BoP Labbeta

BoP Lab / Michelin Raceway Road Atlanta

B-Spec + SM + SMX + FV at Michelin Raceway Road Atlanta

Class · click a class to switch, + to compare alongside
Events

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).

One lap is left out as timing errors (far too short to be a lap of this track). The rest of those sessions, sectors included, is used.

PosCarDriverClass#LapTheoreticalQualRace5-lap stintConsistencyTrapS1S2S3
1Mazda MX-5Tyler GonzalesSMX571:24.667 A-R11:24.6671:24.667 A-R11:40.882 A-R1+16.379 A-R1119.5 A-R237.882 A-R136.844 A-R225.719 A-R2
2Mazda MX-5 (2006)Skyler Cottrell 2+ cars >115%SMX9, 091:38.501 B-P1:38.3921:38.940 A-Q11:38.765 B-R21:39.287 B-R2+0.825 B-R2119.0 A-Q137.403 A-Q235.950 B-P25.039 B-Q2
3Mazda MX-5 (2002)Jarrett Jones 2+ cars >115%SMX861:38.517 A-Q21:38.4991:38.517 A-Q21:40.037 A-R11:40.292 A-R1+0.518 A-R1120.4 A-Q137.557 A-Q235.938 A-Q225.004 A-Q1
4Mazda MX-5 (2007)Camden Gruber >115%SMX241:38.662 B-Q11:38.3241:38.662 B-Q11:39.308 B-R21:39.545 B-R2+0.514 B-R2120.5 A-Q137.437 B-Q135.817 B-P25.070 B-Q1
5Mazda MX-5 (2010)Matthew Novak 2+ cars >115%SMX111:38.720 B-Q21:38.3821:38.720 B-Q21:39.231 B-R21:39.301 B-R2+0.302 B-R2114.0 B-P, B-R237.382 B-Q235.925 B-P25.075 B-Q2
6Mazda MX-5 (2006)Marcello Paniccia >115%SMX101:38.788 B-Q21:38.7271:38.788 B-Q21:39.297 B-R21:39.428 B-R2+0.645 B-R2114.4 B-R237.322 B-Q236.188 B-Q225.217 B-R2
7Mazda MX-5 (2012)Cam Ebben >115%SMX56, 551:38.821 B-Q11:38.5261:38.821 B-Q11:39.428 B-R21:39.825 B-R2+0.745 B-R2117.0 B-Q137.373 B-Q136.055 B-P25.098 B-P
8Mazda MX-5 (2013)Logan Stretch 2+ cars >115%SMX981:38.829 B-Q11:38.4511:38.829 B-Q11:39.318 B-R21:39.449 B-R2+0.461 B-R2115.5 B-P37.469 B-Q235.957 B-P25.025 B-P
9Mazda MX-5 (2014)Rocco Pasquarella >115%SMX195, 951:38.941 B-R21:38.6291:39.338 B-Q11:38.941 B-R21:39.219 B-R2+0.586 B-R2114.2 B-R237.345 B-Q136.171 B-R225.113 B-Q1
10Mazda MX-5 (2008)Michael Tinis >115%SMX261:38.964 C-Q11:38.8301:38.964 C-Q11:39.255 B-R21:39.511 B-R2+0.770 B-R2118.9 A-Q237.577 B-R236.013 C-Q125.240 C-Q1
11Mazda MX-5 (2006)Ethan Jacobs >115%SMX1991:38.973 B-Q21:38.6011:38.973 B-Q21:39.056 B-R21:39.515 B-R2+0.796 B-R2115.3 B-Q137.478 B-Q135.974 C-Q125.149 B-R2
12Mazda MX-5 (2006)Luke Pullen 2+ cars >115%SMX271:38.975 B-Q21:38.8571:38.975 B-Q21:39.470 B-R21:39.645 B-R2+0.426 B-R2114.0 B-P, B-Q1, B-R237.463 B-Q236.200 B-R225.194 B-Q1
13Mazda MX-5 (2006)Aryton Grim >115%SMX55, 211:38.981 B-Q21:38.7121:38.981 B-Q21:39.775 B-R21:39.836 B-R2+0.425 B-R2113.7 B-R137.450 B-Q236.080 B-P25.182 B-P
14Mazda MX-5 (2006)Kamden Hibbitt >115%SMX321:38.984 B-Q21:38.6731:38.984 B-Q21:39.358 B-R21:39.778 B-R2+0.878 B-R2115.8 C-R237.511 B-R236.088 C-Q125.074 B-Q2
15Mazda MX-5 (2013)Lincoln Larson >115%SMX161:39.116 A-Q21:38.7941:39.116 A-Q21:40.083 A-R11:40.246 A-R1+0.767 A-R1120.2 A-R137.464 A-Q236.028 A-Q225.302 A-Q2
16Mazda MX-5 (2015)Sebastian Mateo Naranjo >115%SMX11:39.138 B-Q21:38.8071:39.138 B-Q21:39.504 B-R21:39.785 B-R2+0.879 B-R2115.0 B-Q237.516 B-Q236.079 B-Q225.212 B-Q1
17Mazda MX-5 (2007)Will Lucas >115%SMX1341:39.180 B-P1:39.1101:39.947 B-Q21:40.803 B-R21:41.104 B-R2+0.968 B-R2113.6 C-Q137.818 B-P36.089 B-P25.203 B-Q2
18Mazda MX-5 (2006)Weston Duchak >115%SMX401:39.217 A-Q21:39.1701:39.217 A-Q21:39.976 A-R11:40.263 A-R1+0.910 A-R1119.9 A-Q137.618 A-Q236.339 A-Q225.213 A-Q2
19Mazda MX-5 (2008)Will Robusto >115%SMX11:39.228 C-Q11:39.0531:39.228 C-Q11:39.924 C-R21:58.773 C-R2+16.279 C-R2115.0 C-R237.573 C-Q236.188 C-Q125.292 C-Q1
20Mazda MX-5Elivan Goulart >115%SMX291:39.246 A-Q21:39.2381:39.246 A-Q21:40.857 A-R1120.7 A-Q237.858 A-Q235.937 A-Q225.443 A-R1
21Mazda MX-5 (2006)Cooper Hicks >115%SMX861:39.280 B-Q21:39.1701:39.280 B-Q21:39.990 B-R21:40.173 B-R2+0.469 B-R2114.0 B-P37.723 B-Q236.214 B-P25.233 B-P
22Mazda MX-5 (2006)Mitchell Lowry >115%SMX2, 211:39.284 A-Q21:39.0411:39.284 A-Q21:39.965 B-R21:40.841 B-R2+1.311 B-R2119.0 A-R137.688 A-Q235.996 A-Q225.357 B-Q2
23Mazda MX-5 (2011)Michelle Squirek >115%SMX751:39.286 A-Q21:39.1281:39.286 A-Q21:40.039 A-R11:40.245 A-R1+0.728 A-R1120.2 A-R137.590 A-Q236.246 A-Q225.292 A-Q2
24Mazda MX-5 (2015)Jack Murchison 2+ cars >115%SMX1581:39.307 C-Q21:38.8911:39.307 C-Q21:39.994 C-R22:00.133 C-R2+17.548 C-R2116.0 C-R237.624 C-Q236.194 C-Q125.073 C-Q1
25Mazda MX-5Nate Cicero >115%SMX831:39.415 A-Q21:39.4071:39.415 A-Q21:40.354 A-R11:41.029 A-R1+1.558 A-R1120.2 A-Q237.792 A-Q236.230 A-Q225.385 A-Q2
260 Mazda MX-5Helio Meza >115%SMX271:39.426 C-Q11:39.3961:39.426 C-Q11:43.767 C-R22:30.636 C-R1+45.195 C-R1113.9 C-Q137.862 C-Q136.323 C-Q125.211 C-Q1
27Mazda MX-5 (2006)Max Schweid 2+ cars >115%SMX81:39.443 C-Q11:39.0181:39.443 C-Q11:42.060 C-R22:00.165 C-R2+13.752 C-R2115.3 C-Q137.711 C-Q236.016 C-Q125.291 C-Q2
28Mazda MX-5 (2013)Will Robinson 2+ cars >115%SMX115, 61:39.446 B-Q21:39.2661:39.446 B-Q21:40.233 B-R21:40.789 B-R2+0.915 B-R2114.4 C-R237.778 B-Q236.270 B-Q225.218 B-Q2
29Mazda Miata (2011)Matthew Novak 2+ cars >115%SMX1111:39.509 C-Q11:39.1141:39.509 C-Q11:43.823 C-R22:30.375 C-R1+47.226 C-R1114.8 C-Q137.767 C-Q236.070 C-Q125.277 C-Q1
30Mazda MX-5 (2007)Austin Hill >115%SMX081:39.517 C-Q11:39.5171:39.517 C-Q11:44.342 C-R22:30.839 C-R1+45.915 C-R1114.4 C-Q137.837 C-Q136.011 C-Q125.669 C-Q1
31Mazda MX-5 (2011)Donald Squirek >115%SMX751:39.533 C-Q11:39.1891:39.533 C-Q11:40.092 C-R22:00.157 C-R2+17.354 C-R2114.7 C-Q137.546 C-Q236.315 C-Q125.328 C-Q1
32Mazda MX-5 (2010)Michael Borden >115%SMX421:39.623 C-Q21:39.6231:39.623 C-Q21:41.165 C-R22:00.272 C-R2+16.461 C-R2114.8 C-R237.879 C-Q236.360 C-Q225.384 C-Q2
33Mazda MX-5 (2006)Aiden Coleman >115%SMX601:39.627 B-Q21:39.4741:39.627 B-Q21:40.278 B-R21:40.957 A-R1+0.723 A-R1120.4 A-Q237.992 B-Q236.184 B-P25.298 B-R2
34Mazda MX-5 (2007)Chase McIntyre >115%SMX13, 31:39.666 B-Q21:39.5281:39.666 B-Q21:40.568 B-R21:41.220 B-R2+1.059 B-R2113.2 B-Q237.941 B-Q236.353 B-Q225.234 B-Q2
35Mazda MX-5 (2015)Justin Adakonis >115%SMX181:39.733 C-Q11:39.3411:39.733 C-Q11:41.035 C-R22:00.283 C-R2+16.810 C-R2115.3 C-Q137.873 C-Q236.277 C-Q125.191 C-Q1
36Mazda MX-5Joey Andrews >115%SMX1111:39.756 B-P1:39.1141:39.873 B-Q11:41.971 B-R21:42.506 B-R2+0.943 B-R2115.5 B-P37.748 B-Q136.142 B-P25.224 B-Q2
37Mazda MX-5 (2006)Jason Fichter 2+ cars >115%SMX71:39.779 B-R21:39.3591:39.990 B-Q11:39.779 B-R21:40.350 B-R2+1.638 B-R2118.9 A-Q2, A-R137.662 A-Q236.397 A-Q225.300 A-P
38Mazda MX-5 (2014)Vaughn Mishko >115%SMX991:39.866 B-Q11:39.4771:39.866 B-Q11:40.289 B-R21:40.957 B-R2+1.176 B-R2113.7 B-Q137.717 B-Q236.338 B-Q125.422 B-Q1
39Mazda MX-5 (2006)Harbir Dass >115%SMX49, 231:39.924 B-R21:39.7381:40.081 B-Q21:39.924 B-R21:40.490 B-R2+1.095 B-R2113.9 C-R238.016 B-R236.394 B-R225.328 B-Q2
40Mazda Miata (2006)Nico Bratz >115%SMX771:39.937 C-Q21:39.9191:39.937 C-Q21:41.973 C-R22:00.490 C-R2+13.744 C-R2113.4 C-R237.864 C-Q236.578 C-Q225.477 C-Q2
41Mazda MX-5 (2014)Vinnie Meskelis >115%SMX121:39.960 B-Q21:39.5251:39.960 B-Q21:39.978 B-R21:40.428 B-R2+1.028 B-R2113.4 B-R237.767 B-R236.508 B-R225.250 B-R2
42Mazda MX-5 (2013)Christopher Girem 2+ cars >115%SMX101:39.982 A-P1:39.9821:41.143 A-Q11:42.558 A-R11:43.058 A-R1+0.979 A-R1117.6 A-Q138.174 A-P36.712 A-P25.296 A-P
43Mazda MX-5 (2013)Gavin Vaughan 2+ cars >115%SMX481:40.052 A-Q21:39.7101:40.052 A-Q21:41.112 A-R11:42.534 A-R1+1.627 A-R1120.5 A-Q137.810 A-Q136.576 A-Q225.324 A-Q1
44Mazda MX-5 (2012)Emy Kissick >115%SMX131:40.242 A-Q21:40.1371:40.242 A-Q21:40.949 A-R11:41.679 A-R1+1.535 A-R1119.5 A-R138.342 A-Q236.397 A-Q225.398 A-P
45Mazda MX-5 (2006)Ricardo Arruda >115%SMX161:40.317 B-P1:40.1451:40.636 B-Q21:41.357 B-R21:41.849 B-R2+1.465 B-R2113.2 C-R238.527 B-R236.149 B-P25.469 B-P
46Mazda MX-5 (2010)Deacon Greenfield >115%SMX321:40.363 A-Q11:39.6871:40.363 A-Q11:40.719 A-R11:41.636 A-R1+1.693 A-R1119.0 A-Q1, A-R137.805 A-Q236.432 A-Q125.450 A-Q1
47Mazda Miata (2008)Josh Hansen >115%SMX441:40.594 C-Q11:40.5941:40.594 C-Q11:41.867 C-R22:00.589 C-R2+15.367 C-R2114.4 C-R238.355 C-Q136.663 C-Q125.576 C-Q1
48Mazda MX-5 (2012)Gavin Wardle 2+ cars >115%SMX1691:40.634 A-P1:40.1381:41.090 A-Q21:41.417 A-R11:42.228 A-R1+1.517 A-R1119.5 A-R138.070 A-P36.586 A-Q225.482 A-P
49Mazda MX-5 (2011)Erick Hallick >115%SMX281:40.943 C-Q21:40.6701:40.943 C-Q21:42.343 C-R22:00.655 C-R2+14.471 C-R2113.6 C-R238.339 C-Q136.532 C-Q125.799 C-Q1
50Mazda MX-5 (2015)Justin Mason >115%SMX151:41.083 C-Q21:41.0161:41.083 C-Q21:42.396 C-R22:00.910 C-R2+14.958 C-R2112.9 C-R238.343 C-Q236.846 C-Q225.827 C-Q1
51Mazda MX-5 (2012)David Pintaric >115%SMX571:41.113 C-Q21:40.6931:41.113 C-Q21:42.159 C-R22:03.098 C-R2+15.310 C-R2115.3 C-Q138.456 C-Q236.682 C-Q125.555 C-Q2
52Mazda MX-5 (2015)Javier Sanchez >115%SMX791:41.372 B-Q2, B-R21:41.0481:41.372 B-Q21:41.372 B-R21:42.317 B-R2+2.152 B-R2113.6 B-R238.536 B-R136.827 B-R225.685 B-R2
53Mazda MX-5 (2006)Matteo Azari >115%SMX1101:41.486 A-R11:40.7971:41.803 A-Q21:41.486 A-R11:42.592 A-R1+1.483 A-R1119.9 A-Q1, A-R138.481 A-R136.549 A-Q225.767 A-Q1
54Mazda MX-5 (2008)Aidan Shimbashi >115%SMX721:41.524 A-Q21:41.1841:41.524 A-Q21:41.617 A-R11:47.827 A-R2+2.689 A-R2117.6 A-R138.585 A-R136.874 A-Q225.725 A-R1
55Mazda MX-5 (2012)James Ebben >115%SMX41:41.575 C-Q21:41.4161:41.575 C-Q21:42.360 C-R22:00.960 C-R2+15.608 C-R2114.0 C-R238.772 C-Q236.762 C-R225.882 C-Q2
56Mazda MX-5 (2013)Jillian Fichter 2+ cars >115%SMX121:41.942 C-Q21:41.7181:41.942 C-Q21:43.094 A-R11:43.682 A-R1+1.622 A-R1117.3 A-Q138.746 C-Q237.046 A-Q225.926 C-Q2
57Mazda MX-5 (2015)Adrian Comstock >115%SMX05, 51:41.988 C-Q21:41.6211:41.988 C-Q21:42.912 C-R22:00.598 C-R2+14.963 C-R2112.2 C-R238.796 C-Q237.027 C-R225.798 C-Q2
58Mazda MX-5 (2009)Bryan Heitman >115%SMX251:41.993 C-Q11:41.8551:41.993 C-Q11:44.151 C-R22:00.517 C-R2+10.184 C-R2110.9 C-Q139.198 C-Q236.889 C-Q125.768 C-Q1
59Mazda Miata (2001)Stanley Brock JrSM611:42.071 B-P1:42.0681:42.981 A-Q11:42.619 A-R11:42.874 A-R1+1.848 A-R1111.8 A-Q138.166 B-P37.653 B-P26.249 B-P
60Mazda MX-5 (2008)Joe Ebben >115%SMX741:42.146 C-Q21:41.5541:42.146 C-Q21:42.527 C-R22:00.500 C-R2+16.375 C-R2113.9 C-R238.822 C-Q236.984 C-R225.748 C-Q2
61Mazda Miata (2001)Skyler Cottrell 2+ carsSM29, 91:42.324 A-Q1sector data unreliable1:42.324 A-Q11:43.022 A-R11:43.290 A-R1+0.730 A-R1111.2 A-Q138.2370.80625.854
62Mazda Miata (1999)John SalernoSM341:42.453 A-Q11:42.3601:42.453 A-Q11:43.042 A-R11:43.298 A-R1+2.480 A-R1110.9 A-Q138.394 A-Q137.750 A-Q126.216 A-R1
63Mazda Miata (2003)Charles MactutusSM661:42.553 D-R11:42.1851:42.619 D-Q21:42.553 D-R11:43.061 A-R1+1.531 A-R1111.4 A-R138.190 C-Q237.772 A-Q126.223 A-R1
64Mazda MX-5 (2008)Charlotte Traynor >115%SMX41:42.554 B-R21:42.2381:43.512 B-Q11:42.554 B-R21:42.911 B-R2+0.932 B-R2111.8 B-Q139.000 B-R237.190 B-P26.048 B-Q1
65Mazda Miata (1999)Travis WileySM177, 77, 781:42.611 A-R11:42.4511:42.719 A-Q11:42.611 A-R11:42.889 A-R1+1.908 A-R1111.8 A-Q138.390 C-Q237.841 B-P26.220 A-R1
66Mazda Miata (1999)Danny SteynSM391:42.620 C-Q11:42.3371:42.620 C-Q11:42.911 D-R11:43.347 D-R1+2.185 D-R1111.3 D-R238.256 D-R137.827 C-Q126.254 D-Q2
67Mazda Miata (1999)Sean NoonanSM01:42.625 B-R21:42.5371:42.848 B-Q11:42.625 B-R21:43.481 B-R2+1.529 B-R2109.6 D-R238.494 B-R237.768 B-P26.275 B-Q1
68Mazda Miata (2001)Max StalloneSM03, 1031:42.682 A-Q11:42.3711:42.682 A-Q11:42.939 A-R11:43.295 A-R1+0.850 A-R1110.7 A-R138.387 A-Q137.761 A-Q126.223 A-R1
69Mazda Miata (2002)Logan Stretch 2+ carsSM98, 891:42.684 A-Q11:42.4601:42.684 A-Q11:42.933 D-R11:43.287 A-R1+0.753 A-R1111.6 D-Q238.342 D-R137.892 A-Q126.226 A-R1
70Mazda Miata (2001)Bobby GossettSM44, 1441:42.699 A-Q11:42.3861:42.699 A-Q11:43.164 A-R11:43.933 B-R2+1.454 B-R2110.4 A-R138.259 A-Q137.890 A-Q126.237 B-P
71Mazda Miata (2004)Francisco BarrosoSM481:42.738 A-R11:42.7321:43.360 A-Q11:42.738 A-R11:43.274 A-R1+1.770 A-R1111.4 A-R138.441 A-R137.969 A-Q126.322 A-R1
72Mazda Miata (2000)James NewellSM70, 231:42.741 A-Q11:42.4971:42.741 A-Q11:42.822 A-R11:43.124 A-R1+2.265 A-R1112.2 A-Q138.524 B-R137.797 A-Q126.176 A-R1
73Mazda Miata (2001)Brian HendersonSM9, 971:42.756 D-R11:42.5341:43.323 D-Q21:42.756 D-R11:44.499 D-R1+4.295 D-R1111.7 D-Q2, D-R138.453 D-R137.725 D-R126.356 D-Q2
74Mazda Miata (2003)Raiden NicolSM1931:42.913 D-R11:42.7921:43.254 D-Q21:42.913 D-R11:43.621 D-R1+2.506 D-R1110.3 D-Q2, D-R138.335 D-R138.100 D-R126.357 D-R1
75Mazda Miata (2002)Nicholas BruniSM1, 61:42.965 D-R11:42.5161:43.156 C-Q21:42.965 D-R11:43.552 C-R2+14.239 C-R2111.3 D-R138.282 C-R237.803 C-Q226.431 D-R1
76Mazda Miata (1999)Stuart McaleerSM143, 431:42.999 C-R21:42.7151:43.275 A-Q11:42.999 C-R21:43.798 C-R2+12.217 C-R2110.9 A-Q138.504 C-R237.915 C-R226.296 A-Q1
77Mazda Miata (2005)Jim DragoSM21:43.034 D-Q21:42.8271:43.034 D-Q21:43.345 C-R21:43.896 C-R2+16.748 C-R2111.6 D-Q238.583 D-Q237.940 C-R226.304 D-Q2
78Mazda Miata (1999)Matthew Novak 2+ carsSM111:43.052 C-R21:42.7781:43.750 C-Q21:43.052 C-R21:43.543 C-R2+14.421 C-R2106.0 B-P38.472 C-R237.881 C-R226.425 B-R2
79Mazda Miata (2000)James NewllSM701:43.071 B-Q11:42.7591:43.071 B-Q1104.0 B-P38.453 B-Q137.907 B-Q126.399 B-Q1
80Mazda Miata (1999)Ethan GoulartSM721:43.085 B-P1:42.4481:43.239 B-Q11:43.238 B-R21:43.493 B-R2+0.642 B-R2105.9 B-P, B-Q138.503 B-R137.783 B-R226.162 B-P
81Mazda Miata (1999)Noah HarmonSM1121:43.107 D-R11:43.0451:44.186 D-Q21:43.107 D-R11:43.849 D-R1+2.207 D-R1111.0 D-R138.620 D-R138.038 D-R126.387 D-R1
82Mazda Miata (2002)Jose UlfeSM191:43.126 B-R21:42.6941:43.822 B-Q11:43.126 B-R21:43.669 B-R2+1.032 B-R2105.6 B-R238.615 B-R237.779 B-R226.300 B-P
83Mazda Miata (1999)Brett KowalskiSM15, 1151:43.136 C-Q11:42.9751:43.136 C-Q11:43.251 C-R21:44.027 D-R1+2.299 D-R1110.7 D-Q238.652 C-R237.945 C-Q126.378 A-Q2
84Mazda Miata (2001)Skip Brock_JrSM611:43.137 C-R21:42.7251:43.221 C-Q21:43.137 C-R21:43.637 C-R2+11.384 C-R2104.8 C-R238.364 C-Q237.921 C-R226.440 C-R2
85Mazda Miata (2002)Matt StretchSM891:43.165 B-Q11:42.8681:43.165 B-Q11:43.403 B-R21:43.998 B-R2+1.045 B-R2110.0 D-R138.604 B-Q137.868 B-R226.396 B-Q1
86Mazda Miata (2000)Tyler BrownSM071:43.170 C-R21:42.9231:43.696 C-Q21:43.170 C-R21:43.501 C-R2+15.774 C-R2105.2 C-R238.475 C-R237.828 C-R226.620 C-R2
87Mazda Miata (2002)Jarrett Jones 2+ carsSM861:43.195 B-R21:42.8291:43.614 B-Q11:43.195 B-R21:43.803 B-R2+1.620 B-R2106.2 B-R238.663 B-R237.764 B-R226.402 B-R2
88Mazda Miata (2001)Christian MeyerSM92, 1341:43.246 B-R21:42.9751:43.732 B-Q11:43.246 B-R21:43.614 B-R2+1.440 B-R2110.8 A-R138.696 B-Q138.097 A-R126.182 B-R2
89Mazda Miata (2001)Zach EhrlichSM1801:43.262 A-R11:43.0931:43.383 A-Q11:43.262 A-R11:43.789 A-R1+2.236 A-R1111.1 A-R138.757 A-R137.991 A-Q126.345 A-Q1
90Mazda MiataDaniel WilliamsSM281:43.270 B-Q11:43.0351:43.270 B-Q11:43.466 B-R21:44.212 B-R1+3.486 B-R1105.9 B-R238.703 B-R137.954 B-P26.378 B-Q1
91Mazda Miata (2001)Brandon CollinsSM1441:43.273 C-R21:42.8051:43.584 C-Q21:43.273 C-R21:43.600 C-R2+12.440 C-R2104.3 C-R238.330 C-R237.918 C-R226.557 C-Q2
92Mazda Miata (1999)Dean DybdahlSM901:43.300 A-Q11:42.7411:43.300 A-Q11:43.629 A-R11:43.916 A-R1+1.453 A-R1110.5 A-R138.650 A-R137.929 A-Q126.162 A-Q1
93Mazda Miata (1999)Will Robinson 2+ carsSM5, 51, 151, 1931:43.353 B-Q11:42.7131:43.353 B-Q11:43.391 B-R21:44.381 B-R2+1.513 B-R2110.7 A-Q1, A-Q238.546 A-Q137.865 B-P26.302 A-R1
94Mazda Miata (1999)Nick LeveroneSM188, 43, 92, 941:43.355 C-R21:43.0531:43.466 D-Q21:43.355 C-R21:44.147 C-R2+18.693 C-R2111.2 D-R138.633 D-R137.984 C-R226.436 D-R1
95Mazda Miata (1999)Scott PhillipsSM1661:43.363 B-R21:43.3041:44.166 B-Q11:43.363 B-R21:44.389 B-R2+1.059 B-R2109.1 A-Q238.822 B-R238.087 B-R226.395 B-R2
96Mazda Miata (1991)David SternSM191:43.366 A-Q11:43.3561:43.366 A-Q11:44.158 A-R11:44.374 A-R1+2.583 A-R1110.9 A-Q138.849 A-Q137.936 A-Q126.571 A-Q1
97Mazda Miata (2005)Senter SmithSM551:43.367 C-R21:43.1481:43.946 C-Q11:43.367 C-R21:43.864 C-R2+15.793 C-R2103.8 C-Q238.557 C-R237.910 C-R226.681 C-Q1
98Mazda Miata (2001)Justin GravettSM521:43.387 B-R21:43.2131:44.335 B-Q11:43.387 B-R21:44.515 B-R2+1.611 B-R2106.2 B-R238.660 B-R138.156 B-R226.397 B-R2
99Mazda Miata (1999)Jonathan NeudorfSM951:43.394 D-R11:42.8751:43.751 D-Q21:43.394 D-R11:44.154 D-R1+1.876 D-R1112.2 D-R138.476 D-R138.070 D-R126.329 D-R2
100Mazda Miata (2004)Frankie BarrosoSM481:43.430 D-R11:43.1361:43.900 D-Q21:43.430 D-R11:43.781 D-R1+2.613 D-R1111.6 D-R238.730 D-R138.005 D-R126.401 D-R1
101Mazda Miata (1999)Olivier PiatekSM621:43.431 B-R21:43.0181:43.620 C-Q11:43.431 B-R21:44.218 B-R2+1.234 B-R2105.4 B-R238.580 B-R238.056 B-R226.382 B-R2
102Mazda Miata (1997)Cliff BrownSM011:43.449 A-Q11:43.1241:43.449 A-Q11:43.780 A-R11:44.617 D-R1+3.006 D-R1110.8 A-Q138.716 D-R138.014 A-Q126.394 A-R1
103Mazda Miata (2001)Junior BrockSM611:43.478 D-Q21:43.2491:43.478 D-Q21:43.638 D-R11:44.372 D-R1+1.828 D-R1111.3 D-R238.617 D-R138.234 D-R126.398 D-Q2
104Mazda Miata (1999)Andrew DevotoSM091:43.486 C-R21:43.1961:43.750 C-Q21:43.486 C-R21:44.130 C-R2+19.725 C-R2104.0 C-Q138.381 C-R238.142 C-Q126.673 C-R2
105Mazda Miata (2000)Max EhrlichSM811:43.494 C-R21:43.3421:44.097 C-Q21:43.494 C-R21:44.015 C-R2+17.198 C-R2104.0 C-R238.721 C-R238.076 C-R226.545 C-R2
106Mazda Miata (1999)Jack Murchison 2+ carsSM1, 581:43.503 A-R11:43.1561:43.655 A-Q11:43.503 A-R11:44.155 A-R1+1.866 A-R1111.2 A-Q138.612 B-Q238.136 A-Q126.408 A-R1
107Mazda Miata (1999)Ryan KipkeSM441:43.531 A-Q11:43.4031:43.531 A-Q11:44.301 A-R11:44.427 A-R1+3.257 A-R1109.4 A-R238.689 A-Q138.215 A-Q126.499 A-Q1
108Mazda Miata (1999)Peter EnsorSM491:43.544 D-Q21:43.0661:43.544 D-Q21:45.991 D-R21:46.287 D-R2+3.200 D-R2111.7 D-Q238.731 D-Q238.113 D-Q226.222 D-Q2
109Mazda Miata (1997)Marc CefaloSM001:43.554 A-Q11:43.4211:43.554 A-Q11:44.029 A-R11:44.362 A-R1+1.978 A-R1110.2 A-Q238.922 A-Q137.968 A-Q126.531 A-R1
110Protoform P2Andrew WhitstonFV721:43.556 C-R21:43.2581:44.524 C-Q11:43.556 C-R21:44.315 C-R2+1.645 C-R2102.2 C-R238.495 C-R237.974 C-Q126.789 C-R1
111Mazda Miata (2004)Spencer LoftonSM101:43.574 D-Q21:43.2801:43.574 D-Q21:43.631 D-R11:43.846 D-R1+1.750 D-R1111.3 D-Q238.676 D-R138.095 D-R126.509 D-Q2
112Mazda Miata (1999)Luke Pullen 2+ carsSM211:43.606 C-Q21:43.4721:43.606 C-Q21:43.898 C-R21:45.425 C-R2+17.673 C-R2103.5 C-R238.624 C-Q238.261 C-R226.587 C-R2
113Mazda Miata (2001)Chris HaldemanSM281:43.664 C-Q21:43.4701:43.664 C-Q21:56.086 C-R11:57.234 C-R1+2.215 C-R1102.6 C-Q1, C-Q238.724 C-Q238.157 C-Q226.589 C-Q2
114Mazda Miata (2001)Sam CravenSM231:43.675 D-Q21:43.4221:43.675 D-Q21:44.534 D-R11:45.115 D-R1+1.421 D-R1111.0 D-R238.626 D-Q238.290 D-Q226.506 D-Q2
115Mazda Miata (1994)Chris AllenSM1691:43.685 A-R11:43.2591:43.760 A-Q11:43.685 A-R11:43.965 A-R1+1.891 A-R1111.5 A-Q138.909 A-R138.070 A-Q126.280 A-Q1
116Vorscha GB4Mitchell FergusonFV521:43.727 C-R21:43.4531:45.537 C-Q11:43.727 C-R21:44.953 C-R2+1.929 C-R2107.9 D-R138.733 C-R237.804 C-R226.916 D-R1
117Mazda Miata (2001)Mark CurleeSM63, 1631:43.757 B-P1:43.3731:44.641 C-Q21:44.515 B-R21:44.990 B-R2+0.808 B-R2110.4 A-R138.974 A-Q137.846 B-P26.553 B-P
118Mazda Miata (1999)Ryan MaloneySM151:43.766 A-Q11:43.1481:43.766 A-Q11:43.820 A-R11:44.088 A-R1+2.119 A-R1111.2 A-Q138.701 A-Q138.038 A-Q126.409 A-R1
119Mazda Miata (2003)Scott CarlisleSM541:43.771 B-R21:43.7371:45.433 B-Q11:43.771 B-R21:44.680 B-R2+1.210 B-R2105.5 B-R239.068 B-R238.150 B-R226.519 B-R2
120Mazda Miata (2003)Zack BarfieldSM1071:43.825 D-Q21:43.8251:43.825 D-Q21:44.129 D-R11:45.086 D-R1+3.823 D-R1110.6 D-R138.859 D-R138.521 D-Q226.552 D-Q2
121Mazda Miata (2001)Peter Tonelli IISM181:43.834 C-R21:43.5881:44.284 C-Q21:43.834 C-R21:44.960 C-R2+19.619 C-R2109.7 A-R139.079 A-R137.928 C-R226.581 C-Q2
122Mazda Miata (2002)Boris Said JrSM1331:43.853 C-Q11:43.5581:43.853 C-Q11:58.284 C-R12:01.677 C-R1+2.226 C-R1103.8 C-Q238.791 C-Q138.084 C-Q226.683 C-Q2
123Mazda Miata (2003)Joseph FederlSM1211:43.880 B-R21:43.3881:44.382 B-Q11:43.880 B-R21:44.180 B-R2+1.014 B-R2104.4 B-R238.791 B-Q238.211 C-R226.386 B-R2
124Mazda Miata (1999)Gianni MaiuroSM721:43.917 A-R11:43.3761:43.958 A-Q11:43.917 A-R11:44.474 A-R1+2.309 A-R1110.5 A-R138.878 A-Q138.141 A-R126.357 A-R1
125Mazda Miata (1999)Seth GentrySM201:43.918 B-R21:43.4471:45.010 B-Q21:43.918 B-R21:44.392 B-R2+0.721 B-R2105.1 B-R238.812 B-R238.266 B-R226.369 B-R2
126Mazda Miata (1999)Tyler KleinSM731:43.935 C-Q11:43.8511:43.935 C-Q11:44.349 C-R21:45.643 C-R2+16.895 C-R2103.4 C-Q138.938 C-R238.417 C-Q226.496 C-Q1
127Mazda Miata (2003)Colin MurchisonSM211:43.939 A-R11:43.5561:44.036 A-Q11:43.939 A-R11:44.105 A-R1+1.695 A-R1109.7 A-Q238.893 A-Q138.226 A-R126.437 A-R1
128Protoform P2Mike LawrenceFV361:44.011 C-R21:43.4481:44.684 C-Q11:44.011 C-R21:45.285 C-R2+2.269 C-R2105.7 A-R138.779 C-R237.547 C-R227.122 C-Q1
129Mazda Miata (1999)Max HewittSM221:44.032 C-R21:43.8131:44.367 C-Q21:44.032 C-R21:45.172 C-R2+19.041 C-R2103.5 C-R238.880 C-Q238.333 C-R226.600 C-R2
130Mazda Miata (2002)Bob Mueller Jr.SM601:44.035 A-Q11:43.7631:44.035 A-Q11:45.304 A-R11:45.409 A-R1+1.535 A-R1110.2 A-Q139.152 A-Q138.173 A-Q126.438 A-Q1
131Mazda Miata (2001)Tom BrownSM271:44.062 C-R21:43.9681:44.113 C-Q11:44.062 C-R21:45.059 C-R2+18.193 C-R2103.8 C-R239.054 C-Q138.149 C-R226.765 C-Q2
132Mazda Miata (1999)Julian DaCostaSM781:44.079 D-Q21:44.0751:44.079 D-Q21:44.206 D-R11:44.944 D-R1+4.150 D-R1111.3 D-R139.049 D-R138.328 D-R126.698 D-Q2
133Mazda Miata (1999)Ben GauntSM951:44.098 A-Q11:43.7681:44.098 A-Q11:45.115 A-R11:45.760 A-R1+1.787 A-R1109.7 A-R138.909 A-Q138.184 A-Q126.675 A-Q2
134Mazda Miata (1999)Sean VarwigSM021:44.101 C-Q11:43.9831:44.101 C-Q11:55.847 C-R11:56.278 C-R1+1.586 C-R1103.8 C-Q138.874 C-Q138.231 C-Q126.878 C-Q1
135Mazda Miata (2001)Ellie GossettSM77, 1771:44.102 A-Q11:43.9951:44.102 A-Q11:44.841 A-R11:45.293 A-R1+3.029 A-R1110.0 A-R139.063 A-Q138.250 A-Q126.682 A-Q1
136Mazda Miata (2001)Gavin Vaughan 2+ carsSM1481:44.103 A-Q11:43.1341:44.103 A-Q11:45.818 A-R12:00.065 A-R2+4.984 A-R2109.0 A-Q138.470 A-Q138.071 A-Q126.593 A-Q1
137Mazda Miata (2002)Wes DuchakSM681:44.130 C-Q21:43.7511:44.130 C-Q21:44.546 C-R21:45.050 C-R2+20.120 C-R2102.2 C-R238.897 C-Q138.083 C-Q226.771 C-R2
138Mazda Miata (1999)Maximilian OpalskiSM211:44.209 D-Q21:43.6491:44.209 D-Q21:44.334 D-R11:45.282 D-R1+2.311 D-R1111.3 D-Q239.049 D-R138.093 D-R126.507 D-Q2
139Mazda Miata (1999)Chase KovatchSM131:44.212 A-Q11:44.2121:44.212 A-Q11:45.760 A-R11:46.032 A-R1+0.822 A-R1111.2 A-Q139.244 A-Q138.494 A-Q126.474 A-Q1
140Mazda Miata (1999)Casey MoseleySM921:44.232 A-Q11:43.9731:44.232 A-Q11:45.331 A-R11:46.125 A-R1+1.543 A-R1110.0 A-Q139.099 A-Q138.132 A-Q126.742 A-R1
141Mazda MX-5 (2015)Jim Ebben >115%SMX561:44.267 B-P1:43.6781:44.510 B-Q11:50.901 B-R1110.2 B-P39.773 B-Q137.479 B-P26.426 B-P
142Mazda Miata (2001)Miles HewittSM171:44.408 C-Q21:44.1251:44.408 C-Q21:45.686 C-R21:46.319 C-R2+18.637 C-R2103.0 C-R239.131 C-Q238.412 C-Q226.582 C-Q2
143Protoform P2Steve WhitstonFV181:44.543 C-R21:43.6741:47.631 C-Q11:44.543 C-R21:44.979 C-R2+1.230 C-R2100.8 C-R238.681 C-R237.994 C-R226.999 C-R1
144Mazda Miata (2001)Graham JacobsonSM61:44.569 A-Q11:44.3401:44.569 A-Q11:44.902 A-R11:45.384 A-R1+2.187 A-R1110.4 A-R139.089 A-P38.504 A-Q126.747 A-Q1
145Mazda Miata (1999)Greg BogartSM1231:44.596 A-Q11:44.3891:44.596 A-Q11:45.189 A-R11:45.898 A-R1+2.385 A-R1109.7 A-R139.359 A-Q138.337 A-Q126.693 A-Q1
146Mazda Miata (1999)Greg SorgSM711:44.602 D-Q21:44.4271:44.602 D-Q21:44.986 D-R11:45.507 D-R1+2.003 D-R1110.0 D-Q239.258 D-R138.367 D-R126.802 D-R1
147Mazda Miata (2021)Jeremy FletcherSM221:44.629 D-Q21:44.6291:44.629 D-Q21:45.012 D-R21:46.483 D-R2+6.893 D-R2111.0 D-R239.933 D-R238.339 D-R226.715 D-Q2
148Mazda Miata (1999)Christopher Girem 2+ carsSM141:44.643 A-Q11:44.5961:44.643 A-Q11:46.827 B-R11:47.206 B-R2+0.561 B-R2108.7 A-R139.099 A-Q138.607 A-Q126.890 A-Q2
149Mazda Miata (1999)Javier RodriguezSM1891:44.743 B-Q11:44.4401:44.743 B-Q11:46.319 B-R11:47.508 B-R1+3.882 B-R1103.2 B-R139.118 B-Q138.538 B-Q126.784 B-Q1
150Mazda MiataDavid HendersonSM281:44.746 D-R11:44.7071:47.385 D-Q21:44.746 D-R11:46.241 D-R1+3.767 D-R1110.7 D-R139.380 D-R138.340 D-R126.987 D-R1
151Mazda Miata (1999)Marcos VentoSM121:44.778 D-Q21:44.4701:44.778 D-Q21:45.080 D-R11:46.297 D-R1+2.131 D-R1109.5 D-R139.412 D-Q238.394 D-Q226.664 D-R1
152Mazda Miata (1999)Henry BanksSM01:44.814 A-R11:44.2771:45.060 A-Q11:44.814 A-R11:45.227 A-R1+2.659 A-R1109.0 A-R139.182 A-R138.512 A-R126.583 A-R1
153Mazda Miata (1999)Lucas JensenSM55, 561:44.861 A-R11:44.7461:45.717 A-Q21:44.861 A-R11:45.631 A-R1+2.721 A-R1109.1 A-R139.160 A-R138.737 A-R126.849 A-R1
154VortechStevan DavisFV801:44.874 C-R11:44.3231:45.108 C-Q11:44.874 C-R11:45.215 C-R1+0.743 C-R1107.1 D-R139.256 C-R137.982 D-R127.085 C-R1
155Mazda Miata (1999)Mike RyanSM1201:44.886 C-Q11:44.8231:44.886 C-Q11:46.343 C-R21:53.976 C-R2+26.758 C-R2103.2 C-Q139.385 C-Q138.372 C-Q127.066 B-P
156Lotus ExigeAnthony GeraciSM81:44.891 D-R11:44.6421:45.028 D-Q21:44.891 D-R11:45.664 D-R1+1.775 D-R1110.7 D-Q239.247 D-R138.540 D-R126.855 D-Q2
157Mazda Miata (1999)Niko FondriniSM1511:44.919 C-Q11:44.5761:44.919 C-Q11:45.123 C-R21:45.952 C-R2+19.862 C-R2103.0 C-Q139.163 C-R238.517 C-Q126.896 C-Q1
158Mazda Miata (1999)Cohen CraftSM741:44.922 A-R11:44.6401:45.707 A-Q11:44.922 A-R11:45.716 A-R1+2.857 A-R1110.0 A-R139.216 A-R138.521 A-R126.903 A-R1
159Mazda Miata (1999)Jordan Rick SegriniSM1081:44.976 D-Q21:44.5101:44.976 D-Q21:45.003 D-R11:45.242 D-R1+0.429 D-R1110.2 D-R139.023 D-Q238.544 D-Q226.943 D-Q2
160Mazda MiataJay ThomasSM701:45.049 A-Q21:44.7651:45.049 A-Q21:46.218 A-R11:47.460 A-R1+3.843 A-R1109.7 A-R139.288 A-R138.617 A-R126.860 A-Q2
161Agitator 016Donnie IsleyFV301:45.061 A-Q11:44.7091:45.061 A-Q11:45.145 C-R21:46.709 C-R1+2.026 C-R1107.1 A-R139.108 C-R238.266 A-Q127.335 D-R1
162Mazda Miata (2002)Jason Fichter 2+ carsSM71:45.116 C-R21:44.8821:46.150 C-Q21:45.116 C-R21:45.946 C-R2+19.298 C-R2101.9 C-R239.386 C-R238.482 C-R227.014 C-R2
163Mazda MiataJohn HamnerSM07, 71:45.268 A-Q11:44.6791:45.268 A-Q11:45.845 A-R11:47.438 A-R1+3.532 A-R1110.5 A-R139.469 A-Q138.514 A-R126.696 A-R1
164Mazda Miata (1999)Logan CozzieSM961:45.374 D-R11:45.0571:45.523 D-Q21:45.374 D-R11:45.918 D-R1+2.722 D-R1109.4 D-Q239.217 D-R138.769 D-R127.071 D-R1
165Mazda Miata (2003)Jesse SingerSM1921:45.409 D-R11:44.9401:45.796 C-Q21:45.409 D-R11:46.607 D-R1+3.837 D-R1109.1 D-Q239.519 C-Q238.695 C-Q126.726 D-R1
166Mazda Miata (2003)Steven Clemons JR.SM751:45.537 D-Q21:45.5371:45.537 D-Q21:46.111 D-R11:46.890 D-R1+1.935 D-R1108.7 D-Q239.597 D-R138.902 D-R127.057 D-Q2
167Mazda Miata (1999)Justin FerraroSM81:45.546 A-Q11:45.5461:45.546 A-Q1109.8 A-Q139.647 A-Q138.710 A-Q127.189 A-Q1
168Mazda Miata (1999)Max Schweid 2+ carsSM911:45.567 D-R11:45.3431:46.271 D-Q21:45.567 D-R11:46.341 D-R1+2.946 D-R1108.7 D-R139.325 D-R138.989 D-R127.029 D-R1
169Mazda Miata (2002)Jillian Fichter 2+ carsSM121:45.611 C-Q11:44.9931:45.611 C-Q11:46.338 C-R21:47.089 C-R2+15.725 C-R2103.6 C-R239.331 C-R238.503 C-R227.159 C-Q1
170Mazda Miata (2000)Riley HaigSM051:45.614 A-Q11:45.5441:45.614 A-Q11:46.824 A-R11:47.450 A-R1+1.831 A-R1109.1 A-Q139.758 A-Q138.724 A-Q127.062 A-Q1, A-R1
171Mazda Miata (2003)Thomas PaolinoSM341:45.798 D-R11:45.6471:46.298 D-Q21:45.798 D-R11:46.666 D-R1+2.469 D-R1108.8 D-R139.779 D-R138.735 D-R127.133 D-R1
172Mazda Miata (1999)Tal TsfanySM10, 221:45.846 A-Q11:45.8461:45.846 A-Q11:46.986 A-R11:48.029 A-R1+3.535 A-R1110.0 A-R139.862 A-Q138.926 A-Q127.058 A-Q1
173Mazda Miata (2004)Domenico LeuciSM461:45.932 D-Q21:45.8491:45.932 D-Q21:46.242 D-R11:46.668 D-R1+2.832 D-R1108.8 D-R139.687 D-Q238.986 D-R127.176 D-Q2
174Mazda Miata (1999)Mickey MoranSM251:45.939 D-R11:45.2021:46.260 D-Q21:45.939 D-R11:46.411 D-R1+2.638 D-R1109.6 D-Q239.806 D-R138.489 D-R126.907 D-Q2
175Mazda Miata (1999)Grant JanishSM1781:45.986 D-Q21:45.6261:45.986 D-Q21:46.317 D-R11:47.153 D-R1+2.508 D-R1111.3 D-R139.685 D-R138.884 D-R127.057 D-Q2
176Mazda Miata (1999)Brian ToneSM1551:46.056 C-Q11:45.3571:46.056 C-Q11:46.089 C-R21:46.893 C-R2+12.548 C-R2102.3 C-R239.339 C-Q138.853 C-Q227.165 C-R2
177Mazda Miata (1999)Hayden ManisSM881:46.149 C-Q11:44.2121:46.149 C-Q11:46.279 C-R21:47.717 C-R2+13.621 C-R2103.0 C-R238.813 C-R238.565 C-R226.834 C-R2
178Mazda Miata (1999)Robert GarrisonSM061:46.158 A-Q11:45.7911:46.158 A-Q11:47.037 A-R11:47.852 A-R1+3.463 A-R1108.6 A-R140.157 A-Q138.699 A-Q126.935 A-R1
179Mazda Miata (1999)Mike CottrellSM991:46.195 C-R21:45.0601:46.236 C-Q21:46.195 C-R21:46.732 C-R2+15.205 C-R2104.0 C-R239.674 C-R238.288 C-R227.098 C-R2
180Mazda Miata (1999)Randall JoeSM651:46.461 B-Q11:45.8841:46.461 B-Q11:46.502 A-R11:47.158 D-R1+1.398 D-R1108.8 D-Q139.996 A-R138.690 C-Q127.198 B-Q1
181Volkswagen ProtoformTrevor CarmodyFV71:46.487 D-R11:45.5961:48.091 D-Q21:46.487 D-R11:47.414 D-R1+1.986 D-R1107.7 D-R140.081 D-R138.178 D-R127.337 D-R1
182Mazda Miata (2001)Rob TrollingerSM941:46.653 D-Q21:46.6531:46.653 D-Q21:47.296 D-R11:48.797 D-R1+2.938 D-R1109.5 D-R141.768 D-R139.134 D-R127.356 D-Q2
183Mazda Miata (1999)Laurin BrallierSM761:46.778 D-Q21:46.778 D-Q2107.6 D-Q127.620 D-Q2
184VortechAnthony HendersonFV171:46.846 A-Q21:46.7421:46.846 A-Q21:48.094 A-R11:48.311 A-R1+1.076 A-R1105.3 A-Q140.017 A-Q239.235 A-Q227.490 A-Q2
185Mazda Miata (1999)Ben FoltzSM51:46.900 A-R11:46.5121:47.918 A-Q21:46.900 A-R11:47.586 A-R1+1.947 A-R1109.7 A-R140.337 A-R138.951 A-R127.224 A-R1
186Mazda Miata (1999)Ryan PetermanSM531:46.947 B-R21:46.4351:48.292 B-Q21:46.947 B-R21:48.277 B-R2+2.185 B-R2102.6 B-R240.139 B-R238.963 B-R227.333 B-R2
187Mazda Miata (1999)Chris ClarkeSM1091:47.011 D-R11:45.7501:47.775 D-Q21:47.011 D-R11:47.584 D-R1+1.390 D-R1109.9 D-R239.956 D-R138.840 D-R126.954 D-R1
188Mazda Miata (2001)Chris RawlingsSM351:47.139 A-P1:46.945102.5 A-P39.904 A-P39.346 A-P27.695 A-P
189Mazda Miata (1994)Mark ZwolleSM1541:47.151 C-R21:46.8921:47.434 C-Q11:47.151 C-R21:48.302 C-R2+15.060 C-R2103.4 C-Q140.543 C-Q138.928 C-Q127.421 C-R2
190Mazda Miata (1999)Aaron ParkinsonSM1111:47.193 D-Q21:46.7761:47.193 D-Q21:48.224 D-R11:49.248 D-R1+2.211 D-R1109.6 D-Q240.426 D-Q239.185 D-Q227.165 D-Q2
191Mazda Miata (1999)William KeelingSM111:47.254 D-Q21:46.7881:47.254 D-Q21:48.070 D-R11:49.042 D-R1+5.577 D-R1107.7 D-Q239.965 D-Q239.269 D-R127.554 D-Q2
192Vorscha GB3Smith Jackson RagsdaleFV21:47.324 C-R21:46.7641:57.449 C-Q21:47.324 C-R21:47.590 C-R2+0.596 C-R298.4 C-R139.639 C-R239.124 C-R128.001 C-R2
193Mazda Miata (2001)Peter Tonell, IiSM181:47.326 A-P
194Mysterian M2Michael Nitz 2+ carsFV941:47.478 C-R21:46.7131:47.545 C-Q11:47.478 C-R21:48.309 C-R2+2.205 C-R299.5 C-R240.302 C-Q138.742 C-R127.669 C-R1
195JK Technologies XP-1Jonathan WeisheitFV611:47.543 D-R11:46.6681:52.465 D-Q21:47.543 D-R11:49.024 D-R1+1.337 D-R1107.2 D-R140.399 D-R138.760 D-R127.509 D-R1
196Protoform P2Ron WhitstonFV51:48.017 C-R21:47.5891:48.590 C-Q11:48.017 C-R21:48.705 C-R2+1.264 C-R2100.0 C-R140.887 C-R239.284 C-R227.418 C-R1
197Mazda Miata (2001)Steve SturmSM901:48.079 D-Q21:47.9061:48.079 D-Q21:48.359 D-R11:48.899 D-R1+4.377 D-R1108.0 D-R140.805 D-Q239.205 D-Q227.896 D-R1
198Mazda Miata (1999)Alex RubensteinSM941:48.132 A-Q21:48.1321:48.132 A-Q21:49.958 A-R11:50.646 A-R1+7.310 A-R1107.0 A-Q240.813 A-Q239.712 A-Q227.607 A-Q2
199Protoform P3Rich Richardson 2+ carsFV641:48.141 C-R21:47.5821:52.689 C-Q11:48.141 C-R21:48.473 C-R2+1.364 C-R298.5 C-R141.004 C-R238.798 C-R227.780 C-R2
200Caracal DRussell FredericksFV231:48.336 D-R11:47.5811:49.406 D-Q21:48.336 D-R11:51.704 D-R1+3.129 D-R1108.5 D-R140.769 D-R139.011 D-R127.801 D-Q2
201Mazda Miata (1999)Warren SackmanSM761:48.397 B-P1:47.8531:48.681 B-Q11:48.947 B-R11:49.586 B-R1+2.335 B-R1103.4 B-R140.796 B-P39.400 B-Q127.657 B-Q1
202Mazda Miata (1999)Gavin Wardle 2+ carsSM1941:48.439 B-R21:48.2901:52.795 B-Q21:48.439 B-R21:50.527 B-R2+2.484 B-R2103.4 B-R240.760 B-R239.873 B-R227.657 B-R2
203Mazda Miata (1991)Bailey SiglerSM591:48.485 D-R11:47.9901:49.963 D-Q21:48.485 D-R11:49.038 D-R1+5.067 D-R1109.6 D-R140.347 D-R139.813 D-R127.830 D-R2
204Mazda Miata (1999)Alfred WingoSM1081:48.549 B-Q11:47.6661:48.549 B-Q11:48.688 B-R11:49.234 B-R2+1.852 B-R2104.2 B-R140.999 B-R139.416 B-R227.251 B-Q1
205Mazda Miata (1999)Jason GreenwoodSM1001:48.679 D-R11:48.6791:51.015 D-Q21:48.679 D-R11:49.618 D-R1+7.053 D-R1106.2 D-Q241.162 D-R139.930 D-R127.587 D-R1
206Mysterian M3Mark Richardson 2+ carsFV201:49.107 C-R21:48.6581:50.256 C-Q11:49.107 C-R21:49.886 C-R2+1.935 C-R2100.3 C-R141.213 C-R239.424 C-R128.021 C-R2
207Mini CooperFrank SchwartzB-Spec271:49.265 D-R11:48.9201:49.470 D-Q21:49.265 D-R11:50.360 D-R1+1.512 D-R1101.2 D-Q140.310 D-R140.626 D-Q227.984 D-R1
208Mazda 2Franklin FutrelleB-Spec341:49.292 A-Q11:49.2921:49.292 A-Q11:50.565 A-R11:50.996 A-R1+0.936 A-R1101.8 A-Q140.963 A-Q140.187 A-Q128.142 A-Q1
209Mazda Miata (1999)Bruce AllenSM431:49.309 C-R21:48.9181:50.500 C-Q21:49.309 C-R21:50.392 C-R2+21.271 C-R2100.2 C-Q141.391 C-R239.541 C-R227.986 C-R2
210Protoform P2Michael Nitz 2+ carsFV941:49.464 A-Q21:48.5381:49.464 A-Q21:49.714 A-R11:49.998 A-R1+1.110 A-R1103.8 A-Q141.062 A-R139.681 A-R127.795 A-R1
211Lazer 1Rich Richardson 2+ carsFV991:49.498 A-R11:49.0601:50.080 A-Q21:49.498 A-R11:50.116 A-R1+1.776 A-R1102.5 A-Q141.168 A-R139.823 A-R128.069 A-R1
212Mazda 2Gale CorleyB-Spec89, 591:49.511 B-R21:49.4831:50.459 B-Q21:49.511 B-R21:50.052 B-R2+1.737 B-R2101.9 A-R140.987 B-R240.312 B-R228.184 B-R2
213Mini CooperConner KelleherB-Spec41:49.558 D-Q21:49.3271:49.558 D-Q21:49.577 D-R11:50.782 D-R1+1.724 D-R1102.0 D-R240.531 D-Q240.649 D-R128.147 D-R1
214Mazda 2Chris TaylorB-Spec46, 134, 621:49.559 B-R21:49.4971:51.049 B-Q21:49.559 B-R21:50.307 B-R2+1.648 B-R2101.8 A-R140.979 B-R240.437 B-R228.081 B-R2
215Chevrolet SonicJosh SchmidtB-Spec19, 1191:49.809 B-R21:49.3411:50.923 A-Q11:49.809 B-R21:50.374 B-R2+0.925 B-R2102.7 A-R141.125 B-R240.059 B-R228.157 B-R2
216Honda FitBlair DeffenbaughB-Spec187, 871:49.992 B-R2sector data unreliable1:50.812 B-Q21:49.992 B-R21:50.767 B-R2+1.509 B-R2102.4 D-R141.2131.05428.113
217Mazda 2Rice Last NameB-Spec501:50.152 A-P1:50.15293.7 A-P41.237 A-P40.906 A-P28.485 A-P
218Mazda Miata (2001)Brayton WilliamsSM041:50.229 A-R11:49.9661:53.547 A-Q11:50.229 A-R11:53.432 A-R1+9.471 A-R1103.6 A-R141.720 A-R140.135 A-R128.111 A-R1
219Mazda Miata (1992)Brad WilliamsSM171:50.296 D-Q21:50.2961:50.296 D-Q21:57.449 D-R11:58.430 D-R1+2.940 D-R1105.5 D-Q142.258 D-Q240.085 D-Q227.953 D-Q2
220Mini CooperThomas PendergrassB-Spec1561:50.340 A-P1:50.2961:51.359 A-Q11:51.797 A-R11:52.633 A-R1+1.033 A-R1101.4 A-Q140.886 A-Q140.749 A-Q128.661 A-P
221Mysterian M2Jacob SchillingFV851:50.348 A-R11:49.7651:51.018 A-Q11:50.348 A-R11:51.279 A-R1+2.498 A-R1103.8 A-R141.717 A-R139.978 A-Q128.070 A-R1
222Mazda 2Unknown DriverB-Spec621:50.378 A-Q11:50.3781:50.378 A-Q1101.6 A-Q141.391 A-Q140.644 A-Q128.343 A-Q1
223Honda FitLuke RussellB-Spec751:50.395 D-R11:49.9371:50.745 D-Q21:50.395 D-R11:51.096 D-R1+1.718 D-R1100.9 D-R140.903 D-Q240.797 D-R128.237 D-R1
224Chevrolet SonicStewart BlackB-Spec401:50.567 B-R21:49.8001:50.860 B-Q21:50.567 B-R21:51.358 B-R2+1.232 B-R2101.7 A-Q141.039 B-Q240.534 B-R228.227 B-P
225Mazda 2John Robinson IIIB-Spec351:50.813 A-R11:50.5951:51.337 A-Q11:50.813 A-R11:51.652 A-R1+1.670 A-R1103.5 A-R141.571 A-R140.659 A-R128.365 A-R1
226Mazda 2Rice RobinsonB-Spec62, 501:50.840 A-Q11:50.3371:50.840 A-Q11:50.919 A-R11:51.596 A-R1+1.402 A-R1101.4 A-R141.297 A-Q140.698 A-R128.342 B-R2
227Mazda 2Stephanie AndersenB-Spec1381:50.845 A-R11:50.3481:50.987 D-Q21:50.845 A-R11:51.618 A-R1+1.152 A-R1101.9 A-Q241.604 A-R140.433 A-R128.311 A-R1
228VortechMark Richardson 2+ carsFV881:50.913 A-R11:50.3201:51.390 A-Q21:50.913 A-R11:51.900 A-R1+2.084 A-R1103.0 A-R141.990 A-R139.924 A-R128.406 A-R1
229Mazda 2Joe McClughanB-Spec361:51.029 D-R11:50.5981:51.915 D-Q21:51.029 D-R11:52.174 D-R1+2.391 D-R1101.8 D-R141.496 B-R240.612 B-R228.490 D-R1
230CrusaderWilliam Duke RagsdaleFV031:51.031 C-R11:49.3052:01.913 C-Q21:51.031 C-R11:51.237 C-R2+0.464 C-R296.6 C-R240.655 C-R239.992 C-R228.658 C-R2
231Honda FitJason GrantB-Spec021:51.261 B-R21:51.0801:54.567 B-Q21:51.261 B-R21:51.923 B-R2+1.434 B-R296.5 B-R241.707 B-R241.074 B-R228.299 B-R2
232Caracel CJohn McaleerFV21:51.291 A-R11:50.3121:52.321 A-Q21:51.291 A-R11:52.552 A-R1+2.364 A-R1104.6 A-R141.585 A-R140.766 A-R127.961 A-R1
233Honda FitEric YagelB-Spec461:51.291 A-R11:50.6921:51.611 A-Q11:51.291 A-R11:51.710 A-R1+0.824 A-R1102.3 A-R141.728 A-R140.703 A-R128.261 A-Q1
234Mazda 2Kent CarterB-Spec192, 1911:51.919 A-Q11:51.3911:51.919 A-Q11:52.033 D-R11:52.632 A-R1+0.739 A-R1101.1 A-Q141.938 D-Q240.822 A-Q128.631 A-P
235Nissan Versa NoteRichard OsborneB-Spec1511:52.304 A-Q11:52.1451:52.304 A-Q11:53.204 A-R11:53.800 A-R1+0.988 A-R1101.6 A-R142.185 A-Q141.351 A-R128.609 A-Q1
236Toyota YarisJoseph GerschB-Spec119, 381:52.306 A-Q11:52.1551:52.306 A-Q11:53.523 A-R11:53.841 A-R1+0.767 A-R1100.6 A-Q142.132 A-Q141.212 A-Q128.811 A-Q1
237Honda FitDaniel WoldB-Spec541:52.311 D-R11:51.9261:53.239 D-Q21:52.311 D-R11:53.422 D-R1+1.284 D-R1100.3 D-R142.064 D-R141.315 D-R128.547 D-R1
238Mazda 2John PhillipsB-Spec21:52.342 D-Q21:51.9781:52.342 D-Q21:52.572 D-R11:53.539 D-R1+1.503 D-R1100.3 D-R141.866 D-R141.240 D-Q228.872 D-R1
239Citation CW1Barry SheltonFV961:52.837 A-R11:52.1621:53.780 A-Q21:52.837 A-R11:53.328 A-R1+0.621 A-R1100.4 A-Q242.282 A-R141.029 A-R128.851 A-R1
240Mini HatchbackJacob NewB-Spec071:52.854 A-R11:52.8541:53.300 A-Q11:52.854 A-R11:53.820 A-R1+1.022 A-R196.6 A-R241.977 A-Q141.751 A-Q129.201 A-Q1
241Mini CooperC. Lee DavisB-Spec841:53.787 B-R21:52.9451:54.133 B-Q21:53.787 B-R21:54.021 B-R2+2.205 B-R293.8 B-R242.957 B-R241.233 B-R228.755 B-R2
242Mazda 2John RobinsonB-Spec461:54.380 B-Q11:54.3261:54.380 B-Q193.1 B-P43.094 B-Q141.712 B-Q129.520 B-Q1
243Chevrolet SonicTodd BlevinsB-Spec952:03.373 A-R12:02.9702:05.257 A-Q12:03.373 A-R12:06.019 A-R1+3.099 A-R193.7 A-R147.501 A-R144.245 A-R131.224 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

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

CarClassDriversLapQualRaceTrapS1S2S3
Mazda MX-5SMX581:24.667Tyler Gonzales1:38.517Jarrett Jones1:24.667Tyler Gonzales120.7Elivan Goulart37.322Marcello Paniccia35.817Camden Gruber25.004Jarrett Jones
Mazda MiataSM/SMX1341:39.509Matthew Novak1:39.509Matthew Novak1:41.867Josh Hansen114.8Matthew Novak37.767Matthew Novak0.806Skyler Cottrell25.277Matthew Novak
Protoform P2FV51:43.556Andrew Whitston1:44.524Andrew Whitston1:43.556Andrew Whitston105.7Mike Lawrence38.495Andrew Whitston37.547Mike Lawrence26.789Andrew Whitston
Vorscha GB4FV11:43.727Mitchell Ferguson1:45.537Mitchell Ferguson1:43.727Mitchell Ferguson107.9Mitchell Ferguson38.733Mitchell Ferguson37.804Mitchell Ferguson26.916Mitchell Ferguson
VortechFV31:44.874Stevan Davis1:45.108Stevan Davis1:44.874Stevan Davis107.1Stevan Davis39.256Stevan Davis37.982Stevan Davis27.085Stevan Davis
Lotus ExigeSM11:44.891Anthony Geraci1:45.028Anthony Geraci1:44.891Anthony Geraci110.7Anthony Geraci39.247Anthony Geraci38.540Anthony Geraci26.855Anthony Geraci
Agitator 016FV11:45.061Donnie Isley1:45.061Donnie Isley1:45.145Donnie Isley107.1Donnie Isley39.108Donnie Isley38.266Donnie Isley27.335Donnie Isley
Volkswagen ProtoformFV11:46.487Trevor Carmody1:48.091Trevor Carmody1:46.487Trevor Carmody107.7Trevor Carmody40.081Trevor Carmody38.178Trevor Carmody27.337Trevor Carmody
Vorscha GB3FV11:47.324Smith Jackson Ragsdale1:57.449Smith Jackson Ragsdale1:47.324Smith Jackson Ragsdale98.4Smith Jackson Ragsdale39.639Smith Jackson Ragsdale39.124Smith Jackson Ragsdale28.001Smith Jackson Ragsdale
Mysterian M2FV21:47.478Michael Nitz1:47.545Michael Nitz1:47.478Michael Nitz103.8Jacob Schilling40.302Michael Nitz38.742Michael Nitz27.669Michael Nitz
JK Technologies XP-1FV11:47.543Jonathan Weisheit1:52.465Jonathan Weisheit1:47.543Jonathan Weisheit107.2Jonathan Weisheit40.399Jonathan Weisheit38.760Jonathan Weisheit27.509Jonathan Weisheit
Protoform P3FV11:48.141Rich Richardson1:52.689Rich Richardson1:48.141Rich Richardson98.5Rich Richardson41.004Rich Richardson38.798Rich Richardson27.780Rich Richardson
Caracal DFV11:48.336Russell Fredericks1:49.406Russell Fredericks1:48.336Russell Fredericks108.5Russell Fredericks40.769Russell Fredericks39.011Russell Fredericks27.801Russell Fredericks
Mysterian M3FV11:49.107Mark Richardson1:50.256Mark Richardson1:49.107Mark Richardson100.3Mark Richardson41.213Mark Richardson39.424Mark Richardson28.021Mark Richardson
Mini CooperB-Spec41:49.265Frank Schwartz1:49.470Frank Schwartz1:49.265Frank Schwartz102.0Conner Kelleher40.310Frank Schwartz40.626Frank Schwartz27.984Frank Schwartz
Mazda 2B-Spec121:49.292Franklin Futrelle1:49.292Franklin Futrelle1:49.511Gale Corley103.5John Robinson III40.963Franklin Futrelle40.187Franklin Futrelle28.081Chris Taylor
Lazer 1FV11:49.498Rich Richardson1:50.080Rich Richardson1:49.498Rich Richardson102.5Rich Richardson41.168Rich Richardson39.823Rich Richardson28.069Rich Richardson
Chevrolet SonicB-Spec31:49.809Josh Schmidt1:50.860Stewart Black1:49.809Josh Schmidt102.7Josh Schmidt41.039Stewart Black40.059Josh Schmidt28.157Josh Schmidt
Honda FitB-Spec51:49.992Blair Deffenbaugh1:50.745Luke Russell1:49.992Blair Deffenbaugh102.4Blair Deffenbaugh40.903Luke Russell1.054Blair Deffenbaugh28.113Blair Deffenbaugh
CrusaderFV11:51.031William Duke Ragsdale2:01.913William Duke Ragsdale1:51.031William Duke Ragsdale96.6William Duke Ragsdale40.655William Duke Ragsdale39.992William Duke Ragsdale28.658William Duke Ragsdale
Caracel CFV11:51.291John Mcaleer1:52.321John Mcaleer1:51.291John Mcaleer104.6John Mcaleer41.585John Mcaleer40.766John Mcaleer27.961John Mcaleer
Nissan Versa NoteB-Spec11:52.304Richard Osborne1:52.304Richard Osborne1:53.204Richard Osborne101.6Richard Osborne42.185Richard Osborne41.351Richard Osborne28.609Richard Osborne
Toyota YarisB-Spec11:52.306Joseph Gersch1:52.306Joseph Gersch1:53.523Joseph Gersch100.6Joseph Gersch42.132Joseph Gersch41.212Joseph Gersch28.811Joseph Gersch
Citation CW1FV11:52.837Barry Shelton1:53.780Barry Shelton1:52.837Barry Shelton100.4Barry Shelton42.282Barry Shelton41.029Barry Shelton28.851Barry Shelton
Mini HatchbackB-Spec11:52.854Jacob New1:53.300Jacob New1:52.854Jacob New96.6Jacob New41.977Jacob New41.751Jacob New29.201Jacob 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

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

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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, including ‘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.

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.

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,"

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

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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.

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.."

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.

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."

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."

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

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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."

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"

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."

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

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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.”

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"

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)"

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.

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."

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”

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"

FV FV Wheel Bearing Clarification

#35150 from Formula/Sports Racing Committee · Rule change · TB 23-12 (2023-12 Fastrack)

Summary

wordingFV front wheel bearings wording clarified in GCR 9.1.1.C.10.G.

As printed in Fastrack

In FV, GCR section 9.1.1.C.10.G, change as follows:
"Front W wheel bearings"

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."

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

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

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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."

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

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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."

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-

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321."

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

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."

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."

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

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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

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

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

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

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

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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. "

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

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)"

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"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)"

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

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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."

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

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B14 kit #47-171725 verified compatible."

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): "Front 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): "Front 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): "Front 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."

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Mini Cooper (R56) AT (07-10): "Front 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): "Front 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): "Front 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): "Front 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): "Front 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): "Front 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): "Front 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): "Front 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."

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)"

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"

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:

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"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

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

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.

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"

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.

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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."

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."

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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)"

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."

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."

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

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."

SMX 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."

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

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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

SMX 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

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:

SMX 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:

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."

SMX 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."

FV Disc Brakes

#36822 from Guy Bellingham · Rule change · TB 24-10 (2024-10 Fastrack)

Summary

suspension & brakesFV ferrous rotor no longer required to be smooth; may have up to three pad cleaning grooves per side.

As printed in Fastrack

In FV, GCR section 9.1.1.C.4.D, change as follows:
"Any ferrous alloy, unvented rotor may be used, but must have a maximum diameter of 11.75 in. and a minimum thickness of
0.20 in. The otherwise smooth rotor may not be cross-drilled and may have a maximum of three pad cleaning grooves per side."

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."

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

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."

SMX 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."

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"

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."

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. Exhaust 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

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)"

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."

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"

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."

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."

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

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)"

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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"

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."

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."

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)"

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."

SMX Clarify Tire Marking Regs

#38004 from Greg Amy · Rule change · TB 25-05 (2025-05 Fastrack)

Summary

wordingSMX Toyo RR P235/40/ZR17 tire rules clarified: one set per weekend, marking after first session, damage replacement procedures revised.

As printed in Fastrack

In GCR, Section 9.1.7.1.D.16.c., change as follows:
"1. Cars in SMX are limited to running 1 (one) new (sticker) set, used tires or any of those combinations, of class specified Toyo
tires (Toyo RR P235/40/ZR17) per regular season Hoosier Super Tour event weekend during qualifying and races (not including
any test day sessions). Before the first dry qualifying or race (if rain in qualifying) session competitors will supply four Toyo RR
P235/40/ZR17 tires for marking to use during the entire weekend. Class specified rain tires will not be marked. SMX cars are
limited to one set of Toyo RR P235/40/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 SMX competitors is required after the first dry qualifying or race (if rain in qualifying) session. It

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is the competitor’s responsibility to ensure their tires are marked prior to going on track for the next session. 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.
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 SMX CCC, if assigned, for inspection. At the direction of the Hoosier Super Tour Series Tech Chief or SMX CCC, the
compet- itor 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."

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

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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."

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."

SMX SMX Data Submission Timeframe

#38039 from Jason Fichter · Rule change · TB 25-05 (2025-05 Fastrack)

Summary

wordingSMX data submission deadline extended from 30 to 60 minutes after each timed session.

As printed in Fastrack

RM 25-04 Please update the data acquisition timeframe in GCR section 9.1.7.1.D.20
"20. Data Acquisition
1. A technical evaluation process for cars is available. Part of this process is the required download of AiM Data files after each
timed session (Qualifying 1 & 2, Races 1 & 2). Within 30 60 minutes of each timed session end, all 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, or having non-functioning data, may be grounds for penalty or
disqualification."

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.

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."

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."

SMX 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."

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"

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."

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."

SMX 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."

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

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. Any 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

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."

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

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"

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."

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

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

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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

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: "47 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: "46 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"

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.”

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."

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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."

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

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 permitted 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."

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."

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”

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Mini (All R56, R56 LCI, Coupe, and Clubman): “WALKER 16650”

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."

What the rules allowed changed as listed; this does not say what any particular car ran.