-Q2	1:48.224 D-R1	1:49.248 D-R1	+2.211 D-R1	109.6 D-Q2	40.426 D-Q2	39.185 D-Q2	27.165 D-Q2
141	Mazda Miata (1999)	William Keeling	SM	11	1:47.254 D-Q2	1:46.788	1:47.254 D-Q2	1:48.070 D-R1	1:49.042 D-R1	+5.577 D-R1	107.7 D-Q2	39.965 D-Q2	39.269 D-R1	27.554 D-Q2
142	Mazda Miata (2001)	Peter Tonell, Ii	SM	18	1:47.326 A-P
143	Mazda 3S	Leann Falk	T4	29	1:47.885 A-Q1	1:47.593	1:47.885 A-Q1	1:49.327 A-R1	1:52.043 A-R1	+11.758 A-R1	110.9 A-Q1	41.580 A-Q1	38.358 A-Q1	27.655 A-Q1
144	Mazda Miata (2001)	Steve Sturm	SM	90	1:48.079 D-Q2	1:47.906	1:48.079 D-Q2	1:48.359 D-R1	1:48.899 D-R1	+4.377 D-R1	108.0 D-R1	40.805 D-Q2	39.205 D-Q2	27.896 D-R1
145	Mazda Miata (1999)	Alex Rubenstein	SM	94	1:48.132 A-Q2	1:48.132	1:48.132 A-Q2	1:49.958 A-R1	1:50.646 A-R1	+7.310 A-R1	107.0 A-Q2	40.813 A-Q2	39.712 A-Q2	27.607 A-Q2
146	Mazda Miata (1999)	Warren Sackman	SM	76	1:48.397 B-P	1:47.853	1:48.681 B-Q1	1:48.947 B-R1	1:49.586 B-R1	+2.335 B-R1	103.4 B-R1	40.796 B-P	39.400 B-Q1	27.657 B-Q1
147	Mazda Miata (1999)	Gavin Wardle	SM	194	1:48.439 B-R2	1:48.290	1:52.795 B-Q2	1:48.439 B-R2	1:50.527 B-R2	+2.484 B-R2	103.4 B-R2	40.760 B-R2	39.873 B-R2	27.657 B-R2
148	Mazda Miata (1991)	Bailey Sigler	SM	59	1:48.485 D-R1	1:47.990	1:49.963 D-Q2	1:48.485 D-R1	1:49.038 D-R1	+5.067 D-R1	109.6 D-R1	40.347 D-R1	39.813 D-R1	27.830 D-R2
149	Mazda Miata (1999)	Alfred Wingo	SM	108	1:48.549 B-Q1	1:47.666	1:48.549 B-Q1	1:48.688 B-R1	1:49.234 B-R2	+1.852 B-R2	104.2 B-R1	40.999 B-R1	39.416 B-R2	27.251 B-Q1
150	Mazda Miata (1999)	Jason Greenwood	SM	100	1:48.679 D-R1	1:48.679	1:51.015 D-Q2	1:48.679 D-R1	1:49.618 D-R1	+7.053 D-R1	106.2 D-Q2	41.162 D-R1	39.930 D-R1	27.587 D-R1
151	Scion FR-S	Jennifer Roames	T4	186	1:48.835 D-Q1	1:47.483	1:48.835 D-Q1				113.0 D-Q2	41.553 D-Q2	38.692 D-Q1	27.238 D-Q1
152	Mini Cooper	Frank Schwartz	B-Spec	27	1:49.265 D-R1	1:48.920	1:49.470 D-Q2	1:49.265 D-R1	1:50.360 D-R1	+1.512 D-R1	101.2 D-Q1	40.310 D-R1	40.626 D-Q2	27.984 D-R1
153	Mazda 2	Franklin Futrelle	B-Spec	34	1:49.292 A-Q1	1:49.292	1:49.292 A-Q1	1:50.565 A-R1	1:50.996 A-R1	+0.936 A-R1	101.8 A-Q1	40.963 A-Q1	40.187 A-Q1	28.142 A-Q1
154	Mazda Miata (1999)	Bruce Allen	SM	43	1:49.309 C-R2	1:48.918	1:50.500 C-Q2	1:49.309 C-R2	1:50.392 C-R2	+21.271 C-R2	100.2 C-Q1	41.391 C-R2	39.541 C-R2	27.986 C-R2
155	Mazda 2	Gale Corley	B-Spec	89, 59	1:49.511 B-R2	1:49.483	1:50.459 B-Q2	1:49.511 B-R2	1:50.052 B-R2	+1.737 B-R2	101.9 A-R1	40.987 B-R2	40.312 B-R2	28.184 B-R2
156	Mini Cooper	Conner Kelleher	B-Spec	4	1:49.558 D-Q2	1:49.327	1:49.558 D-Q2	1:49.577 D-R1	1:50.782 D-R1	+1.724 D-R1	102.0 D-R2	40.531 D-Q2	40.649 D-R1	28.147 D-R1
157	Mazda 2	Chris Taylor	B-Spec	46, 134, 62	1:49.559 B-R2	1:49.497	1:51.049 B-Q2	1:49.559 B-R2	1:50.307 B-R2	+1.648 B-R2	101.8 A-R1	40.979 B-R2	40.437 B-R2	28.081 B-R2
158	Chevrolet Sonic	Josh Schmidt	B-Spec	19, 119	1:49.809 B-R2	1:49.341	1:50.923 A-Q1	1:49.809 B-R2	1:50.374 B-R2	+0.925 B-R2	102.7 A-R1	41.125 B-R2	40.059 B-R2	28.157 B-R2
159	Honda Fit	Blair Deffenbaugh	B-Spec	187, 87	1:49.992 B-R2	sector data unreliable	1:50.812 B-Q2	1:49.992 B-R2	1:50.767 B-R2	+1.509 B-R2	102.4 D-R1	41.213	1.054	28.113
160	Mazda 2	Rice Last Name	B-Spec	50	1:50.152 A-P	1:50.152					93.7 A-P	41.237 A-P	40.906 A-P	28.485 A-P
161	Mazda Miata (2001)	Brayton Williams	SM	04	1:50.229 A-R1	1:49.966	1:53.547 A-Q1	1:50.229 A-R1	1:53.432 A-R1	+9.471 A-R1	103.6 A-R1	41.720 A-R1	40.135 A-R1	28.111 A-R1
162	Mazda Miata (1992)	Brad Williams	SM	17	1:50.296 D-Q2	1:50.296	1:50.296 D-Q2	1:57.449 D-R1	1:58.430 D-R1	+2.940 D-R1	105.5 D-Q1	42.258 D-Q2	40.085 D-Q2	27.953 D-Q2
163	Mini Cooper	Thomas Pendergrass	B-Spec	156	1:50.340 A-P	1:50.296	1:51.359 A-Q1	1:51.797 A-R1	1:52.633 A-R1	+1.033 A-R1	101.4 A-Q1	40.886 A-Q1	40.749 A-Q1	28.661 A-P
164	Mazda 2	Unknown Driver	B-Spec	62	1:50.378 A-Q1	1:50.378	1:50.378 A-Q1				101.6 A-Q1	41.391 A-Q1	40.644 A-Q1	28.343 A-Q1
165	Honda Fit	Luke Russell	B-Spec	75	1:50.395 D-R1	1:49.937	1:50.745 D-Q2	1:50.395 D-R1	1:51.096 D-R1	+1.718 D-R1	100.9 D-R1	40.903 D-Q2	40.797 D-R1	28.237 D-R1
166	Chevrolet Sonic	Stewart Black	B-Spec	40	1:50.567 B-R2	1:49.800	1:50.860 B-Q2	1:50.567 B-R2	1:51.358 B-R2	+1.232 B-R2	101.7 A-Q1	41.039 B-Q2	40.534 B-R2	28.227 B-P
167	Mazda 2	John Robinson III	B-Spec	35	1:50.813 A-R1	1:50.595	1:51.337 A-Q1	1:50.813 A-R1	1:51.652 A-R1	+1.670 A-R1	103.5 A-R1	41.571 A-R1	40.659 A-R1	28.365 A-R1
168	Mazda 2	Rice Robinson	B-Spec	62, 50	1:50.840 A-Q1	1:50.337	1:50.840 A-Q1	1:50.919 A-R1	1:51.596 A-R1	+1.402 A-R1	101.4 A-R1	41.297 A-Q1	40.698 A-R1	28.342 B-R2
169	Mazda 2	Stephanie Andersen	B-Spec	138	1:50.845 A-R1	1:50.348	1:50.987 D-Q2	1:50.845 A-R1	1:51.618 A-R1	+1.152 A-R1	101.9 A-Q2	41.604 A-R1	40.433 A-R1	28.311 A-R1
170	Mazda 2	Joe McClughan	B-Spec	36	1:51.029 D-R1	1:50.598	1:51.915 D-Q2	1:51.029 D-R1	1:52.174 D-R1	+2.391 D-R1	101.8 D-R1	41.496 B-R2	40.612 B-R2	28.490 D-R1
171	Honda Fit	Jason Grant	B-Spec	02	1:51.261 B-R2	1:51.080	1:54.567 B-Q2	1:51.261 B-R2	1:51.923 B-R2	+1.434 B-R2	96.5 B-R2	41.707 B-R2	41.074 B-R2	28.299 B-R2
172	Honda Fit	Eric Yagel	B-Spec	46	1:51.291 A-R1	1:50.692	1:51.611 A-Q1	1:51.291 A-R1	1:51.710 A-R1	+0.824 A-R1	102.3 A-R1	41.728 A-R1	40.703 A-R1	28.261 A-Q1
173	Mazda 2	Kent Carter	B-Spec	192, 191	1:51.919 A-Q1	1:51.391	1:51.919 A-Q1	1:52.033 D-R1	1:52.632 A-R1	+0.739 A-R1	101.1 A-Q1	41.938 D-Q2	40.822 A-Q1	28.631 A-P
174	Nissan Versa Note	Richard Osborne	B-Spec	151	1:52.304 A-Q1	1:52.145	1:52.304 A-Q1	1:53.204 A-R1	1:53.800 A-R1	+0.988 A-R1	101.6 A-R1	42.185 A-Q1	41.351 A-R1	28.609 A-Q1
175	Toyota Yaris	Joseph Gersch	B-Spec	119, 38	1:52.306 A-Q1	1:52.155	1:52.306 A-Q1	1:53.523 A-R1	1:53.841 A-R1	+0.767 A-R1	100.6 A-Q1	42.132 A-Q1	41.212 A-Q1	28.811 A-Q1
176	Honda Fit	Daniel Wold	B-Spec	54	1:52.311 D-R1	1:51.926	1:53.239 D-Q2	1:52.311 D-R1	1:53.422 D-R1	+1.284 D-R1	100.3 D-R1	42.064 D-R1	41.315 D-R1	28.547 D-R1
177	Mazda 2	John Phillips	B-Spec	2	1:52.342 D-Q2	1:51.978	1:52.342 D-Q2	1:52.572 D-R1	1:53.539 D-R1	+1.503 D-R1	100.3 D-R1	41.866 D-R1	41.240 D-Q2	28.872 D-R1
178	Mini Hatchback	Jacob New	B-Spec	07	1:52.854 A-R1	1:52.854	1:53.300 A-Q1	1:52.854 A-R1	1:53.820 A-R1	+1.022 A-R1	96.6 A-R2	41.977 A-Q1	41.751 A-Q1	29.201 A-Q1
179	Mini Cooper	C. Lee Davis	B-Spec	84	1:53.787 B-R2	1:52.945	1:54.133 B-Q2	1:53.787 B-R2	1:54.021 B-R2	+2.205 B-R2	93.8 B-R2	42.957 B-R2	41.233 B-R2	28.755 B-R2
180	Mazda 2	John Robinson	B-Spec	46	1:54.380 B-Q1	1:54.326	1:54.380 B-Q1				93.1 B-P	43.094 B-Q1	41.712 B-Q1	29.520 B-Q1
181	Chevrolet Sonic	Todd Blevins	B-Spec	95	2:03.373 A-R1	2:02.970	2:05.257 A-Q1	2:03.373 A-R1	2:06.019 A-R1	+3.099 A-R1	93.7 A-R1	47.501 A-R1	44.245 A-R1	31.224 A-R1

One row per driver and car (a driver who changed cars has a row for each). Each cell is that driver's best in that car across the selected events, with the session it was set in. Best 5-lap stint is the mean of the driver's quickest five consecutive race laps, and consistency is how far their median race lap sat behind their best in that race (small is a driver who does it every lap); both come from the race with the best stint. The fastest in each column is purple, and a car whose best lap is more than 115% of the fastest in its class is greyed (marked ">115%" beside the driver) and left out of the colour scale. Click a column to sort, a row to highlight it. Theoretical lap is the sum of the best sectors, whichever laps they came from, and never slower than the best lap (where a car's fastest laps were recorded without sector times, its best lap is used). The 115% mark is about the car's best lap only: a car whose best lap is within 115% of the fastest in its class is never marked. Greyed sectors with no theoretical lap mean the sector times on file do not add up to a believable lap. Letters refer to the events above; Q is qualifying, R a race.

Sectors

S1 SF → IM1
S2 IM1 → IM2
S3 IM2 → SF
SPd IM2 → IM3 0.02 mi

Sectors are numbered in lap order from start/finish, whatever each event's timing called them; the loop names are SCCA timing's.

By car

Car	Class	Drivers	Lap	Qual	Race	Trap	S1	S2	S3
Ford Mustang	AS/T4	6	1:34.642Michael Kamalian	1:35.467Thomas J Ellis	1:34.642Michael Kamalian	140.9Michael Kamalian	37.067Michael Kamalian	0.916Scotty B White	24.028Michael Kamalian
Ford Mustang	AS/T4	5	1:34.642Michael Kamalian	1:35.467Thomas J Ellis	1:34.642Michael Kamalian	140.9Michael Kamalian	37.067Michael Kamalian	0.916Scotty B White	24.028Michael Kamalian
Ford Mustang GT	AS	1	1:36.389James Jost	1:38.195James Jost	1:36.389James Jost	138.6James Jost	38.069James Jost	32.794James Jost	24.669James Jost
Mazda Miata	SM/T4	135	1:38.841Jonathan Neudorf	1:38.841Jonathan Neudorf	1:40.155Ethan Barker	118.1Jonathan Neudorf	37.070Jonathan Neudorf	0.806Skyler Cottrell	25.241Jonathan Neudorf
Mazda Miata	SM/T4	8	1:38.841Jonathan Neudorf	1:38.841Jonathan Neudorf	1:40.155Ethan Barker	118.1Jonathan Neudorf	37.070Jonathan Neudorf	36.372Jonathan Neudorf	25.241Jonathan Neudorf
Mazda Miata (2001)	SM	20	1:42.071Stanley Brock Jr	1:42.324Skyler Cottrell	1:42.619Stanley Brock Jr	111.8Stanley Brock Jr	38.166Stanley Brock Jr	0.806Skyler Cottrell	25.854Skyler Cottrell
Mazda Miata (1999)	SM	55	1:42.453John Salerno	1:42.453John Salerno	1:42.611Travis Wiley	112.2Jonathan Neudorf	38.256Danny Steyn	37.750John Salerno	26.162Ethan Goulart
Mazda Miata (2003)	SM	8	1:42.553Charles Mactutus	1:42.619Charles Mactutus	1:42.553Charles Mactutus	111.4Charles Mactutus	38.190Charles Mactutus	37.772Charles Mactutus	26.223Charles Mactutus
Mazda Miata (2002)	SM	5	1:42.684Logan Stretch	1:42.684Logan Stretch	1:42.933Logan Stretch	111.6Logan Stretch	38.342Logan Stretch	37.764Jarrett Jones	26.226Logan Stretch
Mazda Miata (2004)	SM	3	1:42.738Francisco Barroso	1:43.360Francisco Barroso	1:42.738Francisco Barroso	111.4Francisco Barroso	38.441Francisco Barroso	37.969Francisco Barroso	26.322Francisco Barroso
Mazda Miata (2000)	SM	3	1:42.741James Newell	1:42.741James Newell	1:42.822James Newell	112.2James Newell	38.453James Newll	37.797James Newell	26.176James Newell
Mazda Miata (2002)	SM	5	1:42.965Nicholas Bruni	1:43.156Nicholas Bruni	1:42.965Nicholas Bruni	111.3Nicholas Bruni	38.282Nicholas Bruni	37.803Nicholas Bruni	26.431Nicholas Bruni
Mazda Miata (2005)	SM	1	1:43.034Jim Drago	1:43.034Jim Drago	1:43.345Jim Drago	111.6Jim Drago	38.583Jim Drago	37.940Jim Drago	26.304Jim Drago
Mazda Miata (2001)	SM	5	1:43.137Skip Brock_Jr	1:43.221Skip Brock_Jr	1:43.137Skip Brock_Jr	104.8Skip Brock_Jr	38.330Brandon Collins	37.918Brandon Collins	26.440Skip Brock_Jr
Mazda Miata (2000)	SM	2	1:43.170Tyler Brown	1:43.696Tyler Brown	1:43.170Tyler Brown	105.2Tyler Brown	38.475Tyler Brown	37.828Tyler Brown	26.545Max Ehrlich
Mazda Miata (1991)	SM	2	1:43.366David Stern	1:43.366David Stern	1:44.158David Stern	110.9David Stern	38.849David Stern	37.936David Stern	26.571David Stern
Mazda Miata (2005)	SM	1	1:43.367Senter Smith	1:43.946Senter Smith	1:43.367Senter Smith	103.8Senter Smith	38.557Senter Smith	37.910Senter Smith	26.681Senter Smith
Mazda Miata (2004)	SM	1	1:43.430Frankie Barroso	1:43.900Frankie Barroso	1:43.430Frankie Barroso	111.6Frankie Barroso	38.730Frankie Barroso	38.005Frankie Barroso	26.401Frankie Barroso
Mazda Miata (1997)	SM	2	1:43.449Cliff Brown	1:43.449Cliff Brown	1:43.780Cliff Brown	110.8Cliff Brown	38.716Cliff Brown	37.968Marc Cefalo	26.394Cliff Brown
Mazda Miata (1999)	SM	10	1:43.486Andrew Devoto	1:43.606Luke Pullen	1:43.486Andrew Devoto	104.0Andrew Devoto	38.381Andrew Devoto	38.142Andrew Devoto	26.496Tyler Klein
Mazda Miata (1994)	SM	1	1:43.685Chris Allen	1:43.760Chris Allen	1:43.685Chris Allen	111.5Chris Allen	38.909Chris Allen	38.070Chris Allen	26.280Chris Allen
Mazda Miata (2021)	SM	1	1:44.629Jeremy Fletcher	1:44.629Jeremy Fletcher	1:45.012Jeremy Fletcher	111.0Jeremy Fletcher	39.933Jeremy Fletcher	38.339Jeremy Fletcher	26.715Jeremy Fletcher
Mazda Miata (2003)	SM	1	1:45.409Jesse Singer	1:45.796Jesse Singer	1:45.409Jesse Singer	109.1Jesse Singer	39.519Jesse Singer	38.695Jesse Singer	26.726Jesse Singer
Mazda Miata (1994)	SM	1	1:47.151Mark Zwolle	1:47.434Mark Zwolle	1:47.151Mark Zwolle	103.4Mark Zwolle	40.543Mark Zwolle	38.928Mark Zwolle	27.421Mark Zwolle
Mazda Miata (1992)	SM	1	1:50.296Brad Williams	1:50.296Brad Williams	1:57.449Brad Williams	105.5Brad Williams	42.258Brad Williams	40.085Brad Williams	27.953Brad Williams
Mazda MX-5	T4	5	1:39.119Marc Cefalo	1:39.119Marc Cefalo	1:40.456Marc Cefalo	119.5Kevin Fryer	37.431Marc Cefalo	0.759Robert Spence	25.184Marc Cefalo
Mazda RX-8	T4	1	1:39.654Marc Cefalo	1:40.096Marc Cefalo	1:39.654Marc Cefalo	111.1Marc Cefalo	37.643Marc Cefalo	36.384Marc Cefalo	25.393Marc Cefalo
Subaru BRZ	T4	1	1:40.432Angelica Sprehe	1:40.432Angelica Sprehe	1:41.411Angelica Sprehe	123.5Angelica Sprehe	38.670Angelica Sprehe	35.608Angelica Sprehe	25.807Angelica Sprehe
Toyota GR86	T4	1	1:41.397Angelica Sprehe	1:41.397Angelica Sprehe	1:42.072Angelica Sprehe	121.0Angelica Sprehe	39.312Angelica Sprehe	36.256Angelica Sprehe	25.821Angelica Sprehe
Chevrolet Camaro Z-28	AS	1	1:44.301Phillip Waters	1:44.301Phillip Waters	2:00.265Phillip Waters	130.0Phillip Waters	42.124Phillip Waters	35.315Phillip Waters	26.862Phillip Waters
Lotus Exige	SM	1	1:44.891Anthony Geraci	1:45.028Anthony Geraci	1:44.891Anthony Geraci	110.7Anthony Geraci	39.247Anthony Geraci	38.540Anthony Geraci	26.855Anthony Geraci
Mazda 3S	T4	1	1:47.885Leann Falk	1:47.885Leann Falk	1:49.327Leann Falk	110.9Leann Falk	41.580Leann Falk	38.358Leann Falk	27.655Leann Falk
Scion FR-S	T4	1	1:48.835Jennifer Roames	1:48.835Jennifer Roames		113.0Jennifer Roames	41.553Jennifer Roames	38.692Jennifer Roames	27.238Jennifer Roames
Mini Cooper	B-Spec	4	1:49.265Frank Schwartz	1:49.470Frank Schwartz	1:49.265Frank Schwartz	102.0Conner Kelleher	40.310Frank Schwartz	40.626Frank Schwartz	27.984Frank Schwartz
Mazda 2	B-Spec	12	1:49.292Franklin Futrelle	1:49.292Franklin Futrelle	1:49.511Gale Corley	103.5John Robinson III	40.963Franklin Futrelle	40.187Franklin Futrelle	28.081Chris Taylor
Chevrolet Sonic	B-Spec	3	1:49.809Josh Schmidt	1:50.860Stewart Black	1:49.809Josh Schmidt	102.7Josh Schmidt	41.039Stewart Black	40.059Josh Schmidt	28.157Josh Schmidt
Honda Fit	B-Spec	5	1:49.992Blair Deffenbaugh	1:50.745Luke Russell	1:49.992Blair Deffenbaugh	102.4Blair Deffenbaugh	40.903Luke Russell	1.054Blair Deffenbaugh	28.113Blair Deffenbaugh
Nissan Versa Note	B-Spec	1	1:52.304Richard Osborne	1:52.304Richard Osborne	1:53.204Richard Osborne	101.6Richard Osborne	42.185Richard Osborne	41.351Richard Osborne	28.609Richard Osborne
Toyota Yaris	B-Spec	1	1:52.306Joseph Gersch	1:52.306Joseph Gersch	1:53.523Joseph Gersch	100.6Joseph Gersch	42.132Joseph Gersch	41.212Joseph Gersch	28.811Joseph Gersch
Mini Hatchback	B-Spec	1	1:52.854Jacob New	1:53.300Jacob New	1:52.854Jacob New	96.6Jacob New	41.977Jacob New	41.751Jacob New	29.201Jacob New

The best any driver of each car managed across the selected events, with who set it. Spellings and model years of the same car are grouped; click a row marked ▸ to see each version. Grouping is worked out from the names, so tell us if two cars are wrongly merged or split.

Rule changes between these events

Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta → Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta 2023-03-10 to 2024-03-08

2023-04-01 T4 Request to Classify 2004-2008 Acura TSX in T4

#33590 from William Phee · Rule change · TB 23-04 (2023-04 Fastrack)

Summary

cars addedAcura TSX 2004-2008 newly classified in T4 at 3000 lbs minimum weight with 2354cc engine.

As printed in Fastrack

In T4 Spec lines, classify Acura TSX (2004-2008) as follows:

A specification table follows in the original; it is not shown here.

2023-04-01 T4 T4 Mustang Brakes/Swaybar

#34036 from Scotty B White · Rule change · TB 23-04 (2023-04 Fastrack)

Summary

fasterT4 Mustang rear sway bar increases from 22mm to 28mm permitted.

As printed in Fastrack

In T4 Spec Lines, Ford Mustang (2005-2010), change Notes as follows:
"Any sway bar up to F: 35mm and R: ~~22mm~~ 28mm permitted."

Applies to Ford Mustang on this page: Scotty B White, Paolo Salvatore

2023-05-01 B-Spec T5 Rules Feedback

#33595 from Morgan Trotter · Rule change · TB 23-05 (2023-05 Fastrack)

Summary

wordingB-Spec and C-Spec wording clarified: CATEGORY to CATEGORIES, rules priority clarified for tire sizes, rim widths, springs, anti-roll bars, performance equipment.

As printed in Fastrack

In B-Spec, GCR Section 9.1.10.B, add as follows:
“9.1.10. B-SPEC and C-SPEC ~~CATEGORY~~ CATEGORIES
B-Spec (B-Spec)
C-Spec (C-Spec)
9.1.10 continues in the B-SPEC and C-SPEC Category Rules.”
In B-Spec, GCR Section 9.1.10.B-SPEC Category, change as follows:
“These specifications are presented as an adjunct to the Manufacturer’s Service Manual. They are not meant to supersede the
information that is in the manual that legitimately applies to the make, model, and year of car with the exception of the

Show 235 more lines

following items: TIRE SIZES, RIM WIDTHS, SPRINGS, ANTI-ROLL BAR(S), and PERFORMANCE EQUIPMENT. In the case of the
foregoing exceptions, ~~the B-Spec~~ these Competition Rules will have priority.
These specifications reflect the best information available at the time of publication. Any error found in
this edition will be updated when reliable specifications are available from the manufacturer/manufacturer
distributor or other sources recognized by SCCA®, Inc.
A. Definition
The B-Spec and C-Spec ~~CATEGORY~~ categories shall be considered primarily as a form for the membership to race street stock
automobiles. Eligibility of cars may be discontinued at any time, for any reason other than competitive stature. The burden of
proof lies upon any participant seeking action against another participant.
NOTE: A Shop/Service Manual or its equivalent for the specific make, model, and year of automobile is required to be in the
possession of each entrant. Manufacturer Shop/Service Manuals may come in the form of printed material, microfiche, CD, DVD,
and/or Internet access to manufacturer website databases. It is the responsibility of the competitor to provide the electronic
device capable of accessing the data for compliance verification. If Manufacturer Shop/Service Manuals are not available, then
the competitor shall have a copy of the official SCCA® Vehicle Technical Sheet (VTS) with them at every event and shall present it
for reference when officially requested. The manual is intended to aid SCCA® Technical Scrutineers in identifying parts and the
configuration of the automobile. Overhaul procedures that in the slightest way would increase performance are not to be
utilized (e.g., milled heads/blocks, porting, etc.). Blueprinting and balancing are inconsistent with the philosophy of this class and
are not permitted.
B. Automobile Eligibility
Only those cars listed on spec lines are eligible to compete. Cars classified will be approved by EPA and DOT for sale in the
United States and by Environment Canada for sale in Canada. They shall be models available to the general public for purchase.
Additions and deletions of automobiles shall be at the discretion of the SCCA®. The vehicle identification number (VIN) shall
correspond with the model automobile classified. At least one VIN plate or stamping shall remain in place on the dashboard or
chassis that corresponds with the model automobile classified.
C. Classification
Classifications of automobiles eligible for competition will be reviewed on an annual basis and will be effective as of January 1st.
D. Technical and Safety Items
The following represent the only safety items and modifications permitted and required on automobiles involved in B Spec and
C-Spec competition. Cars must meet comply with the GCR. The addition of safety items not specifically listed is not permitted.
No permitted component/modification shall additionally perform a prohibited function.
1. Roll cages shall be contained entirely within the driver/passenger compartment and must comply with GCR Section 9.4, Roll
Cages for GT and Production Based Cars.
2. Installation of a fire extinguisher or fire system as specified in GCR Section 9.3, Fire System.
3. Installation of a safety harness system as specified in GCR Section 9.3, Driver’s Restraint System.
4. All cars shall run with both front door windows fully open (down) if equipped, and shall have a driver’s side window safety net
per GCR Section 9.3, Window Safety Nets. Any cars where a window safety net cannot be installed, arm restraints shall be used.
Arm restraints are not an acceptable substitute for window nets in other cars. Window safety nets shall be mounted in such a
manner to provide protection in the event the driver’s door opens. Rear windows shall be run in the closed (up) position.
5. Passive restraint systems shall be deactivated.*
6. Air bag systems shall be disarmed and may be removed.* If so equipped, the rolling door lock mechanism may be deactivated
by unplugging the components.
7. The driver’s seat (only) shall be replaced with a one-piece, bucket-type race seat. Standard seat tracks/brackets may be
modified, reinforced, and/or removed to facilitate replacement mountings provided they perform no other function.
8. Steering lock mechanisms may be removed or disabled.
9. An electrical master switch may be installed.
*If car is used on public roads, these items should be replaced, reactivated, rearmed, etc. when not in
competition.
E. Vehicle Preparation
The following represents the only items authorized in the preparation of a vehicle for B-Spec and C-Spec competition other than
safety items as required in Section 9.1.7.D, Technical and Safety Items. Modifications shall not be made unless specifically
authorized herein. No permitted component/modification shall additionally perform a prohibited function.
1. Appearance shall be neat and clean. Automobiles that are dirty either externally or in the engine or passenger compartments,
or that show bodywork damage or that are partially or totally in primer, or that do not bear the prescribed identification marks
shall not be approved for competition. Vehicles may be painted any color(s).
2. Towing eyes per GCR Section 9.3, Towing Eyes, shall be fitted.
3. Hubcaps, wheel trim rings, jack, and tools shall be removed.
4. All mud flaps shall be removed.
5. Spare wheels and tires may be removed. Spare tire covers and trunk mats and/or trunk carpeting shall be removed if they
present a hazard as a loose flying or flapping object.
6. All adjustments shall be at the manufacturer’s specification and/or within the manufacturer’s specified tolerances unless they
are specifically allowed in the GCR (example camber angle).
7. Tires:
a. Tires shall be Hankook 205/50R15 C51 or Hankook 200/580R15 Z217. No mixing of wet and dry tires on the same car. Tires
must be run unmodified.
b. When using the wet tire, all cars get a 0.2” lower ride height allowance due to smaller radius of the wet tire.
8. Wheels: Required wheel/rim diameter is fifteen inches (15”). Maximum wheel/rim width is seven inches (7”). Minimum
Wheel/rim weight shall be 13 lbs. All wheels shall be one-piece metal castings or metal two piece welded. All four wheels must
be the same dimensional offset. Aftermarket wheel studs and/or wheel bolts are allowed. Wheel bolts may be replaced with
studs and nuts. Wheel spacers are allowed, the same thickness spacer must be used on all four corners.
Wheels are permitted any offset provided the tire tread (that portion of the tire that contacts the ground) does not protrude
beyond the fender opening when viewed from the top perpendicular to the ground.
9. Radio/stereo audio equipment and air conditioning refrigerant systems are the only options permitted and may be non-
manufacturer, standard equipment. Two way radios may be used. Hand controls are allowed in those instances where the driver
can demonstrate the physical need for them. Removal of rear window wipers and wiper motor is allowed.
10. Fuel, coolant, oil fluid hoses and clamps, oil filters, fuel filters, and belts (fan, alternator, etc.) may be substituted with others
of equivalent manufacturer’s specifications.
11. Brake fluid: May be substituted with other equivalent manufacturer’s specification.
12. Lubricants: Lubricants may be substituted with any lubricant. Additives are unrestricted.
13. Spark Plugs: Authorized spark plugs listed in spark plug manufacturer’s application charts, owner’s manual, manufacturer’s
shop/service manual, or equivalent justified by one cross reference chart. Use of resistor- or non resistor spark plug allowed.
14. “Special performance” specifications from the manufacturer that go beyond those listed on a specification line for a car will
not be considered valid.
Any manufacturer determined to be supplying false specifications to competitors or to SCCA will be advised that the
specifications shall be withdrawn and/or the eligibility of the car(s) involved will be terminated. The SCCA® Club Racing Board
(CRB) is authorized to implement these terminations on an immediate basis without Board of Directors (BoD) approval. In the
case of service circulars, recalls, etc., the burden of proof of validity will be upon the competitor.
15. Ride height: Minimum ride height is six (6) inches, to be measured without driver at the lowest point of the rocker panels,
but not to include welded seams or fasteners. A vehicle may have a ride height listed in the spec line, the competitor must
conform to the spec line.
16. Batteries may be replaced with those of alternate manufacture provided they are of similar amp hour (Ah) capacity and
weight. Battery must remain in stock location. Additional hold-down brackets are allowed.
17. Weight: The minimum weight as listed on the B Spec and C-Spec line is with driver and ballast may be added to meet the
listed minimum weight. Refer to section 9.3. Ballast, for placement of the ballast. If a cool suit system is utilized, the cool suit
system shall be weighed with the car as it came off the track.
A. The ballast shall be in segments no lighter than ten (10) pounds and no heavier than fifty (50) pounds.
B. Each segment shall be fastened with a minimum of two (2) one-half inch (1/2”) bolts and positive lock nuts of SAE Grade
5/Metric 8.8 or better, and shall utilize large diameter, load distributing washers.
18. Fuel: Only the fuel type specified by the owner’s or manufacturer’s shop/service manual may be used. Refer to GCR Section
9.3, Fuel, for permitted fuel specifications.
19. Removal of Air Conditioning System: The manufacturer’s or aftermarket air conditioning system may be removed. Items that
serve a dual purpose, such as the alternator/air conditioning compressor bracket, may not be substituted. Idler pulleys and belts
may be substituted as needed when compressor is removed.
20. Removal of radio and speaker components is permitted. Removal of horn and cruise control system is permitted.
21. A radiator screen of minimum one-fourth inch (1/4”) mesh may be added in front of the radiator and contained within the
bodywork.
22. Air filter elements may be substituted with other air filters of equivalent specifications and fit in the standard location with
no modifications. The filter element must be substantiated by a minimum of one (1) manufacturer cross-reference for specific
vehicle application.
23. Any brake pad or lining may be used. Metal or plastic dust shields may be removed or modified by removing material.
24. Standard replacement brake rotors/drums may be obtained from sources other than the original manufacturer provided
they are the exact equivalent.
25. The Club Racing Board may approve the use of automatic transmissions and/or hand controls on a case-by-case basis.
26. Interior mirror(s) may be replaced with a multi-panel type mirror, but shall not extend beyond the confines of the interior.
27. Only OE catalyst are permitted. The exhaust system downstream of the primary catalyst may be replaced provided:
A. Said replacement system retains the same original configuration, e.g., routing, single, dual, etc.
B. The system exits from the body in the same approximate location(s) as the original. When an original equipment single
exhaust system is cosmetically split into dual outlets, it is permitted to continue as a single system provided it exits in
approximately the same location as one of the originals.
C. The system meets all appropriate event-specific sound level requirements.
D. All oxygen sensors must be intact and in stock location.
E. Primary catalytic converter may not be modified in any way.
F . The Mazda 2, Fiat 500, 2007-10 Mini Cooper all may remove the primary cat/exhaust manifold to install their approved
header. All oxygen sensors must be maintained. The original heat shields or heat wrap may be used to insulate the replacement
header from objects they come close to.
28. Aftermarket steering wheels, and their required mounting modifications, are permitted. Removable steering wheels are
permitted.
29. Lap Timing and Data Acquisition Devices that perform no function other than to relay lap times to the driver (Longacre Hot
Lap, Intercomp Lap Timer, etc.) are permitted, along with the required mounting hardware and connections. Stand-alone data
acquisition systems (GPS or accelerometer-based) are allowed. One connection from the OBD2 port to the stand-alone data
acquisition system is permitted. No additional sensors may be added and the data acquisition system must not tie into the
vehicle electronics in any other manner beyond this allowance. The SCCA may install a standalone data box in a competitor’s car
at any time. Refusal of the installation of the data box will result in disqualification.
Analog (needle type) gauges for oil pressure, oil temp and water temp may be added as long as they are not tied into the
vehicles ECU in any way. Stand alone shift lights may be added.
30. Sunroofs, Targa tops, and T-tops are only permitted if installed by the manufacturer of the vehicle. If installed they must be
retained in the closed position and securely bolted in place unless the operating rails adequately secure the panel. Glass panels
are permitted. Glass panels may be replaced with a ferrous metal panel. Components (motors, cables, rails) may be removed
provided the panel is securely retained.
31. Hatchback “privacy covers” must be completely removed.
32. Cosmetic plastic engine covers may be removed.
33. Original brake and clutch hoses may be replaced by braided stainless steel brake lines and clutch lines.
34. Interiors may be removed including seats, seat brackets, carpet, carpet padding, rear door panels, OEM seat belts, interior
trim, and headliners. Front door window glass, front window operating mechanism, inner door trim panel, armrest, map
pockets, wiring harnesses for front door locks, power mirrors, seat wiring, etc., and inside front door latch/lock operating
mechanism may be removed. Original radio/ stereo audio equipment and air conditioner refrigerant systems may be removed.
Heater cores, and hoses, must remain except duct work under seats. Duct work behind the dash may be trimmed but not
removed to allow for roll cage installation.
35. Maximum 3.5 degrees negative camber is allowed on front and rear suspensions. Strut suspensions may adjust camber by
the use of eccentric bolts (crash bolts) at the strut-to-spindle, slotted strut mounting holes at the spindle, and/or by use of any
slotted camber only adjuster plate at the top of the strut mounting plate. If upper strut slotted plates are used, they shall be
located on existing chassis structure and may not serve as reinforcement for that structure. Modifications to the top of the strut
tower may be made to allow for camber adjustment only. Modifications to the existing holes must only be moved straight
inboard even if the existing slots would translate the top of the strut rearward. On other forms of suspension, camber
adjustment may be achieved by the use of shims and/or eccentric bolts (crash bolts).
36. Suspension: competitors may use the OEM suspension, the specific suspension kit approved on the spec line or any B14
Bilstein shock or strut with no modifications except as required for mounting or to achieve allowed camber. Any camber plate
may be used, but may not alter caster. Caster shall be within factory specification. Any part required to adapt the B14’s to the
car must be submitted for approval by the CRB and added to the individual spec line. Any spring, in~~cluding ‘helper’ or ‘tender’~~
~~springs~~, up to a maximum spring rate of 500 pounds may be used. Helper springs made of thin flat wire that are designed to take
up the gap between the main spring and shock/strut at full travel are allowed. Tender springs are not allowed. Springs are
allowed to be strapped or zip tied to the body. The purpose of the strap should be to keep the spring in place when the axle goes
into rebound. The strap can serve no other function. Bump stops may be deleted but cannot be modified or substituted and
shall serve no other purpose. Adjustable sway bar end links may be used on all cars. Sway bars may be disconnected and
removed.
If a manufacture does not offer an upgrade, a competitor may submit a shock and spring package for approval by the CRB. At the
time of approval, that kit will become the standard for that make and model until the manufacture submits a factory supported
kit.
The competitor supplied kits needs to be comprised of the following:
• Any non-adjustable shock absorber intended for the specific make model and year car is allowed. The shock absorber must be
installed in the original mounting locations. Remote shocks are not permitted. Threaded shock bodies or adjusters may be used.
• Any spring up to a maximum spring rate of 500 pounds may be used with the OEM suspension, the
manufacturer’s upgraded suspension kit, or the Bilstein B14 suspension kit.
37. ECU/PCM: OEM ECU/PCMs is required. Alternate engine calibrations are allowed. The car may meet federal emission
standards, but shall provide OBD II compliant data to the data link connector. Manufacturers may provide a stability control
override procedure or module.
38. B Spec and C-Spec front and rear toe settings are free. Rear toe adjustments may be achieved by the use of shims.
39. Fenders and wheel openings shall remain unmodified. It is permitted to roll under or flatten any interior lip on the wheel
opening for tire clearance. Cars with plastic/composite fenders may remove any interior wheel opening lip, but the resulting
material edge shall be no thinner than the basic fender material thickness. Non metallic inner fender liners may be removed.
40. An oil catch can is permitted.
41. Optional Hood Pins may be added to supplement the original hood latch system. All parts of the original hood latch system
must remain in the car.
42. Brake ducts are permitted, but they must serve no other purpose. Duct openings may be created by the removal of the fog
lights. Alternatively, duct openings may be created by opening 2 sections up to 14.5 square inches each of stock false grills
originally located in the front fascia, or radiator shroud, but in this case while fog lamps may be removed. Fog light holes must
be completely covered. The stock headlamp location is not permitted for brake ducting.
43. Automatic and cvt transmissions versions of all legal cars are legal for competition in B-Spec and C-Spec meeting their spec
line. Models with OEM paddle shifters are acceptable. Auxiliary transmission coolers may be approved on a case by case basis.
Part numbers must be submitted and added to the cars spec line.
44. Auxiliary transmission coolers may be approved on a case by case basis. Part numbers must be submitted and added to the
cars spec line.
45. Restrictor – BS B-Spec and C-Spec cars whose spec line require a restrictor will follow the definition of a Flat Plate Restrictor
(FPR) outlined in Appendix F with only one exception, B-Spec and C-Spec requires the thickness of the Restrictor to be 0.050” to
0.079.
46. All B-Spec and C-Spec cars in post-race impound at all Majors and Super Tour races shall open their hoods and
hatches/trunks for the purpose of visual inspection by other competitors. Competitors may thereafter initiate a protest as
permitted under the GCR.”
In GCR, CONTENTS, change as follows:
“9.1.9.2 TOURING (T2-T5 4) CATEGORY”
“~~T5 697~~”
In GCR, Section 9.1.9. TOURING CATEGORY CLASSES, remove as follows:
“~~Touring 5 (T5) Regional Class~~”
In GCR, Section 9.3.22. FIRE SYSTEM, change as follows:
“All cars shall be equipped with an On-Board Fire System except T3, T4, ~~T5,~~”
In GCR, Section 9.1.9.2 TOURING (T2-T5) CATEGORY header, change as follows:
“TOURING (T2-T5 4) CATEGORY”
In GCR, Section 9.1.9.2 TOURING (T2-T5) CATEGORY, change as follows:
“Touring car eligibility: Cars are eligible for the class they are listed with a specification line and with the specific allowances
permitted. In addition T2-T5 4 cars may race one class up in touring classes above their specification line class as long as they are
a legal T2-T5 4 car and conform to their specification line allowances as classified. ~~T5 is a Regional only class.~~”
In GCR, Section 9.1.9.2.D.1.e.1., change as follows:
“Any overbore up to .020” permitted T2- T5 4with +30 lbs. penalty. Oversize OEM equivalent pistons are required. This allowance
does not apply to any car adhering to spec rules.”
In GCR, Section 9.1.9.2.D.1.i.5., change as follows:
“T2- T5 4 only:”
In GCR, Section 9.1.9.2.D.5.a.1., change as follows:
“T2- T5 4:”
“Spherical bearings/bushings are not permitted in T2- T5 4 except for the specific examples listed in the class rules or vehicle
spec line.”
In GCR, Section 9.1.9.2.D.5.b.2., change as follows:
“T4 ~~and T5 only~~”
In GCR, Section 9.1.9.2.D.5.b.2.c., change as follows:
“T3~~, T4~~ and T5 4:”
In GCR, Section 9.1.9.2.D.5.b.2.d., change as follows:
“T2- T5 4 only:”
In GCR, Section 9.1.9.2.D.7.a.3., remove as follows:
“~~T5 only: (unless specified on spec line) Any aftermarket wheel allowed.~~”
In GCR, Section 9.1.9.2.D.7.b., remove as follows:
“ ~~T5 has a maximum tire width of 225 and a minimum aspect ratio of 45.~~”
In GCR, Section 9.1.9.2.D.10.c., remove as follows:
“All cars shall have, as a minimum, a fire extinguisher meeting the specifications of GCR Section 9.3 Fire System. Touring 2 cars
must have a fire system installed. Touring 3~~,and~~ Touring 4~~, and Touring 5~~”
In GCR, Section 9.1.9.2.E.1., remove as follows:
“Touring Category Classes are as follows: T2, T3~~, T4~~ and T5 4:”
In GCR, Touring Spec Lines, remove 9.1.9.2. T5 Spec Line in it’s entirety.

2023-06-01 B-Spec T5 Mazda 3 Spec Line Addition

#33536 from Morgan Trotter · Rule change · TB 23-06 (2023-06 Fastrack)

Summary

cars addedC-Spec Mazda 3i Touring 2.0 Skyactive MT (12-13) newly classified with 155 hp, 148 lb-ft torque, 2900 lbs.

As printed in Fastrack

In C-Spec Spec Lines, classify Mazda 3i Touring 2.0 Skyactive MT (12-13) as follows:

A specification table follows in the original; it is not shown here.

2023-06-01 B-Spec T5 Ride Height Rules.

#33552 from Michael Ogren · Rule change · TB 23-06 (2023-06 Fastrack)

Summary

suspension & brakesB-Spec minimum ride height set to 6 inches, C-Spec to 5½ inches.

As printed in Fastrack

In B-Spec and C-Spec Categories Specifications, GCR Section 9.1.10.E.15., add the following:
"Ride height: For B-Spec Minimum ride height is six (6) inches, for C-Spec Minimum ride height is five and a half (5½) inches,"

2023-06-01 B-Spec T5 Spring Allowance

#33557 from Mike Ogren · Rule change · TB 23-06 (2023-06 Fastrack)

Summary

suspension & brakesB-Spec springs capped at 500# front and rear; C-Spec at 600# front, 800# rear; both may be strapped to body.

As printed in Fastrack

In B-Spec and C-Spec Categories Specifications, GCR Section 9.1.10.E.36., add the following:
"Suspension: B-SPEC competitors may use the OEM suspension, the specific suspension kit approved on the spec line or any B14
Bilstein shock or strut with no modifications except as required for mounting or to achieve allowed camber. C-Spec competitors
may use the OEM Suspension, the specific suspension kit approved on the spec line or TBD. Any camber plate may be used, but
may not alter caster. Caster shall be within factory specification. Any part required to adapt the B14’s to the car must be
submitted for approval by the CRB and added to the individual spec line. Any spring, including ‘helper’ or ‘tender’ springs, ~~up to~~
~~a maximum spring rate of 500 pounds may be used.~~ for B-Spec the maximum spring rate is 500# front and rear, for C-Spec the
maximum spring rate is 600 pounds front and 800 pounds rear. Spring are allowed to be strapped or zip tied to the body. The

Show 3 more lines

purpose of the strap should be to keep the spring in place when the axle goes into rebound. The strap can serve no other
function. Bump stops may be deleted but cannot be modified or substituted and shall serve no other purpose. Adjustable sway
bar end links may be used on all cars. Sway bars may be disconnected and removed.

2023-06-01 B-Spec T5 Wheel Minimum Weight

#33558 from Mike Ogren · Rule change · TB 23-06 (2023-06 Fastrack)

Summary

tyres & wheelsB-Spec wheels minimum weight set to 13 lbs, C-Spec to 17 lbs.

As printed in Fastrack

In B-Spec and C-Spec Categories Specifications, GCR Section 9.1.10.E.8., add the following:
"Wheels: For B-Spec Required wheel/rim diameter is fifteen inches (15”). Maximum wheel/rim width is seven inches (7”).
Minimum Wheel/rim weight shall be 13 lbs. For C-Spec Required wheel/rim diameter is seventeen inches (17”). Maximum
wheel/rim width is eight inches (8”). Minimum Wheel/rim weight shall be 17 lbs.."

2023-06-01 B-Spec T5 Tire Options

#33641 from Frank Schwartz · Rule change · TB 23-06 (2023-05 Fastrack)

Summary

tyres & wheelsB-Spec adds Hankook 200/580R15 Z217 tire option alongside 205/50R15 C51; C-Spec specifies 225/45R17.

As printed in Fastrack

In B-Spec and C-Spec Categories Specifications, GCR Section 9.1.10.E.7.a., add the following:
"For B-Spec: Tires shall be Hankook 205/50R15 C51 or Hankook 200/580R15 Z217. No mixing of wet and dry
tires on the same car. For C-Spec: Tires shall be 225/45R17. DOT Tires must be run unmodified.

2023-06-01 B-Spec Allow ZZP Sonic Aluminum Radiator 1.68

#33660 from Brandon Vivian · Rule change · TB 23-06 (2023-05 Fastrack)

Summary

fasterB-Spec and C-Spec Chevrolet Sonic allows ZZP aluminum radiator #ZZP-ZZ013; Hatch MT restrictor increases to 34mm.

As printed in Fastrack

In B-Spec Spec Lines, Chevrolet Sonic 4dr Sedan MT (12-19), add to Notes as follows:
"Allow Aluminum Radiator #ZZP-ZZ013."
In B-Spec Spec Lines, Chevrolet Sonic 4dr Sedan AT (12-19), change as follows:
Car: "Chevrolet Sonic 4dr ~~SedanHatch~~ AT (12-19)"
Notes:"Allow Aluminum Radiator #ZZP-ZZ013."
In B-Spec Spec Lines, Chevrolet Sonic 4dr Hatch MT (12-19) , add to Notes as follows:
"6T40e automatic equipped only. 33 34mm flat plate restrictor required. GM suspension kit #23123679 permitted. Allow rear
sway bar ZZ Performance #ZZ-SNCRSB. Allow Aluminum Radiator #ZZP-ZZ013."

2023-06-01 B-Spec Fasteners for Bumper Caps

#33797 from Kent Carter · Rule change · TB 23-06 (2023-05 Fastrack)

Summary

wordingB-Spec and C-Spec bumper caps now allow positive fasteners like machine screws and T-nuts or rivet-nuts; self-drilling and sheet metal screws prohibited.

As printed in Fastrack

In B-Spec and C-Spec Categories Specifications, GCR Section 9.1.10.E., add the following:
"47. Positive fasteners may be used to attach the bumper caps to the OEM bumper cap clips and may include a machine screw
and T-nut or a rivet-nut. Pointed screws such as self-drilling/tapping or sheet metal screws are prohibited."

2023-06-01 B-Spec Allow CAN Bus Connection to Data Systems

#33806 from Kent Carter · Rule change · TB 23-06 (2023-05 Fastrack)

Summary

wordingB-Spec and C-Spec allow CAN bus connections to data systems for monitoring only; systems must not send data.

As printed in Fastrack

In B-Spec and C-Spec Categories Specifications, GCR Section 9.1.10.E.29., change as follows:
"Lap Timing and Data Acquisition Devices that perform no function other than to relay lap times to the driver (Longacre Hot Lap,
Intercomp Lap Timer, etc.) are permitted, along with the required mounting hardware and connections. Stand-alone data
acquisition systems (GPS or accelerometer-based) are allowed~~. One connection from the OBD2 port to the stand-alone data~~
~~acquisition system is permitted. No additional sensors may be added and the data acquisition system must not tie into the~~
~~vehicle electronics in any other manner beyond this allowance.~~ The SCCA may install a standalone data box in a
competitor’s car at any time. Refusal of the installation of the data box will result in disqualification. Analog (needle type) gauges
for oil pressure, oil temp and water temp may be added as long as they are not tied into the vehicles ECU in any way. Stand

Show 4 more lines

alone shift lights may be added.
Connections to the CAN bus are permitted for the purpose of reading CAN data to monitor vehicle and driver performance using
data logging systems, dashboards and indicators. All connected systems must remain 'silent' on the CAN bus: they may receive
data but must not send data on the BUS. GPS-based data acquisition and coaching devices are permitted."

2023-06-01 B-Spec Request Ford Fiesta weight reduction 25lbs

#33890 from Andrew Doyle · Rule change · TB 23-06 (2023-05 Fastrack)

Summary

fasterB-Spec Ford Fiesta 5dr and 4dr lose 25 lbs each, to 2470 lbs minimum weight.

As printed in Fastrack

In B-Spec Spec Lines, Ford Fiesta 5dr Hatchback (11-19), change Weight as follows:
"~~2495~~ 2470"
In B-Spec Spec Lines, Ford Fiesta 4dr Sedan (11-19), change Weight as follows:
"~~2495~~ 2470"

2023-06-01 T4 05-06 Mini Wheel Weight

#34112 from Mav Singh · Rule change · TB 23-06 (2023-05 Fastrack)

Summary

fasterT4 Mini Cooper S all years now run 17-inch wheels, up from 16, with wider rims to 8 inches.

As printed in Fastrack

In T4 Spec Lines, Mini Cooper S (02-04), change as follows:
Wheel Size: "~~16 x 7~~ 17 x 8"
Add to Notes: "Wheels conforming to B-spec rules are permitted."
In T4 Spec Lines, Mini Cooper S (05-06), change as follows:
Wheel Size: "~~16 x 7~~ 17 x 8"
Add to Notes: "Wheels conforming to B-spec rules are permitted."
In T4 Spec Lines, Mini Cooper S (07-13), change as follows:
Wheel Size: "17 x 7 8"

2023-06-01 T4 06-09 VW Rabbit

#34153 from Cameron Conover · Rule change · TB 23-06 (2023-05 Fastrack)

Summary

slowerT4 Volkswagen Rabbit 2.5 (06-09) consolidates 06-07 and 08-09 models; Integrated Engineering intake allowed with 25lb penalty.

As printed in Fastrack

In T4 Spec Lines, delete Volkswagen Rabbit 2.5 (06-07) in its entirety and change Volkswagen Rabbit 2.5 (08-09) as follows:
"Volkswagen Rabbit 2.5 (08 06-09)"
Add to Notes: "Integrated Engineering intake IEIMVB1-BK allowed with 25lb penalty."

2023-06-01 B-Spec Threaded Metal Inserts for Plastic Intake Manifolds

#34164 from Kent Carter · Rule change · TB 23-06 (2023-06 Fastrack)

Summary

wordingB-Spec and C-Spec allow metal threaded inserts in plastic intake manifolds for throttle body fasteners.

As printed in Fastrack

In B-Spec and C-Spec Categories Specifications, GCR Section 9.1.10.E., add the following:
"48. All cars which use throttle body to intake fasteners directly into a plastic intake, are allowed to convert the intakes to
accommodate a metal threaded insert. This is done for the sole reason that repeated removal of the restrictor plate wears the
threads in the intake and eventually causes the need to replace the intake."

2023-06-01 B-Spec BoB Adjustments

#34208 from Club Racing Board · Rule change · TB 23-05 (2023-05 Fastrack)

Summary

unclearB-Spec Ford Fiesta 5dr and 4dr lose 25 lbs each to 2470; Honda Fit MT and CVT lose 50 lbs each to 2525; Mazda2 loses 50 lbs to 2280; Kia Rio restrictor increases from 39 to 41 mm; Mini Cooper variants gain 75 lbs to 2675 with larger restri…

As printed in Fastrack

The popularity of BSPEC has brought heightened attention to the Balance of Performance (BoP). Given the wide diversity of
eligible cars and their designs, driving ability, car preparation/tuning levels, and other variables outside of SCCA’s control, the BoP
in this class has been remarkably close. As compared to IMSA’s job of balancing cars which are all professionally prepared, driven,
and highly instrumented, the job of our advisory committees and CRB is considerably more difficult. There are most certainly
outliers and cars which are superior under certain conditions, but in the absence of BoP regulations which vary from track to track
a perfect balance every weekend is not to be expected. The BoP is set by SCCA for what is perceived to be the ultimate tune and
best driver in a given car across the entire racing season and over as many tracks as can be reasonably sampled. If a car is not
prepared, tuned, and driven to its ultimate capability we cannot expect that it will be on par with cars of other manufacture which

Show 52 more lines

are to such level; the BoP is not a handicap program. And, while the class is named “BSPEC”, it is not a spec class as is FE2 or SRF3.
The more experienced mechanics and drivers will certainly have an advantage over those who only race a few times per season.
Anecdotal observations do not serve the SCCA in working towards a proper BoP, yet that is the type of information most commonly
provided in support of a requested change. Hard data and experience are what drive change to the BoP.
Despite what we believe to be an excellent BoP for this class, there is always room for improvement. The BSPEC Advisory
Committee has recently been charged with the considerable task of classifying cars and refining the technical specifications for
the new T5/CSPEC class and, as a result, does not have sufficient time or resources to address the immediate demands for BoP
adjustments in BSPEC. As a result, veteran CRB members Peter Keane, Tom Start, and Sam Henry have poured through BSPEC
data reports from events over the past eighteen (18) months and have recommended to the CRB the following changes which
were approved during its most recent meeting. These changes will be effective beginning 5/1/2023 for positive adjustments and
6/1/2023 for negative adjustments. Data will be gathered as possible with a focus on continued improvement. Comments and
suggestions regarding same should be forwarded through the official letter system. Your continuing support of BSPEC and SCCA
is greatly appreciated.
In B-SPEC Spec Lines, Ford Fiesta 5dr Hatchback (11-19), change Weight as follows:
“~~2495~~ 2470”
In B-SPEC Spec Lines, Ford Fiesta 4dr Sedan (11-19), change Weight as follows:
“~~2495~~ 2470”
In B-SPEC Spec Lines, Honda Fit MT (15-19), change Weight as follows:
“~~2575~~ 2525”
In B-SPEC Spec Lines, Honda Fit CVT (15-19), change Weight as follows:
“~~2575~~ 2525”
In B-SPEC Spec Lines, Kia Rio 5-door/LX (12-19), change Notes as follows:
“39 41mm flat plate restrictor required.”
In B-SPEC Spec Lines, Mazda2 (10-14), change Weight as follows:
“~~2330~~ 2280”
In B-SPEC Spec Lines, Mini Cooper (R56) MT (07-10), change as follows:
Weight: “(Effective 6/1/2023) ~~2600~~ 2675”
Notes: “(Effective 6/1/2023) 41 44mm FPR required with OE catalyst.”
In B-SPEC Spec Lines, Mini Cooper (R56) AT (07-10), change as follows:
Weight: “(Effective 6/1/2023) ~~2600~~ 2675”
Notes: “(Effective 6/1/2023) 41 44mm FPR required with OE catalyst.”
In B-SPEC Spec Lines, Mini Cooper Clubman (R55) (07 - 10), change as follows:
Weight: “(Effective 6/1/2023) ~~2600~~ 2675”
Notes: “(Effective 6/1/2023) 41 44mm FPR required with OE catalyst.”
In B-SPEC Spec Lines, Mini Cooper (R56LCI) MT (11-13), change as follows:
Weight: “(Effective 6/1/2023) ~~2600~~ 2675”
Notes: “(Effective 6/1/2023) 41 43mm FPR required.”
In B-SPEC Spec Lines, Mini Cooper (R56LCI) AT (11-13), change as follows:
Weight: “(Effective 6/1/2023) ~~2600~~ 2675”
Notes: “(Effective 6/1/2023) 40 43mm FPR required.”
In B-SPEC Spec Lines, Mini Cooper Countryman (R60) (11-16), change as follows:
Weight: “(Effective 6/1/2023) ~~2600~~ 2675”
Notes: “(Effective 6/1/2023) 41 42mm flat plate restrictor required.”
In B-SPEC Spec Lines, Mini Cooper Paceman (R61) (11-16), change as follows:
Weight: “(Effective 6/1/2023) ~~2600~~ 2675”
Notes: “(Effective 6/1/2023) 41 42mm flat plate restrictor required.”
In B-SPEC Spec Lines, Mini Cooper Clubman (R55) (11-15), change as follows:
Weight: “(Effective 6/1/2023) ~~2600~~ 2675”
Notes: “(Effective 6/1/2023) 41 42mm flat plate restrictor required.”
In B-SPEC Spec Lines, Mini Cooper Coupe (R58) (12-15), change as follows:
Weight: “(Effective 6/1/2023) ~~2600~~ 2675”
Notes: “(Effective 6/1/2023) 40 42mm flat plate restrictor required.”

2023-06-01 T4 96-01 Audi a4 2.8 Spring Rate

#34217 from Michael Gordhamer · Rule change · TB 23-06 (2023-05 Fastrack)

Summary

fasterT4 Audi A4 2.8 V6 wheels grow to 17x8, tyres to 245, springs now 800lb with 32mm sway bars.

As printed in Fastrack

In T4 Spec Lines, Audi A4 V-6 (96-01) / Volkswagen Passat 2.8 V6 (96-05), change as follows:
Wheel Size: "~~16 x 7~~ 17 x 8"
Tire Size: "~~225~~ 245"
Notes: "~~The following items must remain stock: shock/struts (including mounts), original wheels, and transmission differential -~~
~~unless specified below.~~ 800lb springs allowed. Front and rear sway bars permitted 32mm max."

2023-07-01 B-Spec Hyundai Accent Restrictor Plate

#34331 from Jose Fabian · Rule change · TB 23-06 (2023-07 Fastrack)

Summary

fasterB-Spec Hyundai Accent GS Hatchback restrictor plate increases from 39mm to 41mm.

As printed in Fastrack

In B-Spec Spec Lines, Hyundai Accent GS Hatchback (13-19), change Notes as follows:
"39 41mm"

2023-07-01 B-Spec Hyundai Accent 2012 Model

#34332 from Jose Fabian · Rule change · TB 23-06 (2023-07 Fastrack)

Summary

wordingB-Spec Hyundai Accent GS Hatchback model years corrected from 13–19 to 12–19.

As printed in Fastrack

In B-Spec Spec Lines, Hyundai Accent GS Hatchback (13-19), change model as follows:
"Hyundai Accent GS Hatchback (13 12 -19)"

2023-07-01 T4 2002-2006 Mini Cooper S R53 Spec Line Request

#34336 from Aaron Fitzsimmons · Rule change · TB 23-06 (2023-07 Fastrack)

Summary

fasterT4 Mini Cooper S R53 loses 50 lbs, to 2700 for both 02-04 and 05-06 model years.

As printed in Fastrack

In T4 Spec Lines, Mini Cooper S (02-04), change Weight as follows:
"~~2750~~ 2700"
In T4 Spec Lines, Mini Cooper S (05-06), change Weight as follows:
"~~2750~~ 2700"

2023-08-01 AS Crate Motor Part Numbers

#32944 from Sam Daniels · Rule change · TB 23-08 (2023-08 Fastrack)

Summary

wordingAS crate motor part number specified: GM Performance CT400 P/N 19370604 engine assembly for GM vehicles.

As printed in Fastrack

In AS, GCR Section 9.1.6.F.2., change as follows:
"GM Performance parts CT400 P/N-1937 → 0604 or 1937 → 0604 engine assembly for GM produced vehicles."

2023-08-01 AS Request wheel size change

#33007 from Michael Kamalian · Rule change · TB 23-08 (2023-08 Fastrack)

Summary

fasterAS Spec Lines Ford Mustang GT 5.0L (15-17) max wheel size increases to 19.0 inches.

As printed in Fastrack

In AS Spec Lines, Ford Mustang GT 5.0l (15-17) Restricted Preparation, change Notes as follows:
"Max. Wheel Size: Dia.~~18.0~~ 19.0 inches."

Applies to Ford Mustang on this page: Michael Kamalian, Thomas J Ellis, Gregory Eaton, James Jost

2023-08-01 AS Alternative Upper Front Control Arms for Dodge Challenger

#33352 from Clark Cambern · Rule change · TB 23-08 (2023-08 Fastrack)

Summary

wordingAS Dodge Challenger 5.7L/6.1L/6.4L V8 now permits SPC-66045 alternate front upper control arms.

As printed in Fastrack

In AS SPEC Lines, Dodge Challenger (08-20) Restricted Preparation 5.7L, 6.1L, or 6.4L V8 (Iron block, Aluminum heads), 2
valves/cylinder, change Notes as follows:
"~~SPC-66045~~ Alternate front upper control arms are permitted."

2023-08-01 AS Front Brake Caliper Adapters for Dodge Challenger

#33353 from Clark Cambern · Rule change · TB 23-08 (2023-08 Fastrack)

Summary

wordingAS Dodge Challenger 5.7L/6.1L/6.4L V8 allows alternate front brake caliper adapters for updated or backdated components.

As printed in Fastrack

In AS SPEC Lines, Dodge Challenger (08-20) Restricted Preparation 5.7L, 6.1L, or 6.4L V8 (Iron block, Aluminum heads), 2
valves/cylinder, change Notes as follows:
"Stock brakes or alternate Dodge brakes (Part numbers: front caliper (0517 → 5106 (R) and 0517 → 5107 (L); rear caliper (R1542564 (R)
and R1542565 (L))) may be used with the brake rotor sizes listed in this specification line. Alternate brackets may be used to
facilitate updated/backdated components."

2023-08-01 T4 Rules Clarification for Mazda RX8 Spec Line

#34395 from Colin Koehler · Rule change · TB 23-08 (2023-08 Fastrack)

Summary

wordingT3 Mazda RX-8 removes transmission/final drive pairing requirement; T4 removes same requirement, adds Mazdaspeed radiator and coil spring kit.

As printed in Fastrack

In T3 Spec Lines, Mazda RX-8 Base/R3/Sport/ GT (04-12), change notes as follows:
"~~Use of 2009 R3 transmission is permitted with alternate gear ratios as listed. R3 transmission must be paired with the listed~~
~~alternate final drive.~~ Front sway bar permitted 32mm MAX rear sway bar 19 MAX, Front springs max 750, 500 rear. Cold air
intake permitted. Header permitted. Aftermarket flywheel and single disc clutch permitted with no weight penalty."
In T4 Spec Lines, Mazda RX-8 Base/R3/Sport/ GT (04-12), change notes as follows:
"Mazdaspeed radiator #0000-01-8501 allowed. ~~Use of 2009 R3 transmission is permitted with alternate gear ratios as listed. R3~~
~~transmission must be paired with the listed alternate final drive.~~ Mazdaspeed coil spring kit #QSEA-34-01Z allowed. 60mm flat
plate restrictor required. OE Rear spoiler allowed #F151-V4-920F. OE front air dam allowed #F151-V4-900f-BB. Springs Allowed:

Show 2 more lines

(F) Mazda Motorsports- 0000- 04-9700-08 or Eibach- 0800.250.0700 (R) Mazda Motorsports- 0000-04-9400-07 or Eibach
0700.250.0400, and helper 0000-04-9926 allowed. Alternate sway bars allowed max 32mm (f) 19mm (r)."

2023-08-01 T4 rule book corrections

#34437 from Chi Ho · Rule change · TB 23-08 (2023-08 Fastrack)

Summary

fasterT3 BMW 320i (14-15) gains aftermarket intercooler permission; T4 loses it.

As printed in Fastrack

In T3 Spec Lines, BMW 320i (14-15), add to Notes the following:
"Aftermarket intercooler permitted."
In T4 Spec Lines, BMW 320i (14-15), remove from Notes the following:
"~~Aftermarket intercooler permitted.~~"

2023-08-01 T4 Ride Height Correction for the T3 Solstice.

#34615 from Joe Aquilante · Rule change · TB 23-08 (2023-08 Fastrack)

Summary

wordingT3 Pontiac Solstice GXP minimum ride height set to 3 inches.

As printed in Fastrack

In T2 Spec Lines, Pontiac Solstice GXP Coupe / Convertible (07-09), add to Notes the following:
"Minimum ride height is 3 inches."
In T3 Spec Lines, Pontiac Solstice GXP Coupe / Convertible (07-09), add to Notes the following:
"Minimum ride height is 3 inches."

2023-09-01 B-Spec Initial car classifications and spec lines

#34461 from Kent Carter · Rule change · TB 23-09 (2023-09 Fastrack)

Summary

cars addedC-Spec adds Chevrolet Cruze, Ford Focus, Honda Civic, Mazda 3i, Toyota Corolla, VW Jetta; updates Dodge Dart, Mazda3s, Toyota Corolla specs.

As printed in Fastrack

In C-Spec Spec Lines, add Chevrolet Cruze (10-16) as follows:

A specification table follows in the original; it is not shown here.

2023-09-01 T4 Inclusion of similar car. (CLK 320)

#34626 from Patrick Morgan · Rule change · TB 23-09 (2023-09 Fastrack)

Summary

cars addedT4 Mercedes Benz CLK 320 Coupe model years expand to 2000-2007, C320 Sedan added.

As printed in Fastrack

In T4 Spec Lines, Mercedes Benz CLK 320 Coupe (2004), change as follows:
"Mercedes Benz CLK 320 Coupe, C320 Sedan (~~2004~~ 2000-2007)

2023-11-01 B-Spec B-Spec Tire

#35034 from Club Racing Board · Rule change · TB 23-11 (2023-11 Fastrack)

Summary

tyres & wheelsB-Spec adds Goodyear Eagle RS dry and wet tires as options alongside Hankook; Hankook restricted to regional events from 2024.

As printed in Fastrack

RM 23-11 In GCR Section 9.1.10.7., change as follows:
"For the remainder of 2023, B-Spec entrants will be allowed to compete on both Hankook and Goodyear Tires. For B-Spec Tires
shall be Hankook 205/50R15 C51, or Hankook 200/580R15 Z217, P205/50ZR15 Goodyear Eagle RS (Dry tire) Catalog #D4850 or
P205/50ZR15 Goodyear Eagle RS-R (Wet tire) Catalog #D4851. For C-Spec: Tires shall be 225/45R17. No mixing of wet and dry
tires on the same car. Tires must be run unmodified. Effective 1-1-2024 Hankook Tires will be allowed at regional events only,
through 6-30-2024."

2023-12-01 B-Spec Mazda 3i 2010-2013 5-Speed Manual Gear Ratios

#34820 from Dean Fehribach · Rule change · TB 23-12 (2023-12 Fastrack)

Summary

unclearC-Spec Mazda 3i 10-13 third gear ratio corrected from 3.84 to 1.84.

As printed in Fastrack

In C-Spec Spec Lines, Mazda 3i (10-13), change Gear Rations as follows:
"3.3, ~~3.84??~~ 1.84,
1.31, 0.97,
0.75”

2023-12-01 B-Spec Error Correction

#34955 from Frank Schwartz · Rule change · TB 23-12 (2023-12 Fastrack)

Summary

wordingC-Spec Dodge Dart 14-16 bore x stroke corrected to 88.0 x 82.0 mm, displacement to 1998 cc.

As printed in Fastrack

In C-Spec Spec Lines, Dodge Dart (14-16), change as follows:
Year: "(1413-16)"
Bore x Stroke(mm)/ Displ. (cc): "88.0 x ~~97.0~~ 82.0
~~2360~~ 1998"

2024-01-01 T4 Mazda MX-5 ND1 Spec Line Request

#34232 from Josh Smith · Rule change · TB 24-01 (2024-01 Fastrack)

Summary

slowerT4 Mazda MX-5 ND1 minimum weight increases 50 lbs to 2700; suspension springs now allow up to 500 lb front, 300 lb rear.

As printed in Fastrack

In T4 Spec Lines, Mazda MX-5 Miata/Club/ RF (16-18), change as follows:
Weight: "~~2650~~ 2700"
Notes: "Factory bolt-in roll bar/ cross member may be removed to facilitate roll cage installation. The following item(s) must
remain stock: transmission differential unless specified below. Retractable hardtop option permitted but must be disabled from
moving action and positively fastened. Any OEM or aftermarket hardtop is permitted that retains the OEM roof silhouette,
including Mazda hardtop part #0000-07-5902-ND and part #0000-07-5901 (discontinued DG Motorsports). 29mm (f) 16mm (r)
sway bars allowed. Suspension package permitted with a 100 lbs. weight increase that includes the following parts: front springs
#0000-04-9700-08, rear springs ~~#0000-04-9400-07, helper springs #0000-04-HLPR-EB (optional).~~ Up to 500lb front and 300lb rear

Show 1 more lines

springs allowed. Mazda Motorsports Header part #0000-06-5410 allowed. Mazda tower brace 0000-04-5626 allowed."

2024-01-01 T4 BRZ/FRS/86 Spring Allowance

#35038 from Luis Goncalves · Rule change · TB 24-01 (2024-01 Fastrack)

Summary

wordingT4 BRZ/FRS/86 spring allowance clarified: 225 lb front and 300 lb rear springs permitted; non-OEM LSD allowed with +50 lbs penalty.

As printed in Fastrack

In T4 Spec Lines, Scion FR-S/10 series (13-16), change Notes as follows:
~~"Eibach 82105.320, 4.10582 and SPC 67660 allowed.~~ Eibach 82105.320 sway bar kit allowed. Eibach 4.10582 springs or 225 lb (f)
and 300 lb (r) springs allowed. SPC 67660 allowed. Front strut tower brace allowed. Raceseng, part # raceseng-ft86-r-shock-top
permitted. Non-OEM limited slip differential allowed with +50 lbs. weight penalty. 55mm flat plate restrictor required. Only 17”
wheels permitted."
In T4 Spec Lines, Subaru BRZ/ BRZ Limited (13-16), change Notes as follows:
"~~Eibach 82105.320, 4.10582 and SPC 67660 allowed.~~ Eibach 82105.320 sway bar kit allowed. Eibach 4.10582 springs or 225 lb (f)
and 300 lb (r) springs allowed. SPC 67660 allowed. Front strut tower brace allowed. Raceseng, part # raceseng-ft86-r-shock-top

Show 12 more lines

permitted. Non-OEM limited slip differential allowed with +50 lbs. weight penalty. 55mm flat plate restrictor required. Only 17”
wheels permitted."
In T4 Spec Lines, Subaru BRZ (17-21), change Notes as follows:
"~~Eibach 82105.320, 4.10582 and SPC 67660 allowed.~~ Eibach 82105.320 sway bar kit allowed. Eibach 4.10582 springs or 225 lb (f)
and 300 lb (r) springs allowed. SPC 67660 allowed. Front strut tower brace allowed. Raceseng, part # raceseng-ft86-r-shock-top
permitted. Non-OEM limited slip differential allowed with +50 lbs. weight penalty. 55mm flat plate restrictor required. Only 17”
wheels permitted."
In T4 Spec Lines, Toyota 86, GT (17-21), change Notes as follows:
"~~Eibach 82105.320, 4.10582 and SPC 67660 allowed.~~ Eibach 82105.320 sway bar kit allowed. Eibach 4.10582 springs or 225 lb (f)
and 300 lb (r) springs allowed. SPC 67660 allowed. Front strut tower brace allowed. Raceseng, part # raceseng-ft86-r-shock-top
permitted. Non-OEM limited slip differential allowed with +50 lbs. weight penalty. 55mm flat plate restrictor required. Only 17”
wheels permitted."

Applies to Subaru BRZ on this page: Angelica Sprehe

2024-01-01 B-Spec B-Spec Hankook Tire for Regionals

#35055 from SCCA Staff · Rule change · TB 24-01 (2024-01 Fastrack)

Summary

tyres & wheelsB-Spec allows Hankook tires at regionals only through 6-30-2024; Goodyear only from 7-1-2024 for all events.

As printed in Fastrack

In GCR, Section 9.1.10.E.7., change as follows:
"a. For the remainder of 2023, B-Spec entrants will be allowed to compete on both Hankook and Goodyear Tires. For B-Spec
Tires shall be Hankook 205/50R15 C51, Hankook 200/580R15 Z217, P205/50ZR15 Goodyear Eagle RS (Dry tire) Catalog #D4850
or P205/50ZR15 Goodyear Eagle RS-R (Wet tire) Catalog #D4851. Effective 1-1-2024 Hankook Tires will be allowed at regional
events only, through 6-30-2024. Effective 7-1-2024 Goodyear is the only legal specified tire allowed in B-spec for all events.
For C-Spec: Tires shall be 225/45R17. No mixing of wet and dry tires on the same car. Tires must be run unmodified. ~~Effective 1-~~
~~1-2024 Hankook Tires will be allowed at regional events only, through 6-30-2024.~~
b. When using the Hankook wet tire, all cars get a 0.2” lower ride height allowance due to smaller radius of the wet tire."

2024-01-01 B-Spec Update 12-19 Nissan Versa Spec Line & Adjust BOP

#35074 from Matt Wolfe · Rule change · TB 24-01 (2024-01 Fastrack)

Summary

fasterB-Spec Nissan Versa Note Hatchback (2013) minimum weight drops 60 lbs to 2490.

As printed in Fastrack

In B-Spec Spec Lines, Nissan Versa (2012), change Model as follows:
"Nissan Versa Sedan (2012-2019)"
In B-Spec Spec Lines, Nissan Versa Note (2013), change as follows:
Model: "Nissan Versa Note Hatchback (2013-2019)"
Min Weight: "~~2550~~ 2490"
In B-Spec Spec Lines, Nissan Versa (2013-), delete Spec Line in its entirety.

Applies to Nissan Versa Note on this page: Richard Osborne

2024-01-01 T4 TSX Allowance

#35219 from Oscar Jackson · Rule change · TB 24-01 (2024-01 Fastrack)

Summary

fasterT4 Acura TSX 2004-2008 now allows header.

As printed in Fastrack

In T4 Spec Lines, Acura TSX (2004-2008), add to Notes the following:
"Header allowed."

2024-01-01 T4 Requested Update of Model Years of 370Z

#35231 from Richard Kulach · Rule change · TB 24-01 (2024-01 Fastrack)

Summary

wordingT3 Nissan 370Z model years expanded to include NISMO Edition through 2022.

As printed in Fastrack

In T3 Spec Lines, Nissan 370Z (09-16) / 370Z NISMO Edition (09-13), change model as follows:
"Nissan 370Z ~~(09-16) / 370Z NISMO Edition (09-13)~~ ,incl. Nismo (2009-2022)"

2024-01-01 B-Spec Clarifying the ECU and Data Acquisition language

#35236 from Kent Carter · Rule change · TB 24-01 (2024-01 Fastrack)

Summary

wordingB-Spec and C-Spec ECU and data acquisition rules clarified: ECU must be unaltered OE, no device capable of altering ECU characteristics permitted; data acquisition expanded to allow tachometer, air-fuel ratio, cylinder head temperature sen…

As printed in Fastrack

In GCR, Section 9.1.10.E.37., change as follows:
"~~ECU/PCM: OEM ECU/PCMs is required. Alternate engine calibrations are allowed. The car may meet federal emission~~
~~standards, but shall provide OBD II compliant data to the data link connector. Manufacturers may provide a stability control~~
~~override procedure or module.~~ ECU/PCM: All electronic control systems (ECU/PCM/ABS, etc) must be unaltered, model-
appropriate US domestic market OE devices unless otherwise permitted on the spec line. Alternate engine calibrations are
allowed but no changes are permitted and no device capable of altering ECU characteristics may be present in the car from the
time the car enters the grid until after impound and any stewards’ actions. OBD II compliant data correct for the car must be
present at the data link connector. Malfunction codes (‘check engine light’) may be present. Manufacturers or competitors may

Show 18 more lines

submit ABS, stability control and speed limiter override procedures or modules for approval and listing on the spec line."
In GCR, Section 9.1.10.E.29., change as follows:
"~~Lap Timing and Data Acquisition Devices that perform no function other than to relay lap times to the driver (Longacre Hot Lap,~~
~~Intercomp Lap Timer, etc.) are permitted, along with the required mounting hardware and connections. Stand-alone data~~
~~acquisition systems (GPS or accelerometer-based) are allowed. The SCCA may install a standalone data box in a competitor’s car~~
~~at any time. Refusal of the installation of the data box will result in disqualification. Analog (needle type) gauges for oil pressure,~~
~~oil temp and water temp may be added as long as they are not tied into the vehicles ECU in any way. Stand alone shift lights may~~
~~be added. Connections to the CAN bus are permitted for the purpose of reading CAN data to monitor vehicle and driver~~
~~performance using data logging systems, dashboards and indicators. All connected systems must remain ‘silent’ on the CAN bus:~~
~~they may receive data but must not send data on the BUS. GPS-based data acquisition and coaching devices are permitted.~~ Data
acquisition systems (GPS or accelerometer-based), lap timers, and coaching systems are allowed. Tachometer, shift lights, oil
pressure and temperature, coolant pressure and temperature, air-fuel ratio, and cylinder head temperature sensors may be
added, integrated into a data acquisition system, and/or displayed to the driver from entry into the grid until the end of impound
and stewards’ actions connections to the CAN bus are permitted only for the purpose of reading CAN data to monitor and display
vehicle and driver performance using data acquisition systems, dashboards and indicators. All connected systems must remain
‘silent’ on the CAN bus: they may receive data but must not be capable of sending or altering data on the bus, nor may they be
capable of changing ECU behavior. Collected data may be displayed to the driver. Devices must be securely mounted. External
devices may not be connected to the car during impound without the permission of a steward or tech official."

2024-02-01 B-Spec Split Spec Line of Automatic and Manual 2nd Gen (09-14) Fit

#35251 from Matt Wolfe · Rule change · TB 24-02 (2024-02 Fastrack)

Summary

wordingB-Spec Honda Fit MT (09-14) and AT now split into separate spec lines with distinct allowances.

As printed in Fastrack

In B-Spec Spec Lines, classify Honda Fit AT (09-14):
"09-14 Honda Fit AT"
Gear Ratios: "2.99, 1.68, 1.07, 0.76, 0.55"
Final Drive: "4.56"
Notes: Allow damper and spring set 51600F23SA100, Damper FR LH 51605F23SA100, Damper FR RH 51606F23SA100,
Damper RR 52610F23SA100, Spring adjust asy RR 52691F23SA010. Seat upper FR spring 51688F23SA200, 51402FC4YA00
front helper spring and 51403FC4YA00 front spacer permitted. Front Damper Mount P/N 51920-F23S-A30 is allowed.
Allow rear sway bar Progress # 62.1061. Allow Setrab 50-119-7612 transmission cooler in addition to OEM. Any

Show 8 more lines

aftermarket exhaust/header allowed. (Effective date 1/1/24) Any Cold Air Intake Package allowed (any manufacturer)
with a 25lb adder.
In B-Spec Spec Lines, Honda Fit MT (09-14) make changes as follows:
~~Or 2.99, 1.68, 1.07, 0.76, 0.55 in automatic~~
~~Or 4.56 in automatic~~
~~"Alternate transmission ratio’s and final drive are for automatic equipped cars only and allow Setrab 50-119-7612~~
~~transmission cooler in addition to OEM. Any aftermarket exhaust/header allowed for the Automatic Transmission Honda~~
~~Fit."~~

2024-02-01 B-Spec Equalize Mazda 2 Headers and clean up spec line

#35259 from Matt Wolfe · Rule change · TB 24-02 (2024-02 Fastrack)

Summary

slowerB-Spec Mazda 2 10-14 weight increases 70 lbs to 2350, cat-delete headers now permitted.

As printed in Fastrack

In B-Spec Spec Lines, Mazda2 (10-14), change as follows:
Weight: "Effective 3-1-2024: ~~2280~~ 2350"
Notes: "Helper springs F&R 0000-04-9926, Spring spacer F&R 0000-04-9925, Front sway bar end links adjstbl 0000-04-
2202, Rear sway bar 0000-04-2203-RR or 0000-04-2312, Modified strut bearing plate 0000-04-2204, Crash bolt set 0000-
04-2205, Allow rear torque bar Corksport #Mz2-3-070. Cold air intake Corksport Mz2-6-117-31100 and air duct Mz2-6-
120-10 are allowed. Effective 3-1-2024: Exhaust Header (cat delete) HB.EM 60-404-S-SS, HP-MZD001, or Mazda
Motorsports PN 0000-06-2410 permitted. Powerflex PFR19-1511BX2 rear suspension bushings allowed. Allow Mazda
part number 0000-01-2501-CR Radiator. Allow Mazda undertray part number DO8C-56- 110A, DO8C-56-311, DO7A-56-

Show 1 more lines

321."

2024-02-01 T4 More Car Lightening Stuff

#35319 from Scotty B White · Rule change · TB 24-02 (2024-02 Fastrack)

Summary

fasterT2, T3, T4 battery replacement wording simplified; OEM weight tolerance requirement removed.

As printed in Fastrack

In GCR, Section 9.1.9.2.D.1.g.3., change as follows:
"Batteries may be replaced provided the replacement is capable of starting the car. Batteries may not be relocated
unless noted on the spec line. Batteries must be adequately secured. Battery labeling must conform to 9.3.35.D. ~~with~~
~~those of an alternate manufacturer, provided they are of similar amp-hour capacity, size and within 10% of OEM~~
~~weight.~~"

2024-02-01 B-Spec Rear Sway Bar Request for Nissan Versa and Versa Note 2013-

#35323 from Richard Osborne · Rule change · TB 24-02 (2024-02 Fastrack)

Summary

suspension & brakesB-Spec Nissan Versa and Versa Note 2013-2019 now permit Hardrace HR-Q0146 19mm rear sway bar.

As printed in Fastrack

In B-Spec Spec Lines, Nissan Versa (2013-), change as follows:
Model: "Nissan Versa (2013-2019)"
Notes: "Hardrace HR-Q0146 19mm rear sway bar permitted."
In B-Spec Spec Lines, Nissan Versa Note (2013-), change as follows:
Model: "Nissan Versa Note (2013-2019)"
Notes: "Hardrace HR-Q0146 19mm rear sway bar permitted."

Applies to Nissan Versa Note on this page: Richard Osborne

2024-02-01 T4 ND Missed Items

#35352 from Touring Committee · Rule change · TB 24-02 (2024-02 Fastrack)

Summary

wordingT4 Mazda MX-5 Miata/Club (16-18) and (19-21) permitted to replace 3rd and 4th gears with specific parts.

As printed in Fastrack

In T4 Spec Lines, Mazda MX-5 Miata/Club (16-18), add to Notes the following:
"3rd and 4th gear may be replaced with the following parts- (0000-02-5803-02, 0000-02-5803-01, 0000-02-5804-
02, 0000-02-5804-01)."
In T4 Spec Lines, Mazda MX5 Miata/Club/ RF (19-21), add to Notes the following:
"3rd and 4th gear may be replaced with the following parts- (0000-02-5803-02, 0000-02-5803-01, 0000-02-5804-
02, 0000-02-5804-01)."

Applies to Mazda Miata on this page: Jonathan Neudorf, Ethan Barker, Charles Habisreutinger, Ayden Rose

Applies to Mazda MX-5 on this page: Marc Cefalo, Robert Spence, Kevin Fryer, Richard Mooney, Sergio Zlobin

2024-02-01 B-Spec Eliminate Redundant Trans Cooler Rule

#35353 from Matt Wolfe · Rule change · TB 24-02 (2024-01 Fastrack)

Summary

wordingB-Spec and C-Spec eliminate case-by-case auxiliary transmission cooler approval requirement.

As printed in Fastrack

In GCR, Section 9.1.10.E.44., eliminate and renumber accordingly:
"~~44. Auxiliary transmission coolers may be approved on a case by case basis. Part numbers must be submitted and~~
~~added to the cars spec line.~~"

2024-02-01 B-Spec Fix Sonic Hatchback MT Spec Line

#35371 from Jonathan Wickert · Rule change · TB 24-02 (2024-01 Fastrack)

Summary

wordingB-Spec Chevrolet Sonic 5dr Hatch MT allows aluminum radiator #ZZP-ZZ013.

As printed in Fastrack

In B-Spec Spec Line, Chevrolet Sonic 5dr Hatch MT (12-19), add to Notes the following:
"Allow Aluminum Radiator #ZZP-ZZ013."

2024-02-01 T4 Inclusion of B-C spec cars in T4

#35374 from Touring Committee · Rule change · TB 24-02 (2024-02 Fastrack)

Summary

cars addedT4 now permits C-Spec cars to compete alongside B-Spec cars.

As printed in Fastrack

In GCR, Section 9.1.9.2., change as follows:
"Touring car eligibility: Cars are eligible for the class they are listed with a specification line and with the specific
allowances permitted. In addition, T2-T4 cars may race one class up in touring classes above their specification line class
as long as they are a legal T2-T4 car and conform to their specification line allowances as classified. Cars conforming to
C-Spec rules are permitted to compete in Touring 4."

2024-02-01 T4 T2-T4 Set expiration dates on spec lines

#35378 from Touring Committee · Rule change · TB 24-02 (2024-02 Fastrack)

Summary

wordingT2-T4 spec lines for 46 cars expire 12/31/24; appeal required to continue.

As printed in Fastrack

In T2-T4 Spec Lines, add **This Spec line will expire 12/31/24, Please submit to appeal**
to Notes to the following Spec Lines:
T2:
Acura TL SHAWD (10-13)
Audi S4 (12-14)
Audi S5 (13-14)
Audi TT RS (2018-)
Cadillac ATS-V (16-17)

Show 46 more lines

Cadillac CTS-V (06-07)
Chevrolet Camaro SS (98-02)
Honda Civic (2017-)
Saturn Sky / Convertible (07-09)
Subaru Impreza WRX STi (03-07)
Subaru Impreza WRX STi (08-11)
T3:
Audi S4 (10-11)
Audi S4 (12-14)
Audi TTS Coupe (10-11)
Cadillac ATS (2015)
Chevrolet Cobalt (05-07)
Dodge SRT-4 (03-05)
Ford Fiesta ST (2014-)
Hyundai Genesis Coupe (2010-)
Hyundai Veloster Turbo (18-21)
Mazda RX-8 Base/R3/Sport/ GT (04-12)
Mini Cooper S (2016-)
Subaru WRX (02-05)
Toyota Camry (11-15)
T4:
Acura Integra GS-R VTEC (3 or 4 door) (94-01)
Audi A4 V-6 (96-01) / Volkswagen Passat 2.8 V6 (96-05)
BMW 320i (14-15)
Chevrolet Cobalt SS, Sport Coupe (06-10)
Chevrolet Sonic RS (2011-)
Chrysler/Dodge Neon ACR SOHC (4 door) (01-02)
Dodge Dart (14-15)
Dodge/Plymouth Neon ACR SOHC/DOHC (2/4 door) (95-99)
Fiat 500 Abarth (12-14)
Ford Focus SVT (02-04)
Ford Focus ZX4 ST (05-06)
Ford Focus (08-11)
Ford Mustang V-6 (01-04)
Honda Accord LX & EX (03-07)
Honda Accord LX-S/EX/EX-L (08-12)
Honda Civic Coupe Si (99-00)
Honda Civic SI (02-03)
Hyundai Elantra GLS (11-12)
Hyundai Tiburon V-6 (03-08)
Hyundai Veloster Turbo/ R-Spec (14-15)
Kia Forte Koup and Sedan LX/EX (10-13)
Kia Forte Koup and Sedan SX (10-13)
Kia Forte Koup (14-15)
Mazda Protégé ES (2000)
Mazda Protégé 5 (02-03)

2024-03-01 AS Request to Classify 1970-1981 Camaro and Firebird in AS

#33659 from Brandon Vivian · Rule change · TB 24-03 (2024-03 Fastrack)

Summary

cars addedChevrolet Camaro, Pontiac Firebird 70-81 Full Prep classified AS at 3400-3600 lbs with 250 lb weight reduction.

As printed in Fastrack

In AS Spec Lines, classify Chevrolet Camaro, Pontiac Firebird (70-81) Full Prep as follows:
AS Wheelbase Gear Ratios
Std. (or Alt.)
Brakes
(Max)
(in/mm)
Weight (lbs) Notes:

A specification table follows in the original; it is not shown here.

Applies to Chevrolet Camaro Z-28 on this page: Phillip Waters

2024-03-01 AS Fuel Cell 12

#34194 from Clark Cambern · Rule change · TB 24-03 (2024-03 Fastrack)

Summary

wordingAS class: multiple cars gain fuel cell placement note allowing 24 inches from standard tank, unrestricted filler location.

As printed in Fastrack

In AS Spec Lines, add to Notes as follows:
Cadillac CTS-V (04-07): “Fuel cells must be located within 24 inches of the standard tank. The 24 inch measurement is taken
from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with installation of a safety fuel cell.”
Chevrolet/Pontiac Camaro & Firebird (93-02): “Fuel cells must be located within 24 inches of the standard tank. The 24 inch
measurement is taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with
installation of a safety fuel cell.”
Chevrolet/Pontiac Camaro & Firebird (93-02): “Fuel cells must be located within 24 inches of the standard tank. The 24
inch measurement is taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with

Show 22 more lines

installation of a safety fuel cell.”
Chevrolet Camaro SS (V8) (10-15): “Fuel cells must be located within 24 inches of the standard tank. The 24 inch
measurement is taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with
installation of a safety fuel cell.”
Chevrolet Camaro (10-15): “Fuel cells must be located within 24 inches of the standard tank. The 24 inch measurement is
taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with installation of a
safety fuel cell.”
Dodge Challenger (08-20): “Fuel cells must be located within 24 inches of the standard tank. The 24 inch measurement is
taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with installation of a
safety fuel cell.”
Ford Mustang GT (05-14): “Fuel cells must be located within 24 inches of the standard tank. The 24 inch measurement is
taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with installation of a
safety fuel cell.”
Ford Mustang Coupe GT (05-14): “Fuel cells must be located within 24 inches of the standard tank. The 24 inch
measurement is taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with
installation of a safety fuel cell.”
Ford Mustang GT 5.0l (15-17): “Fuel cells must be located within 24 inches of the standard tank. The 24 inch measurement
is taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with installation of a
safety fuel cell.”
Ford Mustang GT (05-14): “Fuel cells must be located within 24 inches of the standard tank. The 24 inch measurement is
taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with installation of a
safety fuel cell.”

2024-03-01 T4 Reorganize Spec Lines

#35375 from Touring Committee · Rule change · TB 24-03 (2024-03 Fastrack)

Summary

unclearT2-T4 Spec Lines remove wheelbase requirement, replace with Required Restrictor specification.

As printed in Fastrack

In T2-T4 Spec Lines, change Spec Line as follows:
"~~Wheel- base (mm)~~ Required Restrictor"

2024-03-01 B-Spec BOP Adjustment for Yaris iA, 2020+ Versa, and 07-08 Honda Fit

#35382 from Matt Wolfe · Rule change · TB 24-03 (2024-03 Fastrack)

Summary

fasterB-Spec Honda Fit 07-08 loses 125 lbs to 2400; Versa S 2020+ loses 150 lbs to 2550; Yaris iA 16-20 loses 250 lbs to 2450.

As printed in Fastrack

In B-Spec Spec Lines, Honda Fit (07-08), change as follows:
Min weight: "~~2525~~ 2400"
Notes: "Any Cold Air Intake Package allowed (any manufacturer). This configuration is not currently eligible for Runoffs
competition. This car must compete in three (3) separate Super Tour weekends so that performance data can be collected. In
addition to SCCA data box, OBDII data collected via an AIM or similar device must be submitted."
In B-Spec Spec Lines, Honda Fit (07-08) Automatic, change as follows:
Min weight: "~~2525~~ 2400"
Add to Notes: "Any Cold Air Intake Package allowed (any manufacturer). This configuration is not currently eligible for Runoffs

Show 12 more lines

competition. This car must compete in three (3) separate Super Tour weekends so that performance data can be collected. In
addition to SCCA data box, OBDII data collected via an AIM or similar device must be submitted."
In B-Spec Spec Lines, Nissan Versa S (2020-), change as follows:
Min weight: "~~2700~~ 2550"
Add to Notes: "This configuration is not currently eligible for Runoffs competition. This car must compete in three (3) separate
Super Tour weekends so that performance data can be collected. In addition to SCCA data box, OBDII data collected via an AIM
or similar device must be submitted."
In B-Spec Spec Lines, Toyota/Scion IA Sedan (16-20), change as follows:
Min weight: ~~2700~~ 2450"
Add to Notes: "This configuration is not currently eligible for Runoffs competition. This car must compete in three (3) separate
Super Tour weekends so that performance data can be collected. In addition to SCCA data box, OBDII data collected via an AIM
or similar device must be submitted."

Applies to Honda Fit on this page: Blair Deffenbaugh, Luke Russell, Jason Grant, Eric Yagel, Daniel Wold

Applies to Nissan Versa Note on this page: Richard Osborne

2024-03-01 T4 Allow any 400lb rear spring in the RX8

#35433 from Raymond Blethen · Rule change · TB 24-03 (2024-03 Fastrack)

Summary

suspension & brakesT4 Mazda RX-8 rear spring opens to any 400lb, was specific part numbers only.

As printed in Fastrack

In T4 Spec Lines, Mazda RX-8 Base/R3/Sport/ GT (04-12), change Notes as follows:
"~~Mazda Motorsports- 0000- 04-9700-08 or Eibach- 0800.250.0700 (R) Mazda Motorsports- 0000-04-9400-07 or Eibach~~
~~0700.250.0400, and helper 0000-04-9926 allowed.~~ Springs allowed 700lb (f), 400(r)."

2024-03-01 AS Please Classify the 6th Gen Into AS.

#35448 from Daniel Richardson · Rule change · TB 24-03 (2024-03 Fastrack)

Summary

cars addedChevrolet Camaro 16- Full Prep classified into AS at 3400 lbs with 250 lb weight reduction.

As printed in Fastrack

In AS Spec Lines, classify Chevrolet Camaro (16-) Full Prep as follows:
AS
Wheelbase Gear Ratios
Std. (or Alt.)
Brakes
(Max)
(in/mm)
Weight (lbs) Notes:

Show 4 more lines

Chevrolet
Camaro (16-)
Full Prep
110.6 3.42, 2.28,

A specification table follows in the original; it is not shown here.

Applies to Chevrolet Camaro Z-28 on this page: Phillip Waters

2024-03-01 B-Spec 07-08 Honda Fit Rear Sway Bar part #

#35473 from B-Spec/C-Spec Committee · Rule change · TB 24-03 (2024-03 Fastrack)

Summary

wordingB-Spec Honda Fit 07-08 rear sway bar part number changed to Progress #62.1060.

As printed in Fastrack

In B-Spec Spec Lines, Honda Fit (07-08) Automatic, change Notes as follows:
"Allow rear sway bar Progress # 62.1061 0."
In B-Spec Spec Lines, Honda Fit (07-08), add to Notes the following:
"Allow rear sway bar Progress # 62.1060."

Applies to Honda Fit on this page: Blair Deffenbaugh, Luke Russell, Jason Grant, Eric Yagel, Daniel Wold

2024-03-01 T4 370Z Brake Rotor Size Correction

#35487 from Derek Chan · Rule change · TB 24-03 (2024-03 Fastrack)

Summary

suspension & brakesT2 and T3 Nissan 370Z brake rotors enlarged: front 320x28 to 355x32mm, rear 320x16 to 350x20mm vented.

As printed in Fastrack

In T2 Spec Lines, Nissan 370Z (09-17) / 370Z NISMO Edition (09-17), change Brakes (mm) as follows:
"~~(F)320 x 28 Vented R)320 x 16 Vented :~~ (F) 355x32mm Vented(R) 350x20mm Vented”
In T3 Spec Lines, Nissan 370Z, incl. Nismo (2009-2022), change Brakes (mm) as follows:
"~~(F)320 x 28 Vented (R)320 x 16 Vented :~~ (F) 355x32mm Vented(R) 350x20mm Vented”

2024-03-01 AS spec lines

#35713 from American Sedan Committee · Rule change · TB 24-03 (2024-03 Fastrack)

Summary

cars addedAS adds Ford Mustang GT 05-14 Restricted prep Engine with 62mm FPR, 3400 lbs minimum, 18-inch wheels.

As printed in Fastrack

In AS Spec Lines, classify Ford Mustang GT (05-14) with Restricted prep Engine as follows:
AS
Wheelbase Gear Ratios Std.

A specification table follows in the original; it is not shown here.

Applies to Ford Mustang on this page: Michael Kamalian, Thomas J Ellis, Gregory Eaton, James Jost

Atlanta Region Hoosier SCCA Super Tour @ Michelin Raceway Road Atlanta → Atlanta Region SCCA Hoosier Super Tour @ Michelin Raceway Road Atlanta 2024-03-08 to 2025-03-07

2024-04-01 B-Spec Change restrictor from 30mm to 31mm (2015+ Honda Fit) and add 50#

#34857 from Matt Downing · Rule change · TB 24-04 (2024-04 Fastrack)

Summary

fasterB-Spec Honda Fit MT 2015-19 restrictor increases 30mm to 31mm, weight rises 2525 to 2550 lbs.

As printed in Fastrack

In B-Spec Spec Lines, Honda Fit MT (15-19), change as follows:
Weight: ""~~2525~~ 2550"
Notes: "30 31mm"
In B-Spec Spec Lines, Honda Fit MT (15-19), change as follows:
Weight: ""~~2525~~ 2550"
Notes: "30 31mm"

Applies to Honda Fit on this page: Blair Deffenbaugh, Luke Russell, Jason Grant, Eric Yagel, Daniel Wold

2024-04-01 B-Spec Wheel Offset and Spacer Revision

#35466 from Kent Carter · Rule change · TB 24-04 (2024-04 Fastrack)

Summary

fasterB-Spec and C-Spec now permit wheels of any offset if tire doesn't protrude beyond fender; spacers allowed with differing left-right offsets per axle.

As printed in Fastrack

In GCR, Section 9.1.10.E.8., change as follows:
"Wheels: All wheels shall be one-piece metal castings or metal two piece welded. Wheels of any offset are permitted provided
the tire tread (the portion of the tire that contacts the ground) does not protrude beyond the fender opening when viewed from
the top perpendicular to the ground. Wheel spacers and aftermarket wheel studs/bolts are permitted. Wheel bolts may be
replaced with studs and nuts. Total offset must be the same left to right for an individual axle but may differ from front to rear.
~~For~~ B-Spec Required wheel/rim diameter is fifteen inches (15”). Maximum wheel/rim width is seven inches (7”). Minimum
Wheel/rim weight shall be 13 lbs.
~~For~~ C-Spec Required wheel/ rim diameter is seventeen inches (17”). Maximum wheel/rim width is eight inches (8”). Minimum

Show 3 more lines

Wheel/rim weight shall be 17 lbs. ~~All wheels shall be one-piece metal castings or metal two piece welded. All four wheels must~~
~~be the same dimensional offset. Aftermarket wheel studs and/or wheel bolts are allowed. Wheel bolts may be replaced with~~
~~studs and nuts. Wheel spacers are allowed, the same thickness spacer must be used on all four corners.~~ "

2024-04-01 AS Restricted Prep Aftermarket Parts Request

#35682 from Tom Aquilante · Rule change · TB 24-04 (2024-04 Fastrack)

Summary

wordingAS Camaro/Firebird and GTO LS1 connecting rods approved: Callies CSC6100DS6A2AH, Scat 2-1CR6100-944, GM 12649190.

As printed in Fastrack

In AS Spec Lines, Chevrolet/Pontiac Camaro & Firebird (93-02), add to Notes the following:
"For the LS1connecting rods Callies p/n CSC6100DS6A2AH, Scat rods p/n 2-1CR6100-944, GM performance rods p/n 12649190."
In AS Spec Lines, Pontiac GTO (04-06), add to Notes the following:
"For the LS1connecting rods Callies p/n CSC6100DS6A2AH, Scat rods p/n 2-1CR6100-944, GM performance rods p/n 12649190."

Applies to Chevrolet Camaro Z-28 on this page: Phillip Waters

2024-04-01 B-Spec Set Expiration Date for Unused Spec Lines

#35742 from B-Spec/C-Spec Committee · Rule change · TB 24-04 (2024-04 Fastrack)

Summary

wordingB-Spec Mini Cooper Countryman R60, Paceman R61, and Nissan Versa 1797cc spec lines expire 1/1/2025 unless appealed by 12/1/2024.

As printed in Fastrack

In B-Spec Spec Lines, Mini Cooper Countryman (R60) (11-16), add to Notes the following:
”**This Spec line will expire 1/1/2025 unless an appeal is filed on or before 12/1/2024.**”
In B-Spec Spec Lines, Mini Cooper Paceman (R61) (11-16), add to Notes the following:
”**This Spec line will expire 1/1/2025 unless an appeal is filed on or before 12/1/2024.** ”
In B-Spec Spec Lines, Nissan Versa (07-11) with 1797cc engine, add to Notes the following:
”**This Spec line will expire 1/1/2025 unless an appeal is filed on or before 12/1/2024.** ”

Applies to Mini Cooper on this page: Frank Schwartz, Conner Kelleher, Thomas Pendergrass, C. Lee Davis

Applies to Nissan Versa Note on this page: Richard Osborne

2024-04-01 T4 Corrections to T4 RX8 Spec line

#35767 from Touring Committee · Rule change · TB 24-04 (2024-04 Fastrack)

Summary

wordingT4 Mazda RX-8 allows Mazdaspeed radiator, coil spring kit, OE rear spoiler, front air dam, springs to 700 lb front/400 lb rear, oil metering pump bypass, sway bars to 32 mm front/19 mm rear.

As printed in Fastrack

In T4 Spec Lines, Mazda RX-8 Base/R3/Sport/ GT (04-12), change Notes as follows:
"Mazdaspeed radiator #0000-01-8501 allowed. Mazdaspeed coil spring kit #QSEA-34-01Z allowed. OE Rear spoiler allowed
#F151-V4-920F. OE front air dam allowed #F151-V4-900f-BB. Springs allowed 700lb (f) max, 400(r) max. Oil metering pump may
be bypassed. Alternate sway bars allowed max 32mm (f) 19mm (r)."

2024-04-01 AS Allowance of 11

#35824 from American Sedan Committee · Rule change · TB 24-04 (2024-04 Fastrack)

Summary

fasterAS Cadillac CTS-V, Chevrolet Camaro SS, Dodge Challenger, Ford Mustang GT, Pontiac GTO allowed 11" wheels until 3/1/25.

As printed in Fastrack

In AS Spec Lines, Cadillac CTS-V (04-07), add to Notes the following:
"11" wide wheels can be used until 3/1/25."
In AS Spec Lines, Chevrolet Camaro SS (V8) (10-15), add to Notes the following:
"11" wide wheels can be used until 3/1/25."
In AS Spec Lines, Dodge Challenger (08-20), add to Notes the following:
"11" wide wheels can be used until 3/1/25."
In AS Spec Lines, Ford Mustang GT 5.0l (15-17), add to Notes the following:
"11" wide wheels can be used until 3/1/25."

Show 2 more lines

In AS Spec Lines, Pontiac GTO (04-06), add to Notes the following:
"11" wide wheels can be used until 3/1/25."

Applies to Chevrolet Camaro Z-28 on this page: Phillip Waters

Applies to Ford Mustang on this page: Michael Kamalian, Thomas J Ellis, Gregory Eaton, James Jost

2024-05-01 AS 6th gen Camaro limited prep

#35733 from American Sedan Committee · Rule change · TB 24-05 (2024-05 Fastrack)

Summary

cars addedAS Chevrolet Camaro 1LE (2016-) classified with 3600 lbs minimum weight, 60mm restrictor, 275 tires.

As printed in Fastrack

In AS Spec Lines, classify Chevrolet Camaro 1LE (2016-) as follows:
AS Wheelbase Gear Ratios Std. (or Alt.)
Brakes
(Max)
(in/mm)
Weight (lbs.) Notes:
Chevrolet
Camaro, 1LE

Show 2 more lines

(2016-)
110.6 2.66,1.78,1.30,0.74,.5 (F)

A specification table follows in the original; it is not shown here.

2024-05-01 B-Spec Delete trim levels/update language for spec lines

#35746 from B-Spec/C-Spec Committee · Rule change · TB 24-05 (2024-05 Fastrack)

Summary

wordingB-Spec model descriptions standardized: trim levels and door count designations removed or replaced with body style wording.

As printed in Fastrack

In B-Spec Spec Lines, change Model description as follows:
"Chevrolet Sonic ~~4dr~~ Sedan MT (12-19)"
"Chevrolet Sonic ~~4dr~~ Sedan AT (12-19)"
"Chevrolet Sonic ~~5dr Hatch~~ Hatchback MT (12-19)"
"Chevrolet Sonic ~~5dr Hatch~~ Hatchback AT (12-19)"
"Ford Fiesta ~~5dr~~ Hatchback (11-19)"
"Ford Fiesta ~~4dr~~ Sedan (11-19)"
"Honda Fit MT (07-08)"

Show 7 more lines

"Honda Fit ~~Automatic~~ AT (07-08)"
"Honda Fit MT (09-14)"
"Hyundai Accent GS Hatchback (12-19)"
"Kia Rio ~~5-door/LX~~ Hatchback (12-19)"
"Nissan Versa S (2020-)"
"Toyota Yaris Hatchback (07-11)"
"Toyota Yaris Hatchback (12-18)"

2024-05-01 T4 Allow T4 and T3 RX8 to Disable/Remove Factory Oil Inj.

#35761 from David Mead · Rule change · TB 24-05 (2024-05 Fastrack)

Summary

unclearT3 and T4 Mazda RX-8 may remove or disable factory oil injection system.

As printed in Fastrack

In T3 Spec Lines, Mazda RX-8 Base/R3/Sport/ GT (04-12), add to Notes as follows:
"OEM oil injection system may be removed or disabled."
In T4 Spec Lines, Mazda RX-8 Base/R3/Sport/ GT (04-12), add to Notes as follows:
"OEM oil injection system may be removed or disabled."

2024-05-01 AS Chevrolet/Pontiac Camaro & Firebird (82-92) 5.7L V8 LS1 Alum BLK

#35825 from Desi Colon · Rule change · TB 24-05 (2024-05 Fastrack)

Summary

cars addedAS Chevrolet/Pontiac Camaro & Firebird 82-92 5.7L LS1 classified at 3200 lbs with 65mm restrictor plate required.

As printed in Fastrack

In AS Spec Lines, classify Chevrolet/Pontiac Camaro & Firebird (82-92) 5.7L V-8 LS1 (Aluminum Block, Aluminum Heads) 2 valves
per cylinder, as follows:
AS Wheelbase Gear Ratios Std.

A specification table follows in the original; it is not shown here.

2024-05-01 T4 2023 ND2 Miata Classification and Allowances

#35837 from Coyote Black · Rule change · TB 24-05 (2024-05 Fastrack)

Summary

slowerT4 Mazda MX5 Miata/Club/RF year range extended to 2024, suspension package permitted with 100 lbs weight increase.

As printed in Fastrack

In T4 Spec Lines, Mazda MX5 Miata/Club/ RF (19-21), change Year as follows:
"(19-21 24)"
In T4 Spec Lines, Mazda MX5 Miata/Club/ RF (19-21), add to Notes as follows:
"Suspension package permitted with a 100 lbs. weight increase that includes the following parts: front springs #0000-04-9700-
08, springs up to 500lb front and 300lb rear allowed. Mazda tower brace 0000-04-5626 allowed."

2024-05-01 T4 Errors and Omissions for 06-09 VW Rabbit Rotor

#35851 from Andrew Burke · Rule change · TB 24-05 (2024-05 Fastrack)

Summary

fasterT4 Volkswagen Rabbit 2.5 (06-09) front brakes increase from 228 to 288 vented disc.

As printed in Fastrack

In T4 Spec Lines, Volkswagen Rabbit 2.5 (06-09), change Brakes as follows:
"(F) ~~228~~ 288 Vented Disc (R) 260 Solid Disc"

2024-05-01 AS Full Prep Head

#35891 from American Sedan Committee · Rule change · TB 24-05 (2024-05 Fastrack)

Summary

otherAS Chevrolet Camaro, Firebird, and Ford Mustang models permitted to use Flo Tek cylinder heads.

As printed in Fastrack

In AS Spec Lines, Chevrolet/Pontiac Camaro & Firebird (82-92), add to Notes the following:
"Flo Tek Head part #102-500 are permitted."
In AS Spec Lines, Chevrolet/Pontiac Camaro & Firebird (93-02), add to Notes the following:
"Flo Tek Head part #102-500 are permitted."
In AS Spec Lines, Chevrolet Camaro (10-15), add to Notes the following:
"Flo Tek Head part #102-500 are permitted."
In AS Spec Lines, Ford Mustang Incl. Cobra & Cobra R (79-93) and Mercury Capri (79-86), add to Notes the following:
"Flo Tek Part # 203-500 are permitted."

Show 4 more lines

In AS Spec Lines, Ford Mustang Including Cobra 94-04, add to Notes the following:
"Flo Tek Part # 203-500 are permitted."
In AS Spec Lines, Ford Mustang GT (05-14), add to Notes the following:
"Flo Tek Part # 203-500 are permitted."

Applies to Chevrolet Camaro Z-28 on this page: Phillip Waters

Applies to Ford Mustang on this page: Michael Kamalian, Thomas J Ellis, Gregory Eaton, James Jost

2024-05-01 T4 Driveshafts

#35916 from Scotty B White · Rule change · TB 24-05 (2024-05 Fastrack)

Summary

slowerT2, T3, T4 driveshafts may use alternative materials or one-piece units; non-OEM adds 25 lbs.

As printed in Fastrack

In GCR Section 9.1.9.2.D.4.b., add the following:
"6. T2-T3- Driveshafts may be replaced with alternative materials ie. carbon fiber, aluminum, steel. Two-piece driveshafts may
be replaced with one-piece units. If non-OEM driveshaft is used, add 25 lbs."

2024-05-01 T4 GCR ERROR - letter not properly applied to GCR

#35999 from Touring Committee · Rule change · TB 24-05 (2024-05 Fastrack)

Summary

fasterT4 Mazda MX-5 Miata/Club 16-18 removes differential stock requirement, allows up to 500lb front and 300lb rear springs.

As printed in Fastrack

In T4 Spec Lines, Mazda MX-5 Miata/Club (16-18), change Notes as follows:
"Factory bolt-in roll bar/ cross member may be removed to facilitate roll cage installation. ~~The following item(s) must remain~~
~~stock: transmission differential unless specified below~~. Retractable hardtop option permitted but must be disabled from moving
action and positively fastened. Any OEM or aftermarket hardtop is permitted that retains the OEM roof silhouette, including
Mazda hardtop part #0000-07-5902-ND and part #0000-07-5901 (discontinued DG Motorsports). 29mm (f) 16mm (r) sway bars
allowed. ~~Suspension package permitted with a 100 lbs. weight increase that includes the following parts: front springs #0000-~~
~~04-9700-08, rear springs #0000-04-9400-07, helper springs #0000-04-HLPR-EB (optional)~~. Up to 500lb front and 300lb rear
springs allowed. Mazda Motorsports Header part #0000-06-5410 allowed. Mazda tower brace 0000-04-5626 allowed."

Applies to Mazda Miata on this page: Jonathan Neudorf, Ethan Barker, Charles Habisreutinger, Ayden Rose

Applies to Mazda MX-5 on this page: Marc Cefalo, Robert Spence, Kevin Fryer, Richard Mooney, Sergio Zlobin

2024-05-01 B-Spec Wheel Rules

#36066 from B-Spec/C-Spec Committee · Rule change · TB 24-05 (2024-05 Fastrack)

Summary

wordingB-Spec and C-Spec wheels must be same thickness spacers all four corners; wording clarified on offset and protrusion rules.

As printed in Fastrack

In GCR, Section 9.1.10.E.8., change as follows:
"Wheels: All wheels shall be one-piece metal castings or metal two piece welded. All four wheels must be the same dimensional
offset. Any offset is permitted so long as ~~Wheels of any offset are permitted provided~~ the tire tread (~~the~~ that portion of the tire
that contacts the ground) ~~does~~ may not protrude beyond the fender opening when viewed from the top perpendicular to the
ground. ~~Wheel spacers and aA~~ ftermarket wheel studs/ and or wheel bolts are ~~permitted~~ allowed. Wheel bolts may be replaced
with studs and nuts. Wheel spacers are allowed, but must be the same thickness on all four corners.Total offset must be the
same left to right for an individual axle but may differ from front to rear.
B-Spec Required wheel/rim diameter is fifteen inches (15”). Maximum wheel/rim width is seven inches (7”). Minimum

Show 5 more lines

Wheel/rim weight shall be 13 lbs.
C-Spec Required wheel/rim diameter is seventeen inches (17”). Maximum wheel/rim width is eight inches (8”). Minimum
Wheel/rim weight shall be 17 lbs.
~~Wheels are permitted any offset provided the tire tread (that portion of the tire that contacts the ground) does not protrude~~
~~beyond the fender opening when viewed from the top perpendicular to the ground.~~"

2024-06-01 AS Request for Classification of 2018-2023 mustang In

#35764 from Michael Kamalian · Rule change · TB 24-06 (2024-06 Fastrack)

Summary

cars addedAS Ford Mustang GT 5.0L (2018-) classified at 3600 lbs with 60mm restrictor, Brembo BBK permitted.

As printed in Fastrack

AS Spec Lines, classify Ford Mustang GT 5.0L (2018-) as follows:
AS Wheelbase Gear Ratios

A specification table follows in the original; it is not shown here.

2024-06-01 T4 Allow OEM Front Spoiler 06-08 Miata in T4

#35941 from David Mead · Rule change · TB 24-06 (2024-06 Fastrack)

Summary

fasterT4 Mazda MX-5 Club 06-15 now permits OEM front spoiler NF51-V4-900F.

As printed in Fastrack

In T4 Spec Lines, Mazda MX-5 / Club Model (06-15), add to Notes the following: "Front
spoiler permitted (NF51-V4-900F)."

Applies to Mazda MX-5 on this page: Marc Cefalo, Robert Spence, Kevin Fryer, Richard Mooney, Sergio Zlobin

2024-06-01 B-Spec Add B14 Kit Part # to Sonic Spec line In

#35969 from B-Spec/C-Spec Committee · Rule change · TB 24-06 (2024-06 Fastrack)

Summary

wordingB-Spec and C-Spec Chevrolet Sonic Bilstein B14 kit #47-171725 verified compatible, suspension wording clarified.

As printed in Fastrack

B-Spec Spec Lines, change Notes follows:
Chevrolet Sonic Sedan MT (12-19): "33mm flat plate restrictor required. GM suspension kit #2312 → 3679 permitted. Bilstein B14 kit
#47-171725 verified compatible."
Chevrolet Sonic Sedan AT (12-19): "33mm flat plate restrictor required. GM suspension kit #2312 → 3679 permitted. Bilstein B14 kit
#47-171725 verified compatible."
Chevrolet Sonic Hatchback MT (12-19): "34mm flat plate restrictor required. GM suspension kit #2312 → 3679 permitted. Bilstein
B14 kit #47-171725 verified compatible."
Chevrolet Sonic Hatchback AT (12-19): "34mm flat plate restrictor required. GM suspension kit #2312 → 3679 permitted. Bilstein

Show 1 more lines

B14 kit #47-171725 verified compatible."

2024-06-01 B-Spec Eliminate redundant sway bar end link part #s from notes In

#35970 from B-Spec/C-Spec Committee · Rule change · TB 24-06 (2024-06 Fastrack)

Summary

wordingB-Spec Mazda2 and multiple Mini Cooper models eliminate redundant sway bar end link part number notes.

As printed in Fastrack

B-SPEC Spec Lines, elimination from Notes the following:
Mazda2 (10-14): "~~Front sway bar end links adjstbl 0000-04-2202,~~"
Mini Cooper Hatchback (R50) MT (02 - 06): "F~~ront adjustable sway bar links part number 31 35 6 771 is allowed. Rear adjustable~~
~~sway bar links part number 35 50 6 772 is allowed.~~"
Mini Cooper Hatchback (R50) CVT (02 - 06): "F~~ront adjustable sway bar links part number 31 35 6 771 is allowed. Rear adjustable~~
~~sway bar links part number 35 50 6 772 is allowed.~~"
Mini Cooper (R56) MT (07-10): "F~~ront adjustable sway bar links part number 31 35 6 771 is allowed. Rear adjustable sway bar~~
~~links part number 35 50 6 772 is allowed.~~"

Show 16 more lines

Mini Cooper (R56) AT (07-10): "F~~ront adjustable sway bar links part number 31 35 6 771 is allowed. Rear adjustable sway bar~~
~~links part number 35 50 6 772 is allowed.~~"
Mini Cooper Clubman (R55) (07 - 10): "F~~ront adjustable sway bar links part number 31 35 6 771 is allowed. Rear adjustable sway~~
~~bar links part number 35 50 6 772 is allowed.~~"
Mini Cooper (R56LCI) MT (11-13): "F~~ront adjustable sway bar links part number 31 35 6 771 is allowed. Rear adjustable sway bar~~
~~links part number 35 50 6 772 is allowed.~~"
Mini Cooper (R56LCI) AT (11-13): "F~~ront adjustable sway bar links part number 31 35 6 771 is allowed. Rear adjustable sway bar~~
~~links part number 35 50 6 772 is allowed.~~"
Mini Cooper Countryman (R60) (11-16): "F~~ront adjustable sway bar links part number 31 35 6 771 is allowed. Rear adjustable~~
~~sway bar links part number 35 50 6 772 is allowed.~~"
Mini Cooper Paceman (R61) (11-16): "F~~ront adjustable sway bar links part number 31 35 6 771 is allowed. Rear adjustable sway~~
~~bar links part number 35 50 6 772 is allowed.~~"
Mini Cooper Clubman (R55) (11-15): "F~~ront adjustable sway bar links part number 31 35 6 771 is allowed. Rear adjustable sway~~
~~bar links part number 35 50 6 772 is allowed.~~"
Mini Cooper Coupe (R58) (12-15): "F~~ront adjustable sway bar links part number 31 35 6 771 is allowed. Rear adjustable sway bar~~
~~links part number 35 50 6 772 is allowed.~~"

2024-06-01 B-Spec Update Fiat 500 Spec line In

#35990 from B-Spec/C-Spec Committee · Rule change · TB 24-06 (2024-06 Fastrack)

Summary

wordingB-Spec Fiat 500 spec line changes from model year 2012–15 to 2012–17.

As printed in Fastrack

B-SPEC Spec Lines, Fiat 500 (12-15), change year as follows: "Fiat 500 (12-
15 7)"

2024-06-01 T4 T4 Mustang Weight Reduction In T4 Spec

#36051 from Scotty B White · Rule change · TB 24-06 (2024-06 Fastrack)

Summary

fasterT4 Ford Mustang V6 (05-10) weight reduced 50 lbs to 3225.

As printed in Fastrack

Lines, Ford Mustang V6 (05-10), change as follows:
Weight: "~~3275~~ 3225"
Notes: "14” Brembo Brake Kit#M-2300-S permitted."

2024-06-01 T4 R53 Mini Cooper S spec line request In

#36056 from Manvinder Singh · Rule change · TB 24-06 (2024-06 Fastrack)

Summary

fasterT4 Mini Cooper S 02-04 and 05-06 now allow Milltek exhaust manifold #SSXM459 and 25mm rear sway bar.

As printed in Fastrack

T4 Spec Lines, Mini Cooper S (02-04), add to Notes the following:
"Milltek exhaust manifold #SSXM459 allowed. 25mm rear sway bar allowed."
T4 Spec Lines, Mini Cooper S (05-06), add to Notes the following:
"Milltek exhaust manifold #SSXM459 allowed. 25mm rear sway bar allowed."

2024-06-01 B-Spec Update (15-19) Honda Fit

#36067 from B-Spec/C-Spec Committee · Rule change · TB 24-06 (2024-06 Fastrack)

Summary

slowerB-Spec Honda Fit 15-19 CVT weight increases to 2550 lbs, restrictor to 31mm.

As printed in Fastrack

CVT Spec Line In B-SPEC Spec Lines, Honda Fit CVT (15-19), change as
follows:
Weight: "~~2525~~ 2550"
Notes: "30 31mm"

2024-07-01 T4 Mustang T2/T3

#35877 from Scotty B White · Rule change · TB 24-07 (2024-07 Fastrack)

Summary

unclearFord Mustang GT 5.0L and V6 now permit Track/Performance Package parts in T2 and T3.

As printed in Fastrack

In T2 Spec Lines, Ford Mustang GT 5.0L (15-17), add to Notes as follows:
"Track/Performance Package parts permitted."
In T2 Spec Lines, Ford Mustang GT 5.0L (2018-), add to Notes as follows:
"Track/Performance Package parts permitted."
In T3 Spec Lines, Ford Mustang V6 (15-17), change Notes as follows:
"Track/Performance package allowed."

2024-07-01 T4 Homologation of car to T4

#36030 from Patrick E Morgan · Rule change · TB 24-07 (2024-07 Fastrack)

Summary

cars addedMercedes C300 4Matic 2008-2011 homologated to T4 at 3,725 lbs with 18x8.5 wheels, 245 max tires, 3.27 final drive.

As printed in Fastrack

In T4 Spec Lines, Mercedes C300 4Matic (2008-2011), classify as follows:

A specification table follows in the original; it is not shown here.

2024-07-01 T4 T2-T4 Driveshaft Mistake...?

#36050 from Scotty B White · Rule change · TB 24-07 (2024-07 Fastrack)

Summary

fasterT2-T4 Ford Mustangs: remove 25 lbs penalty for non-OEM driveshaft, clarify alternate driveshaft allowances.

As printed in Fastrack

In GCR Section 9.1.9.2.D.4.b.6., remove as follows:
"~~If non-OEM driveshaft is used, add 25 lbs.~~"
In T2 Spec Lines, Ford Mustang V6 (11-14), change Notes as follows:
"~~Driveshaft from~~ Alternate ~~metallic~~ driveshaft is allowed."
In T2 Spec Lines, Ford Mustang Boss 302 (12-13), change Notes as follows:
"Alternate ~~metallic~~ driveshaft is allowed."
In T2 Spec Lines, Ford Mustang GT 5.0L (11-14)ki, change Notes as follows:
"Alternate ~~metallic~~ driveshaft is allowed."

Show 12 more lines

In T2 Spec Lines, Ford Mustang GT 5.0L (15-17), change Notes as follows:
"Alternate ~~metallic~~ driveshaft is allowed."
In T2 Spec Lines, Ford Mustang GT 5.0L (2018-), change Notes as follows:
"Alternate ~~metallic~~ driveshaft is allowed."
In T2 Spec Lines, Ford Mustang Coupe GT & Shelby GT 4.6L (05-10), change Notes as follows:
'~~An Aluminum driveshaft is allowed.~~"
"~~Alternate metallic driveshaft is allowed.~~"
In T3 Spec Lines, Ford Mustang Coupe GT & Shelby GT 4.6L & Cal. Special (05-10), change Notes as follows:
"~~An Aluminum driveshaft is allowed.~~"
"~~Alternate metallic driveshaft is allowed.~~"
In T3 Spec Lines, Ford Mustang V6 (11-14), change Notes as follows:
"~~Driveshaft from Alternate metallic driveshaft is allowed.~~"

2024-07-01 B-Spec Clean up (15-19) Honda Fit MT & CVT Notes Sections

#36068 from B-Spec/C-Spec Committee · Rule change · TB 24-07 (2024-07 Fastrack)

Summary

wordingB-Spec Honda Fit MT & CVT 15-19: cleaned up allowed parts notes, CVT gains Setrab transmission cooler option.

As printed in Fastrack

In B-Spec Spec Lines, Honda Fit MT (15-19), change notes as follows:
"31mm flat plate restrictor required. Allow damper FR LH 51605F23SA81, Damper FR RH FR RH 51606F23SA81,
Damper RR 52610F23SA80, Spring adjust assy RR 52691F23SA80, ~~Bushing Comp, Damper RR TBD,~~ Camber
Adjuster Comp, Damper 51920F23SA82, ~~Damper wrench kit 89211F23SA80, Hose Set, FR & RR Brake~~
~~01464F23SA810, Pad Set, XR2 D948 54022F27SA81, Disk, FR Brake 45250F23SA80, Air cleaner element assy~~
~~17220FC4YA80, Exhaust pipe assy 18300F23SA81, ACG belt (6PK858) 31110FC4YA80.~~ Allow rear sway bar
Progress 62.1063."
In B-Spec Spec Lines, Honda Fit CVT (15-19), change notes as follows:

Show 6 more lines

"31mm flat plate restrictor required. Allow damper FR LH 51605F23SA81, Damper FR RH FR RH 51606F23SA81,
Damper RR 52610F23SA80, Spring adjust assy RR 52691F23SA80, ~~Bushing Comp, Damper RR TBD,~~ Camber
Adjuster Comp, Damper 51920F23SA82, ~~Damper wrench kit 89211F23SA80, Hose Set, FR & RR Brake~~
~~01464F23SA810, Pad Set, XR2 D948 54022F27SA81, Disk, FR Brake 45250F23SA80, Air cleaner element assy~~
~~17220FC4YA80, Exhaust pipe assy 18300F23SA81, ACG belt (6PK858) 31110FC4YA80.~~ Allow rear sway bar
Progress 62.1063. ~~CVT cars only~~ Allow Setrab 50-119-7612 transmission cooler in addition to OEM."

Applies to Honda Fit on this page: Blair Deffenbaugh, Luke Russell, Jason Grant, Eric Yagel, Daniel Wold

2024-07-01 B-Spec Set expiration date for Nissan Versa (09-11)

#36069 from B-Spec/C-Spec Committee · Rule change · TB 24-07 (2024-07 Fastrack)

Summary

wordingB-Spec Nissan Versa (09-11) spec line expires 1/1/2025 unless appeal filed by 12/1/2024.

As printed in Fastrack

In B-Spec Spec Lines, Nissan Versa (09-11), add to notes the following:
"**This Spec line will expire 1/1/2025 unless an appeal is filed on or before 12/1/2024.**"

Applies to Nissan Versa Note on this page: Richard Osborne

2024-07-01 B-Spec Delete Redundant Rule 25

#36075 from B-Spec/C-Spec Committee · Rule change · TB 24-07 (2024-07 Fastrack)

Summary

wordingB-Spec deletes redundant rule 25 in GCR Section 9.1.10.E.

As printed in Fastrack

In B-Spec, GCR Section 9.1.10.E.25., remove in its entirety and renumber.

2024-07-01 T4 MINI Cooper S Spec Lines Corrections.

#36086 from David Oliveira · Rule change · TB 24-07 (2024-07 Fastrack)

Summary

wordingT4 Mini Cooper S (02-04) deleted; (05-06) model year corrected to R53; (07-13) R56 simplified specs; (2014-2023) added with spring rates.

As printed in Fastrack

In T4 Spec Lines, Mini Cooper S (02-04), delete spec line in its entirety.
In T4 Spec Lines, Mini Cooper S (05-06), change Model as follows:
"Mini Cooper S R53 (0205-06)"
In T4 Spec Lines, Mini Cooper S (07-13), change Model and Notes as follows:
"Mini Cooper S R56 (07-13)"
Notes: "~~The following items must remain stock: shock/struts (including mounts), original wheels, and transmission~~
~~differential - unless specified below.~~ Convertible model not allowed. ~~Factory optional limited slip differential allowed.~~
~~JCW struts (F) 31 31 6 768 410 (R)33 52 6 768 412, springs (F)31 33 6 768 415 (R)33 53 6 768 418. May de-camber~~

Show 8 more lines

~~wheels by the use of slotted adjusters at the top of the strut mounting plates. They shall be located on the existing~~
~~chassis structure, utilizing the manufacturers original bolt holes and may not serve as reinforcement for that~~
~~structure.~~ Any spring up to a maximum spring rate of 500 lbs. front and 800 lbs. rear may be used. Wheels conforming
to B-spec rules are permitted."
In T4 Spec Lines, Mini Cooper S (2016-), change Model and add to Notes as follows:
"Mini Cooper S (2014~~2016~~-2023)"
Notes: "Convertible model not allowed. Any spring up to a maximum spring rate of 500lbs. front and 800lbs. rear may
be used."

2024-07-01 T4 Allow Removal of Sound Tubes

#36130 from Coyote Black · Rule change · TB 24-07 (2024-07 Fastrack)

Summary

fasterT4 OEM intake chambers, resonators and acoustic devices may be removed if ports sealed and before restrictor.

As printed in Fastrack

In GCR Section 9.1.9.2.D.1.b., add the following:
"2. OEM intake- Chambers, resonators and acoustic devices may be removed, provided; that their ports are located
prior to any required restrictor, their ports are completely sealed, and that the part serves no other purpose."

2024-07-01 B-Spec Correct error for rear brakes of Hyundai/Kia

#36174 from B-Spec/C-Spec Committee · Rule change · TB 24-07 (2024-07 Fastrack)

Summary

wordingB-Spec Hyundai Accent rear brakes corrected to 10.3 disc; Kia Rio rear brakes corrected to 10.3 disc.

As printed in Fastrack

In B-Spec Spec Lines, Hyundai Accent Hatchback (12-19), change brakes as follows:
"(R) 9.9 drum or 10.3 ~~drum~~ disc"
In B-Spec Spec Lines, Kia Rio Hatchback (12-19), change brakes as follows:
"(R) 10.3 ~~drum~~ disc"

2024-07-01 T4 B8/8.5 Audi S4 T3 and T2

#36195 from Brian Leib · Rule change · TB 24-07 (2024-07 Fastrack)

Summary

cars addedAudi S4 (2000-2002) moves to T3 with 3400 lbs minimum weight, 38mm turbo inlet restrictor required.

As printed in Fastrack

In T3 Spec Lines, Classify Audi S4 (2000-2002) as follows and allow the T2 spec line to expire.

A specification table follows in the original; it is not shown here.

2024-08-01 B-Spec Update Tire Rules

#35984 from B-Spec/C-Spec Committee · Rule change · TB 24-08 (2024-08 Fastrack)

Summary

tyres & wheelsB-Spec and C-Spec restricted to Goodyear Eagle RS/RS-R P205/50R15 and 225/45R17 tires respectively; Hankook tires removed; wet/dry mixing prohibited.

As printed in Fastrack

In GCR Section 9.1.10.E.7. change as follows:
"~~a. For the remainder of 2023, B-Spec entrants will be allowed to compete on both Hankook and Goodyear Tires. For~~ B-
Spec: tires shall be ~~Hankook 205/50R15 C51, Hankook 200/580R15 Z217,~~ P205/50Z R15 Goodyear Eagle RS (Dry tire) Catalog
#D4850 or P205/50ZR15 Goodyear Eagle RS-R (Wet tire) Catalog #D4851. ~~Effective 1-1-2024 Hankook Tires will be allowed at~~
~~regional events only, through 6-30-2024. Effective 7-1-2024 Goodyear is the only legal specified tire allowed in B-spec for all~~
~~events.~~ Mixing wet and dry tires is not permitted. Tires may not be modified. All B-Spec competitors are required to place two (2)
12-inch or larger “Goodyear” decals on their cars, one on each side of the car above the front tire.
C-Spec: Tires shall be 225/45R17. No Mixing of wet and dry tires ~~on the same car~~ is not permitted. Tires must be run unmodified.

Show 1 more lines

~~b. When using the Hankook wet tire, all cars get a 0.2” lower ride height allowance due to smaller radius of the wet tire.~~"

2024-08-01 B-Spec BOP help for the automatic B-Specs

#36161 from B-Spec/C-Spec Committee · Rule change · TB 24-08 (2024-08 Fastrack)

Summary

fasterB-Spec Sonic restrictors increased to 5-6mm, Fit weight cut 50-25 lbs, Mini Cooper weight reduced 45 lbs, various restrictor adjustments.

As printed in Fastrack

In B-Spec Spec Lines, change as follows:
Chevrolet Sonic Sedan AT
Notes: "33 5mm"
Chevrolet Sonic Hatchback AT
Notes: "34 6mm"
Honda Fit AT (07-08)
Weight (lbs): "~~2400~~ 2350"
Notes: "Any aftermarket header allowed."

Show 11 more lines

Honda Fit AT (09-14)
Weight: "~~2525~~ 2500"
Notes: "Any Cold Air Intake Package allowed (any manufacturer) ~~with a 25lb adder~~."
Honda Fit CVT (15-19)
Notes: "31 3mm"
Mini Cooper Hatchback (R50) CVT (02-06)
Weight (lbs): "~~2545~~ 2500"
Mini Cooper (R56) AT (07-10)
Notes: "44 6mm (OE Catalyst) or 40 2mm (Header)"
Mini Cooper (R56LCI) AT (11-13)
Notes: "43 5mm (OE Catalyst) or 41mm (Header)"

2024-08-01 T4 T4 Camaro V6 weight reduction

#36232 from Ted Warning · Rule change · TB 24-08 (2024-08 Fastrack)

Summary

fasterT4 Chevrolet Camaro V-6 (96-02) weight reduced from 3250 lbs to 3150 lbs.

As printed in Fastrack

In T4 Spec Lines, Chevrolet Camaro V-6 (96-02), change weight as follows:
~~"3250~~ 3150"

2024-08-01 B-Spec Require hood pins

#36233 from Frank Schwartz · Rule change · TB 24-08 (2024-08 Fastrack)

Summary

wordingB-Spec and C-Spec hood pins change from optional to recommended; factory release cable may be removed if pins used.

As printed in Fastrack

In GCR, Section 9.1.10.E.41., change as follows:
"~~Optional Hood Pins may be added to supplement the original hood latch system. All parts of the original hood latch system~~
~~must remain in the car.~~ Installation of hood pins is recommended but not required. If hood pins are used, the factory release and
cable must be removed, but the secondary latch may be retained. Vehicles equipped with plastic release cables may replace them
with steel units. The OEM hood release latch may be relocated."

2024-08-01 B-Spec Sonic Caliper Pistons

#36238 from Jonathan Wickert · Rule change · TB 24-08 (2024-08 Fastrack)

Summary

wordingB-Spec and C-Spec Chevrolet Sonic and Cruze allow Babyface Fabrication brake caliper pistons.

As printed in Fastrack

In B-Spec Spec Lines, change Chevrolet Sonic Sedan MT (12-19), add to Notes the following:
"Allow Babyface Fabrication brake caliper piston SNC-SS."
In B-Spec Spec Lines, change Chevrolet Sonic Sedan AT (12-19), add to Notes the following:
"Allow Babyface Fabrication brake caliper piston SNC-SS."
In B-Spec Spec Lines, change Chevrolet Sonic Hatchback MT (12-19), add to Notes the following:
"Allow Babyface Fabrication brake caliper piston SNC-SS."
In B-Spec Spec Lines, change Chevrolet Sonic Hatchback AT (12-19), add to Notes the following:
"Allow Babyface Fabrication brake caliper piston SNC-SS."

Show 2 more lines

In C-Spec Spec Lines, change Chevrolet Cruze (2010-16), add to Notes the following:
"Allow Babyface Fabrication brake caliper piston CRZ-SS."

2024-08-01 T4 BOP adjustment for ND MX5s

#36345 from Touring Committee · Rule change · TB 24-08 (2024-08 Fastrack)

Summary

fasterT4 Mazda MX-5 Miata/Club 16-18 drops 50 lbs to 2650; 19-24 RF drops 50 lbs to 2750.

As printed in Fastrack

In T4 Spec Lines, change Weight (lbs) as follows:
Mazda MX-5 Miata/Club (16-18): "~~2700~~ 2650"
Mazda MX5 Miata/Club/ RF (19-24): "~~2800~~ 2750"

2024-09-01 SM SMX Camera Rule Correction

#36496 from Paul Gauzens · Rule change · TB 24-09 (2024-09 Fastrack)

Summary

wordingSMX Spec MX-5 camera requirement wording changed; non-functioning recorder now grounds for penalty or disqualification.

As printed in Fastrack

In GCR, Section 9.1.7.1.D.21., change as follows:
"Cars running in Spec MX-5 must have a functioning video recorder/camera during all qualifying and race sessions as described
in 9.3.11. Upon request by an SCCA official, competitors must provide their video recording/data, which may be used by the
SCCA for any purpose including but not limited to rule enforcement and marketing. Failure to comply with a video request from
an official, or having a non-functioning video recorder/camera ~~may~~ will be grounds for penalty or disqualification."

2024-09-01 SM Committee) AIM ECU Protocol

#36556 from Spec Mazda (SM/SMX · Rule change · TB 24-09 (2024-09 Fastrack)

Summary

wordingSMX Spec MX-5 must run latest AIM Data Logger Spec MX-5 ECU Protocol; wording clarification for technical compliance.

As printed in Fastrack

In GCR, Section 9.1.7.1.D.20., add the following:
“e. All cars must run the latest AIM Data Logger Spec MX-5 ECU Protocol.”
These specifications are part of the SCCA GCR and all automobiles shall conform to GCR Section 9.
A. PURPOSE AND
INTENT
Spec MX-5 (SMX) is based on four pillars: affordability, reliability, tech-ability, and fun to drive, the (SMX) Spec MX-5 car
provides the membership with the opportunity to compete in similarly prepared, low cost, 2006-2015 production-based MX-
5 car with limited modifications, intended to help deliver the most fair and competitive racing competition in SCCA Road

Show 660 more lines

Racing
B. CLASSIFIED CARS
AND WEIGHTS
2006-2015 production-based MX-5
Cars are to be weighed with the driver and required ballast.
C. AUTHORIZED
MODIFICATIONS
Only the left-hand drive, North American-version of the 2006-2015 Mazda MX-5 convertible & power retractable hardtop
(PRHT) are eligible. The original OE vehicle identification number (VIN) stamped on the firewall must correspond with the
model year automobile as classified. VIN plates or stampings must remain in place, with the firewall VIN taking precedence.
A Mazda Factory Shop Manual for the specific make, model, and year of automobile is required to be in the possession
of each entrant. The manual may be in the form of printed material, microfiche, CDs, DVDs, and/ or Internet access to
manufacturer sponsored web-based databases that is readily accessible at time of inspection. The manual is intended to
aid scrutineers in identifying parts and the configuration of the automobile.
The items outlined in this VTS document represent the only modifications and safety items permitted and/or required on
Spec MX-5 vehicles other than safety items as required in SCCA’s current GCR Section
9. Parts and components may not perform an unauthorized function (i.e. Modifications must be stated as authorized or
cannot be done).
If the Mazda Factory Manual or these rules provide only a partial specification or no specification at all, the Mazda parts may
not be modified beyond what is permitted in these rules. Compliance will be determined by comparison to new or like parts
and/or the parts compliance measurement listing delivered by Mazda. Other approved parts with only a partial specification
or no specification available in these rules may not be modified.
Assembly, rebuild, and refurbishment procedures, and all associated dimensions must adhere to the published factory
service procedures, except as otherwise stated in these rules. No components may be added or omitted from those
specified by the published factory service procedures. All components must be comply with stated standard dimensions.
It is permitted to use industry standard procedures to repair damaged components.
The use of any painting, coating, plating, metal treatment process or impregnating substance (e.g., anti- friction, thermal
barrier, oil shedding coatings, chrome, anodizing, REM, isotropic finishing, etc.) to any internal engine surface, internal
axle components, internal transmission or differential surface, internal or external surfaces of the intake manifold, exhaust
manifold or down tube, is prohibited.
D. VEHICLE
TECHNICAL
SPECIFICATIONS
(VTS)
1. Vehicle Weight
a. The minimum vehicle weight with driver is 2,525.0 lb.
2. Ballast
If ballast is required to meet the required minimum weight, it must be added as follows:
a. A ballast base plate must be securely mounted using the factory OE passenger seat mounting bolt holes and bolts. Any number
of additional segments of ballast may be attached to the base plate.
b. Each segment of ballast must be fastened to the base plate with a minimum of two (2) one-half (1/2) inch bolts/studs and
positive lock nuts of SAE Grade 5/ Metric 8.8 or better and must utilize large diameter, load distributing washers. In lieu of
positive lock nuts it is permitted to positively thread the additional segments of weight into the base plate.
c. Holes are not permitted to be drilled in the floor pan to mount ballast.
3. Chassis
a. Towing eyes per SCCA’s current GCR Section 9.3 are required. There must be an arrow that strongly contrasts with the vehicle
paint scheme pointing to each tow eyestrap.
9.1.7.1 SPEC MX-5 (SMX)
b. All cars must use the front subframe PT# - NE51-34-800C
c. All cars must use the rear subframe PT# - NE51-28-800B.
d. OE strut tower brace is required; it is comprised of three (3) components; see Table 1 for part numbers.
e. An engine to fender brace located on the passenger side of the engine bay may be used if mounted in such a way that it does not foul brake
lines, fuel lines, or other systems that would interfere with the safe operation of the vehicle under race conditions – see Table 1 for allowed
modifications. (Mazda Motorsports PT# 0000-07-5600)
f. Disabling or removing of the door locking mechanism must be performed.
g. To facilitate frequent lifting of the vehicle, a 3/4” boxed tube not to exceed 12” long may be added under the rocker panel inboard of
the factory pinch weld flange on each side of the vehicle.
h. Convertible tops/power retractable hard tops (PRHT) and attaching hardware must be completely removed.
i. All chassis, structural, and electrical repairs, if performed, must be in conformity with factory procedures, specifications, and dimensions.
Unless specifically authorized by the manufacturer for repair or permitted by these rules, no reinforcement (e.g., seam welding, material
addition, etc.) is permitted.
j. Removal of excess wiring is permitted provided it serves no other purpose and does not splice or interrupt the OE harnesses. Removal of the
following systems is permitted: audio equip- ment; power seats; airbag/supplemental restraint systems components; heated seats; interior
lighting; power windows; and power door locks. (No additional wiring may be added except as permitted in other sections - e.g., Section 16:
Electrical Equipment.)
Table 1: Strut Tower Brace Parts
Description Mazda Part #
Right Side of Strut Tower
Brace
NE57-56-48X
Left Side of Strut Tower
Brace
NE57-56-49X
Center Section of Strut
Tower Brace
NE57-56-48ZA
k. A hole is permitted to be drilled in part #’s NE57-56-48X and NE57-56-49X to allow for access to the shock adjuster screw is permitted (it is
recommended that the hole not be larger than 15mm); NE57-56-48X may be modified in order to allow room for the engine passenger side
engine brace; no other modifications or other braces are permitted.
l. MX-5 donor chassis with originally equipped with 16” OE wheels require installation of
OE strut tower brace (part # NE57-56-35XA).
m. To facilitate engine bay air flow for cooling purposes it is permitted to remove the section outlined below in red from OE PT# NE57-56-
35XA. Block-off plates must be installed at the fresh air vent for the HVAC module at the firewall under the cowl to isolate driver
compart- ment from engine compartment.
(FIREWALL BLOCKOFF PLATE 0000-07-5832) No additional modifications are permitted.
4. Body
a. Interior and exterior door handles are required to remain operable. Alternate interior door handles or cord/strap are permitted.
b. The driver’s and passenger’s side inner door structural panel may be removed to fit the cage.
c. The stock side impact/anti-intrusion beam must not be modified or removed.
d. Door locking mechanisms must be disabled or removed.
e. A minimum of two (2) of the brake lights must be in working order per the current GCR Section 9.1.
f. The two (2) OE unmodified, external mirrors for the correct the Mazda MX-5 (left and right) are required; they must be
mounted in stock location and may not be modified.
g. OE interior rearview mirror or an aftermarket rearview mirror must be used.
h. 2006-2015 MX-5 bodywork may be updated or backdated, OE body parts only. (This includes Mazda OE accessory body
parts such as trunk lid spoiler, side skirts, front air dam.)
i. Mazda Motorsports’ fiberglass headlamp replacements may be used; (See table 2)
no modifications or substitutions are permitted; exceptions: painting, covering, and wrapping.
Table 2: Headlamp Replacement Covers
Model Year Mazda Part # Description
2006-2008 0000-07-5818-LT Left Side
2006-2008 0000-07-5818-RT Right Side
2009-2015 0000-07-5819-LT Left Side
2009-2015 0000-07-5819-RT Right Side
j. Lexan windshield may be used in place of the stock windshield. (Mazda Motorsports PT# -
0000-07-5101-5S)
k. Windshield clips per current GCR Section 9.3 windshield clips are recommended.
l. Hood and trunk pins or clips are permitted. Factory hood and trunk latches must remain intact and operational and may not be
removed, disabled or altered.
m. Front under hood weather strip must remain intact PT#- NE51-56-750
n. Rear under hood weather strip must remain intact PT#- NE51-56-760
o. Modification of release cables is permitted to facilitate external pull/opening straps/pulls/cords.
p. A radiator screen of 0.125” minimum stainless-steel mesh may be added in front of the radiator.
1. The screen must be a single layer and must be installed to the bumper cover and or grill and be contained entirely within the
bodywork of the vehicle.
2. Tape may be applied to the mesh screen.
3. The OE grill must remain intact.
q. It is allowed to apply roll bar padding to the crash support bar (52-070) located behind the front bumper to prevent damage to the
bumper.
r. Front and rear fender lips may be rolled to prevent tire damage.
s. Front OE fender liners must be intact and unmodified, except for what is allowed in section 13. J regarding brake ducts.
Repairs due to on-track damage is allowed so long as it serves no other purpose.
t. OE fog lights lens/glass must be removed. This will allow for the installation of brake duct kit (Mazda Motorsports’ part # 0000-03-
5301-NC.) The remaining opening from the fog light lens must either be blocked, or a connection must be made from the fog lamp
opening/hole in the bumper fascia to a brake duct attached to the hub.
u. Side marker lenses may be removed, and holes may be covered.
v. OE hard top or the unmodified Mazda Motorsports hard top (part # 0000-07-5901-CC)
are permitted.
w. PRHT chassis cars must trim the finish panel with the 3rd brake light to fit one of the approved hard tops.
1. Hhardtops may be painted or wrapped.
2. OE hard top latches must be removed and replaced with positive fasteners.
3. The front of the hard top may attach to the upper windshield bar of the roll cage.
4. It is permitted to run one single piece of racer tape to cover the leading edge of the after- market hard top where it meets
the factory windshield frame.
5. Openings beneath the hard top seal to the body are not permitted. The hard top must be securely mounted to the body of the vehicle
and perform no other purpose.
6. Body repair must be performed to maintain stock body contours, lips, profiles, etc. body repair modification must not increase clearance.
x. To improve driver’s exit through the window area, the driver and passenger vent window and vent window supporting frame may be removed
as an assembly.
1. Vent windows may be modified to accept fresh air ducting.
y. OE radio antennas may be removed. Antennas for two-way radios may be added.
z. Insulation & undercoating may be removed.
aa. All cars must run with both the front door windows fully open (i.e. fully down).
5. Cockpit /
Trunk
a. All interior trim components such as carpets, seats, cargo bins, seat belts, floor mat, firewall insu- lation/blanket, sound deadener patches,
undercoating, radio systems, speakers, dome lights, grab handles, sun visors and their insulating and attaching materials, must be removed.
Other than to provide for the installation of required safety equipment or other authorized modifications, no other driver/passenger
compartment alterations or gutting are permitted.
b. It is permitted to install a radio replacement panel.
c. The outer edges of the dashboard may be cut the minimum amount required to install the roll cage.
d. Air bag systems must be disarmed and must be removed.
e. It is permitted to remove all components of the cruise control system.
f. The top portion of the door panels containing the door latch release handle must remain intact.
g. The lower portion of the door panels must be removed for installation of the roll cage. Gutting of the door may not go outside of the factory
seal.
h. The door window glass and window operating mechanisms must be removed.
i. The OE dashboard and its attaching hardware and brackets must be retained.
j. For installation of required safety equipment, however, it is permitted to modify the OE dash bar, so long as it is outboard of the first dash support
brackets (illustration below). Modification of the first dash support brackets, nor inboard from them, is not permitted. The OE dash bar must be
securely mounted.
k. The HVAC control module located under the dash may be removed together with the following: blower motor, evaporator core,
heater core and associated ducting. Once removed it is permitted to block the blower inlet passage on the firewall.
l. All openings between the driver/passenger compartment and the trunk / gas tank area that include the filler tube & fuel tank vent
must be filled completely with a metal bulkhead that is securely mounted (E.G. nuts/bolts, nut-serts, rivets). This shall close the
entire trunk from the driver/ passenger compartment and comply with current GCR Section 9.3.
m. Mazda Motorsports’ finish panel trim kit (part # 0000-07-5822) may be used to create the required bulkhead above
n. It is permitted to remove the driver’s side factory seat mounts, but not the floor pan.
o. It is permitted to remove the horn and all associated horn related components.
p. OE driver’s seat must be replaced with a one-piece bucket-type race seat per current GCR Section 9.3.
q. The passenger seat must be removed.
r. Any steering wheel except wood rimmed types may be used.
s. Any shift knob may be used.
t. The air conditioning equipment located in the engine compartment (AC compressor assembly, associated lines/dryer and the
condenser) must be removed.
u. Alternate gauges and instruments may be added. The original instrument cluster must remain connected and functional However,
it may be relocated to allow the mounting of an aftermarket dash such as an AiM. The wiring to relocate the dash may not be cut or
extended, it may only be re-routed. The remainder of the dashboard or panel must remain intact.
v. Modifications may be made to the foot pedals to improve the comfort and accessibility to the driver; relocation of mounting
points is not permitted.
1. Dead pedal/footrest and heel stop may be added.
w. Instrument clusters must be unmodified OE parts .
x. Two-way radios may be used.
y. Alternate means of windshield defrosting is permitted
6. Engine
Modifications
6.1. General
a. No modifications to the engine are permitted, except where specifically authorized within these rules. This includes but is not
limited to: all fuel injection and engine management components, as well as electrical, cooling, and lubrication systems.
b. All systems, unless otherwise stated, are subject to test procedures and must conform to OE
specifications as stated in the Mazda Factory Service Manual.
c. Permitted engine maintenance includes the replacement, but not modification, of external engine and engine systems parts.
1. No balancing, blue printing, lightening, polishing or other modification of moving parts of the engine is permitted.
2. All parts in the engine must be OE parts unless specified in this rule set.
3. For all Mazda part numbers in these specifications, superseding part numbers are consid- ered equivalent.
d. Compression ratio for 2.0L engines must be 11.00:1; calculated using the official Spec MX-5 calculator.
6.2. Engine Block
a. The engine block may be decked or milled to achieve the class specified compression ratio. Honing of cylinders is permitted to accommodate
piston clearance so long as a maximum standard diameter is not exceeded shown in Table 3.
b. The cylinders may be bored to accommodate piston clearance requirements so long as maximum permitted overbore diameter is not exceeded
shown in Table 3 below.
Table 3: Piston Sizes
Piston Part # Bore Diameter Max
Standard 0000-01-5310 87.6046mm (3.449”)
Allowed Overbore (.020) 0000-01-5310-OS 88.1126mm (3.469”)
c. It is not permitted to overbore a single cylinder; all cylinders must be bored equally.
d. Sleeving of cylinders is not permitted.
6.3. Crankshaft
a. OE Mazda MZR 2.0L (2009-2015) manual transmission crankshaft (part # LF9G-11-301) must be used with no modifications except for
machining or polishing polishing and/or machining of the bearing surfaces to allow the use of main and rod bearings as permitted
in Table 4 below.
Table 4: Crankshaft Measurements
easurement iameter Diameter
b. OE crankshaft (Mazda part # LF9G-11-301) must weigh a minimum of 31.75lb.
c. Maximum permitted stroke is as follows: 3.27” / 83.1mm
d. Shot peening is prohibited.
e. Bearings
1. Main and rod bearings must not be modified; coatings are not permitted.
2. OE bearings are permitted.
3. The only bearing sizes permitted other than OE are listed in see Table 5.
Sizes
Bearing Type Minimum Bearing
Width Minimum Bearing
Thickness Minimum Bearing
Weight Part #
Main Bearings
(Standard H) .630” 0.097” N/A 0000-01-5215-MB
Main Bearing
(Standard HX) .630” 0.097” N/A 0000-01-5216-MB
Rod Bearings
(Standard H) .630” 0.057” 28g 0000-01-5213-RB
Rod Bearing
(Standard HX) .630” 0.057” 28g 0000-01-5214-RB
f. The crank trigger must not be modified; it must be installed per the Mazda Factory Service Manual.
g. OE crank pulley/balancer (Mazda part # LF94-11-400) must not be modified and must be installed per the Mazda Factory Service Manual.
h. Knife edging of the crankshaft is not permitted.
i. Modifications to the crankshaft counterweights are not permitted.
j. Coatings, REM or metal treatments of any kind are not permitted.
k. Alternate shifter bushing located at the bottom of the shift lever is allowed.
6.4. Connecting Rods
a. OE Mazda MX-5 (2009-2015) manual transmission unmodified connecting rods (part # LF9G- 11-210) must be used. Connecting
rod weight with cap and bolts must not be less than 530 grams.
6.5. Pistons
a. Mazda Motorsports’ competition pistons (standard bore part # 0000-01-5310; oversized part # 0000-01-5310 OS) are required;
no modification is permitted.
b. The minimum weight of the piston, less wrist pin and hardware, must not be lighter than 290 grams.
c. Mazda Motorsports’ competition wrist pin (part # 0000-01-5310-PN) must be used.
d. The minimum weight of the wrist pin must not be lighter than 80 grams.
e. Modification of the piston ring end gap width is permitted.
6.6. Cylinder Head
a. Mazda Motorsports’ competition cylinder head (part # 0000-01-5300) must be used; no modi- fications to the cylinder head are
permitted outside of the gasket face surface outlined below in Table 6.
b. Intake runner CC volume is 182cc +/- 1cc.
c. Exhaust runner CC volume is 114cc +/- 1cc.
d. Combustion chamber volume may not be below 41cc.
e. The gasket face of the cylinder head may be resurfaced provided the maximum allowed compression ratio is not
exceeded.
I. Surfacing of the head gasket surfaced must be in a flat plane.
II. Cylinder head gasket surface distortion may not exceed .010mm or 0.004”.
f. The minimum height of the cylinder head as measured must be at least (TBA)
g. The following head gaskets in Table 6 below are permitted; no other gaskets may be used.
Table 6: Head Gasket Measurements
Description Thickness Mazda Part #
OE Gasket 0.017” approximate crush
depth L3G2-10-271A
Competition
Gasket 0.55mm (0.021”) 0000-01-5319-21
Competition
Gasket 0.75mm (0.030”) 0000-01-5319-30
Competition
Gasket 1.0mm (0.040”) 0000-01-5319-40
Competition
Gasket 1.3mm (0.051”) 0000-01-5319-51
6.7. Camshaft and Camshaft Timing
a. Camshafts must not be modified; see Table 7 for OE camshaft part numbers.
Table 7: Camshaft part numbers
Description Mazda Part #
Intake Cam L3E3-12-420
Exhaust Cam L309-12-441B
b. Camshaft and crankshaft sprockets must not be modified; see Table 8 for part numbers.
shaft Sprocket Part #s
t #
4X0C
425
c. Cam timing must not be altered; chain must be installed as stated in the Mazda Factory Service Manual.
d. OE timing chain (Mazda part # LF7A-12-201) is required; no modification is permitted.
e. OE timing chain components must be used; see Table 9 for Mazda part numbers.
Table 9: Timing Chain Guide Part #s
Description Mazda Part #
Fixed Guide LF01-12-614
Tensioner Guide LF01-12-671
6.8. Valves
a. OE valves must not be modified (including reshaping); see Table 10 for Mazda part numbers.
le 10: Valve Part #s
b. Valve location or angle must not be moved.
c. Valve guides may not be replaced.
d. Valve job measurements must be as follows:
1. Intake 35 top 45 seat 65 bottom 77 bottom seating angle width is 1.0mm
2. Exhaust 40 top 45 seating to radius seating angle width 1.2 mm.
3. Valve stem installed height must be per the Mazda Factory Service Manual.
4. Valve stem seals must be OE.
6.9. Valve Springs
a. Mazda Motorsports’ competition valve springs (part # 0000-01-5319-SP) are required.
6.10. Intake Manifold
a. OE intake manifold (Mazda part # LF9G-13-130B) is required; no modification is permitted (e.g., no material may be added or removed; no
painting or coating on the exterior or interior permitted).
b. All air entering the engine must pass through the throttle body and metered by the mass airflow sensor.
c. Removal of these factory EGR components is permitted: Valve, crossover pipe, coolant lines (EGR DELETE KIT 0000-06-5447)
d. If factory EGR components are removed, the following ports must be blocked:
1. Intake manifold cross over pipe port.
2. Cylinder head cross over pipe port.
3. EGR valve port on back of cylinder head.
6.11. Intake System
a. Cars must replace OE air box with the Mazda competition cold air intake kit (part # 0000-06- 5150-KT); no modification (e.g., ducting or
baffling of air, venturi cones) to the cold air intake kit is permitted.
b. No alteration to the intake tube length, diameter, or shape is permitted.
c. The air filter supplied in the Mazda Motorsports competition cold air intake kit may be refreshed
with the Mazda Motorsports’ competition air filter (part # 0000-06-5204).
6.12. Fuel System
a. Fuel must comply with SCCA GCR section 9.3.25
b. OE fuel pump (Mazda part # LFG1-13-350) is required; no modification is permitted.
c. It is permitted to remove the unleaded fuel restrictor from the filler neck. (GCR 9.3.26)
d. Mazda Motorsports’ competition fuel rail that includes fuel pressure gauge, and fuel sampling test port and hose kit (part #
0000-06-5207) is optional.
1. Fuel pressure sensor integrated into the required AIM data acquisition system is required. It must be operational and able to be
viewed when pulling a competitor on track data.
2. The addition of a switch or jumper located in the under-hood fuse box is allowed to acti- vate the fuel pump. This modification may
serve no other purpose.
3. One operational fuel sample test port is required. Fuel sample test ports shall be made from dry break fuel rated quick disconnects.
No other style of fuel sample test port is allowed (e.g., Schrader valves).
4. No other modifications permitted.
e. OE fuel pressure regulator (Mazda part # LFB6-13-280) is required.
1. Vehicle must run between 54 and 63 PSI of fuel pressure.
f. OE injectors (Mazda part # L3G5-13-250) are required; no modification is permitted.
1. Flow rates for the injectors must fall within the factory tolerance of 204-216ml (204-216 cc, 12.5-13.1 cu in/minute).
6.13. Lubrication System
a. OE engine oil filter is required; no substitutions permitted.
b. OE oil pump PT# L310-14-100J is required and no modifications are permitted.
c. Mazda Motorsports’ competition oil cooler adaptor kit with lines (part # 0000-01-5100KT) is required; no modification is
permitted.
d. Oil pressure sensor integrated into the required AIM data acquisition system is required. It must be operational and able to be
viewed when pulling a competitor on track data.
e. Oil and lubricants are unrestricted.
6.14. Engine Control Unit (ECU)
a. Reference penalties for non-compliance of the Spec ECU flash in Section 21 below. Modifica- tion or attempted modification of
the Spec ECU flash will result in a 12-month suspension from competition and $1,000.00 fine.
b. Mazda Motorsports’ competition ECU (part # 0000-01-5379) is required; serial number must be visible; external or internal
modification is not permitted.
c. ECU calibrations and inputs must not be modified.
d. OE engine electrical harness (part # NH18-67-020A) is required; no modification is permitted.
e. OBDII diagnostics port must be operational in all cars.
1. The check engine light must be operational and perform the function test at start up.
2. The OBDII port must be available at all times (including during the race) for tech officials to install test equipment as necessary.
3. If a competitor uses the OBDII port to power any type of data acquisition system, he/she would be responsible for providing the
splitter cable to plug in both units or unplug the data acquisition system.
f. Instrument panel clusters must be operational and unmodified OE parts.
g. Temporary data acquisition devices may be installed by the sanctioning body for technical compliance.
h. Removal of Mazda ECU insulator PT# LFG1-13-3C1 is permitted (diagram below)
6.15. Miscellaneous
a. The factory air conditioning system and all associated lines, compressor, condenser and evap- orator must be removed.
1. Once the AC compressor is removed, the OE AC pulley delete kit (Mazda part # LF17-15- 940E) is required.
b. Serpentine belt Gates PT# 6PK-2170 or same size equivalent is required.
7. Exhaust
a. OE exhaust manifold and OE heat shield must be replaced with Mazda Motorsports’ competi- tion part # 0000-06-5407-NC; no modification
is permitted (e.g., internal or external wraps, coatings, paints, metal treatments, thermal barriers etc.).
b. OE exhaust system must be replaced with Mazda Motorsports’ competition part # 0000-06- 5427-NC; no modification is permitted (e.g.,
internal or external wraps, coatings, paints, metal surface treatment, thermal barriers etc.).
c. The forward oxygen (O2) sensor (OE Lambda Sensor) must remain in the factory location and in full working order. Mazda Motorsports’
competition O2 sensor installation kit wiring extender (part # 0000-10-5320) is permitted.
d. The secondary post catalytic oxygen (O2) sensor must be removed.
e. Heat shielding
1. OE heat shield protecting ABS unit from header may not be removed or modified.
2. OE muffler heat shield may not be removed or modified.
3. It is permitted to wrap the exhaust pipe from the mid connection flange to the muffler.
(see red arrows in picture below)
4. Use of heat shielding material on transmission tunnel to replace OE heat shielding is permitted. OE heat shielding
must be removed from transmission tunnel. (see diagram below)
8. Cooling System
(cooling system
checklist)
a. Mazda Motorsports’ competition radiator and oil cooler assembly (part # 0000-01-5504-CR) is required (e.g., OE is not
permitted).
b. The radiator using the OE mounting brackets must be installed in its original location.
c. The oil cooler may not be moved or altered from the pre-assembled mounting location.
d. Radiator ducting may be placed on each side of the radiator tanks and the undertray to force air through the radiator fins. The
gap between the top and sides of the radiator may be sealed but shall not perform any other function.
e. The unmodified OE cooling fan must be maintained in full working order and mounted in the stock location. Axillary control of
the radiator cooling fan may be added to activate the fan independent of the ECU, OE control of the fan must remain intact.
f. Thermostats may be modified, removed or replaced.
g. The OE water pump (Mazda part # 1F70-15-100) is required; no modification is permitted.
h. The OE water pump pulley (Mazda part # L327-15-131) is required; no modification is permitted.
i. Engine cooling system hoses and clamps may be substituted.
j. The heater core may be removed along with HVAC evaporator core including all associated hard pipes and hoses. This is to include
OE water to oil cooler lines as well as throttle body coolant lines. (Rear coolant pipe 0000-01-5514, bottom coolant pipe 0000-
01-5515)
k. The OE engine coolant expansion tank may be replaced with any aftermarket part but and must not serve another purpose.
9. Clutch, Pressure Plate and Flywheel
a. Vehicle may use any combination of the options listed in Table 11 below.
Table 11: Clutch Component Part Numbers
Description Mazda Part #
Mazda Factory Clutch Disc LF05-16-460A
ACT Sprung Clutch Disc 0000-02-5420-AC
ACT Pressure Plate 0000-02-5405-AC
ACT Clutch and PP Kit 0000-02-5004-G6
Mazda Factory
Pressure Plate LF04-16-410A
b. The unmodified pressure plate must be bolted directly to the stock, unmodified flywheel.
c. OE flywheel (Mazda part # LF9G-11-500) is required. Factory Service Manual resurfacing specification is permitted; no
other modification is permitted.
d. Alternate clutch lines are permitted but must not serve another purpose.
e. Clutch components must adhere to the minimum weights listed in Table 12 below:
Table 12: Clutch Component Part Numbers
Description Minimum Weight (lb.)
Clutch disc 3.5
Pressure Plate 9.4
Flywheel 15.80
10. Transmission
a. OE 2006-2015 6-speed gearbox and 4.10 final drive ratio are required.
b. No modification of the internal parts and ratios are permitted except the installation of the unmodified parts contained in the Mazda
Motorsports MX-5 transmission upgrade kit (part # 0000-02-5700).
c. Mazda Motorsports Competition gear set 0000-02-6000 is allowed. Gear ratios are as follows: 1st - 3.82; 2nd - 2.26; 3rd - 1.64;
4th - 1.18; 5th - 1.00; 6th - 0.83/0.79. There are two (2) production 6th gears; either one is permitted.
d. Alternate shift knobs are permitted.
e. Nomex or aftermarket fireproof shift boots are permitted. Removal of the factory rubber shift boot is not permitted.
f. No treating, coating, polishing or modification of any transmission or components are permitted.
g. Fluids and/or lubricants may be substituted with any lubricant.
h. Updating or backdating of transmissions from 2006–2015 is permitted; unmodified OE shifters must be retained. The use of short throw
shifters is prohibited.
i. An single inspection hole (not to exceed 1.5” in diameter) in the bottom of the bell housing is permitted for the sole purpose of technical
inspection of the flywheel. It is permitted to plug or tape over theat hole.
j. Transmission cooler(s) are permitted.
11. Differential
a. Only the Following differentials are allowed.
1. Mazda Motorsports, unmodified, Torsen limited slip differential – 0000-02-5564
2. OE, unmodified, limited slip differential - Mazda part # MS03-27-200B
3. OE, unmodified, open differential are permitted.
b. RX-8 differential mounting bracket (Mazda part # F151-39-730B) is permitted.
c. Mazda Comp diff bushings 0000-04-5510 is permitted (MX-5 diff mount)
d. Polishing, metal treatment or coating of differential or axle components are not
permitted.
e. Removal of metal/rubber isolator on the pinion flange is permitted.
f. Differential cooler(s) are permitted.
12. Suspension and Steering: Suspension
Modifications are limited to the addition of the Mazda Motorsports Spec MX-5 kit; details are as follows (including all
modifications permitted):
a. OE control arms are required; no modification is permitted.
b. Mazda Motorsports’ TSB MX-5-002 must be followed re: the rear shock thread protector found in the “Spec MX-5: Four Pillars”
page on MazdaMotorsports.com. The thread protector must measure 1.250”. (The TSB will not be applicable to the supply from
Mazda Motorsports received after 7.15.2020 as they will have the updated thread protector.)
c. Anti-roll bar links may be replaced with Mazda part # 0000-04-5597-KT
1. Cockpit adjustability is not permitted.
d. Mazda Motorsports’ competition sway bars are required, mounting guidelines:
1. Metal shims up to 1/8” total thickness are permitted between each anti-roll bar mount shackle and the stock mounting
point on the chassis.
2. One end of the sway bar(s) may be disconnected as a suspension tuning aid.
3. The bar must remain in place and be solidly attached to the suspension on one end.
4. Sway bar end links must be installed on the unmodified stock attachment points.
e. Camber, caster, and toe are unrestricted within the limits of the unmodified factory adjust- ments in conjunction with Mazda
Motorsports front offset bushing (part # 000-04-5407-NC).
f. Minimum ride height is unrestricted.
g. Nuts & bolts may be replaced by similar items performing the same fastening function(s).
h. Relocation or reinforcement of any suspension parts or mounting points is not permitted, with the following exceptions:
1. Addition of spacers or washers on a horizontal plane is permitted at the rear lower shock mount to the spindle per the
shock installation instructions.
2. Updating to RX-8 rear toe link and rear trailing arm is permitted. See Table 13 below.
Table 13: Permitted RX-8 Trailing Arm and Toe Link Part #s
Description Mazda Part #
RX-8 Trailing Arm F189-28-200A
RX-8 Toe Link F189-28-45XA
i. OE power steering pump with pulley (Mazda part # NE51-32-650D) is required; Mazda Motor- sports Power steering flow
restrictor PT#- 0000-04-5532 is permitted; no other modification is permitted.
j. OE power steering rack (Mazda part #: NE51-32-110C) is required; no modification or reloca- tion is permitted.
k. Factory power steering reservoir may be replaced.
l. Wheel center caps must be removed.
m. All chassis, structural and electrical repairs must follow factory procedures, specifications, and dimensions as described in the
applicable service manual. Reinforcement (e.g., seam welding, material addition, etc.) is not permitted.
n. Steering lock mechanisms must be removed.
o. The distance from the outside of the wheel rim to outside of the opposing wheel rim for both the front and rear of the vehicle
must not exceed 69.5”.
I. The distance Measurement is obtained by measuring the distance between the wheel lips by going through
the wheel spokes at the bottom of the wheel at its widest point via tape measure. (Measure the outside wheel
lip of one wheel to outside wheel lip of the other wheel on same axle.)
p. Mazda Motorsports’ competition rear toe link (part # 0000-04-5426) is permitted; no modification is permitted.
q. Mazda Motorsport’s Spec MX-5 Suspension Kit includes the items set forth in Items in Table
14. seen below are components within this kit. No substitutions or modifications of parts are permitted. The
unmodified kits must be used in their entirety, except as specified.
Table 14: Spec MX-5 Suspension Kit (All parts are required; no modification is permitted.)
Description Location Mazda Part #
Shocks Front 0000-04-5291-SA
Rear 0000-04-5292-SA
Springs Front 0000-04-9700-08
Rear 0000-04-9400-07
Helper Springs Front/Rear 0000-04-9926
Front Penske
Mount Kit Front 0000-04-5359
Rear Penske
Mount Kit Rear 0000-04-5358
Sway Bar Kit Front and Rear 0000-04-5306-EB
Offset Bushings Front 0000-04-5407-NC
13. Hubs
a. OE RX-8 front hub (Mazda part # F189-33-04X) may be substituted in place of the OE Miata 2006-2015 front hub.
b. Mazda Motorsports’ competition RX-8 rear hub upgrade kit (part # 0000-04-5811-KT) may be substituted in place of the OE MX-
5 rear hubs; this unmodified kit must be used in its entirety.
c. OE RX-8 rear uprights, bearings, hubs, and hybrid axel may be used in place of OE MX-5 parts.
14. Brakes
a. OE brake rotors must be used and adhere to the specifications below in Table 15.
Table 15: Brake Rotor Dimensions
Location Diameter Notes
Front 290mm (11.4”) Vented
Rear 280mm (11.0”) Solid
Front backing plates/dirt shields may be removed.
(see see red arrow in diagram below)
b. Rear backing plates/dirt shields may be removed.
(see red arrow in diagram below)
c. Brake lines may be replaced with competition braided steel lines; option: Mazda Motorsports’ part # 0000-03-5212.
d. The Factory ABS system must remain intact, unmodified, and in full working order.
e. Brake slider pin may be used in either/both front location B25D-33-694. (This prevents a stuck sliding caliper due to the rubber
grommet)
f. Parking brake mechanisms and actuating components may be removed.
g. Brake fluid is unrestricted.
h. Mazda Motorsports’ competition brake duct kit (part # 0000-03-5301) is permitted.
i. The forward vertical inner fender panels may be modified to fit the brake kit hose to the fog light openings but may not be
modified to serve any additional purpose.
j. Mazda Motorsports’ competition brake pads are required; see eligible brake pad compounds in Table 16. No other brake pads
are permitted.
Table 16: Brake Pad part numbers
Pad Style Mazda Part # Notes
Front Pad 0000-03-5104-SP RST-3 compound
Rear Pad 0000-03-5116-29 RSL-29 compound
15. Wheels
The following unmodified wheel options below in Table 17 are permitted for use.
Table 17: WHEELS
Description Color Mazda Part #
17x7” OE Wheel Gun Metallic 99656-47070
17x7” OE Wheel Silver 99656-77070
Mazda Motorsports’ Competition MX-5 Wheel Gun Metallic 0000-04-5706-GM
Mazda Motorsports’ Competition MX-5 Wheel Silver 0000-04-5706-SL
a. Wheels may be painted.
b. Aftermarket (any) wheel studs and lug nuts are permitted., provided that a minimum of two he threads must protrude
beyond the lug nut with the wheel installed with a minimum of two (2) full threads showing; Wheel studs may not be gun
drilled.
c. Wheel spacers are not permitted.
16. Tires
a. Dry tires: Toyo RR P235/40/ZR17
b. Wet tires: Toyo RA1 P235/40/ZR17.
17. Electrical Equipment
a. OE ignition coils (Mazda part # L3G2-18-100B) are required; no modification is permitted.
b. Mazda’s competition spark plugs (part # 0000-10-R7IX-11) are required; no modification is permitted.
c. The crankshaft position sensor and crankshaft pulley relationship must be as specified in the 2006- 2015 MX-5 Factory Service Manual.
d. One of the two OE alternators (Mazda part # LF9H-18-300R-OA, L3P9-18-300D) is required; no modification is permitted.
e. The alternator must not be externally regulated or disabled in any way other than by the OE
production ECU/wiring circuit and master kill switch.
f. The electronic control module (ECM) control circuit for alternator charging must be OE - unmodified and operational.
g. One of the two OE alternator drive pulley part # AJ51-18-W10 (60mm), Part# L813-18- W11(55mm) is required; no modification
is permitted.
h. All sensors related to engine operating parameters must be used and must be stock, unmodi- fied Mazda parts for the correct year
of the vehicle on which they are installed.
i. Any and all sensors and their respective locations, mounts, and wiring harness leads may not be altered except as elsewhere in this
rule set. e Spec-MX-5 rules.
j. Any sensors required for non-OE gauges must be in addition to the Mazda sensors.
k. All alternate gauge and sensors must have independent wiring. Splicing, tapping, or altering
of the factory engine wiring harnesses is prohibited with the exception of adding an
aftermarket tachom- eter/shift light as follows:
1. It is permitted to splice into the yellow wire with the black stripe (pin 2BA - Ignition
Coil 1 control circuit) in the engine harness to obtain the tachometer signal for an
aftermarket tachometer or shift light.
2. Splicing must be done within 5” of the ECU.
l. Data acquisition’s sensor(s) may be added, provided they do not require splicing or
alteration to the factory engine wiring harness.
m. Batteries
1. Batteries may be replaced with those of an alternate manufacturer, provided they are of
similar amp-hour capacity, and size, including lead acid or AGM.; lLithium batteries are not
permitted.
2. Batteries must weigh no less than 18.0lb and no more than 35.0lb
3. Additional battery hold-down devices are recommended.
4. Battery MUST be moved from the original location to the passenger side
in the upper trunk area in front of the tail lamp. This will require the use
of a bulkhead that separates the driver / passenger compartment
completely from the trunk and the battery location. See section 5.I for
reference.
18. Roll Cage
a. Roll cage must adhere to SCCA’s current GCR Section 9.4 for Touring 4 cars; with the following exceptions:
1. One tube not to exceed 1.75” in diameter may be added which extends from the door bars to the rocker panel on each side.
The landing plate for this tube can be no longer than 5” in length. The landing plates must be centered between the front
and rear landing plates for the lower NASCAR or X brace bar.
2. Main hoop mounting plates may be on multiple planes; however, they must not be greater than 19” on any side.
b. Playboy MX-5 Cup car cages manufactured by Racing Cages, Inc. with the official serial number plate on the main hoop are
allowed to retain the lower door bar and two 3” attachment points to the rocker panel on both the driver’s side and passenger
side. No additional seam welding or lengthening of the original attachment points is allowed.
19. Safety
a. An electrical master (“kill”) switch is required. See current GCR Section 9.3 Master Switch.
b. Vehicle must be equipped with a driver’s restraint system meeting the specifications of current GCR Section 9.3 Drivers
Restraint System.
c. Installation of a fire extinguisher or fire system is required. See current GCR 9.3 Fire System.
d. Vehicle must have a driver’s side window safety net complying with current GCR Section 9.3 Window Safety Nets. Nets must be
mounted to provide protection in the event the driver’s door opens.
20. Data
Acquisition
1 A technical evaluation process for cars is available from the Series. Part of this process is the required download of AiM Data files after
each timed session (Qualifying 1 & 2, Races 1 & 2). Within 30 minutes of each timed session end, all Series Competitors MUST send
the AiM Data file (.XRK) for all timed laps of that session to the secure email address (data@specmx-5.com), where data will be
reviewed by AiM directly. Failure to adhere to this guideline from the Series, or having non- functioning data, may be grounds for
penalty or disqualification by the Series.
a. Vehicle must be equipped with current generation AiM data acquisition system (configurable in Race Studio 3) that can provide
on track data to AiM race studio 3. The data acquisition system may only read the OBDII/ECU data stream. It is not permitted
to alter/manipulate data to and from the ECU. The AiM system may be utilized to trigger a switch I.E., cooling fans or diff cooler
pumps but must be wired via a separate analog circuit.
Refer to Section 17: Electrical Equipment above for installation requirements.
b. The connection at the OBDII port for the AiM system may be made in either one of two ways:
1. Through a dedicated OBDII AiM adaptor.
2. By direct wiring to the back of the OBDII port within 3” of the ODBII connector.
c. Fuel pressure datalogging is required.
d. Oil pressure datalogging is required.
e. All cars must run the latest AIM Data Logger Spec MX-5 ECU Protocol
21. Mandatory
Video
Camera
Cars running in Spec MX-5 must have a functioning video recorder/camera during all qualifying and race sessions as described in 9.3.11.
Upon request by an SCCA official, competitors must provide their video recording/data, which may be used by the SCCA for any
purpose including but not limited to rule enforcement and marketing. Failure to comply with a video request from an official, or
having a non-functioning video recorder/camera ~~may~~ will be grounds for penalty or disqualification.
22. Parts
Confiscation
a. Tech officials may confiscate competitors’ parts for the purpose of verification of tech compliance.
23. Penalties Clarification – Non-Compliant Parts
Level Infraction Penalty
1 Non-compliant modification to any of the spec
parts, engine components, ECU/Elec- tronics or
modification to the chassis.
May suspend the driver (i.e. suspend) of the non-
compliant Spec MX-5 from competing in SCCA
events for the 12 months following the suspension.
A level 1 infraction carries a $1,000 fine.
2
Non-compliant modification to the suspen- sion or
drivetrain outside of level one infrac- tions: engine,
fuel system, charging system, exhaust, and intake
system.
May suspend the driver (i.e. suspend) of the non-
compliant Spec MX-5 from competing in SCCA
events for the 6 months following the suspension.
A level 2 infraction carries a $500 fine.
3 Use of an unauthorized or non-compliant part,
engine component, ECU/Electronics or chassis or
chassis part.
May suspend the driver (i.e. suspend) of the non-
compliant Spec MX-5 from competing in SCCA
events for the 12 months following the suspension.
A level 3 infraction carries a $1,000 fine
4
Non-compliance (non-modification such as
incorrect part)Use of an unauthorized or non-
compliant for any of the suspension or drive- train
part or component outside of level one infractions:
engine, fuel system, charging system, exhaust, and
intake system.
May suspend the driver (i.e. suspend) of the non-
compliant Spec MX-5 from competing in SCCA
events for the 6 months following the suspension.
A level 4 infraction carries a $500 fine

2024-09-01 SM Committee) OE versus OEM Definitons

#36608 from Spec Mazda (SM/SMX · Rule change · TB 24-09 (2024-09 Fastrack)

Summary

wordingSMX Mazda Miata OE versus OEM definitions clarified in GCR Section 9.1.7.1.

As printed in Fastrack

In GCR, Replace Section 9.1.7.1 Spec MX-5 (SMX) with the attached:

2024-09-01 SM Committee) Shifter Bushing

#36611 from Spec Mazda (SM/SMX · Rule change · TB 24-09 (2024-09 Fastrack)

Summary

wordingSM and SMX shifter bushing rules clarified: alternate bushing at shift lever bottom now allowed.

As printed in Fastrack

In section 9.1.7.1.D.6.3., add the following:
"k. Alternate shifter bushing located at the bottom of the shift lever is allowed."

2024-09-01 AS Mustang transmission ratios

#36662 from American Sedan Committee · Rule change · TB 24-09 (2024-09 Fastrack)

Summary

unclearAS Ford Mustang GT models gain alternate transmission ratio options for 2024-09-01.

As printed in Fastrack

In AS Spec Lines, Ford Mustang GT (05-14) with Restricted Prep Engine, add to Notes as follows:
"Alternate transmission Ratios 3.66, 2.43, 1.69, 1.32, 1.00, .68.”
In AS Spec Lines, Ford Mustang GT 5.0L (2018-), add to Notes as follows:
"Alternate transmission Ratios 3.24, 2.10, 1.42, 1.00, 0.81, .062."

Applies to Ford Mustang on this page: Michael Kamalian, Thomas J Ellis, Gregory Eaton, James Jost

2024-11-01 B-Spec Scion IA/Toyota Yaris/Mazda 2 DY chassis suspension

#35780 from Derrick Ambrose · Rule change · TB 24-09 (2024-09 Fastrack)

Summary

unclearB-Spec Toyota/Scion IA Sedan 16-20 allows ST Suspension Kit 13275022, requires three Super Tour weekends and OBD-II data submission.

As printed in Fastrack

In B-Spec Spec Lines, Toyota/Scion IA Sedan (16-20), change Notes as follows:
"38mm FPR. (Effective 11/1/2024) Allow ST Suspension Kit 13275022. This configuration is not currently eligible for Runoffs
competition. This car must compete in three (3) separate Super Tour weekends so that performance data can be collected. In
addition to SCCA data box, OBDII data collected via an AIM or similar device must be submitted."

2024-11-01 B-Spec Clean up 07-08 Honda Fit AT Notes Section

#36542 from B-Spec/C-Spec Committee · Rule change · TB 24-09 (2024-09 Fastrack)

Summary

fasterHonda Fit AT 07-08 B-Spec and C-Spec: rear sway bar Progress #62.1060 and any cold air intake package now allowed.

As printed in Fastrack

In B-Spec Spec Lines, Honda Fit AT 07-08, change Notes as follows:
"(Effective 11/1/2024) ~~Allow damper and spring set 51600F23SA100, Damper FR LH 51605F23SA100, Damper FR RH~~
~~51606F23SA100, Damper RR 52610F23SA100, Spring adjust asy RR 52691F23SA010. Seat upper FR spring 51688F23SA200,~~
~~51402FC4YA00 front helper spring and 51403FC4YA00 front spacer permitted. Front Damper Mount P/N 51920-F23S-A30 is~~
~~allowed.~~ Allow rear sway bar Progress # 62.1060. Any Cold Air Intake Package allowed (any manufacturer). This configuration is
not currently eligible for Runoffs competition. This car must compete in three (3) separate Super Tour weekends so that
performance data can be collected. In addition to SCCA data box, OBDII data collected via an AIM or similar device must be
submitted."

Applies to Honda Fit on this page: Blair Deffenbaugh, Luke Russell, Jason Grant, Eric Yagel, Daniel Wold

2024-11-01 T4 Bop Request 06-11 Honda Civic Si

#37013 from Mathew Milford · Rule change · TB 24-11 (2024-11 Fastrack)

Summary

wordingT4 Honda Civic Si 06-11 permitted to use LSD per category rules.

As printed in Fastrack

In T4 Spec Lines, Honda Civic Si (06-11), add to Notes the following:
"LSD is permitted according to category rules."

2024-12-01 T4 Redundant Verbiage Regarding Mustang Spec Lines for Driveshaft

#36484 from David Mead · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

wordingT2 and T3 Mustang spec lines remove redundant driveshaft alternate/aluminum allowance wording.

As printed in Fastrack

In T2 Spec Lines, change Notes as follows:
Ford Mustang V6 (11-14): "~~Alternate driveshaft is allowed.~~"
Ford Mustang Boss 302 (12-13): "~~Alternate driveshaft is allowed.~~"
Ford Mustang GT 5.0L (11-14): "~~Alternate driveshaft is allowed.~~"
Ford Mustang GT 5.0L (15-17): "~~Alternate driveshaft is allowed.~~"
Ford Mustang GT 5.0L (2018-): ~~"Alternate driveshaft is allowed~~. Springs up to 800#/in front and rear permitted. ~~Alternate~~
~~metallic driveshaft permitted.~~"
Ford Mustang Coupe GT & Shelby GT 4.6L (05-10): "~~Alternate driveshaft is allowed.~~"

Show 4 more lines

In T3 Spec Lines, change Notes as follows:
Ford Mustang Coupe GT & Shelby GT 4.6L & Cal. Special (05-10): "~~Alternate driveshaft is allowed.~~"
Ford Mustang V6 (11-14): "~~Alternate driveshaft is allowed.~~"
Ford Mustang V6 (05-10): "~~An Aluminum driveshaft is allowed.~~"

2024-12-01 T4 R53 Mini Cooper S Weight Reduction Request

#36612 from Manvinder Singh · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

fasterT4 Mini Cooper S R53 now allows Alta 15% Pulley #AMPENG20X.

As printed in Fastrack

In T4 Spec Lines, Mini Cooper S R53 (02-06), add to Notes as follows:
"Alta 15% Pulley #AMPENG20X allowed."

2024-12-01 T4 Allowable Wheel Offset

#36855 from Robert Maples · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

wordingT4 removes restriction on aftermarket wheel weight minimum of 15 lbs.

As printed in Fastrack

In GCR Section 9.1.9.2.D.7. Wheels and Tires, change as follows:
"a. Wheels
1. Any type wheel suitable for competition may be used, provided:
a. Any wheel not exceeding the specified diameter and rim width on the vehicle’s specification line may be used. Each wheel,
measured without weights, must weigh at least 15 lbs.
b. Wheels are permitted any offset provided the tire tread (that portion of the tire that contacts the ground) does not protrude
beyond the fender opening when viewed from 9.1.9.2.Touring (T2-T4) Category Specifications GCR - 660 the top perpendicular
to the ground, unless specified differently on the individual spec line for that car. To determine compliance the vehicle should be

Show 7 more lines

rolled through a powdered substance, as raced with driver, in order to indicate the tire tread contact patch under static
conditions. When a maximum tire size is listed on a vehicle’s specification line, aspect ratio is open and any tire may be used that
does not exceed the stated maximum section width.
c. Cars equipped with lug bolts may convert to wheel studs and lug nuts.
d. Wheel studs may be replaced with longer studs as necessary to fit optional wheels. Wheel spacers may be used for purposes
of adjusting track.
~~e-T4 only: (unless specified on spec line) Any aftermarket wheel with a minimum weight of 15 lbs allowed.~~"

2024-12-01 SM E&O SMX Regs 9.1.7.1.D.5.u-.w

#37070 from Greg Amy · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

wordingSMX allows OE instrument cluster relocation for aftermarket dash mounting, with wiring re-routed only; alternate gauges now permitted.

As printed in Fastrack

In GCR, Section 9.1.7.D.5.u-w, change as follows:
"u. ~~Alternate guages and instuments may be added.~~ The ~~original~~ OE instrument cluster must remain unmodified, connected and
functional. However, it may be relocated to allow the mounting of an aftermarket dash such as an AIM. The wiring to relocated
the dash may not be cut or extended, it may only be re-routed. The remainder of teh dashboard or panel must remain intact.
v. Alternate gauges and instuments may be added.
w. Modifications may be made to the foot pedals to improve the comfort and accessibility to the driver; relocation of mounting
points is not permitted.
1. Dead pedal/footrest and heel stop may be added.

Show 1 more lines

~~w. Instrument clusters must be unmodified parts.~~"

2024-12-01 T4 Fuel Emissions Components

#37076 from Derrick Ambrose · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

wordingT2, T3, T4 fuel cell installations may remove charcoal canisters, emissions valves, and sensors.

As printed in Fastrack

In GCR, Section 9.1.9.2.D.1.c. add the following:
"5. Removal of ancillary fuel tank equipment charcoal canisters, emissions valves, and sensors allowed for OEM or aftermarket
fuel cell installations."

2024-12-01 T4 2019-2024 Mazda 3 for T4

#37077 from Derrick Ambrose · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

cars addedMazda 3 (19-24) newly classified in T4 at 2850 lbs with 17×8 wheels and 245 tires.

As printed in Fastrack

In T4 Spec Lines, classify Mazda 3 (19-24), as follows:

A specification table follows in the original; it is not shown here.

2024-12-01 T4 fix brake wording

#37129 from Touring Committee · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

wordingT2, T3, T4 brake component wording clarified: 2-piece rotors allowed in T2 within 5% OE diameter, T3 within 2% OEM diameter.

As printed in Fastrack

In GCR, Section, 9.1.9.2.D.6. Brakes, change as follows:
"a. Components
1. The make and material of brake pads and linings may be changed.
2. Brake fluid may be substituted with any brake fluid.
3. Brake rotor dust shields may be removed or replaced to accommodate brake ducts.
4. Flexible rubber brake lines may be replaced with Teflon lined, metal braided hoses.
5. Any brake ducts are permitted, but they must serve no other purpose. Fender liners may be modified solely for routing and
attachment of brake ducts. Duct intake openings may be created by the opening of 2 sections up to 14.5 square inches each in

Show 10 more lines

the front fascia. The stock headlamp location is not permitted for brake ducting. Two alternative duct openings may be created
by the removal of the fog lights or 2 sections up to 14.5 square inches each of stock false grills originally located in the front
fascia.
6. Stock replacement brake rotors may be obtained from sources other than the manufacturer provided they are the exact
equivalent of the stock rotors. In T2 only - 2-piece rotors with ferrous metal rotor disks and aluminum hats are allowed, must be
within 5% of OE diameter. In T3 only - 2-piece front rotors with ferrous metal rotor disks and aluminum hats are allowed, must
be within 2% of OEM diameter. Drilled and slotted rotors are permitted.
7. Parking brakes, mechanisms, and actuating components may be removed.
8. Brake vacuum reservoirs sized 0.50 gallons or smaller are permitted. The port or fitting at the vacuum source may not be
modified, enlarged or relocated. The vacuum reservoir and brake booster must be a closed system."

2024-12-01 T4 Evaporative emissions systems

#37130 from Touring Committee · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

wordingT2, T3, T4 fuel cell cars may remove charcoal canisters, emissions valves, and sensors.

As printed in Fastrack

In GCR, Section, 9.1.9.2.D.1.c., add the following:
"5. Removal of ancillary fuel tank equipment; charcoal canisters, emissions valves, and sensors allowed for OEM or aftermarket
fuel cell installations."

2024-12-01 T4 Allow Spec MX5 upgrade kit for 2009-11 RX8 S2 Transmision

#37140 from Chris Braunlich · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

wordingT3 and T4 Mazda RX-8 and MX-5 permit transmission kit #0000-02-5700.

As printed in Fastrack

In T4 Spec Lines, add the following to Notes:
Mazda RX-8 Base/R3/Sport/ GT (04-12): "Transmission kit # 0000-02-5700 permitted.
Mazda MX-5 / Club Model (06-15): "Transmission kit # 0000-02-5700 permitted."
In T3 Spec Lines, add the following to Notes:
Mazda MX-5 / Club Model (06-15): "Transmission kit # 0000-02-5700 permitted."
Mazda RX-8 Base/R3/Sport/ GT (04-12): "Transmission kit # 0000-02-5700 permitted."

2024-12-01 T4 Move Spec Boxster to T4

#37158 from Rob Piekarczyk · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

cars addedPorsche Spec Boxster moves to T4, minimum weight 2750 lbs, requires 3 Super Tour events before Runoffs eligibility.

As printed in Fastrack

In T4 Spec Lines, classify Porsche Spec Boxster, as follows:

A specification table follows in the original; it is not shown here.

2024-12-01 T4 3.7 Mustangs to T4

#37188 from Scotty B White · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

cars addedFord Mustang V6 (05-14) newly classified to T4 with 50mm restrictor, 3400 lbs minimum weight.

As printed in Fastrack

In T4 Spec Lines, classify Ford Mustang V6 (05-14), as follows:

A specification table follows in the original; it is not shown here.

Applies to Ford Mustang on this page: Scotty B White, Paolo Salvatore

2024-12-01 T4 BMW 320i Spec Line

#37204 from chi ho · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

wordingT4 BMW 320i 14-15 Spec Line expires 12/31/24 removed; Turner Motorsports intercooler #024703TMS02 allowed.

As printed in Fastrack

In T4 Spec Lines, BMW 320i (14-15), change Notes as follows:
"~~**This Spec line will expire 12/31/24, Please submit to appeal**~~ Turner Motorsports intercooler #024703TMS02 allowed."

2024-12-01 T4 MX5 2006-2015 NC Help

#37221 from Richard Mooney · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

unclearUnable to summarize: rule changes specified in letter #37281, not provided.

As printed in Fastrack

Thank you for your letter. Please see changes in letter #37281 in current Fastrack.

2024-12-01 T4 Classification for a 2005 Cadillac CTS 3.6 liter 6 speed manual

#37224 from Timothy Nash · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

cars addedCadillac CTS 02-07 3.6L classified in T3.

As printed in Fastrack

In T3 Spec Lines, classify Cadillac CTS (02-07) as follows:

2024-12-01 T4 Civic SI in T4

#37248 from Touring Committee · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

fasterT4 Honda Civic Si 06-11 minimum weight drops 50 lbs to 2900, restrictor clarified.

As printed in Fastrack

In T4 Spec Lines, Honda Civic Si (06-11), change as follows:
Required Restrictor: "55mm flat plate restrictor required."
Min Weight: "~~2950~~ 2900"
Notes: "~~The following items must remain stock: transmission differential - unless specified below. 55mm flat plate restrictor~~
~~required. LSD IS PERMITTED ACCORDING TO CATEGORY RULES~~"

2024-12-01 T4 2006-2015 T4 NC Mx5 spec line

#37278 from Touring Committee · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

wordingT4 NC MX-5 06-15 removes SM5 suspension allowance, clarifies Mazda Motorsports LSD part number, adds weight penalty for other LSDs.

As printed in Fastrack

In T4 Spec Lines, Mazda MX-5 / Club Model (06-15), change Notes as follows:
"Factory bolt-in roll bar/cross member may be removed to facilitate roll cage installation. MSR option permitted. Suspension
package permitted with a 100 lbs. weight increase that includes the following parts: front spring mount PT#-0000-04-5259, front
springs #0000-04-9700-08, rear spring mount PT#-0000-04-5258, rear springs #0000-04-9400-07, helper springs #0000-04-HLPR-
EB (optional), Swaybar kit – PT#-0000-04-5306-EB that includes (front sway bar kit PT#0000-04- 5306-FT, rear sway bar kit PT#-
0000-04-5306-RR), offset front camber bushing PT#-0000-04- 5407-NC. Mazda Motorsports cold air intake part #0000-06-5150-
KT allowed. Mazda Motorsport RX8 rear Hub Conversion kit part number 0000-04-5811-KT allowed, RX8 front hubs PT# F189-33-
04X allowed. ~~The SM5 suspension (only) is allowed with a 100 lbs. weight increase~~. Allow Mazda header part numbers 0000-06-

Show 4 more lines

5407 or 0000-06-5407-NC. Any OEM or aftermarket hardtop is permitted that retains the OEM roof silhouette, including Mazda
hardtop and part #0000-07-5901- CC. Aftermarket power steering reservoir is allowed. Mazda Transmission kit part # 0000-02-
5700. Mazda Motorsports LSD ~~#3265~~ 5 0000-02-5564 permitted without penalty. Any other non-OEM limited slip differential
allowed with +50 lbs. weight penalty. Front spoiler permitted (NF51-V4-900F)."

Applies to Mazda MX-5 on this page: Marc Cefalo, Robert Spence, Kevin Fryer, Richard Mooney, Sergio Zlobin

2024-12-01 T4 ND MX-5 wheel allowance

#37279 from Josh Smith · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

unclearT4 Mazda MX-5 Miata/Club (16-18) wheel size changes to 17 x 7.5 inches.

As printed in Fastrack

In T4 Spec Lines, Mazda MX-5 Miata/Club (16-18), change Wheel Size as follows:
"17 x 7.5"

Applies to Mazda Miata on this page: Jonathan Neudorf, Ethan Barker, Charles Habisreutinger, Ayden Rose

Applies to Mazda MX-5 on this page: Marc Cefalo, Robert Spence, Kevin Fryer, Richard Mooney, Sergio Zlobin

2024-12-01 T4 T4 BOP

#37281 from Touring Committee · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

slowerT4 Mazda RX-8 gets 59mm restrictor and 3200 lbs; MX-5 Club drops to 2550 lbs.

As printed in Fastrack

In T4 Spec Lines, Mazda RX-8 Base/R3/Sport/ GT (04-12), change as follows:
Required Restrictor: "~~60mm~~ 59mm"
Weight: "~~3125~~ 3200"
In T4 Spec Lines, Mazda MX-5 / Club Model (06-15), change weight as follows:
"~~2600~~ 2550"

Applies to Mazda MX-5 on this page: Marc Cefalo, Robert Spence, Kevin Fryer, Richard Mooney, Sergio Zlobin

2024-12-01 T4 Allow 7.5

#37286 from Touring Committee · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

tyres & wheelsT4 Mazda MX5 Miata/Club/RF 19-24 wheel size changes to 17 x 7.5.

As printed in Fastrack

In T4 Spec Lines, Mazda MX5 Miata/Club/ RF (19-24), change Wheel Size as follows:
"17 x 7.5"

2025-01-01 B-Spec Remove wheelbase from spec lines and replace with Restrictor

#36074 from B-Spec/C-Spec Committee · Rule change · TB 24-11 (2024-11 Fastrack)

Summary

unclearB-Spec and C-Spec cars replace wheelbase spec with induction restrictor (mm) values, effective 2025-01-01.

As printed in Fastrack

In B-Spec Spec Lines that are not expiring on 1/1/25, replace Wheelbase as follows:
"(Effective 1/1/2025)~~Wheelbase~~ Restrictor (mm)"
In B-Spec Spec Lines, update the value in the spec lines under the Restrictor column as follows effective 1/1/2025:
Chevrolet Sonic Sedan MT (12-19): "~~2525~~ 33"
Chevrolet Sonic Sedan AT (12-19): "~~2525~~ 35"
Chevrolet Sonic Hatchback MT (12-19): "~~2525~~ 34"
Chevrolet Sonic Hatchback AT (12-19): "~~2525~~ 36"
Fiat 500 (12-17): "~~2300~~"

Show 28 more lines

Ford Fiesta Hatchback (11-19): "~~2470~~ 39"
Ford Fiesta Sedan (11-19): "~~2470~~ 38"
Honda Fit MT (07-08): "~~2450~~"
Honda Fit AT (07-08): "~~2450~~"
Honda Fit MT (09-14): "~~2500~~"
Honda Fit AT (09-14): "~~2500~~"
Honda Fit MT (15-19): "~~2530~~ 31"
Honda Fit CVT (15-19): "~~2530~~ 33"
Hyundai Accent Hatchback (12-19): "~~2570~~ 41"
Kia Rio Hatchback (12-19): "~~2570~~ 41"
Mazda2 (10-14): "~~2490~~"
Mini Cooper Hatchback (R50) MT (02-06): "~~2466~~"
Mini Cooper Hatchback (R50) CVT (02-06): "~~2466~~"
Mini Cooper (R56) MT (07-10): "~~2466~~ 44 (OE Catalyst) 40 (Header)"
Mini Cooper (R56) AT (07-10): "~~2466~~ 46 (OE Catalyst 42 (Header)"
Mini Cooper Clubman (R55) (07-10): "~~2547~~ 44 (OE Catalyst) 40 (Header)"
Mini Cooper (R56LCI) MT (11-13): "~~2466~~ 43"
Mini Cooper (R56LCI) AT (11-13): "~~2466~~ 43"
Mini Cooper Clubman (R55) (11-15): "~~2547~~ 42"
Mini Cooper Coupe (R58) (12-15): "~~2466~~ 42"
Nissan Micra Cup Cars (Canadian): ~~"2450~~"
Nissan Versa Sedan (2012-2019): ~~"2600~~"
Nissan Versa Hatchback (2012-2019): ~~"2600~~"
Nissan Versa (2020-): "~~2618~~ 38"
Toyota/Scion IA Sedan (16-20): "~~2570~~ 38"
Toyota Yaris Hatchback (07-11): "~~2461~~ 42"
Toyota Yaris Hatchback (12-18): "~~2510~~ 42"
Toyota Yaris Sedan (07-12): "~~2550~~ 41"

2025-01-01 AS Increase Coyote Engine Restrictor to 80mm

#36177 from Gregory Eaton · Rule change · TB 25-01 (2025-01 Fastrack)

Summary

fasterAS Ford Mustang Coyote engines increase restrictor to 80mm from 64mm or 67mm.

As printed in Fastrack

In AS Spec Lines, add to Notes as follows:
Ford mustang (GT 05-14): "Gen 1- 67mm Gen 2-64mm"
Ford mustang (GT 05-14): "Gen 1- 67mm"
Ford mustang (GT 15-17): "Gen 1- 67mm"
Ford mustang (GT 94-04): "Gen 1- 67mm Gen 2-64mm"
Ford mustang cobra & Cobra R Mercury Capri (79-93) (79-86): "Gen 1- 67mm Gen 2-64mm"

2025-01-01 AS Performance Pack for 2015+ Mustang

#36867 from Michael Kamalian · Rule change · TB 25-01 (2025-01 Fastrack)

Summary

fasterAS Mustang GT 05-14 4.6L loses 300 lbs; 15-17 and 2018+ models lose 61mm and 60mm restrictors respectively.

As printed in Fastrack

In AS Spec Lines, Ford Mustang Coupe GT (05-14) Restricted Prep., change Notes as follows:
"The 4.6L engine assembly has a weight reduction of 300 lbs. 5.0L/6spd engine/trans: track pack front and rear spoiler allowed."
In AS Spec Lines, Ford Mustang Coupe GT (05-14) with Restricted Prep. engine, change Notes as follows:
"Max. Wheel Size: Dia.18.0 inches. Stock brakes or alternate Ford 14” Brembo Brake (Ford Racing Kit #M-2300-S) and full prep
brake package may be used. Either engine may be used. ~~1st Generation 5.0l Coyote 11-14 62mm FPR 2nd Generation 5.0l~~
~~Coyote 15-17 61mm FPR~~ Cold Air Intake allowed Charge Motion Control Valves can be blocked off and removed for firewall
clearance Allow Cold Air Intake Tremec Magnum transmission may be used P/N- TUKT16901. Full Prep Transmissions rule
package may also be used. Max compression ratio, 11.2:1 track pack front and rear spoiler allowed. Alternate transmission

Show 10 more lines

Ratios 3.66, 2.43, 1.69, 1.32, 1.00, .68."
In AS Spec Lines, Ford Mustang GT 5.0l (15-17) Restricted Preparation, change Notes as follows:
"Max. Wheel Size: Dia. 18.0 inches. Stock brakes or alternate Ford Brembo Brake caliper (Ford Racing Kit #M-2300-S) may be
used. ~~61mm flat plate restrictor required. Fuel cells must be located within 24 inches of the standard tank. The 24 inch~~
~~measurement is taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with installation~~
~~of a safety fuel cell~~. 11” wide wheels can be used until 3/1/25. Performance pack front and rear spoiler, body kit allowed."
In AS Spec Lines, Ford Mustang GT 5.0L (2018-), change Notes as follows:
"Package Brembo front BBK and 380mm rotors permitted (Ford PN M-2300-V) at no weight penalty. ~~60mm flat plate restrictor~~
~~required.~~ 2014 Mustang GT exhaust manifolds permitted. Ford Racing oil pan #M-6675-M50BR permitted. ~~Alternate~~
~~transmission Ratios 3.24, 2.10, 1.42, 1.00, 0.81, .062.~~ Performance pack front and rear spoiler, body kit allowed."

Applies to Ford Mustang on this page: Michael Kamalian, Thomas J Ellis, Gregory Eaton, James Jost

2025-01-01 B-Spec Bilstein Rear Shock Request for Hyundai Accent/Kia Rio

#36965 from Alex Ratcliffe · Rule change · TB 25-01 (2025-01 Fastrack)

Summary

suspension & brakesB-Spec Hyundai Accent and Kia Rio approve Bilstein B8 shock 33-187112 for rear suspension use.

As printed in Fastrack

In B-Spec Spec Lines, Hyundai Accent Hatchback (12-19), add to Notes the following:
"Bilstein B8 shock 33-187112 approved for use in rear suspension."
In B-Spec Spec Lines, Kia Rio Hatchback (12-19), add to Notes the following:
"Bilstein B8 shock 33-187112 approved for use in rear suspension."

2025-01-01 T4 2016-2018 Mazda Miata MX5

#37085 from Nic Piekarski · Rule change · TB 25-01 (2025-01 Fastrack)

Summary

fasterT4 2016-2018 Mazda Miata MX-5 minimum weight reduced to 2575 lbs from 2650 lbs.

As printed in Fastrack

In T4 Spec Lines, Mazda MX-5 Miata/Club (16-18), change Min Weight as follows:
"~~2650~~ 2575"
In T4 Spec Lines, Mazda MX5 Miata/Club/ RF (19-24), add to Notes the following:
"Mazda header 0000-06-5410 allowed."

Applies to Mazda Miata on this page: Jonathan Neudorf, Ethan Barker, Charles Habisreutinger, Ayden Rose

Applies to Mazda MX-5 on this page: Marc Cefalo, Robert Spence, Kevin Fryer, Richard Mooney, Sergio Zlobin

2025-01-01 AS Gear Ratios

#37131 from Timothy White · Rule change · TB 25-01 (2025-01 Fastrack)

Summary

wordingAS class gear ratio options specified for multiple American muscle cars, including Cadillac CTS-V, Chevrolet Camaro, Ford Mustang, Dodge Challenger, and Pontiac GTO.

As printed in Fastrack

In AS Spec Lines, change Gear Ratios as follows:
Cadillac CTS-V (04-07):
"2.97, 2.07, 1.43,1.00, 0.84,0.56 or 3.01, 2.07, 1.43, 1.0, .84, .57 or 2.20, 1.64,1.28,1.00 or 2.88, 1.91, 1.33, 1.00"
Chevrolet Camaro, Pontiac Firebird (70-81), Full Prep:
"3.42, 2.28, 1.45, 1.00 or 2.95, 1.94, 1.34, 1.00, 0.73 or 3.35, 1.93, 1.29, 1.00, 0.61, or 2.20, 1.64,1.28,1.00 or 2.87,1.89,1.28,1.00"
Chevrolet Camaro, Pontiac Firebird (70-81), Restricted Prep.:
"3.42, 2.28, 1.45, 1.00 or 2.95, 1.94, 1.34, 1.00, 0.73 or 3.35, 1.93, 1.29, 1.00, 0.61, or 2.20, 1.64,1.28,1.00 or 2.87,1.89,1.28,1.00"
Chevrolet/Pontiac Camaro & Firebird (82-92) Full Prep:

Show 42 more lines

"3.42, 2.28, 1.45, 1.00 or 2.95, 1.94, 1.34, 1.00, 0.73 or 3.35, 1.93, 1.29, 1.00, 0.61 or 2.20, 1.64,1.28,1.00 or 2.88, 1.91, 1.33,
1.00"
Chevrolet/Pontiac Camaro & Firebird (93-02) Full Prep:
"3.42, 2.28, 1.45,1.00 or 2.95, 1.94,1.34, 1.00,0.73or 3.35, 1.93,1.29, 1.00,0. 61 or 2.88, 1.91, 1.33, 1.00 or 3.27, 1.98, 1.34, 1.00,
0.68 or 2.20,1.64,1.28,1.00 or 2.87,1.89,1.28,1.00,.81"
Chevrolet/Pontiac Camaro & Firebird (93-02) Restricted prep:
"2.97, 2.07, 1.43, 1.00, 0.80, 0.62 or 3.36, 2.07, 1.35, 1.00, .80, .62 or 2.66, 1.78, 1.30, 1.00, 0.74, 0.50 or 2.88, 1.91, 1.33, 1.00 or
2.20, 1.64,1.28,1.00"
Chevrolet Camaro SS (V8) (10-15) Restricted Prep:
"3.01, 2.07, 1.43, 1.0, .84, .57 or 2.88, 1.91, 1.33, 1.00 or 2.20, 1.64,1.28,1.00"
Chevrolet Camaro (10-15) Full Prep:
"3.42, 2.28, 1.45,1.00 or 2.95, 1.94,1.34, 1.00, 0.73or 3.35, 1.93,1.29, 1.00,0. 61 or 2.88, 1.91, 1.33, 1.00 or 3.27, 1.98, 1.34, 1.00,
0.68 or 2.20, 1.64,1.28,1.00 or 2.87,1.89,1.28,1.00,.81"
Chevrolet Camaro (16-) Full Prep:
"3.42, 2.28, 1.45,1.00 or 2.95, 1.94,1.34, 1.00, 0.73or 3.35, 1.93,1.29, 1.00,0. 61 or 2.88, 1.91, 1.33, 1.00 or 3.27, 1.98, 1.34, 1.00,
0.68 or 2.20, 1.64,1.28,1.00 or 2.87,1.89,1.28,1.00,.81"
Chevrolet Camaro, 1LE (16-):
"2.66,1.78,1.30, 0.74,.50 or 2.88, 1.91, 1.33, 1.00 or 2.20, 1.64,1.28,1.00 or 2.88, 1.91, 1.33, 1.00 or 2.20, 1.64,1.28,1.00"
Dodge Challenger (08-20) Restricted Preparation 5.7L, 6.1L, or 6.4L V8 (Iron block, Aluminum heads), 2 valves/cylinder:
"2.97, 2.1, 1.46, 1.00, 0.74, 0.50 or 2.26, 1.58, 1.19, 1.00, 0.77, 0.63 or 2.88, 1.91, 1.33, 1.00 or 2.20, 1.64,1.28,1.00"
Ford Mustang Incl. Cobra & Cobra R (79-93) and Mercury Capri (79-86) Full Prep:
"3.07, 1.72, 1.00, 0.70 or 2.95, 1.94, 1.34, 1.00, 0.63 or 3.35, 1.99, 1.33, 1.00, 0.68 or 2.87 1.89 1.28 1.00 0.81"
Ford Mustang Incl. Cobra & Cobra R (79-93) and Mercury Capri (79-86) with Restricted Prep Engine:
"2.95, 1.94, 1.34,1.00, 0.63 or 3.35,1.99,1.33, 1.00, 0.69 or 2.88, 1.91, 1.33, 1.00 or 3.27,1.98, 1.34, 1.00, 0.68, 3.66, 2.43, 1.69,
1.32, 1.00, .68. or 2.87,1.89,1.28,1.00,.81"
Ford Mustang Including Cobra 94-04 Full Prep:
"3.07, 1.72, 1.00, 0.70 or 2.95, 1.94, 1.34, 1.00, 0.63 or 3.35, 1.99, 1.33, 1.00, 0.68 or 2.88, 1.91, 1.33, 1.00 or 3.27, 1.98, 1.34,
1.00, 0.68 or 2.88, 1.91, 1.33, 1.00 or 3.27, 1.98, 1.34, 1.00, 0.68 or 2.20, 1.64,1.28,1.00 or 2.87 1.89 1.28 1.00 0.81"
Ford Mustang Cobra and GT 94-95 (Restricted Prep):
"3.35, 1.99, 1.33, 1.00, 0.68 or 2.88, 1.91, 1.33, 1.00 or 2.20, 1.64,1.28,1.00"
Ford Mustang including Cobra 96-04 (Restricted Prep) 4.6L two and four valve motor:
"3.35, 1.99, 1.33, 1.00, 0.68 or 3.27, 1.98, 1.34, 1.00, 0.67 or 3.37, 1.99, 1.33, 1.00, 0.68 or 3.38, 2.00, 1.32, 1.00, 0.68 or 2.88,
1.91, 1.33, 1.00 or 2.20, 1.64,1.28,1.00"
Ford Mustang GT (05-14) Full Prep:
"3.38, 2.00, 1.32, 1.00, 0.68 or 3.66, 2.43, 1.69,1.32, 1.00, 0.65 or 2.88, 1.91, 1.33, 1.00 or 2.20, 1.64,1.28,1.00"
Ford Mustang GT 5.0l (15-17) Restricted Preparation:
"3.66, 2.43, 1.69,1.32, 1.00, .65 or 4.69, 2.98,2.14, 1.76,1.52, 1.27,1.00, 0.85, 0.68, 0.63, or 3.24, 2.10, 1.42, 1.00, 0.81, .062. or
2.88, 1.91, 1.33, 1.00 or 2.20, 1.64,1.28,1.00"
Ford Mustang GT 5.0L (2018-) Restricted Preparation:
"2.97, 2.07, 1.43, 1.00, 0.84, 0.57 or 2.88, 1.91, 1.33, 1.00 or 2.20, 1.64,1.28,1.00"
Pontiac GTO (04-06) Restricted Prep.
"2.97, 2.07, 1.43, 1.00, 0.84, 0.57 or 2.88, 1.91, 1.33, 1.00 or 2.20, 1.64,1.28,1.00"

2025-01-01 AS ECU specs for LS engine

#37208 from Gary Mathews · Rule change · TB 25-01 (2025-01 Fastrack)

Summary

fasterAS LS-engine cars gain ECU freedom; Camaro/Firebird 93-02 LS1 removes fuel cell location restriction.

As printed in Fastrack

In AS SPEC LINES, Cadillac CTS-V (04-07) Restricted Prep., change Notes as follows:
"Fuel cells must be located within 24 inches of the standard tank. The 24 inch measurement is taken from the perimeter of the
stock and alternative fuel cell. Fuel filler location is unrestricted with installation of a safety fuel cell. Tremec TR6060
Transmission with 3.0 1, 2.07, 1.43, 1.0, .84, .57 ratios permitted. 11” wide wheels can be used until 3/1/25. Any ECM may be
used."
In AS SPEC LINES, Chevrolet Camaro, Pontiac Firebird (70-81) Restricted Prep ., add to Notes as follows:
"Any ECM may be used."
In AS SPEC LINES, Chevrolet/Pontiac Camaro & Firebird (82-92) 5.7L V-8 LS1, add to Notes as follows:

Show 14 more lines

"Any ECM may be used."
In AS SPEC LINES, Chevrolet/Pontiac Camaro & Firebird (93-02) Restricted Prep.5.7L V-8 LT1, add to Notes as follows:
"Any ECM may be used."
In AS SPEC LINES, Chevrolet/Pontiac Camaro & Firebird (93-02) Restricted Prep. 5.7L V-8 LT1; 98-02 , change Notes as follows:
"5.7L LS1:
GM Performance Parts camshaft Kit P/N-19355738 is permitted. Cylinder Bore, 99 mm; Stroke, 92 mm; Intake Valve Diameter,
50.8; Exhaust Valve Diameter, 39.4 mm; Throttle Body Bore, 75 mm; SLP Intake Lid (SLP part number 21044 (98-99) and 21045
(00-02)) is permitted.
~~Fuel cells must be located within 24 inches of the standard tank. The 24 inch measurement is taken from the perimeter of the~~
~~stock and alternative fuel cell. Fuel filler location is unrestricted with installation of a safety fuel cell.~~
1-3/4 headers allowed. For the LS1connecting rods Callies P/NCSC6100DS6A2AH, Scat rods P/N2-1CR6100-944, GM performance
rods P/N12649190. Any ECM may be used."
In AS SPEC LINES, Chevrolet Camaro SS (V8) (10-15) Restricted Prep., add to Notes as follows:
"Any ECM may be used."

Applies to Chevrolet Camaro Z-28 on this page: Phillip Waters

2025-01-01 T4 Remove spec lines that have expired

#37269 from Touring Committee · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

removedT2, T3, T4 remove nine, nine, and thirty-six expired spec lines respectively, effective 2025-01-01.

As printed in Fastrack

In T2, Effective 1/1/2025, delete for following Spec Lines in their entirety:
"~~Acura TL SHAWD (10-13)~~
~~Audi S4 (12-14)~~
~~Audi S5 (13-14)~~
~~Audi TT RS (2018-)~~
~~Cadillac ATS-V (16-17)~~
~~Cadillac CTS-V (06-07)~~
~~Chevrolet Camaro SS (98-02)~~

Show 49 more lines

~~Honda Civic Type-R (2017-)~~
~~Saturn Sky / Convertible (07-09)~~"
In T3, Effective 1/1/2025, delete for following Spec Lines in their entirety:
"~~Audi TTS Coupe (10-11)~~
~~Cadillac ATS (2015)~~
~~Chevrolet Cobalt (05-07)~~
~~Dodge SRT-4 (03-05)~~
~~Ford Fiesta ST (2014-)~~
~~Hyundai Genesis Coupe (2010-)~~
~~Hyundai Veloster Turbo (18-21)~~
~~Mini Cooper S (2016-)~~
~~Toyota Camry (11-15)~~"
In T4, Effective 1/1/2025, delete for following Spec Lines in their entirety:
"~~Acura Integra GS-R VTEC (3 or 4 door) (94-01)~~
~~Audi A4 V-6 (96-01) / Volkswagen Passat 2.8 V6 (96-05)~~
~~Chevrolet Cobalt SS, Sport Coupe (06-10)~~
~~Chevrolet Sonic RS (2011-)~~
~~Chrysler/Dodge Neon ACR SOHC (4 door) (01-02)~~
~~Dodge Dart (14-15)~~
~~Dodge/Plymouth Neon ACR SOHC/DOHC (2/4 door) (95-99)~~
~~Fiat 500 Abarth (12-14)~~
~~Ford Focus SVT (02.5-04)~~
~~Ford Focus ZX4 ST (05-06)~~
~~Ford Focus (08-11)~~
~~Ford Mustang V-6 (01-04)~~
~~Honda Accord LX & EX (03-07)~~
~~Honda Accord LX-S/EX/EX-L (08-12)~~
~~Honda Civic Coupe Si (99-00)~~
~~Honda Civic SI (02-03)~~
~~Hyundai Elantra GLS (11-12)~~
~~Hyundai Tiburon V-6 (03-08)~~
~~Hyundai Veloster Turbo/ R-Spec (14-15)~~
~~Kia Forte Koup and Sedan LX/EX (10-13)~~
~~Kia Forte Koup and Sedan SX (10-13~~
~~Kia Forte Koup (14-15)~~
~~Mazda Protégé ES (2000)~~
~~Mazda Protégé 5 (02-03)~~
~~Mazda6 s (03-07)~~
~~Mitsubishi Eclipse GT (00-05)~~
~~Nissan Sentra SER (02-03)~~
~~Pontiac Firebird V-6 (96-02)~~
~~Scion tC (03-07)~~
~~Subaru Impreza (non-turbo) (04-06)~~
~~Toyota Celica GT (00-05)~~
~~Toyota Celica GTS/GT (00-05)~~
~~Volkswagen Golf TDI (2010)~~
~~Volkswagen Passat (12-14)~~
~~Volkswgen Passat TDI (12-14)~~
~~Volkswgen Passat 1.8T (2014-)~~"

2025-02-01 B-Spec Remove Redundant Language from Notes Sections

#37337 from B-Spec/C-Spec Committee · Rule change · TB 25-02 (2025-02 Fastrack)

Summary

wordingB-Spec Honda Fit AT, Fit CVT, Mazda2, Mini Cooper R50 MT and CVT, Toyota Yaris remove redundant notes language.

As printed in Fastrack

In B-Spec Spec Lines, Honda Fit AT (07-08), change Notes as follows:
"~~Allow damper and spring set 51600F23SA100, Damper FR LH 51605F23SA100, Damper FR RH 51606F23SA100, Damper RR~~
~~52610F23SA100, Spring adjust asy RR 52691F23SA010. Seat upper FR spring 51688F23SA200, 51402FC4YA00 front helper spring~~
~~and 51403FC4YA00 front spacer permitted. Front Damper Mount P/N 51920-F23S-A30 is allowed. Allow rear sway bar Progress~~
~~# 62.1060. Any Cold Air Intake Package allowed (any manufacturer). This configuration is not currently eligible for Runoffs~~
~~competition. This car must compete in three (3) separate Super Tour weekends so that performance data can be collected. In~~
~~addition to SCCA data box, OBDII data collected via an AIM or similar device must be submitted~~. Any aftermarket header
allowed. Allow rear sway bar Progress # 62.1060. Any Cold Air Intake Package allowed (any manufacturer). ~~This configuration is~~

Show 25 more lines

~~not currently eligible for Runoffs competition. This car must compete in three (3) separate Super Tour weekends so that~~
~~performance data can be collected. In addition to SCCA data box, OBDII data collected via an AIM or similar device must be~~
~~submitted.~~"
In B-Spec Spec Lines, Honda Fit CVT (15-19), change Notes as follows:
"Allow damper FR LH 51605F23SA81, Damper FR RH FR RH 51606F23SA81, Damper RR 52610F23SA80, Spring adjust assy RR
52691F23SA80, Camber Adjuster Comp, Damper 51920F23SA82. E~~xhaust pipe assy 18300F23SA81, ACG belt (6PK858)~~
~~31110FC4YA80~~. Allow rear sway bar Progress 62.1063. Allow Setrab 50- 119-7612 transmission cooler in addition to OEM."
In B-Spec Spec Lines, Mazda2 (10-14), change Notes as follows:
"~~Helper springs F&R 0000-04-9926, Spring spacer F&R 0000-04-9925,~~ Rear sway bar 0000-04-2203-RR or 0000-04-
2312, ~~Modified strut bearing plate 0000-04-2204, Crash bolt set 0000-04-2205,~~ Allow rear torque bar Corksport #Mz2-3-070.
Cold air intake Corksport Mz2-6-117-31100 and air duct Mz2-6-120-10 are allowed. Exhaust Header (cat delete) HB.EM 60-404-
S-SS, HP-MZD001, or Mazda Motorsports PN 0000- 06-2410 permitted. Powerflex PFR19-1511BX2 rear suspension bushings
allowed. Allow Mazda part number 0000-01-2501-CR Radiator. Allow Mazda undertray part number DO8C-56-110A, DO8C-56-
311, DO7A-56-321."
In B-Spec Spec Lines, Mini Cooper Hatchback (R50) MT (02-06), change Notes as follows:
"~~Allow KW: Coilover Kit: Variant 2: Gen 1 or KW equivalent, Vorshlag Mini R50/53 Camber Plates & Perches allowed.~~ Ride height
measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches. Allow rear
sway bar Progress #62.0210."
In B-Spec Spec Lines, Mini Cooper Hatchback (R50) CVT (02-06), change Notes as follows:
"~~Allow KW: Coilover Kit: Variant 2: Gen 1 or KW equivalent, Vorshlag Mini R50/53 Camber Plates & Perches allowed.~~ Ride height
measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches. Allow rear
sway bar Progress #62.0210.CVT equipped cars allow Setrab 50-119-7612 transmission cooler in addition to OEM."
In B-Spec Spec Lines, Toyota Yaris Hatchback (07-11), change Notes as follows:
"~~PTR04-52061 TRD Sport shocks permitted. PTR11-52070 TRD spring kit permitted.~~ Speed sensor may be disconnected. Cold air
intake K&N 69-8612TFK is allowed. Rear Swaybar PTR11-52071 is allowed~~. Any Camber plate is permitted.~~"

Applies to Honda Fit on this page: Blair Deffenbaugh, Luke Russell, Jason Grant, Eric Yagel, Daniel Wold

Applies to Mini Cooper on this page: Frank Schwartz, Conner Kelleher, Thomas Pendergrass, C. Lee Davis

Applies to Mini Hatchback on this page: Jacob New

Applies to Toyota Yaris on this page: Joseph Gersch

2025-02-01 T4 Ford Mustang V6 (05-14)

#37516 from Touring Committee · Rule change · TB 25-02 (2025-02 Fastrack)

Summary

wordingT4 Ford Mustang V6 (05-14) final drive set to 3.45, GT/CS front bumper cover permitted with front fascia.

As printed in Fastrack

In T4 Spec Lines, Ford Mustang V6 (05-14), change as follows:
Final drive: "3.45"
Notes: "GT/CS front bumper cover #AR3Z-17D957-BA, allowed if used with front fascia."

Applies to Ford Mustang on this page: Scotty B White, Paolo Salvatore

2025-02-01 B-Spec Expire designated spec lines

#37517 from B-Spec/C-Spec Committee · Rule change · TB 25-02 (2025-02 Fastrack)

Summary

removedB-Spec removes Mini Cooper Countryman R60, Cooper Paceman R61, and two Nissan Versa generations effective 2/1/25.

As printed in Fastrack

In B-Spec Spec Lines, delete the following spec lines effective 2/1/25 in their entirety:
"Mini Cooper Countryman (R60) (11-16)"
"Cooper Paceman (R61) (11-16)"
"Nissan Versa (07-11)"
"Nissan Versa (09-11)"

2025-02-01 B-Spec Set expiration date for Nissan Micra Cup Cars (Canadian)

#37519 from B-Spec/C-Spec Committee · Rule change · TB 25-02 (2025-02 Fastrack)

Summary

wordingB-Spec Nissan Micra Cup Car spec line expires 7/1/25 unless appeal submitted by 6/30/25.

As printed in Fastrack

In B-Spec Spec Lines, Nissan Micra Cup Car, add to Notes the following:
"This spec line will expire on 7/1/25 unless an appeal is submitted by 6/30/25."

2025-02-01 T4 Request to Classify Club Spec in Appropriate Touring Classes

#37523 from Andrew Benagh · Rule change · TB 25-02 (2025-02 Fastrack)

Summary

cars addedFord SCCA Club Spec Mustang classified T3 at 3350 lbs with driver; Mazda SCCA Club Spec MX-5 classified T4 at 2500 lbs with driver.

As printed in Fastrack

In T3 Spec Lines, classify Ford SCCA Club Spec Mustang (CSM) as follows:

A specification table follows in the original; it is not shown here.

Applies to Mazda MX-5 on this page: Marc Cefalo, Robert Spence, Kevin Fryer, Richard Mooney, Sergio Zlobin

2025-03-01 B-Spec Toyota Yaris Hatchback (12-18) rear disc brakes

#37530 from B-Spec/C-Spec Committee · Rule change · TB 25-03 (2025-03 Fastrack)

Summary

suspension & brakesB-Spec Toyota Yaris Hatchback 12-18 rear brakes now allow 10.2 inch disc alternative to 7.9 drum.

As printed in Fastrack

In B-Spec Spec Lines, Toyota Yaris Hatchback (12-18), please add to Brakes (inches) as follows:
"(F) 10.0 (R) 7.9 drum or 10.2 disc"

2025-03-01 B-Spec Yaris Speed Sensor

#37536 from B-Spec/C-Spec Committee · Rule change · TB 25-03 (2025-03 Fastrack)

Summary

wordingB-Spec Toyota Yaris Hatchback and Sedan may now disconnect speed sensor.

As printed in Fastrack

In B-Spec Spec Lines, Toyota Yaris Hatchback (12-18) AND Toyota Yaris Sedan (07-12), add to Notes the following:
"Speed sensor may be disconnected."

2025-03-01 B-Spec Set Expiration Date For Fiat 500

#37689 from B-Spec/C-Spec Committee · Rule change · TB 25-03 (2025-03 Fastrack)

Summary

wordingB-Spec Fiat 500 (12-17) spec line expires 1/1/26 unless appeal filed.

As printed in Fastrack

In B-Spec Spec Lines, Fiat 500 (12-17), please add to Notes the following language:
"This spec line will expire on 1/1/26 unless an appeal is filed."

2025-03-01 AS Race memo

#37902 from American Sedan Committee · Rule change · TB 25-03 (2025-03 Fastrack)

Summary

unclearAS Spec Lines removes ECM flexibility restriction from five Cadillac and Chevrolet/Pontiac V8 models.

As printed in Fastrack

In AS Spec Lines, change Notes as follows:
Cadillac CTS-V (04-07) Restricted Prep. 6.0L V8 (Aluminum block, Aluminum heads), LS2, 2 valves/cylinder:
"~~Any ECM maybe used.~~"
Chevrolet Camaro, Pontiac Firebird (70-81) Restricted Prep. 6.2L V8 (Aluminum Block, Aluminum Heads), 2 valves per cylinder:
"~~Any ECM maybe used.~~"
Chevrolet/Pontiac Camaro & Firebird (82-92)s 5.7L V-8 LS1 (Aluminum Block, Aluminum Heads) 2 valves per cylinder:
"~~Any ECM maybe used.~~"
Chevrolet/Pontiac Camaro & Firebird (93-02):

Show 3 more lines

"~~Any ECM maybe used.~~"
Chevrolet Camaro SS (V8) (10-15) Restricted Prep. 6.2L V8 (Aluminum Block, Aluminum Heads), 2 valves per cylinder:
"~~Any ECM maybe used.~~"

Atlanta Region SCCA Hoosier Super Tour @ Michelin Raceway Road Atlanta → Atlanta Region SCCA Hoosier Super Tour @ Michelin Raceway Road Atlanta 2025-03-07 to 2026-03-06

2025-04-01 AS Flotek Head Plunge Cut Inconsistencies

#37502 from Pamela Richardson · Rule change · TB 25-04 (2025-04 Fastrack)

Summary

unclearAS Flotek Head plunge cut dimensions figure updated in GCR Section 9.1.6.

As printed in Fastrack

In GCR, Section 9.1.6., replace Figure 1 Value Seat Cutting Dimensions with the following:

2025-04-01 B-Spec 2025 BOP Recommendations

#37520 from B-Spec/C-Spec Committee · Rule change · TB 25-04 (2025-04 Fastrack)

Summary

fasterB-Spec Honda Fit MT intake now limited to three models with 25lb adder; Mazda2 exhaust headers allowed with up to 50lb adder; Mini Coopers FPR increased 1-2 points; Nissan Versa sedans 40lbs lighter, Yaris models 50lbs lighter.

As printed in Fastrack

In B-SPEC Spec Lines, change as follows:
Honda Fit MT (09-14): "~~Any Cold Air Intake Package allowed (any manufacturer)~~ Allow Injen Intake SP1512, K&N Intake 69-
1017TTK, or HPS intake 827-102 with a 25lb adder."
Mazda2 (10-14): "Exhaust Header (cat delete) HB.EM 60-404-S-SS, HP-MZD001 allowed with a 50lb adder, or Mazda
Motorsports PN 0000- 06-2410 permitted with no weight adder."
Mini Cooper (R56) MT (07-10): "44 5 FPR (OE Catalyst)"
Mini Cooper (R56) AT (07-10): "46 7 FPR (OE Catalyst)"
Mini Cooper Clubman (R55) (07-10): "44 5 FPR (OE Catalyst)"

Show 7 more lines

Mini Cooper (R56LCI) MT (11-13): "43 4 FPR"
Mini Cooper (R56LCI) AT (11-13): "45 6 FPR (OE Catalyst)"
Mini Cooper Clubman (R55) (11-15): "42 4 FPR"
Nissan Versa Sedan (12-19): "~~2490~~ 2450" "Allow Injen intake SP1906"
Nissan Versa Hatchback (12-19): "~~2490~~ 2450" "Allow Injen intake SP1906"
Toyota Yaris Hatchback (12-18): "~~2400~~ 2350"
Toyota Yaris Sedan (07-12): "~~2400~~ 2350"

2025-04-01 B-Spec Hyundai/Toyota Factory Rear Disc Models

#37534 from B-Spec/C-Spec Committee · Rule change · TB 25-04 (2025-04 Fastrack)

Summary

wordingB-Spec Hyundai Accent and Toyota Yaris weight adjustments: ±25 lbs based on rear brake type.

As printed in Fastrack

In B-SPEC Spec Lines, add to Notes the following:
Hyundai Accent Hatchback (12-19): "Vehicles equipped with rear drum brakes subtract 25 lb."
Toyota Yaris Hatchback (12-18): "Vehicles equipped with rear disc brakes add 25 lb."

2025-04-01 AS Notes clean up

#37693 from American Sedan Committee · Rule change · TB 25-04 (2025-04 Fastrack)

Summary

wordingAS class notes cleanup: multiple Camaro, Firebird, CTS-V, Challenger, Mustang specs and fuel cell/ECM/head restrictions removed.

As printed in Fastrack

In AS Spec Lines, change/add to Notes as follows:
Cadillac CTS-V (04-07):
"~~Fuel cells must be located within 24 inches of the standard tank. The 24 inch measurement is taken from the perimeter of the~~
~~stock and alternative fuel cell. Fuel filler location is unrestricted with installation of a safety fuel cell. Any ECM maybe used.~~ The
Drive Shaft Shop, Axle shaft part #'s 510220/510221 permitted."
Chevrolet Camaro, Pontiac Firebird (70-81) Full Prep:
"~~Engine built to A/S Build Sheet specifications with the following: Head Casting #s: 14101081, 14014416 Port Volume (Max.): 081~~
~~casting: 170.00 cc IN/65.00 EX; 416 Casting 168.00cc IN/60.00 EX with a 250 lb. weight reduction. Edelbrock Cylinder Head Part~~

Show 88 more lines

~~#s 608979, 608879.~~"
Chevrolet Camaro, Pontiac Firebird (70-81) Restricted Prep.:
"~~Any ECM maybe used.~~"
Chevrolet/Pontiac Camaro & Firebird (82-92) Full Prep.:
"~~Engine built to A/S Build Sheet specifications with the following: Head Casting #s: 14101081, 14014416 Port Volume (Max.): 081~~
~~cast¬ing: 170.00 cc IN/65.00 EX; 416 Casting 168.00cc IN/60.00 EX with a 250 lb weight reduction. Edelbrock Cylinder Head Part~~
~~#s 608979, 608879 are permitted. For regional competition only, unmodified GM Performance cylinder head part #s 19300955,~~
~~19300956 may be used with Allstar restrictor plate part# ALL26180 and 1.250 inserts part# ALL26186 installed between intake~~
~~manifold and insulator. Gaskets may be used (each gasket can be no thicker than .125 inches), one on each side of the restrictor.~~
~~All intake air must pass through the inserts of the restrictor plate. Alternate gear ratio sets 2.88, 1.91, 1.33, 1.00 or 3.27, 1.98,~~
~~1.34, 1.00, 0.68 are permitted. Flo Tek Head part #102-500 are permitted.~~"
Chevrolet/Pontiac Camaro & Firebird (82-92) Restricted prep engine:
"~~Any ECM maybe used.~~"
Chevrolet/Pontiac Camaro & Firebird (93-02) Full Prep:
"~~Engine built to A/S Build Sheet specifications with the following: Head Casting #’s: 14101081, 14014416; Port Volume (Max.):~~
~~081 casting: 170.00 cc IN/65.00 EX; 416 Casting 168.00cc IN/60.00 EX with a 250 lb weight reduction. Edelbrock Cylinder Head~~
~~Part #’s 608979, 608879 are permitted. For regional competition only, unmodified GM Performance cylinder head part #s~~
~~19300955, 19300956 may be used with Allstar restrictor plate part# ALL26180 and 1.250 inserts part# ALL26186 installed~~
~~between intake manifold and insulator. Gaskets may be used (each gasket can be no thicker than .125 inches), one on each side~~
~~of the restrictor. All intake air must pass through the inserts of the restrictor plate. Alternate gear ratio sets 2.88, 1.91, 1.33, 1.00~~
~~or 3.27, 1.98, 1.34, 1.00, 0.68 are permitted. Fuel cells must be located within 24 inches of the standard tank. The 24 inch~~
~~measurement is taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with~~
~~installation of a safety fuel cell. Flo Tek Head part #102-500 are permitted.~~"
Chevrolet/Pontiac Camaro & Firebird (93-02) Restricted Prep:
"~~Fuel cells must be located within 24 inches of the standard tank. The 24 inch measurement is taken from the perimeter of the~~
~~stock and alternative fuel cell. Fuel filler location is unrestricted with installation of a safety fuel cell. Any ECM maybe used.~~"
Chevrolet Camaro SS (V8) (10-15) Restricted Prep:
"~~Fuel cells must be located within 24 inches of the standard tank. The 24 inch measurement is taken from the perimeter of the~~
~~stock and alternative fuel cell. Fuel filler location is unrestricted with installation of a safety fuel cell. Any ECM maybe used.~~"
Chevrolet Camaro (10-15) Full Prep:
"~~Engine built to A/S Build Sheet specifications with the following: Head Casting #’s: 14101081, 14014416; Port Volume (Max.):~~
~~081 casting: 170.00 cc IN/65.00 EX; 416 Casting 168.00cc IN/60.00 EX with a 200 lb weight reduction. Edelbrock Cylinder Head~~
~~Part #’s 608979, 608879 are permitted. Alternate gear ratio sets 2.88, 1.91, 1.33, 1.00 or 3.27, 1.98, 1.34, 1.00, 0.68 are~~
~~permitted. Fuel cells must be located within 24 inches of the standard tank. The 24-inch measurement is taken from the~~
~~perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with installation of a safety fuel cell. Flo Tek~~
~~Head part #102-500 are permitted. Fuel cells must be located within 24 inches of the standard tank. The 24 inch measurement is~~
~~taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with installation of a safety fuel~~
~~cell.~~"
Chevrolet Camaro (16-) Full Prep:
"~~Engine built to A/S Build Sheet specifications with the following: Head Casting #’s: 14101081, 14014416; Port Volume (Max.):~~
~~081 casting: 170.00 cc IN/65.00 EX; 416 Casting 168.00cc IN/60.00 EX with a 200 lb weight reduction. Edelbrock Cylinder Head~~
~~Part #’s 608979, 608879 are permitted, Flo Tek Head part #102-500 are permitted.~~"
Chevrolet Camaro, 1LE (16-):
"~~60mm flat plate restrictor required. Any ECM maybe used.~~"
Dodge Challenger (08-20) Restricted Preparation:
"~~80mm flat plate restrictor is required on the 6.4L engine. Fuel cells must be located within 24 inches of the standard tank. The~~
~~24 inch measurement is taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with~~
~~installation of a safety fuel cell.~~"
Ford Mustang Incl. Cobra & Cobra R (79-93) and Mercury Capri (79-86) Full Prep:
"~~Engine built to A/S Build Sheet specifications with the following: Head Casting #s: F3ZE AA (GT40), F1ZE-AA (GT-40), F77E-AA~~
~~(GT- 40P), Port Volume (Max.): 143.00cc IN/54.00cc EX (GT-40 & GT-40P) with a 250 lb weight reduction. Edelbrock Cylinder~~
~~Head Part #s 602579, 602479 are permitted. For regional competition only, unmodified Ford Performance cylinder head part #s~~
~~M-6049-Z304DA7, M-6049-Z304D may be used with Allstar restrictor plate part# ALL26180 and 1.250 inserts part# ALL26186~~
~~installed between intake manifold and insulator. Gaskets may be used (each gasket can be no thicker than .125 inches), one on~~
~~each side of the restrictor. All intake air must pass through the inserts of the restrictor plate. Alternate gear ratio sets 2.88, 1.91,~~
~~1.33, 1.00 or 3.27, 1.98, 1.34, 1.00, 0.68 are permitted. Flo Tek Part # 203-500 are permitted.~~"
Ford Mustang Incl. Cobra & Cobra R (79-93) and Mercury Capri(79-86) with Restricted Prep Engine:
"~~62mm flat plate restrictor is required. Fuel cells must be located within 24 inches of the standard tank. The 24 inch~~
~~measurement is taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with~~
~~installation of a safety fuel cell.~~ MMR Secondary Timing Chain Tensioner Bracket #467893 is permitted."
Ford Mustang Including Cobra 94-04 Full Prep:
"~~Engine built to A/S Build Sheet specifications with the following: Head Casting #s: F3ZE AA (GT40), F1ZE-AA (GT-40), F77E-AA~~
~~(GT- 40P), Port Volume (Max.): 143.00cc IN/54.00cc EX (GT-40 & GT-40P) with a 250 lb weight reduction. Edelbrock Cylinder~~
~~Head Part #s 602579, 602479 are permitted. For regional competition only, unmodified Ford Performance cylinder head part #s~~
~~M-6049-Z304DA7, M-6049-Z304D may be used with Allstar restrictor plate part# ALL26180 and 1.250 inserts part# ALL26186~~
~~installed between intake manifold and insulator. Gaskets may be used (each gasket can be no thicker than .125 inches), one on~~
~~each side of the restrictor. All intake air must pass through the inserts of the restrictor plate. Alternate gear ratio sets 2.88, 1.91,~~
~~1.33, 1.00 or 3.27, 1.98, 1.34, 1.00, 0.68 are permitted. Flo Tek Part # 203-500 are permitted.~~"
Ford Mustang GT (94-04) with Restricted Prep Engine:
"MMR Secondary Timing Chain Tensioner Bracket #467893 is permitted."
Ford Mustang Cobra and GT 94-95(Restricted Prep):
"~~1st Generation 5.0l Coyote 11-14 62mm FPR 2nd Generation 5.0l Coyote 15-17 61mm FPR Alternate transmission Ratios 3.66,~~
~~2.43, 1.69, 1.32, 1.00, .68.~~ MMR Secondary Timing Chain Tensioner Bracket #467893 is permitted."
Ford Mustang including Cobra 96-04 (Restricted Prep):
"~~1st Generation 5.0l Coyote 11-14 62mm FPR 2nd Generation 5.0l Coyote 15-17 61mm FPR Alternate transmission Ratios 3.66,~~
~~2.43, 1.69, 1.32, 1.00, .68.~~ MMR Secondary Timing Chain Tensioner Bracket #467893 is permitted."
Ford Mustang Coupe GT (05-14) Restricted Prep.:
"~~1st Generation 5.0l Coyote 11-14 62mm FPR 2nd Generation 5.0l Coyote 15-17 61mm FPR Alternate transmission Ratios 3.66,~~
~~2.43, 1.69, 1.32, 1.00, .68.~~ MMR Secondary Timing Chain Tensioner Bracket #467893 is permitted. MT82 6 speed is permitted."
Ford Mustang GT (05-14) with Restricted Prep Engine:
"~~1st Generation 5.0l Coyote 11-14 62mm FPR 2nd Generation 5.0l Coyote 15-17 61mm FPR Alternate transmission Ratios 3.66,~~
~~2.43, 1.69, 1.32, 1.00, .68.~~ MMR Secondary Timing Chain Tensioner Bracket #467893 is permitted. MT82 6 speed is permitted."
Ford Mustang GT 5.0l (15-17) Restricted Preparation:
"~~61mm flat plate restrictor required. Fuel cells must be located within 24 inches of the standard tank. The 24 inch measurement~~
~~is taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with installation of a safety~~
~~fuel cell.~~ MMR Secondary Timing Chain Tensioner Bracket #467893 is permitted."
Ford Mustang GT 5.0L (2018-):
"~~60mm flat plate restrictor required.~~ MMR Secondary Timing Chain Tensioner Bracket #467893 is permitted."

2025-04-01 B-Spec Request to Update the Spec line for Hyundai Accent and Kia Rio

#37880 from Alex Ratcliffe · Rule change · TB 25-04 (2025-04 Fastrack)

Summary

wordingB-Spec Hyundai Accent and Kia Rio (12-19) allow Bilstein B14 kit #47167490 front shocks and BabyFace Fabrication sump extension #BF-HYU-PAN.

As printed in Fastrack

In B-SPEC Spec Lines, add to Notes as follows:
Hyundai Accent Hatchback (12-19): "Bilstein B14 kit #4716 → 7490 front shocks verified compatible. Allow BabyFace Fabrication
sump extension #BF-HYU-PAN."
Kia Rio Hatchback (12-19): "Bilstein B14 kit #4716 → 7490 front shocks verified compatible. Allow BabyFace Fabrication sump
extension #BF-HYU-PAN."

2025-05-01 B-Spec Correct Hyundai/Kia Model Years

#37943 from B-Spec/C-Spec Committee · Rule change · TB 25-05 (2025-05 Fastrack)

Summary

wordingB-Spec Hyundai Accent Hatchback and Kia Rio Hatchback model year ranges corrected.

As printed in Fastrack

In B-Spec Spec Lines, correct model years as follows:
"Hyundai Accent Hatchback (12-19 7)"
"Kia Rio Hatchback (12-19 5)"

2025-05-01 B-Spec 07-08 Honda Fit MT Requests

#37974 from Caleb Patrie · Rule change · TB 25-05 (2025-05 Fastrack)

Summary

slowerB-Spec 07-08 Honda Fit MT minimum weight increases 50 lbs, to 2450.

As printed in Fastrack

In B-SPEC Spec Lines, Honda Fit MT (07-08), change as follows:
Minimum weight: "~~2400~~ 2450"
Notes: "OEM exhaust manifold required. Primary catalyst may be removed."

2025-05-01 SM Clarify Tire Marking Regs

#38005 from Greg Amy · Rule change · TB 25-05 (2025-05 Fastrack)

Summary

wordingSM cars limited to one set of Hoosier SM 7.5 P205/50/ZR17 per Super Tour event weekend for dry sessions.

As printed in Fastrack

In GCR Section 9.1.7.C.1.6.c., change as follows:
"1. ~~A mandatory impound for all SMX competitors will occur after the first dry qualifying or race session. All tires will be marked~~
~~for the remainder of the race weekend. It is the competitor’s responsibility to report to impound and ensure their tires are~~
~~marked prior to leaving impound.~~ SM cars are limited to one set of Hoosier SM 7.5 P205/50/ZR17 per Hoosier Super Tour event
weekend for all dry qualifying and race sessions. This limitation does not include testing or practice sessions. Approved rain tires
will not be required to be marked.
2. ~~A mandatory impound for all SM competitors is required after the first dry qualifying or race (if rain in qualifying) session. It is~~
~~the competitor’sresponsibility to ensure their tires are marked prior to going on track for the next session.~~ A mandatory impound

Show 10 more lines

for all SM competitors will occur after the first dry qualifying or race session. All tires will be marked for the remainder of the
race weekend. It is the competitor’s responsibility to report to impound and ensure their tires are marked prior to leaving
impound.
3. ~~If a competitor damages a tire or wheel, and there is a safety concern, the competitor must find the Hoosier Super Tour Series~~
~~Tech Chief or SM CCC, if assigned, for inspection. At the direction of the Hoosier Super Tour Series Tech Chief or SM CCC, the~~
~~competitor will be allowed to substitute alternate used tire(s) to replace the damaged tire(s). New tires are not an option as a~~
~~replacement tire for a damaged tire~~ If a competitor damages a tire or wheel and there is a safety concern, the competitor must
find the Hooseir Super Tour Series Tech Chief or SMX CCC, if assigned, for inspection. At the discretion of the Hoosier Super
Tour Series Tech Chief of SMX CCC the competitor may be allowed to substitute alternate used tires(s) to replace the damaged
tire(s). New tires are not an option as a replacement tire for a damaged tire."

2025-05-01 B-Spec Add B14 Kit Part # to Honda Fit (07-08) Spec line

#38010 from B-Spec/C-Spec Committee · Rule change · TB 25-05 (2025-05 Fastrack)

Summary

wordingHonda Fit 07-08 MT and AT approved for Bilstein B14 kit 47172401 in B-Spec.

As printed in Fastrack

In B-SPEC Spec Lines, Honda Fit (07-08) MT, add to Notes the following:
"Bilstein B14 kit 4717 → 2401 verified compatible."
In B-SPEC Spec Lines, Honda Fit (07-08) AT, add to Notes the following:
"Bilstein B14 kit 4717 → 2401 verified compatible."

2025-05-01 T4 Correct Ring and Pinion Ratio to T3, Sorry I Mean T4 3.7 V6 Stang

#38041 from David Mead · Rule change · TB 25-05 (2025-05 Fastrack)

Summary

wordingT4 Ford Mustang V6 05-14 allows GT 8.8 rear axle or 7.5 axle with 3.45:1 ratio.

As printed in Fastrack

In T4 Spec Lines, Ford Mustang V6 (05-14), add to Notes the following:
"GT 8.8 rear axle assembly allowed. 3.45 or 3.55 final drive ratio allowed. 7.5 rear axle assembly with 3.45:1 final drive allowed."

Applies to Ford Mustang on this page: Scotty B White, Paolo Salvatore

2025-05-01 AS Errors and Omission

#38055 from American Sedan Committee · Rule change · TB 25-05 (2025-05 Fastrack)

Summary

slowerAS Ford Mustang GT 5.0L (15-17) flat plate restrictor reduced from 67mm to 64mm.

As printed in Fastrack

In AS Spec Lines, Ford Mustang GT 5.0l (15-17), Flat Plate Restrictor Size, change as follows:
"~~67mm~~ 64mm"

2025-05-01 T4 T4 Mustang

#38058 from Scotty B White · Rule change · TB 25-05 (2025-05 Fastrack)

Summary

aeroT4 Ford Mustang V6 05-14 now permits OEM style rear deck spoiler similar to Laguna/CS packages.

As printed in Fastrack

In T4 Spec Lines, Ford Mustang V6 (05-14), add to Notes as follows:
"OEM style rear deck spoiler similar to Laguna/CS packages permitted.”

Applies to Ford Mustang on this page: Scotty B White, Paolo Salvatore

2025-05-01 AS Request to Add LS1/LS6 Intakes for 5.3L Truck Engine EnO

#38197 from Jim Clark · Rule change · TB 25-05 (2025-05 Fastrack)

Summary

wordingAS LS1/LS6 5.3L truck engine gains four approved intake part numbers: 12561269, 88894095, 89017363, 89017364.

As printed in Fastrack

In GCR, Section 9.1.6.F., add the following to Intake Part #’s:
"17113697, 19418185, 89017230, 89017363, 89017364, ~~and~~ 89017365, 12561269 and 88894095"

2025-06-01 B-Spec Add Sedan spec lines for Hyundai & Kia

#37537 from B-Spec/C-Spec Committee · Rule change · TB 25-06 (2025-06 Fastrack)

Summary

cars addedB-Spec adds Hyundai Accent Sedan (12-17) and Kia Rio Sedan (12-17), both 1591cc, 2525 lbs, 40mm FPR restrictor.

As printed in Fastrack

In B-SPEC Spec Lines, classify Hyundai Accent Sedan (12-17) as follows:
B-SPEC Bore x
Stroke(mm)
Displacement
(cc)
Gear Ratios Final

A specification table follows in the original; it is not shown here.

2025-06-01 B-Spec Shifter Bushing Questions.

#38048 from Eric Yagel · Rule change · TB 25-06 (2025-06 Fastrack)

Summary

wordingB-Spec Honda Fit MT 09-14 allows Acuity Shifter Base Bushing Kit 1954.

As printed in Fastrack

In B-SPEC Spec Lines, Honda Fit MT (09-14) add to Notes the following:
"Allow Acuity Shifter Base Bushing Kit 1954."

2025-06-01 T4 T4 Mustang

#38059 from Scotty B White · Rule change · TB 25-06 (2025-06 Fastrack)

Summary

fasterT4 Ford Mustang V6 05-14 weight drops from 3400 to 3300 lbs.

As printed in Fastrack

In T4 Spec Lines, Ford Mustang V6 (05-14), change as follows:
Final Drive: "3.45 or 3.31"
"Weight: "~~3400~~ 3300"

Applies to Ford Mustang on this page: Scotty B White, Paolo Salvatore

2025-06-01 T4 SSC tire allowance

#38216 from Benjamin Bunk · Rule change · TB 25-06 (2025-06 Fastrack)

Summary

tyres & wheelsT4 Scion FR-S and Subaru BRZ Solo Spec allow any 200TW 225/45/17 or 215/45/17 DOT tire.

As printed in Fastrack

In T4 Spec Lines, Scion FR-S Solo Spec Coupe (13-16), change Notes as follows:
"Any 200TW 225/45/17 or 215/45/17 DOT tire permitted."
In T4 Spec Lines, Subaru BRZ Solo® Spec Coupe (13-16), change Notes as follows:
"Any 200TW 225/45/17 or 215/45/17 DOT tire permitted."

Applies to Scion FR-S on this page: Jennifer Roames

Applies to Subaru BRZ on this page: Angelica Sprehe

2025-06-01 AS Errors and Omissions

#38234 from American Sedan Committee · Rule change · TB 25-06 (2025-06 Fastrack)

Summary

wordingAS Ford Mustang GT 05-14 Restricted Prep Engine gains alternative gear ratios: 3.66, 2.43, 1.69, 1.32, 1.00, .65

As printed in Fastrack

In AS Spec Lines, Ford Mustang GT (05-14) with Restricted Prep Engine, add to Gear Ratios the following:
"or 3.66, 2.43, 1.69, 1.32, 1.00, .65"

Applies to Ford Mustang on this page: Michael Kamalian, Thomas J Ellis, Gregory Eaton, James Jost

2025-06-01 SM SMX Data Submission - Penalties

#38248 from Kathy Barnes · Rule change · TB 25-06 (2025-06 Fastrack)

Summary

wordingSMX drivers must submit data acquisition files on time or face suspension and $250 fine.

As printed in Fastrack

In GCR, Section 9.1.7.1.23 add new level 5 infraction as follows:
Level: "5"
Infraction: "Failure to successfully submit (received by data@specmx-5.com) data acquisition file to data@specmx-5 per the
timeframes outlined in GCR section 9.1.7.1.20."
Penalty: "May suspend the driver (i.e. suspend) of the Spec MX-5 that failed to submit data on time or at all from competing in
SCCA events for the 3 months following the suspension.
A level 5 infraction may carry a $250.00 fine."

2025-06-01 B-Spec Add Weapon R Intake to Honda Fit MT (09-14) Spec Line

#38306 from B-Spec/C-Spec Committee · Rule change · TB 25-06 (2025-06 Fastrack)

Summary

wordingB-Spec Honda Fit AT 09-14 adds Weapon R Intake 301-166-301 to approved parts.

As printed in Fastrack

In B-SPEC Spec Lines, Honda Fit AT (09-14), add to Notes the following:
"Weapon R Intake 301-166-301"

2025-06-01 B-Spec Update Rule 46

#38307 from B-Spec/C-Spec Committee · Rule change · TB 25-06 (2025-06 Fastrack)

Summary

wordingB-Spec and C-Spec shift linkage/cables no longer prohibited from any modification; approved aftermarket bushings now permitted.

As printed in Fastrack

In GCR, Section 9.1.10.E.46. change as follows:
"Aftermarket shift knobs are allowed and shift levers mat y be bent or extended, however the shift linkage/cables must remain
stock and may not be modified ~~in any way~~. Approved aftermarket shift linkage bushings are permitted."

2025-06-01 SM Committee) SMX Penaly Clarification updated language

#38337 from Spec Mazda (SM/SMX · Rule change · TB 25-06 (2025-06 Fastrack)

Summary

wordingSMX penalty language clarified: level 1 and 3 infractions may carry $1,000 fine; level 2 and 4 may carry $500 fine.

As printed in Fastrack

In GCR, Section 9.1.7.1.23. change as follows:
Rename as follows: "~~Penalties Clarification – Non-Compliant Parts~~ SMX Penalty Guidelines"
Change the Penalty language for level 1 to the following: "A level 1 infraction ~~carries~~ may carry a $1,000 fine."
Change the penalty language for level 2 to the following: "A level 2 infraction ~~carries~~ may carry a $500 fine."
Change the penalty language for level 3 to the following: "A level 3 infraction ~~carries~~ may carry a $1,000 fine."
Change the penalty language for level 4 to the following: "A level 4 infraction ~~carries~~ may carry a $500 fine."

2025-07-01 AS RE: Previous Letter 37695 Update

#38245 from Michael Kamalian · Rule change · TB 25-07 (2025-07 Fastrack)

Summary

fasterAS Ford Mustang GT 5.0 2018- weight reduced from 3600 to 3525 lbs.

As printed in Fastrack

In AS Spec Lines, Ford Mustang GT 5.0 (2018-), change Weight as follows:
"~~3600~~ 3525"

Applies to Ford Mustang on this page: Michael Kamalian, Thomas J Ellis, Gregory Eaton

2025-07-01 T4 Allow B-Spec cars to run in T4

#38439 from Derrick Ambrose · Rule change · TB 25-07 (2025-07 Fastrack)

Summary

wordingT4 now permits B-Spec and C-Spec cars to compete in the class.

As printed in Fastrack

In GCR, Section 9.1.9.2, Touring car eligibility, change as follows:
"Touring car eligibility: Cars are eligible for the class they are listed with a specification line and with the specific allowances
permitted. In addition T2-T4 cars may race one class up in touring classes above their specification line class as long as they are a
legal T2-T4 car and conform to their specification line allowances as classified. Cars conforming to B-Spec or C-Spec rules are
permitted to compete in Touring 4."

2025-08-01 B-Spec Disabling 2 Pedal Shutdown

#38354 from Eric Yagel · Rule change · TB 25-08 (2025-08 Fastrack)

Summary

wordingB-Spec Honda Fit MT 09-14 two pedal shutdown may be disabled by cutting/de-pinning pin 42 BKSW at main ECU connector.

As printed in Fastrack

In B-Spec Spec Lines, Honda Fit MT (09-14), add to Notes the following:
"Two pedal shutdown may be disabled by cutting/de-pinning pin 42 (BKSW) at the main ECU connector in the engine bay."

Applies to Honda Fit on this page: Blair Deffenbaugh, Luke Russell, Jason Grant, Eric Yagel, Daniel Wold

2025-08-01 T4 Incorrect Touring Heading

#38451 from Terry Hanushek · Rule change · TB 25-08 (2025-08 Fastrack)

Summary

wordingT2, T3, T4 Spec Lines table header changed from T2 to ET.

As printed in Fastrack

In T2-T4 Spec Lines, change Table Header as follows:
"T2 ET"

2025-08-01 B-Spec Update Honda Fit MT (07-08) Intake Allowance

#38530 from B-Spec/C-Spec Committee · Rule change · TB 25-08 (2025-08 Fastrack)

Summary

slowerB-Spec Honda Fit MT 07-08 intake restricted to Injen SP1511 only, from any Cold Air Intake Package.

As printed in Fastrack

In B-Spec Spec Lines, Honda Fit MT (07-08), change Notes as follows:
"Bilstein B14 kit 47172401 verified compatible. Allow rear sway bar Progress #62.1060. A~~ny Cold Air Intake Package allowed (any~~
~~manufacturer).~~ Allow Injen Intake SP1511. This configuration is not currently eligible for Runoffs competition. This car must
compete in three (3) separate Super Tour weekends so that performance data can be collected. In addition to SCCA data box,
OBDII data collected via an AIM or similar device must be submitted. OEM exhaust manifold required. Primary catalyst may be
removed."

Applies to Honda Fit on this page: Blair Deffenbaugh, Luke Russell, Jason Grant, Eric Yagel, Daniel Wold

2025-09-01 B-Spec Remove Asterisk from Rule 9

#38768 from B-Spec/C-Spec Committee · Rule change · TB 25-09 (2025-09 Fastrack)

Summary

wordingB-Spec and C-Spec: asterisk removed from public road usage note in rule 9.1.10.D.9.

As printed in Fastrack

In GCR, Section 9.1.10.D.9, change as follows:
"* If car is used on public roads, these items should be replaced, reactivated, rearmed, etc. when not in competition."

2025-11-01 B-Spec Alternate Shift Cable Bushings and Rear Spring Seats

#38472 from Caleb Patrie · Rule change · TB 25-09 (2025-09 Fastrack)

Summary

wordingB-Spec Honda Fit MT 07-08 allows Torque Solution Shifter Cable Bushing kit TS-SCB-506.

As printed in Fastrack

In B-Spec Spec Lines, Honda Fit MT (07-08), add to Notes the following:
"(Effective 11/1/2025) Allow Torque Solution Shifter Cable Bushing kit TS-SCB-506."

Applies to Honda Fit on this page: Blair Deffenbaugh, Luke Russell, Jason Grant, Eric Yagel, Daniel Wold

2025-11-01 AS Cadillac CTS-V BOP Weight Change

#38640 from Alex Lozano · Rule change · TB 25-09 (2025-09 Fastrack)

Summary

fasterAS Cadillac CTS-V 04-07 Restricted Prep weight reduced 50 lbs to 3400.

As printed in Fastrack

In AS Spec Lines, Cadillac CTS-V (04-07) Restricted Prep., change Weight as follows:
"(Effective 11/1/2025) ~~3450~~ 3400"

2025-11-01 B-Spec Fiesta BOP Adjustment

#38847 from B-Spec/C-Spec Committee · Rule change · TB 25-09 (2025-09 Fastrack)

Summary

slowerB-Spec Ford Fiesta Hatchback and Sedan gain 55 lbs to 2525; restrictors increase 1 mm.

As printed in Fastrack

In B-Spec Spec Lines, Ford Fiesta Hatchback (11-19), change as follows:
Weight (lbs): "(Effective 11/1/2025) ~~2470~~ 2525"
Restrictor (mm) & Type: "(Effective 11/1/2025)~~39 FPR~~ 40 FPR"
In B-Spec Spec Lines, Ford Fiesta Sedan (11-19), change as follows:
Weight (lbs): "(Effective 11/1/2025) ~~2470~~ 2525"
Restrictor (mm) & Type: "(Effective 11/1/2025)~~38 FPR~~ 39 FPR"

2025-11-01 T4 02-06 Mini Cooper Gear Ratios

#38966 from Trenton Kramer · Rule change · TB 25-11 (2025-11 Fastrack)

Summary

unclearT4 Mini Cooper S R53 02-06 gear ratios changed to 12.79, 7.79, 5.65, 4.62, 3.83, 3.13 or 11.42, 7.18, 5.39, 4.40, 3.65, 2.96.

As printed in Fastrack

In T4 Spec Lines, Mini Cooper S R53 (02-06), change Gear Ratios as follows:
"12.79, 7.79, 5.65, 4.62, 3.83, 3.13 or overall- 11.42, 7.18, 5.39, 4.40, 3.65, 2.96"

2025-11-01 T4 Reinstatement of the 2005-2010 Cobalt into T4

#38987 from Tim Little · Rule change · TB 25-11 (2025-11 Fastrack)

Summary

cars addedChevrolet Cobalt SS Sport Coupe 06-10 reinstated to T4 with 2384cc engine, 2628 restrictor, 2700 lbs minimum weight.

As printed in Fastrack

In T4 Spec Lines, classify Chevrolet Cobalt SS, Sport Coupe (06-10) as follows:

A specification table follows in the original; it is not shown here.

2025-11-01 B-Spec Request to Remove Rear Shock From Spec Line Hyundai Accents/Kia

#39017 from Alex Ratcliffe · Rule change · TB 25-11 (2025-11 Fastrack)

Summary

unclearB-Spec Hyundai Accent and Kia Rio remove Bilstein B8 shock 33-187112 rear suspension approval.

As printed in Fastrack

In B-Spec Spec Lines, Hyundai Accent Sedan (12-17), change Notes as follows:
"~~Bilstein B8 shock 33- 187112 approved for use in rear suspension.~~"
In B-Spec Spec Lines, Kia Rio Sedan (12-17), change Notes as follows:
"~~Bilstein B8 shock 33- 187112 approved for use in rear suspension.~~"

2025-11-01 B-Spec Update Honda Fit MT (07-08) Runoffs Eligibility

#39060 from B-Spec/C-Spec Committee · Rule change · TB 25-11 (2025-11 Fastrack)

Summary

fasterB-Spec Honda Fit MT (07-08) becomes Runoffs-eligible; previous three-weekend Super Tour requirement removed.

As printed in Fastrack

In B-Spec Spec Lines, Honda Fit MT (07-08), change Notes as follows:
"Bilstein B14 kit 47172401 verified compatible. Allow rear sway bar Progress #62.1060. Allow Injen Intake SP1511 OEM exhaust
manifold required. Primary catalyst may be removed. ~~This configuration is not currently eligible for Runoffs competition. This car~~
~~must compete in three (3) separate Super Tour weekends so that performance data can be collected. In addition to SCCA data~~
~~box, OBDII data collected via an AIM or similar device must be submitted. (Effective 11/1/2025)~~ Allow Torque Solution Shifter
Cable Bushing kit TS-SCB-506."

Applies to Honda Fit on this page: Blair Deffenbaugh, Luke Russell, Jason Grant, Eric Yagel, Daniel Wold

2025-11-01 T4 Request to Classify Mercedes C230K

#39080 from Patrick Morgan · Rule change · TB 25-11 (2025-11 Fastrack)

Summary

cars addedMercedes C230 Kompressor 2002-2005 classified in T4 at 3240 lbs with 17-inch wheels and 300/290 mm brakes.

As printed in Fastrack

In T4 Spec Lines, classify Mercedes C230 Kompressor (2002-2005) as follows:

A specification table follows in the original; it is not shown here.

2025-11-01 T4 ND Gearset Request for T4

#39166 from Josh Smith · Rule change · TB 25-11 (2025-11 Fastrack)

Summary

wordingT3 and T4 Mazda MX-5 Miata models add approved gear kit PT#-0000-02-6100 to notes.

As printed in Fastrack

In T4 Spec Lines, Mazda MX5 Miata/Club/ RF (19-24), add to Notes the following:
"Gear kit Kit PT#- 0000-02-6100."
In T4 Spec Lines, Mazda MX-5 Miata/Club (16-18), add to Notes the following:
"Gear kit Kit PT#- 0000-02-6100."
In T3 Spec Lines, Mazda MX-5 Miata (16-18), add to Notes the following:
"Gear kit Kit PT#- 0000-02-6100."
In T3 Spec Lines, Mazda MX-5 Global Cup Miata (2016-2021) ND1, ND, add to Notes the following:
"Gear kit Kit PT#- 0000-02-6100."

Applies to Mazda Miata on this page: Jonathan Neudorf, Ethan Barker, Charles Habisreutinger, Ayden Rose

Applies to Mazda MX-5 on this page: Marc Cefalo, Robert Spence, Kevin Fryer, Richard Mooney, Sergio Zlobin

2025-11-01 T4 E&O wheel size on ND

#39168 from Josh Smith · Rule change · TB 25-11 (2025-11 Fastrack)

Summary

unclearT4 Mazda MX-5 Miata/Club 16-18 wheel size changed to 17 x 7.5 inches.

As printed in Fastrack

In T4 Spec Lines, Mazda MX-5 Miata/Club (16-18), change Wheel Size (in.) as follows:
"17 x 7.5"

Applies to Mazda Miata on this page: Jonathan Neudorf, Ethan Barker, Charles Habisreutinger, Ayden Rose

Applies to Mazda MX-5 on this page: Marc Cefalo, Robert Spence, Kevin Fryer, Richard Mooney, Sergio Zlobin

2025-11-01 T4 ND Spec Lines Wrong PT#'s

#39170 from Josh Smith · Rule change · TB 25-11 (2025-11 Fastrack)

Summary

wordingT4 Mazda MX-5 Miata/Club/RF (19-24) and (16-18) remove discontinued hardtop part #0000-07-5901; T3 MX-5 Miata (16-18) and Global Cup ND (16-21) same.

As printed in Fastrack

In T4 Spec Lines, Mazda MX5 Miata/Club/ RF (19-24), change Notes as follows:
"Factory bolt-in roll bar/ cross member may be removed to facilitate roll cage installation. The following item(s) must remain
stock: transmission differential unless specified below. Retractable hardtop option permitted but must be disabled from moving
action and positively fastened. Any OEM or aftermarket hardtop is permitted that retains the OEM roof silhouette, including
Mazda hardtop part #0000-07-5902-ND ~~and part #0000-07-5901 (discontinued DG Motorsports).~~ 29mm (f) 16mm (r) sway bars
allowed. 3rd and 4th gear may be replaced with the following parts- (0000-02-5803-02, 0000-02-5803-01, 0000-02-5804-02,
0000-02-5804-01). Suspension package permitted with a 100 lbs. weight increase that includes the following parts: front springs
#0000-04-9700-08, springs up to 500lb front and 300lb rear allowed. Mazda tower brace 0000-04-5626 allowed. Mazda header

Show 20 more lines

0000-06-5410 allowed."
In T4 Spec Lines, Mazda MX-5 Miata/Club (16-18), change Notes as follows:
"Factory bolt-in roll bar/ cross member may be removed to facilitate roll cage installation. Retractable hardtop option permitted
but must be disabled from moving action and positively fastened. Any OEM or aftermarket hardtop is permitted that retains the
OEM roof silhouette, including Mazda hardtop part #0000-07-5902-ND ~~and part #0000-07-5901 (discontinued DG Motorsports)~~.
29mm (f) 16mm (r) sway bars allowed. Up to 500lb front and 300lb rear springs allowed. Mazda Motorsports Header part
#0000-06-5410 allowed. Mazda tower brace 0000-04-5626 allowed. 3rd and 4th gear may be replaced with the following parts-
(0000-02-5803-02, 0000-02-5803-01, 0000-02-5804-02, 0000-02-5."
In T3 Spec Lines, Mazda MX-5 Miata (16-18), change Notes as follows:
"Factory bolt-in roll bar/ cross member may be removed to facilitate roll cage installation. Header permitted. Cold air intake
permitted. Front strut brace permitted. Front and rear sway bars permitted up to 35mm, Springs 800 front and 800 Rear max
permitted. Any OEM or aftermarket hardtop permitted that retains the OEM roof silhouette including Mazda hardtop part
#0000-07-5902- ND ~~and part #0000-07-5901 (discontinued DG Motorsports top).~~ If a hardtop is used, latches shall be replaced
with positive fasteners. Retractable hardtop option permitted but must be disabled from moving action and positively fastened.
In T3 Spec Lines, Mazda MX-5 Global Cup Miata (2016-2021) ND1, ND, change Notes as follows:
"Shoulder harness installation must conform to FIA mounting specifications that are approved for this vehicle per section 6.2 FIA
article 253, safety equipment. Must meet all ND2 MX-5 Global Cup rules. Any OEM or aftermarket hardtop is permitted that
retains the OEM roof silhouette, including Mazda hardtop Mazda hardtop part #0000-07-5902-ND and #0000-07-5902-ND ~~part~~
~~#0000- 07-5901 (discontinued DG Motorsports).~~ If a hardtop is used, latches shall be replaced with positive fasteners. OBD2
requirement does not apply. Ballast box may be removed. ND2s with sequential gearbox allowed +100 lbs.

Applies to Mazda Miata on this page: Jonathan Neudorf, Ethan Barker, Charles Habisreutinger, Ayden Rose

Applies to Mazda MX-5 on this page: Marc Cefalo, Robert Spence, Kevin Fryer, Richard Mooney, Sergio Zlobin

2025-11-01 T4 Touring 4 Post-Runoffs BOP Adjustments and Changes

#39251 from Touring Committee · Rule change · TB 25-11 (2025-11 Fastrack)

In T4 Spec Lines, Acura RSX/ RSX Type-S (02-06), change Restrictor as follows:
"~~55mm FPR~~"
In T4 Spec Lines, Acura TSX (2004-2008), change Restrictor as follows:
"~~47mm FPR~~ 52mm FPR"
In T4 Spec Lines, BMW Z4 2.5L (03-05) , change Weight as follows:
"~~3050~~ 2950"
In T4 Spec, BMW 320i (14-15), remove this spec line in its entirety.
In T4 Spec Lines, BMW 323 (98-00), change as follows:

Show 36 more lines

Tire size: "~~225~~ 245"
Weight: "~~3250~~ 3150"
In T4 Spec Lines, Ford Mustang V6 (05-14), change as follows:
Restrictor: "~~50mm~~ 43mm"
Weight: "~~3300~~ 3400"
In T4 Spec Lines, Honda Civic Si (06-11), change Restrictor as follows:
"~~55mm~~"
In T4 Spec Lines, Honda Civic Si (12-15), change as follows:
Restrictor: "~~47mm~~ 52mm
Notes: "~~Transmission and Differential must be stock.~~"
In T4 Spec Lines, Mazda MX-5 / Club Model (06-15), change as follows:
Weight: "~~2550~~ 2500"
Notes: "Factory bolt-in roll bar/cross member may be removed to facilitate roll cage installation. MSR option permitted.
Suspension package permitted with a 100 lbs. weight increase that includes the following parts: front spring mount PT#-0000-
04-5259, front springs #0000-04-9700-08, rear spring mount PT#-0000-04-5258, rear springs #0000- 04-9400-07, helper springs
#0000-04-HLPR-EB (optional), Swaybar kit – PT#-0000-04-5306-EB that includes (front sway bar kit PT#0000-04-5306-FT, rear
sway bar kit PT#-0000-04-5306-RR), offset front camber bushing PT#- 0000-04-5407-NC. Mazda Motorsports cold air intake part
#0000-06-5150-KT allowed. Mazda Motorsport RX8 rear Hub Conversion kit part number 0000-04-5811-KT allowed, RX8 front
hubs PT# F189-33-04X allowed. Allow Mazda header part numbers 0000-06-5407 or 0000-06-5407-NC. Any OEM or aftermarket
hardtop is permitted that retains the OEM roof silhouette, including Mazda hardtop and part #0000-07-5901-CC. Aftermarket
power steering reservoir is allowed. Mazda Transmission kit part # 0000-02-5700. Mazda Motorsports LSD #32655 permitted
without penalty. ~~Any other non-OEM limited slip differential allowed with +50 lbs. weight penalty.~~ Front spoiler permitted
(NF51-V4-900F). Transmission kit # 0000-02-57
In T4 Spec Lines, Pontiac Solstice / Saturn Sky (06-09), change as follows:
Weight: "~~2800~~ 2700"
Brakes: "(F) ~~296~~ 315 Vented Disc max (R) 278 Solid Disc"
Notes: "~~GM calipers #22720705, and #25900764 permitted~~"
In T4 Spec Lines, Scion FRS/10 series (13-16), change Weight as follows:
"~~2925~~ 2875"
In T4 Spec Lines, Subaru BRZ/ BRZ Limited (13-16), change Weight as follows:
"~~2925~~ 2875"
In T4 Spec Lines, Subaru BRZ (17-21), change Weight as follows:
"~~3000~~ 2950"
In T4 Spec Lines, Toyota 86, GT (17-21), change Weight as follows:
"~~3000~~ 2950"
SCCA Runoffs

Applies to Ford Mustang on this page: Scotty B White, Paolo Salvatore

Applies to Mazda MX-5 on this page: Marc Cefalo, Robert Spence, Kevin Fryer, Richard Mooney, Sergio Zlobin

Applies to Subaru BRZ on this page: Angelica Sprehe

2025-12-01 AS 1994 Mustang Spec Line Request

#39104 from Barry Borgschatz, Jr · Rule change · TB 25-12 (2025-12 Fastrack)

Summary

unclearAS Ford Mustang GT 94-04 Restricted Prep Engine now permits Ford Motorsport M-6250-F303 camshaft.

As printed in Fastrack

In AS Spec Lines, Ford Mustang GT(94-04) with Restricted Prep Engine, add to notes the following:
"Ford Motorsport #M-6250-F303 camshaft is permitted."

Applies to Ford Mustang on this page: Michael Kamalian, Thomas J Ellis, Gregory Eaton, James Jost

2025-12-01 T4 Classing 1995-99 Dodge Neon SOHC

#39285 from Preston Obremski · Rule change · TB 25-12 (2025-12 Fastrack)

Summary

cars addedDodge/Plymouth Neon ACR SOHC/DOHC 95-99 newly classified T4 at 2350 lbs minimum weight.

As printed in Fastrack

In T4 Spec Lines, classify Dodge/Plymouth Neon ACR SOHC/DOHC (2/4 door) (95-99) as follows:

A specification table follows in the original; it is not shown here.

2026-01-01 B-Spec Notes section cleanup

#39062 from B-Spec/C-Spec Committee · Rule change · TB 26-01 (2026-01 Fastrack)

Summary

wordingB-Spec Chevrolet Sonic and Ford Fiesta, Honda Fit notes reorganized from individual allowances to approved parts lists; wording cleanup.

As printed in Fastrack

In B-Spec Spec Lines, Chevrolet Sonic Sedan MT (12-19), change Notes as follows:
"~~GM suspension kit #23123679 permitted. Bilstein B14 kit #47-171725 verifed compatible. Allow rear sway bar ZZ Performance~~
~~#ZZ-SNCRSB. Allow Aluminum Radiator #ZZP-ZZ013. Allow Babyface Fabrication brake caliper piston SNC-SS.~~ Approved parts: ZZ
Performance rear sway bar ZZ-SNCRSB, ZZ Performance radiator ZZP-ZZ013, Babyface Fabrication brake caliper piston SNC-SS.
Bilstein B14 kit 47-171725 verified compatible."
In B-Spec Spec Lines, Chevrolet Sonic Sedan AT (12-19), change Notes as follows:
"~~GM suspension kit #23123679 permitted. Bilstein B14 kit #47-171725 verifed compatible. Allow rear sway bar ZZ Performance~~
~~#ZZ-SNCRSB. For automatic allow Setrab 1-series Part No. FP119M221. Allow Aluminum Radiator #ZZP-ZZ013. Allow Babyface~~

Show 185 more lines

~~Fabrication brake caliper piston SNC-SS.~~ Approved parts: ZZ Performance rear sway bar ZZ-SNCRSB, ZZ Performance radiator ZZP-
ZZ013, Babyface Fabrication brake caliper piston SNC-SS, Setrab transmission cooler 50-119-7612. Bilstein B14 kit 47-171725
verified compatible. This configuration is not currently eligible for Runoffs competition. This car must compete in three separate
Majors/Super Tour events so performance data can be collected. In addition to an SCCA data box, OBDII data collected via an
AIM or similar device must be submitted."
In B-Spec Spec Lines, Chevrolet Sonic Hatchback MT (12-19), change Notes as follows:
"~~GM suspension kit #23123679 permitted. Bilstein B14 kit #47-171725 verifed compatible. Allow rear sway bar ZZ Performance~~
~~#ZZ-SNCRSB. Allow Aluminum Radiator #ZZP-ZZ013. Allow Babyface Fabrication brake caliper piston SNC-SS.~~ Approved parts: ZZ
Performance rear sway bar ZZ-SNCRSB, ZZ Performance radiator ZZP-ZZ013, Babyface Fabrication brake caliper piston SNC-
SS. World Challenge suspension kit permitted but no longer available. Bilstein B14 kit 47-171725 verified compatible."
In B-Spec Spec Lines, Chevrolet Sonic Hatchback AT (12-19), change Notes as follows:
"~~GM suspension kit #23123679 permitted. Bilstein B14 kit #47-171725 verifed compatible. Allow rear sway bar ZZ Performance~~
~~#ZZ-SNCRSB. For automatic allow Setrab 1-series Part No. FP119M221. Allow Aluminum Radiator #ZZP-ZZ013. Allow Babyface~~
~~Fabrication brake caliper piston SNC-SS.~~ Approved parts: ZZ Performance rear sway bar ZZ-SNCRSB, ZZ Performance radiator ZZP-
ZZ013, Babyface Fabrication brake caliper piston SNC-SS, Setrab transmission cooler 50-119-7612. Bilstein B14 kit #47-171725
verified compatible. This configuration is not currently eligible for Runoffs competition. This car must compete in three separate
Majors/Super Tour events so performance data can be collected. In addition to an SCCA data box, OBDII data collected via an
AIM or similar device must be submitted."
In B-Spec Lines, Ford Fiesta Hatchback (11-19), change Notes as follows:
"~~Suspension kit #M-FR3-FAEB allowed. Rear axle bushing #000-04-2203-RR allowed. Allow rear torque bar Corksport #Mz2-3-~~
~~070. Cold air intake K&N 69-3530TS is allowed. Powerflex PFR19-1511BX2 rear suspension bushing allowed. Eibach rear sway bar~~
~~#35143.312 o r35143.320 is allowed. Mazda front hub D651-33-06 and rear hub D651-26-15XE allowed.~~ Approved parts: Eibach
rear sway bar 35143.312, Corksport rear torque bar MZ2-3-070, K&N intake 69-3530TS, Powerflex rear suspension bushing
PFR19-1511BX2, Mazda front hub D651-33-06, Mazda rear hub D651-26-15XE."
In B-Spec Spec Lines, Ford Fiesta Sedan (11-19), change Notes as follows:
"~~Suspension kit #M-FR3-FAEB allowed. Rear axle bushing #000-04-2203-RR allowed. Allow rear torque bar Corksport #Mz2-3-~~
~~070. Cold air intake K&N 69-3530TS is allowed. Powerflex PFR19-1511BX2 rear suspension bushing allowed. Eibach rear sway bar~~
~~#35143.312 o r35143.320 is allowed. Mazda front hub D651-33-06 and rear hub D651-26-15XE allowed.~~ Approved parts: Eibach
rear sway bar 35143.312, Corksport rear torque bar MZ2-3-070, K&N intake 69-3530TS, Powerflex rear suspension bushing
PFR19-1511BX2, Mazda front hub D651-33-06, Mazda rear hub D651-26-15XE."
In B-Spec Spec Lines, Honda Fit MT (07-08), change Notes as follows:
"~~Bilstein B14 kit 47172401 verified compatible. Allow rear sway bar Progress #62.1060. Allow Injen Intake SP1511 OEM exhaust~~
~~manifold required. Primary catalyst may be removed. Allow Torque Solution Shifter Cable Bushing kit TS-SCB-506.~~ Approved
parts: Progress rear sway bar 62.1060, Injen intake SP1511, Torque Solution shifter cable bushings TS-SCB-506. Bilstein B14 kit
47172401 verified compatible. OEM exhaust manifold required. Primary catalyst may be removed."
In B-Spec Spec Lines, Honda Fit AT (07-08), change Notes as follows:
"~~Bilstein B14 kit 47172401 verified compatible. Any aftermarket header allowed. Allow rear sway bar Progress # 62.1060. Any~~
~~Cold Air Intake Package allowed (any manufacturer).~~ Approved parts: Progress rear sway bar 62.1060, Injen intake SP1511,
Setrab transmission cooler 50-119-7612, any aftermarket header. Bilstein B14 kit 47172401 verified compatible."
In B-Spec Spec Lines, Honda Fit MT (09-14), change Notes as follows:
"~~Allow damper and spring set 51600F23SA100, Damper FR LH 51605F23SA100, Damper FR RH 51606F23SA100, Damper RR~~
~~52610F23SA100, Spring adjust asy RR 52691F23SA010. Seat upper FR spring 51688F23SA200, 51402FC4YA00 front helper spring~~
~~and 51403FC4YA00 front spacer permitted. Front Damper Mount P/N 51920-F23S-A30 is allowed. Allow rear sway bar Progress~~
~~# 62.1061 Allow Injen Intake SP1512, K&N Intake 69-1017TTK, or HPS intake 827-102 with a 25lb adder. Allow Acuity Shifter~~
~~Base Bushing Kit 1954 Two pedal shutdown may be disabled by cutting/de-pinning pin 42 (BKSW) at the main ECU connector in~~
~~the engine bay.~~ Approved parts: Progress rear sway bar #62.1061, Injen Intake SP1512, K&N Intake 69-1017TTK, or Weapon R
Intake 301-166-301, Acuity shifter bushing kit 1954. World Challenge suspension kit permitted but no longer available. Two pedal
shutdown may be disabled by cutting/de-pinning pin 42 (BKSW) at the main ECU connector in the engine bay."
In B-Spec Spec Lines, Honda Fit AT (09-14), change Notes as follows:
"~~Allow damper and spring set 51600F23SA100, Damper FR LH 51605F23SA100, Damper FR RH 51606F23SA100, Damper RR~~
~~52610F23SA100, Spring adjust asy RR 52691F23SA010. Seat upper FR spring 51688F23SA200, 51402FC4YA00 front helper spring~~
~~and 51403FC4YA00 front spacer permitted. Front Damper Mount P/N 51920-F23S-A30 is allowed. Allow rear sway bar Progress~~
~~# 62.1061. Allow Setrab 50-119-7612 transmission cooler in addition to OEM. Any aftermarket exhaust/header allowed. Any~~
~~Cold Air Intake Package allowed (any manufacturer). Weapon R Intake 301-166-301.~~ Approved parts: Progress rear sway bar
62.1061, Injen Intake SP1512, any aftermarket header, Setrab transmission cooler 50-119-7612. Two pedal shutdown may be
disabled by cutting/de-pinning pin 42 (BKSW) at the main ECU connector in the engine bay."
In B-Spec Spec Lines, Honda Fit MT (15-19), change Notes as follows:
"~~Allow damper FR LH 51605F23SA81, Damper FR RH FR RH 51606F23SA81, Damper RR 52610F23SA80, Spring adjust assy RR~~
~~52691F23SA80, Camber Adjuster Comp, Damper 51920F23SA82. Allow rear sway bar Progress 62.1063.~~ Approved parts: Progress
rear sway bar 62.1063."
In B-Spec Spec Lines, Honda Fit CVT (15-19), change Notes as follows:
"~~Allow damper FR LH 51605F23SA81, Damper FR RH FR RH 51606F23SA81, Damper RR 52610F23SA80, Spring adjust assy RR~~
~~52691F23SA80, Camber Adjuster Comp, Damper 51920F23SA82. Allow rear sway bar Progress 62.1063. Allow Setrab 50-119-~~
~~7612 transmission cooler in addition to OEM.~~ Approved parts: Progress rear sway bar 62.1063, Setrab transmission cooler 50-
119-7612. This configuration is not currently eligible for Runoffs competition. This car must compete in three separate
Majors/Super Tour events so performance data can be collected. In addition to an SCCA data box, OBDII data collected via an
AIM or similar device must be submitted."
In B-Spec Spec Lines, Hyundai Accent Hatchback (12-17), change Notes as follows:
"~~Allow AKSJ03-10-001 Damper Frt Assembly; AKSJ03-20-001 Damper-ASTRear; KSJ03-20-003 Rear Upper Spring Perch Delrin;~~
~~AKSJ03-60-001 Sump Pan Extension. Allow rear torque bar Evilla Motorsports #KR-B1. Bilstein B8 shock 33- 187112 approved for~~
~~use in rear suspension. Bilstein B14 kit #47167490 front shocks verified compatible. Allow BabyFace Fabrication sump extension~~
~~#BF-HYU-PAN Vehicles equipped with rear drum brakes subtract 25 lb.~~ Approved parts: Evilla Motorsports rear torque bar KR-B1,
BabyFace Fabrication sump extension BF-HYU-PAN. Vehicles equipped with rear drum brakes subtract 25 lbs."
In B-Spec Spec Lines, Hyundai Accent Sedan (12-17), change Notes as follows:
"~~Allow AKSJ03-10-001 Damper Frt Assembly; AKSJ03-20-001 Damper-AST-Rear; KSJ03-20- 003 Rear Upper Spring Perch Delrin;~~
~~AKSJ03-60-001 Sump Pan Extension. Allow rear torque bar Evilla Motorsports #KR-B1. Bilstein B8 shock 33-187112 approved for~~
~~use in rear suspension.~~ Approved parts: Evilla Motorsports rear torque bar KR-B1, BabyFace Fabrication sump extension BF-HYU-
PAN. Vehicles equipped with rear drum brakes subtract 25 lbs."
In B-Spec Spec Lines, Kia Rio Hatchback (12-15), change Notes as follows:
"~~Allow AKSJ03-10-001 Damper Frt Assembly; AKSJ03-20-001 Damper-AST-Rear; KSJ03-20- 003 Rear Upper Spring Perch Delrin;~~
~~AKSJ03-60-001 Sump Pan Extension. Allow rear torque bar Evilla Motorsports #KR-B1. Bilstein B14 kit #47167490 front shocks~~
~~verified compatible. Allow BabyFace Fabrication sump extension #BF-HYU-PAN Bilstein B8 shock 33-187112 approved for use in~~
~~rear suspension.~~ Approved parts: Evilla Motorsports rear torque bar KR-B1, BabyFace Fabrication sump extension BF-HYU-PAN.
World Challenge suspension kit permitted but no longer available."
In B-Spec Spec Lines, Kia Rio Sedan (12-17), change Notes as follows:
"~~Allow AKSJ03-10-001 Damper Frt Assembly; AKSJ03-20-001 Damper-AST-Rear; KSJ03-20- 003 Rear Upper Spring Perch Delrin;~~
~~AKSJ03-60-001 Sump Pan Extension. Allow rear torque bar Evilla Motorsports #KR-B1. Bilstein B8 shock 33-187112 approved for~~
~~use in rear suspension.~~ Approved parts: Evilla Motorsports rear torque bar #KR-B1, BabyFace Fabrication sump extension BF-HYU-
PAN."
In B-Spec Spec Lines, Mazda2 (10-14), change Notes as follows:
"~~Rear sway bar 0000-04-2203-RR or 0000-04-2312, Allow rear torque bar Corksport #Mz2- 3-070. Cold air intake Corksport Mz2-~~
~~6-117-31100 and air duct Mz2-6-120-10 are allowed. Exhaust Header (cat delete) HB.EM 60-404-S-SS, HP-MZD001, allowed with~~
~~a 50lb adder or Mazda Motorsports PN 0000-06-2410 with no weight adder permitted. Powerflex PFR19- 1511BX2 rear~~
~~suspension bushings allowed. Allow Mazda part number 0000-01-2501-CR Radiator. Allow Mazda undertray part number DO8C-~~
~~56-110A, DO8C-56-311, DO7A-56-321.~~ Approved parts: Mazda Motorsports rear sway bar 0000-04-2203-RR, Eibach/Mazda
Motorsports rear sway bar 35143.312/0000-04-2312, Corksport rear torque bar #MZ2- 3-070, Corksport intake MZ2-6-117-
31100, Corksport air duct MZ2-6-120-10, Powerflex PFR19-1511BX2 rear suspension bushings, Mazda Motorsports radiator
0000-01-2501-CR, Mazda Motorsports header 0000-06-2410, Mazda undertray/side shields DO8C-56-110A, DO8C-56-311, DO7A-
56-321."
In B-Spec Spec Lines, Mini Cooper Hatchback (R50) MT (02-06), change Notes as follows:
"~~Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches.~~
~~Allow rear sway bar Progress #62.0210.~~ Approved parts: Progress rear sway bar 62.0210, Mevotech leteral link CMK100003. Ride
height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches."
In B-Spec Spec Lines, Mini Cooper Hatchback (R50) CVT (02-06), change Notes as follows:
"~~Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches.~~
~~Allow rear sway bar Progress #62.0210.CVT equipped cars allow Setrab 50-119-7612 transmission cooler in addition to~~
~~OEM.~~ Approved parts: Progress rear sway bar 62.0210, Mevotech leteral link CMK100003, Setrab transmission cooler 50-119-
7612. Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5
inches."
In B-Spec Spec Lines, Mini Cooper (R56) MT (07-10), change Notes as follows:
"~~Allow L/F Strut-spring assembly 31 31 1 126, R/F Strut-spring assembly 31 31 1 125, Rear Shock-spring assembly 33 50 1 125.~~
~~Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches.~~
~~Adjustable front camber plate part number 31 30 1 507 is allowed. Allow rear sway bar Progress #62.0210. OBX header part #10-~~
~~2101-2S permitted.~~ Approved parts: Progress rear sway bar 62.0210, OBX header 10-2101-2S. Ride height measured from the
metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches.
In B-Spec Spec Lines, Mini Cooper (R56) AT (07-10), change Notes as follows:
"~~Allow L/F Strut-spring assembly 31 31 1 126, R/F Strut-spring assembly 31 31 1 125, Rear Shock-spring assembly 33 50 1~~
~~125.Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5~~
~~inches. Adjustable front camber plate part number 31 30 1 507 is allowed. Allow rear sway bar Progress #62.0210. OBX header~~
~~part #10-2101-2S permitted. Automatic equipped cars only allow Setrab 50-119-7612 transmission cooler in addition to~~
~~OEM.~~ Approved parts: Progress rear sway bar 62.0210, Setrab transmission cooler 50-119-7612. Ride height measured from the
metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches. This configuration is not currently
eligible for Runoffs competition. This car must compete in three separate Majors/Super Tour events so performance data can be
collected. In addition to an SCCA data box, OBDII data collected via an AIM or similar device must be submitted."
In B-Spec Spec Lines, Mini Cooper Clubman (R55) (07-10), change Notes as follows:
"~~Allow L/F Strut-spring assembly 31 31 1 126, R/F Strut-spring assembly 31 31 1 125, Rear Shock-spring assembly 33 50 1 125.~~
~~Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches.~~
~~Adjustable front camber plate part number 31 30 1 507 is allowed. Allow rear sway bar Progress #62.0210. OBX header part #10-~~
~~2101-2S permitted.~~ Approved parts: Progress rear sway bar 62.0210, OBX header 10-2101-2S. Ride height measured from the
metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches.
In B-Spec Spec Lines, Mini Cooper (R56LCI) MT (11-13), change Notes as follows:
"~~Allow L/F Strut-spring assembly 31 31 1 126, R/F Strut-spring assembly 31 31 1 125, Rear Shock-spring assembly 33 50 1 125.~~
~~Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches.~~
~~Adjustable front camber plate part number 31 30 1 507 is allowed. Allow rear sway bar Progress #62.0210.~~ Approved parts:
Progress rear sway bar 62.0210. Ride height measured from the metal underneath the bottom of the plastic door rocker molding
shall be no less than 5 inches."
In B-Spec Spec Lines, Mini Cooper (R56LCI) AT (11-13), change Notes as follows:
"~~Allow L/F Strut-spring assembly 31 31 1 126, R/F Strut-spring assembly 31 31 1 125, Rear Shock-spring assembly 33 50 1 125.~~
~~Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches.~~
~~Adjustable front camber plate part number 31 30 1 507 is allowed. Allow rear sway bar Progress #62.0210. OBX header part #10-~~
~~2101-2S permitted with 41mm FPR. Automatic equipped cars only allow Setrab 50- 119-7612 transmission cooler in addition to~~
~~OEM.~~ Approved parts: Progress rear sway bar 62.0210, Setrab transmission cooler 50-119-7612. Ride height measured from the
metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches. This configuration is not currently
eligible for Runoffs competition. This car must compete in three separate Majors/Super Tour events so performance data can be
collected. In addition to an SCCA data box, OBDII data collected via an AIM or similar device must be submitted."
In B-Spec Spec Lines, Mini Cooper Clubman (R55) (11-15), change Notes as follows:
"~~Allow L/F Strut-spring assembly 31 31 1 126, R/F Strut-spring assembly 31 31 1 125, Rear Shock-spring assembly 33 50 1 125.~~
~~Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches.~~
~~Adjustable front camber plate part number 31 30 1 507 is allowed. Allow rear sway bar Progress #62.0210.~~ Approved parts:
Progress rear sway bar 62.0210. Ride height measured from the metal underneath the bottom of the plastic door rocker molding
shall be no less than 5 inches."
In B-Spec Spec Lines, Mini Cooper Coupe (R58) (12-15), change Notes as follows:
"~~Allow L/F Strut-spring assembly 31 31 1 126, R/F Strut-spring assembly 31 31 1 125, Rear Shock-spring assembly 33 50 1 125.~~
~~Ride height measured from the metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches.~~
~~Adjustable front camber plate part number 31 30 1 507 is allowed. Allow rear sway bar Progress #62.0210.~~ Approved parts:
Progress rear sway bar 62.0210. Ride height measured from the metal underneath the bottom of the plastic door rocker molding
shall be no less than 5 inches."
In B-Spec Spec Lines, Nissan Versa Sedan (2012-2019), change Notes as follows:
"~~Hardrace HR-Q0146 19mm rear sway bar permitted. Allow Injen intake SP1906.~~ Approved parts: Hardrace rear sway bar HR-
Q0146, Injen intake SP1906."
In B-Spec Spec Lines, Nissan Versa Hatchback (2012-2019), change Notes as follows:
"~~Hardrace HR-Q0146 19mm rear sway bar permitted. Allow Injen intake SP1906.~~ Approved parts: Hardrace rear sway bar HR-
Q0146, Injen intake SP1906."
In B-Spec Spec Lines, Nissan Versa (2020-), change Notes as follows:
"~~This configuration is not currently eligible for Runoffs competition. This car must compete in three (3) separate Super Tour~~
~~weekends so that performance data can be collected. In addition to SCCA data box, OBDII data collected via an AIM or similar~~
~~device must be submitted.~~ This configuration is not currently eligible for Runoffs competition. This car must compete in three
separate Majors/Super Tour events so performance data can be collected. In addition to an SCCA data box, OBDII data collected
via an AIM or similar device must be submitted."
In B-Spec Spec Lines, Toyota/Scion IA Sedan (16-20), change Notes as follows:
"~~This configuration is not currently eligible for Runoffs competition. This car must compete in three (3) separate Super Tour~~
~~weekends so that performance data can be collected. In addition to SCCA data box, OBDII data collected via an AIM or similar~~
~~device must be submitted. Allow ST Suspension Kit 1327502.~~ Approved parts: ST suspension kit 1327502. This configuration is not
currently eligible for Runoffs competition. This car must compete in three separate Majors/Super Tour events so performance
data can be collected. In addition to an SCCA data box, OBDII data collected via an AIM or similar device must be submitted."
In B-Spec Spec Lines, Toyota Yaris Hatchback (07-11), change Notes as follows:
"~~Speed sensor may be disconnected. Cold air intake K&N 69-8612TFK is allowed. Rear Swaybar PTR11-52071 is allowed.~~
Approved parts: TRD rear sway bar PTR11-52071, K&N intake 69-8612TFK. Speed sensor may be disconnected."
In B-Spec Spec Lines, Toyota Yaris Hatchback (12-18), change Notes as follows:
"~~Rear Swaybar PTR11-52071 is allowed. Cold air intake K&N 69-8612TFK is allowed. Speed sensor may be disconnected. Vehicles~~
~~equipped with rear disc brakes add 25 lb.~~ Approved parts: TRD rear sway bar PTR11-52071, K&N intake 69-8612TFK. Speed
sensor may be disconnected. Vehicles equipped with rear disc brakes add 25 lbs."
In B-Spec Spec Lines, Toyota Yaris Sedan (07-12), change Notes as follows:
"~~Rear Swaybar PTR11-52071 is allowed. Cold air intake K&N 69-8612TFK is allowed. Speed sensor may be disconnected.~~
Approved parts: TRD rear sway bar PTR11-52071, K&N intake 69-8612TFK. Speed sensor may be disconnected."

Applies to Chevrolet Sonic on this page: Josh Schmidt, Stewart Black, Todd Blevins

Applies to Honda Fit on this page: Blair Deffenbaugh, Luke Russell, Jason Grant, Eric Yagel, Daniel Wold

Applies to Mini Cooper on this page: Frank Schwartz, Conner Kelleher, Thomas Pendergrass, C. Lee Davis

Applies to Mini Hatchback on this page: Jacob New

Applies to Nissan Versa Note on this page: Richard Osborne

Applies to Toyota Yaris on this page: Joseph Gersch

2026-01-01 T4 Alternate Placement of Fuse Panel and Electronics Request

#39370 from Aaron Stehly · Rule change · TB 26-01 (2026-01 Fastrack)

Summary

wordingT2, T3, T4 cars may relocate under-dash electronics and fuse boxes for access after roll cage installation.

As printed in Fastrack

In GCR, Section 9.1.9.2.D.9.d, add the following:
"8. Under-dash electronics including computers, modules and fuse boxes may be relocated so they can be easily accessed after
roll cage installation."

2026-01-01 B-Spec 2026 BOP Recommendations

#39475 from B-Spec/C-Spec Committee · Rule change · TB 26-01 (2026-01 Fastrack)

Summary

unclearB-Spec: Sonic restrictors removed, Fit MT +25 lbs to 2550, Fit CVT restrictor removed, Mini Coopers restrictors increased 2-4 mm, Versa sedans -25 lbs to 2425, Versa/IA restrictors removed.

As printed in Fastrack

In B-Spec Spec Lines, change as follows:
Chevrolet Sonic Sedan AT (12-19):
Restrictor (mm) & Type: "~~35 FPR~~"
Chevrolet Sonic Hatchback AT (12-19):
Restrictor (mm) & Type: "~~35 FPR~~"
Honda Fit MT (09-14):
Weight (lbs): "~~2525~~ 2550"
Honda Fit CVT (15-19):

Show 23 more lines

Restrictor (mm) & Type: "~~33 FPR~~"
Mini Cooper Hatchback (R50) MT (02-06):
Weight (lbs): "~~2545~~ 2525"
Mini Cooper (R56) MT (07-10):
Restrictor (mm) & Type: "FPR 45 47 OE Catalyst"
Mini Cooper (R56) AT (07-10):
Restrictor (mm) & Type: "4~~7 FPR (OE Catalyst) 42 FPR (Header)~~"
Mini Cooper Clubman (R55) (07-10):
Restrictor (mm) & Type: "FPR 45 47 OE Catalyst"
Mini Cooper (R56LCI) MT (11-13):
Restrictor (mm) & Type: "FPR 44 46"
Mini Cooper (R56LCI) AT (11-13):
Restrictor (mm) & Type: "4~~6 FPR (OE Catalyst) 41 FPR (Header)~~"
Mini Cooper Clubman (R55) (11-15):
Restrictor (mm) & Type: "~~FPR 44~~ 46"
Nissan Versa Sedan (2012-2019):
Min weight: "~~2450~~ 2425"
Nissan Versa Hatchback (2012-2019):
Min weight: "~~2450~~ 2425"
Nissan Versa (2020-):
Restrictor (mm) & Type: "~~38 FPR~~"
Toyota/Scion IA Sedan (16-20):
Restrictor (mm) & Type: "~~38 FPR~~"

2026-01-01 AS Restrictor Plate Change for Gen 2 Ford Coyote Engine

#39501 from American Sedan Committee · Rule change · TB 26-01 (2026-01 Fastrack)

Summary

slowerAS Ford Mustang Restricted Prep engines lose 3 mm restrictor plate, from 64 mm to 61 mm.

As printed in Fastrack

In AS Spec Lines, change Restrictor as follows:
Ford Mustang Incl. Cobra and Cobra R (79-93) and Mercury Capri (79-86) with Restricted Prep Engine: "~~64 mm~~ 61 mm"
Ford Mustang GT (94-04) with Restricted Prep Engine: "~~64 mm~~ 61 mm"
Ford Mustang Coupe GT (05-14) Restricted Prep 5.0L/6 speed 4 valves per cylinder: "~~64 mm~~ 61 mm"
Ford Mustang GT (05-14) with Restricted Prep Engine: "~~64 mm~~ 61 mm"
Ford Mustang GT 5.0L (15-17) Restricted Preparation: "~~64 mm~~ 61 mm"

2026-01-01 T4 Clarify T4 Brake Rotor Allowance

#39503 from David Mead · Rule change · TB 26-01 (2026-01 Fastrack)

Summary

suspension & brakesT4 Performance now permits 1-piece alternative rotors matching spec line sizes; alternate brake kits allowed same.

As printed in Fastrack

In GCR, Section 9.1.9.2.D.6.a.6., change as follows:
"In T2-Performance alternative rotors, including 2 piece rotors are permitted. Rotors must be within 5% of OE diameter or a
maximum diameter of 360mm.
In T3- Performance alternative rotors, including 2 piece rotors are permitted with a maximum diameter of 360mm.
T4- Performance alternative 1-piece rotors are permitted but rotors must meet the sizes listed in the spec line. Spec lines
showing alternate brake kits are also permitted to use 1-piece performance alternative rotors of the same size."

2026-01-01 B-Spec Expire NLA Mazda 2 Headers

#39582 from B-Spec/C-Spec Committee · Rule change · TB 26-01 (2026-01 Fastrack)

Summary

slowerB-Spec Mazda2 10-14 cat-delete header swap removes 50 lb weight adder option, now Mazda Motorsports PN only.

As printed in Fastrack

In B-Spec Spec Lines, Mazda2 (10-14), change Notes as follows:
"Exhaust Header (cat delete) ~~HB.EM 60-404-S-SS, HP-MZD001, allowed with a 50lb adder or~~ Mazda Motorsports PN 0000-06-
2410 with no weight adder permitted.”

2026-02-01 AS Edelbrock manifold (& timing kit) to Chevy LS Spec Lines Request

#39055 from Jason Smith · Rule change · TB 26-01 (2026-01 Fastrack)

Summary

cars addedAS Chevy LS adds Edelbrock Performer RPM 71187 intake manifold with MSD 6014 ignition and 4776 Holly carburetor as spec line option.

As printed in Fastrack

In GCR, Section 9.1.6.D.2.h.2., add the following:
"(Effective 2/1/2026) i. Weight based on full preparation chassis choice spec line for GM LM7 5.3L
Carburetor Option:
Must use the full prep 4776 holly carburetor and spacer gasket
Edelbrock Performer RPM 71187 intake manifold
MSD 6014 ignition box
(Edelbrock part # kit 7118)"

2026-02-01 T4 T4 and T3 Feedback

#39230 from Tim Myers · Rule change · TB 26-02 (2026-02 Fastrack)

Summary

removedFord Mustang V6 (05-14) removed from T4 Spec Lines.

As printed in Fastrack

In T4 Spec Lines, remove Ford Mustang V6 (05-14) in its entirety.

2026-02-01 T4 T4 Mustang 4.0

#39489 from Scotty B White · Rule change · TB 26-02 (2026-02 Fastrack)

Summary

fasterT4 Mustang 4.0 V6 tire size increases from 245 to 255.

As printed in Fastrack

In T4 Spec Lines, Ford Mustang V6 (05-10), change as follows:
Tire: "~~245~~ 255"
Notes: "ABS (option code 552) allowed. FR3 Handling Pack #M-2007-FR3V6 allowed (kit does not need to be run in its entirety).
The kit includes: Dampers M-18000-A, Lowering Springs M-5300-N, Sway Bars M- 5490-C, Strut Tower Brace M-20201-F. Ford
Positraction LSD part #M-4204-C75 is allowed. Any springs max F: 500 and R: 400 permitted. Any sway bar up to F: 35mm and R:
28mm permitted. Aftermarket Shocks conforming to T4 rules allowed. Panhard bar, part # BAR-M-4264-A permitted, or any pan
hard bar permitted must be set at same length as a stock bar, center mounting hole to center mounting hole +/- 0.25 inch. An
alternative steel drive shaft is permitted; this drive shaft is otherwise unrestricted, but no modifications to other components

Show 4 more lines

are permitted to facilitate its installation. An Aluminum driveshaft is allowed. Any LSD permitted. Ford brake kit M-2300-D
allowed. Aftermarket header allowed. GT 8.8 rear axle assembly allowed. ~~3.45 or 3.55~~ Alternate final drive ratio allowed. 7.5
rear axle assembly ~~with 3.45:1 final drive~~ allowed. Cold Air Intake allowed. Koni part numbers 8741-1494SPORT (front) and
8241-1240SPORT (rear). Spec clutch #SF661 and flywheel #SF66A permitted. 14” Brembo Brake Kit#M-2300-S permitted."

Applies to Ford Mustang on this page: Scotty B White, Paolo Salvatore

2026-02-01 T4 Allow Alt Bushing Material in Toe Links

#39607 from David Mead · Rule change · TB 26-02 (2026-02 Fastrack)

Summary

fasterT2-T4 adjustable toe links now allow performance alternative bushings and spherical bearings, previously prohibited except in specified examples.

As printed in Fastrack

In GCR, Section 9.1.9.D.5.a.1., change as follows:
"T2-T4: A maximum of 3.5 degrees of negative camber is allowed on front and rear suspensions. Spec line part(s) may not be
modified to increase caster and camber. Strut suspensions may adjust camber and caster by the use of eccentric bushings,
eccentric bolts (crash bolts) at the strut-to-spindle, and/or by use of slotted adjustment plates at the top of the strut mounting
plate. If upper strut slotted adjustment plates are used, they shall be located on existing chassis structure, utilizing the
unmodified manufacturer’s original bolt holes and may not serve as reinforcement for that structure. Slotted adjustment plates
(strut camber plates) may incorporate a single spherical bearing (spherical bushing) and a ball thrust bearing per strut tower. On
other forms of suspension, camber and caster adjustment may be achieved by the use of shims and/or eccentric

Show 4 more lines

bushings. ~~Adjustable toe links with spherical bearings are permitted and may serve no purpose other than adjusting toe~~
~~angle.~~ Adjustable toe links are permitted. They are allowed to have performance alternative bushings and spherical bearings.
They may serve no purpose other than adjusting toe angle. Spherical bearings/bushings are not permitted in T2-T4 except for the
specific examples listed in the class rules or vehicle spec line."

2026-02-01 B-Spec C-Spec Rear Sway Bars

#39652 from B-Spec/C-Spec Committee · Rule change · TB 26-02 (2026-02 Fastrack)

Summary

wordingC-Spec rear sway bars approved for Chevrolet Cruze, Dodge Dart, Ford Focus, Honda Civic, Mazda3i, Toyota Corolla with specified part numbers.

As printed in Fastrack

In C-Spec Spec Lines, change Notes as follows:
Chevrolet Cruze (2010-16):
"~~Allow BC Racing Q-06-BR suspension kit or RedShift Q-06-CSPEC. Allow Babyface Fabrication brake caliper piston SNC-~~
~~SS.~~ Approved parts: BC Racing Q-06-BR or RedShift Q-06-CSPEC suspension kit, Babyface Fabrication brake caliper piston SNC-
SS, ZZ Performance ZZ-SNCRSB or Whiteline BHR93 rear sway bar.
Dodge Dart (2014-16):
"~~Allow BC Racing or RedShift Z-06-CSPEC kit.~~ Approved parts: BC Racing Z-06-BR or RedShift Z-06-CSPEC kit, Progress rear sway
bar 62.0606."

Show 28 more lines

Ford Focus Hatchback/Sedan (2011-18):
"~~Allow BC Racing E-21-BR or RedShift E-21-CSPEC kit. Allow Corksport Axl-3-318-Black adjustable rear camber arms.~~ Approved
parts: BC Racing E-21-BR or RedShift E-21-CSPEC suspension kit, Corksport Axl-3-318-Black adjustable rear camber
arms, Corksport Axl-3-071-12, Eibach 35134.312, or Whiteline BMR78XZ rear sway bar."
Honda Civic Coupe/Sedan (2012-15):
"~~Allow BC Racing A-58-BR or RedShift A-18-CSPEC kit.~~ Approved parts: BC Racing A-58-BR or RedShift A-18-CSPEC suspension kit,
Progress 62.1026 or Megan Racing MRS-HA-0791 rear sway bar."
Honda Civic Coupe/Sedan (2006-11):
"~~Allow BC Racing A-18-BR or RedShift A-58-CSPEC kit.~~ Approved parts: BC Racing A-58-BR or RedShift A-18-CSPEC suspension kit,
Progress 62.1026 or Megan Racing MRS-HA-0791 rear sway bar."
Mazda3i SKYACTIV (2012-13):
"~~Allow BC Racing N-03-BR or RedShift N-03-CSPEC kit. Allow Corksport Axl-3-318-Black adjustable rear camber arms.~~ Approved
parts: BC Racing N-03-BR or RedShift N-03-CSPEC suspension kit, Corksport Axl-3-318-Black adjustable rear camber
arms, Corksport Axl-3-071-12, Eibach 35134.312, or Whiteline BMR78XZ rear sway bar."
Mazda 3i MZR (2010-13):
"~~Allow BC Racing N-03-BR or RedShift N-03-CSPEC kit. Allow Corksport Axl-3-318-Black adjustable rear camber arms.~~ Approved
parts: BC Racing N-03-BR or RedShift N-03-CSPEC suspension kit, Corksport Axl-3-318-Black adjustable rear camber
arms, Corksport Axl-3-071-12, Eibach 35134.312, or Whiteline BMR78XZ rear sway bar."
Mazda 3i (2004-09):
"~~Allow Corksport Axl-3-318-Black adjustable rear camber arms.~~ Approved parts: BC Racing N-03-BR or RedShift N-03-CSPEC
suspension kit, Corksport Axl-3-318-Black adjustable rear camber arms, Corksport Axl-3-071-12, Eibach 35134.312, or Whiteline
BMR78XZ rear sway bar."
Toyota Corolla (2007-12):
"~~Allow BC Racing C-02-BR or RedShift C-02-CSPEC kit.~~ Approved parts: BC Racing C-02-BR or RedShift C-02-CSPEC suspension kit,
TRD PTR11-12080 or Megan Racing MRS-TY-1710 rear sway bar."
Toyota Corolla (2013-18):
"~~Allow BC Racing C-02-BR or RedShift C-02-CSPEC kit.~~ Approved parts: BC Racing C-02-BR or RedShift C-02-CSPEC suspension
kit, TRD PTR11-12080 or Megan Racing MRS-TY-1710 rear sway bar."

2026-03-01 B-Spec Add Getrag GS5BG Transmisson Ratios for Mini R50

#39416 from Alex Ratcliffe · Rule change · TB 26-03 (2026-03 Fastrack)

Summary

unclearB-Spec Mini Cooper R50 MT gains approved Getrag GS5BG transmission with different gear and final drive ratios.

As printed in Fastrack

In B-Spec Spec Lines, Mini Cooper Hatchback (R50) MT (02-06), change as follows:
Gear Ratios: "Midland: 4.10, 2.37, 1.56, 1.17, 1.00 Getrag: 3.308, 1.913, 1.258, 0.943, 0.806"
Final drive: "Midland: 3.51 Getrag: 4.352"
Notes: "Approved parts: Progress rear sway bar 62.0210, Mevotech lateral link CMK100003. Ride height measured from the
metal underneath the bottom of the plastic door rocker molding shall be no less than 5 inches. Vehicles originally equipped with
a Midland transmission assembly may update to a Getrag transmission assembly."

Applies to Mini Cooper on this page: Frank Schwartz, Conner Kelleher, Thomas Pendergrass, C. Lee Davis

Applies to Mini Hatchback on this page: Jacob New

2026-03-01 B-Spec Exhaust Rules Update

#39669 from B-Spec/C-Spec Committee · Rule change · TB 26-03 (2026-03 Fastrack)

Summary

wordingB-Spec exhaust rules clarified: OEM or approved catalysts required unless spec line permits removal; downstream system free if routing and exit location match OEM.

As printed in Fastrack

In GCR, Section 9.1.10.E, change as follows:
"25. OEM or approved primary/upstream catalysts are required unless a vehicle’s spec line ~~has~~ lists an approved
header ~~listed~~ or is specifically permit~~ted~~ s to remove ing the catalyst. The primary/upstream oxygen sensor must be installed and
functional. Secondary oxygen sensors and catalysts may be removed. The exhaust system downstream of the primary
catalyst/approved header ~~may be replaced~~ is free provided the system retains the original routing and exits the body in the
approximate location(s) as the OEM system. Single exhaust systems that are cosmetically split into dual outlets may use a single
outlet. OEM heat shields and/or exhaust heat wrap may be used."

2026-03-01 B-Spec Please reinstate KW suspension for R56

#39727 from Aaron Fitzsimmons · Rule change · TB 26-03 (2026-03 Fastrack)

Summary

suspension & brakesB-Spec Mini Cooper R56 and R56LCI MT permitted to use World Challenge suspension kit.

As printed in Fastrack

In B-Spec Spec Lines, add to notes the following:
Mini Cooper (R56) MT (07-10):
"World Challenge suspension kit permitted."
Mini Cooper (R56LCI) MT (11-13):
"World Challenge suspension kit permitted."

2026-03-01 T4 ND MX-5 Spec Line Rewrite Request

#39802 from Josh Smith · Rule change · TB 26-03 (2026-03 Fastrack)

Summary

fasterT4 Mazda MX-5 19-24 drops 100 lbs to 2650; MX-5 16-18 drops 25 lbs to 2550.

As printed in Fastrack

In T4 Spec Lines, Mazda MX5 Miata/Club/ RF (19-24), change as follows:
Weight: "~~2750~~ 2650"
Notes: "Factory bolt-in roll bar/ cross member may be removed to facilitate roll cage installation. The following item(s) must
remain stock: transmission differential unless specified below. Retractable hardtop option permitted but must be disabled from
moving action and positively fastened. Any OEM or aftermarket hardtop is permitted that retains the OEM roof silhouette,
including Mazda hardtop part #0000-07-5902-ND. ~~29mm (f) 16mm (r) sway bars allowed. 3rd and 4th gear may be replaced with~~
~~the following parts- (0000-02- 5803-02, 0000-02-5803-01, 0000-02-5804-02, 0000-02-5804-01). Suspension package permitted~~
~~with a 100 lbs. weight increase that includes the following parts: front springs #0000-04-9700-08, s~~ Suspension

Show 19 more lines

Permitted: Springs up to 500lb front and 300lb rear allowed. 29mm (f) 16mm (r) sway bars allowed. Mazda tower brace 0000-
04-5626 allowed. Mazda header 0000-06-5410 allowed. Gear kit Kit PT#- 0000-02-6100. 3rd and 4th gear may be replaced with
the following parts- (0000-02- 5803-02, 0000-02-5803-01, 0000-02-5804-02, 0000-02-5804-01). OEM Club Package Brembo
calipers permitted. 2016-2018 chassis/body permitted."
In T4 Spec Lines, Mazda MX-5 Miata/ Club (16-18), change as follows:
Weight: "~~2575~~ 2550"
Notes: “~~Factory bolt-in roll bar/ cross member may be removed to facilitate roll cage installation. Retractable hardtop option~~
~~permitted but must be disabled from moving action and positively fastened. Any OEM or aftermarket hardtop is permitted that~~
~~retains the OEM roof silhouette, including Mazda hardtop part #0000-07-5902-ND 29mm (f) 16mm (r) sway bars allowed. Up to~~
~~500lb front and 300lb rear springs allowed. Mazda Motorsports Header part #0000-06-5410 allowed. Mazda tower brace 0000-~~
~~04-5626 allowed. 3rd and 4th gear may be replaced with the following parts- (0000-02-5803-02, 0000-02-5803-01, 0000-02-~~
~~5804-02, 0000-02-5804- 01). Gear kit Kit PT#- 0000-02-6100~~ Factory bolt-in roll bar/ cross member may be removed to facilitate
roll cage installation. The following item(s) must remain stock: transmission differential unless specified below. Retractable
hardtop option permitted but must be disabled from moving action and positively fastened. Any OEM or aftermarket hardtop is
permitted that retains the OEM roof silhouette, including Mazda hardtop part #0000-07-5902-ND. Suspension Permitted: Springs
up to 500lb front and 300lb rear allowed. 29mm (f) 16mm (r) sway bars allowed. Mazda tower brace 0000-04-5626 allowed.
Mazda header 0000-06-5410 allowed. Gear kit Kit PT#- 0000-02-6100. 3rd and 4th gear may be replaced with the following
parts- (0000-02- 5803-02, 0000-02-5803-01, 0000-02-5804-02, 0000-02-5804-01). OEM Club Package Brembo calipers
permitted."

Applies to Mazda Miata on this page: Jonathan Neudorf, Ethan Barker, Charles Habisreutinger, Ayden Rose

Applies to Mazda MX-5 on this page: Marc Cefalo, Robert Spence, Kevin Fryer, Richard Mooney, Sergio Zlobin

2026-03-01 B-Spec Add approved replacement catalysts

#39817 from B-Spec/C-Spec Committee · Rule change · TB 26-03 (2026-03 Fastrack)

Summary

wordingB-Spec adds approved Walker replacement catalysts for eight car models.

As printed in Fastrack

In B-Spec Spec Lines, add to Notes the following:
Sonic (All): “WALKER 16657”
Fiesta (All): “WALKER 16610”
Fit (09-14): “WALKER 16706”
Fit (15-19): “WALKER 16947”
Accent (All): “WALKER 16680”
Rio (All): “WALKER 16680”
Mini R50 (02-05): “WALKER 14716”

Show 1 more lines

Mini (All R56, R56 LCI, Coupe, and Clubman): “WALKER 16650”

2026-03-01 B-Spec Yaris/Versa catalyst removal

#39818 from B-Spec/C-Spec Committee · Rule change · TB 26-03 (2026-03 Fastrack)

Summary

fasterB-Spec Nissan Versa and Toyota Yaris sedans and hatchbacks may remove primary catalyst with OEM exhaust manifold.

As printed in Fastrack

In B-Spec Spec Lines, add to Notes the following:
Nissan Versa Sedan (2012-2019):
"OEM exhaust manifold required. Primary catalyst may be removed."
Nissan Versa Hatchback (2012-2019):
"OEM exhaust manifold required. Primary catalyst may be removed."
Toyota Yaris Hatchback (07-11):
"OEM exhaust manifold required. Primary catalyst may be removed."
Toyota Yaris Hatchback (12-18):

Show 3 more lines

"OEM exhaust manifold required. Primary catalyst may be removed."
Toyota Yaris Sedan (07-12): Approved parts:
"OEM exhaust manifold required. Primary catalyst may be removed."

2026-03-01 T4 4.0 Mustang spec line cleanup

#39831 from David Mead · Rule change · TB 26-03 (2026-03 Fastrack)

Summary

wordingT4 Ford Mustang V6 (05-10) suspension and brake options simplified; fewer specific part numbers required.

As printed in Fastrack

In T4 Spec Lines, Ford Mustang V6 (05-10), change Notes as follows:
"~~ABS (option code 552) allowed. FR3 Handling Pack #M-2007-FR3V6 allowed (kit does not need to be run in its entirety). The kit~~
~~includes: Dampers M-18000-A, Lowering Springs M-5300-N, Sway Bars M- 5490-C, Strut Tower Brace M-20201-F. Ford~~
~~Positraction LSD part #M-4204-C75 is allowed. Any springs max F: 500 and R: 400 permitted. Any sway bar up to F: 35mm and R:~~
~~28mm permitted. Aftermarket Shocks conforming to T4 rules allowed. Panhard bar, part # BAR-M-4264-A permitted or any pan~~
~~hard bar permitted must be set at same length as a stock bar, center mounting hole to center mounting hole +/- 0.25 inch. An~~
~~alternative steel drive shaft is permitted; this drive shaft is otherwise unrestricted, but no modifications to other components~~
~~are permitted to facilitate its installation. An Aluminum driveshaft is allowed. Any LSD permitted. Ford brake kit M-2300-D~~

Show 8 more lines

~~allowed. Aftermarket header allowed. GT 8.8 rear axle assembly allowed. 3.45 or 3.55 final drive ratio allowed. 7.5 rear axle~~
~~assembly with 3.45:1 final drive allowed. Cold Air Intake allowed. Koni part numbers 8741-1494SPORT (front) and 8241-~~
~~1240SPORT (rear). Spec clutch #SF661 and flywheel #SF66A permitted. 14” Brembo Brake Kit#M-2300-S permitted~~ Any springs
max F: 500 and R: 400 permitted, Any sway bar up to F: 35mm and R: 28mm permitted. Any pan hard bar permitted must be set
at same length as a stock bar, center mounting hole to center mounting hole +/- 0.25 inch. Any alternate metal driveshaft is
allowed. Ford brake kit M-2300-D allowed. 14” Brembo Brake Kit#M-2300-S permitted with OEM 355mm rotors
allowed. Aftermarket header allowed. Cold Air Intake allowed. S197 Mustang 8.8 or 7.5 rear axle allowed with any ratio. Spec
clutch #SF661 and flywheel #SF66A permitted."

Applies to Ford Mustang on this page: Scotty B White, Paolo Salvatore

2026-03-01 AS Re-Organization of AS Spec lines for 2026

#39887 from American Sedan Committee · Rule change · TB 26-03 (2026-03 Fastrack)

Summary

wordingAS class Spec Lines reorganized for 2026; old table format with chassis, engine, weight, tire, and brake data deleted and moved to main rules and build sheets.

As printed in Fastrack

This AS Spec Lines re-organization simplifies the Spec Lines for all drivers. This version gives the chassis information on what
engines can be put in their cars. It removes information that is now repeated in the ruleset and adds engine/weight combos as
well as wheelbase/tire size information. The Notes in the Spec Lines have been reviewed to remove information now listed in
the engine build sheets and retain information pertinent to the chassis selected. Where there is nothing in the notes, it is not an
error. It just means everything a driver needs is now in the main rules or the build sheets.
In AS Spec Lines, delete current Spec Line in its entirety as follows:

A specification table follows in the original; it is not shown here.

What the rules allowed changed as listed; this does not say what any particular car ran.