BoP Lab / Michelin Raceway Road Atlanta
| Pos | Car | Driver | Class | # | Lap | Theoretical | Qual | Race | 5-lap stint | Consistency | Trap | S1 | S2 | S3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Porsche Cayman | Raphael Assuncao | T2 | 38 | 1:33.885 B-Q1 | 1:33.885 | 1:33.885 B-Q1 | 1:34.704 B-R2 | 1:35.563 B-R2 | +2.195 B-R2 | 142.3 A-Q2 | 37.120 B-R2 | 33.234 B-R2 | 23.908 B-Q1 |
| 2 | Chevrolet Corvette | William Bolt | T2 | 199 | 1:34.508 A-R1 | 1:34.437 | 1:41.528 A-Q2 | 1:34.508 A-R1 | 1:36.237 A-R1 | +2.525 A-R1 | 140.3 A-R1 | 37.102 A-R1 | 33.451 A-R1 | 23.884 A-R1 |
| 3 | Chevrolet Corvette | James Davidson | T2 | 57, 09 | 1:34.519 B-Q2 | 1:34.402 | 1:34.519 B-Q2 | 1:35.159 A-R1 | 1:37.124 B-R1 | +1.203 B-R1 | 140.5 A-R1 | 37.011 B-Q2 | 33.448 B-Q2 | 23.943 B-P |
| 4 | BMW M2 CS | Aaron Kaplan | T2 | 18 | 1:34.747 A-P | 1:34.283 | 127.2 A-P | 36.644 A-P | 33.662 A-P | 23.977 A-P | ||||
| 5 | BMW M240iR | Basam Abdallah | T2 | 10 | 1:34.798 B-R2 | 1:34.097 | 1:39.165 B-Q1 | 1:34.798 B-R2 | 1:35.140 B-R2 | +1.208 B-R2 | 133.4 B-R2 | 37.088 B-R2 | 33.033 B-R2 | 23.976 B-R2 |
| 6 | BMW M2 CSR | Russell King | T2 | 12 | 1:39.573 B-R2 | 1:38.724 | 1:40.965 A-Q2 | 1:39.573 B-R2 | 1:40.288 A-R1 | +1.399 A-R1 | 132.3 A-R1 | 39.202 B-R2 | 34.624 A-R1 | 24.898 A-R1 |
| 7 | BMW M2 CSR | Steven Greenhill >115% | T2 | 79 | 1:50.234 A-R1 | 1:49.076 | 1:52.899 A-Q2 | 1:50.234 A-R1 | 1:51.557 A-R1 | +2.001 A-R1 | 114.3 A-Q2 | 42.618 A-R1 | 38.736 A-R1 | 27.722 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 are numbered in lap order from start/finish, whatever each event's timing called them; the loop names are SCCA timing's.
| Car | Class | Drivers | Lap | Qual | Race | Trap | S1 | S2 | S3 |
|---|---|---|---|---|---|---|---|---|---|
| Porsche Cayman | T2 | 1 | 1:33.885Raphael Assuncao | 1:33.885Raphael Assuncao | 1:34.704Raphael Assuncao | 142.3Raphael Assuncao | 37.120Raphael Assuncao | 33.234Raphael Assuncao | 23.908Raphael Assuncao |
| Chevrolet Corvette | T2 | 2 | 1:34.508William Bolt | 1:34.519James Davidson | 1:34.508William Bolt | 140.5James Davidson | 37.011James Davidson | 33.448James Davidson | 23.884William Bolt |
| BMW M2 CSR | T2 | 3 | 1:34.747Aaron Kaplan | 1:40.965Russell King | 1:39.573Russell King | 132.3Russell King | 36.644Aaron Kaplan | 33.662Aaron Kaplan | 23.977Aaron Kaplan |
| BMW M2 CS | T2 | 1 | 1:34.747Aaron Kaplan | 127.2Aaron Kaplan | 36.644Aaron Kaplan | 33.662Aaron Kaplan | 23.977Aaron Kaplan | ||
| BMW M2 CSR | T2 | 2 | 1:39.573Russell King | 1:40.965Russell King | 1:39.573Russell King | 132.3Russell King | 39.202Russell King | 34.624Russell King | 24.898Russell King |
| BMW M240iR | T2 | 1 | 1:34.798Basam Abdallah | 1:39.165Basam Abdallah | 1:34.798Basam Abdallah | 133.4Basam Abdallah | 37.088Basam Abdallah | 33.033Basam Abdallah | 23.976Basam Abdallah |
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.
#37295 from Touring Committee · Rule change · TB 25-04 (2025-04 Fastrack)
neutralFord Mustang Challenge Darkhorse R newly classified in T2 with 58 mm restrictor, 3775 lbs minimum weight.In T2 Spec Lines, classify the Ford Mustang Challenge Darkehorse R.
A specification table follows in the original; it is not shown here.
#37603 from Ben Slechta · Rule change · TB 25-04 (2025-04 Fastrack)
neutralT2 350Z (03-08) removes detailed OEM part numbers and consolidates permitted modifications into simplified allowance list.In T2 Spec Lines, Nissan 350Z Track/ Touring/ Standard/ Nismo Spec Z (03-08), change Notes as follows:
"Nissan Motorsports: Shock Front left P/N E6110-SZ350 & Front right E6111-SZ350 & rear E6210-SZ350, Springs front P/N54010-SZ350 & rear 55020-SZ350, F&R 5600S-SZ350, Front roll bar #54611-SZ350, Rear roll bar #562300-SZ350, Bushings P/N(54541, 54560, 55045, 55148, 55149, 55152, 55153, 55158, 56218) - RRZ30 allowed. Nismo flywheel permitted. SPC ControlArms 72125 and 72123 are allowed. Aftermarket flywheel permitted at minimum 14lbs. Aftermarket headers permitted, cold airintake permitted. Aftermarket big brake kit 4 piston front permitted up to 355x32 SPL pro V3 front upper camber caster controlarms for the 350z part# SPLFUAZ33 permitted. SPL rear toe links part# SPL RTA Z33 permitted. Stillen part #400338 permitted.44011-RC350 rear caliper kit permitted, 43206-SZ350 Right rotor permitted, 43207-SZ350 Left rotor permitted. Must conform to
all SpecZ 2018 Edition rules. No other touring allowances beyond 2018 SpecZ edition rules or allowances listedhere. Track/NISMO/S/R-Tune OEM aero options permitted, KW Motorsports: F&R 5600S-SZ350 permitted, Front sway bar max
37mm, Rear sway bar max 25mm, RRZ30 Oil Pump allowed, Performance alternative front upper control arms permitted,
Spherical bearings allowed, Springs up to 700 lbs./in. front/rear permitted, Aftermarket flywheel permitted at minimum 14lbs, Z1
350Z Intake Power Mod Kit permitted, Aftermarket headers permitted, Cold air intake permitted, Stillen part #400338 permitted,
Zspeed and Z1 alternative clutch slave permitted, Nissan rear diff cover #99996-35TDK or #383510C021 permitted, Nissan caliper
kit: 41001-FR350 and/or 44011-RC350 permitted."
#37490 from Joe Aquilante · Rule change · TB 25-05 (2025-05 Fastrack)
fasterT2 C6 Corvette LS2 restrictor increases from 63mm to 67mm FPR.In T2 Spec Lines, Chevrolet Corvette C6 Coupe / Grand Sport (05-13), Required Restrictor, change as follows:
LS2: "63mm 67mm FPR"
#38014 from Zachary Hayward · Rule change · TB 25-05 (2025-05 Fastrack)
fasterT2 Nissan 370Z max wheel size increases to 19 x 10.5 inches; mid link replacement for true coil overs now permitted.In T2 Spec Lines, Nissan 370Z (09-17) / 370Z NISMO Edition (09-17), change as follows:
Max Wheel Size: "19 x 10 10.5"
Notes: "5300S-SS370 T-2 spring kit allowed; 54600-SS370 Sway Bars allowed 35mm (f). 29mm (r) Sports Package is allowed.
Springs up to 1000 lbs/in front and rear allowed. 54010- SZ350 (F) and 55020-SZ350 (R) allowed. Cold Air Intake allowed.
Performance Alternative Header permitted. Rear spring relocation permitted to allow coil over shocks. SPL suspension kit
permitted that includes: rear camber arms #SPL RLL Z34 or Nismo 551A0-RLLRZ, , SPL rear traction arms #SPL RTR Z34, or Nismo
55110-RTRRZ SPL front camber arms #SPL FUA Z34,or 54525-FUAZ4 SPL rear mid link #SPL RML Z34 or Nismo 551B0-RMLZ4. SPL
Part# SPL RTA Z34D or NISMO Part# 551B0-RTARZ permitted. Zspeed and Z1 alternative clutch slave permitted. The following
STOPTECH parts are allowed with a 50 Lb penalty: #83.488.6800.51 front, 83.657.0057.51 rear."
#38210 from Touring Committee · Rule change · TB 25-05 (2025-05 Fastrack)
fasterT2 Cadillac CT4-V Blackwing maximum tire size increases from 295 to 315.In T2 Spec Lines, CT4-V Blackwing (2022-), change Tire Size Max as follows:
“295 315”
#38451 from Terry Hanushek · Rule change · TB 25-08 (2025-08 Fastrack)
neutralT2, T3, T4 Spec Lines table header changed from T2 to ET.In T2-T4 Spec Lines, change Table Header as follows:
"T2 ET"
#38536 from Joe Aquilante · Rule change · TB 25-08 (2025-08 Fastrack)
unclearBMW M2 CS Cup 2020 must run Red power stick part #8324085, not Purple #8324089.The BMW M2 CS Clubsport is classed in T1, not T2. Please visit the following web address for vehicle details about the car's base
allowances-
https://www.bmwusa.com/motorsport/bmw-m2-
cs.html#:~:text=The%20BMW%20M2%20CS%20Racing%20models%20are%20powered%20by%20a,M2%20CS%20Racing%20Rec
ommended%20Mileage.
In T2 Spec Lines, BMW M2 CS Cup 2020, change as follows:
Model: "BMW M2 CS Cup 2020-2021"
Notes: "DOT approved tires required. All other components must be as homologated from BMW Motorsports. No other changes
or Touring rule allowances permitted unless noted below. It is permitted to remove door glass and mechanism. It is mandatoryto run the “Purple” power stick part #8324089. Effective 3/1/2025 5 It is mandatory to run the “Red” power stick part #8324085.
BMW exhaust part # 18302459928 allowed. Hot country package allowed including part numbers: (aKMK LH 17 10 8342846 1,
aKMK RH 17 10 8328139 1, 17 10 8328135 1, 17 10 8328136 1, 17 10 8328137 1, 17 10 8328138 1, ISO7380-2 M5X14 10.9 ZNSW
17 10 8436008 2, 17 10 8417424 1.) Hood vents conforming to 9.1.9.2.D.8.a.7 are permitted."
Applies to BMW M2 CSR on this page: Aaron Kaplan, Russell King, Steven Greenhill
#38554 from Touring Committee · Rule change · TB 25-08 (2025-08 Fastrack)
slowerT2 Chevrolet Corvette C5 Z06 and C6 brake allowances clarified; stock calipers and rotors only for C5, specific sizes for C6.In T2 Spec Lines, change Brakes as follows:
Chevrolet Corvette C-5 Incl. Fxd Cpe (98-04) Z06 (hardtop) (01-04): "(F) 325 Vented Disc (R) 305 Vented Disc May use two piecesteel rotors with aluminum hats up to 5% larger than 340/330; Any four piston calipers and brackets are permitted. Any brakecaliper pistons are allowed; may use the Wilwood SL6R brake caliper. Stock calipers and rotors only (F) 325 (R) 305"
Chevrolet Corvette C6 Coupe / Grand Sport (05-13): "(F) 325 / 340 Vented Disc (R) 305 / 330 Vented Disc or (F) 355 x 32 VentedDisc (R) 340 x 26 Vented Disc or May use 2-pc steel rotors with alum. hats up to 5% larger than Z51 rotor. LS2 may use GrandSport brake package. Any brake caliper pistons allowed. May use any four piston brake caliper and brackets. Z06 brake calipersallowed."
#38782 from Touring Committee · Rule change · TB 25-08 (2025-08 Fastrack)
slowerT2 Chevrolet Corvette C5 LS1 restrictor reduced from 59mm to 58mm FPR.In T2 Spec Lines, Chevrolet Corvette C-5 Incl. Fxd Cpe (98-04) Z06 (hardtop) (01-04), change Restrictor Required as follows:
"LS1: 59 58mm FPR,
LS2: 63mm FPR,
LS3: 56mm FPR,
LS6: 58mm FPR"
Applies to Chevrolet Corvette on this page: William Bolt, James Davidson
#39166 from Josh Smith · Rule change · TB 25-11 (2025-11 Fastrack)
neutralT3 and T4 Mazda MX-5 Miata models add approved gear kit PT#-0000-02-6100 to notes.In T4 Spec Lines, Mazda MX5 Miata/Club/ RF (19-24), add to Notes the following:
"Gear kit Kit PT#- 0000-02-6100."
In T4 Spec Lines, Mazda MX-5 Miata/Club (16-18), add to Notes the following:
"Gear kit Kit PT#- 0000-02-6100."
In T3 Spec Lines, Mazda MX-5 Miata (16-18), add to Notes the following:
"Gear kit Kit PT#- 0000-02-6100."
In T3 Spec Lines, Mazda MX-5 Global Cup Miata (2016-2021) ND1, ND, add to Notes the following:
"Gear kit Kit PT#- 0000-02-6100."
#39170 from Josh Smith · Rule change · TB 25-11 (2025-11 Fastrack)
neutralT4 Mazda MX-5 Miata/Club/RF (19-24) and (16-18) remove discontinued hardtop part #0000-07-5901; T3 MX-5 Miata (16-18) and Global Cup ND (16-21) same.In T4 Spec Lines, Mazda MX5 Miata/Club/ RF (19-24), change Notes as follows:
"Factory bolt-in roll bar/ cross member may be removed to facilitate roll cage installation. The following item(s) must remain
stock: transmission differential unless specified below. Retractable hardtop option permitted but must be disabled from moving
action and positively fastened. Any OEM or aftermarket hardtop is permitted that retains the OEM roof silhouette, including
Mazda hardtop part #0000-07-5902-ND and part #0000-07-5901 (discontinued DG Motorsports). 29mm (f) 16mm (r) sway bars
allowed. 3rd and 4th gear may be replaced with the following parts- (0000-02-5803-02, 0000-02-5803-01, 0000-02-5804-02,
0000-02-5804-01). Suspension package permitted with a 100 lbs. weight increase that includes the following parts: front springs
#0000-04-9700-08, springs up to 500lb front and 300lb rear allowed. Mazda tower brace 0000-04-5626 allowed. Mazda header
0000-06-5410 allowed."
In T4 Spec Lines, Mazda MX-5 Miata/Club (16-18), change Notes as follows:
"Factory bolt-in roll bar/ cross member may be removed to facilitate roll cage installation. Retractable hardtop option permitted
but must be disabled from moving action and positively fastened. Any OEM or aftermarket hardtop is permitted that retains the
OEM roof silhouette, including Mazda hardtop part #0000-07-5902-ND and part #0000-07-5901 (discontinued DG Motorsports).
29mm (f) 16mm (r) sway bars allowed. Up to 500lb front and 300lb rear springs allowed. Mazda Motorsports Header part
#0000-06-5410 allowed. Mazda tower brace 0000-04-5626 allowed. 3rd and 4th gear may be replaced with the following parts-
(0000-02-5803-02, 0000-02-5803-01, 0000-02-5804-02, 0000-02-5."
In T3 Spec Lines, Mazda MX-5 Miata (16-18), change Notes as follows:
"Factory bolt-in roll bar/ cross member may be removed to facilitate roll cage installation. Header permitted. Cold air intake
permitted. Front strut brace permitted. Front and rear sway bars permitted up to 35mm, Springs 800 front and 800 Rear max
permitted. Any OEM or aftermarket hardtop permitted that retains the OEM roof silhouette including Mazda hardtop part
#0000-07-5902- ND and part #0000-07-5901 (discontinued DG Motorsports top). If a hardtop is used, latches shall be replaced
with positive fasteners. Retractable hardtop option permitted but must be disabled from moving action and positively fastened.
In T3 Spec Lines, Mazda MX-5 Global Cup Miata (2016-2021) ND1, ND, change Notes as follows:
"Shoulder harness installation must conform to FIA mounting specifications that are approved for this vehicle per section 6.2 FIA
article 253, safety equipment. Must meet all ND2 MX-5 Global Cup rules. Any OEM or aftermarket hardtop is permitted that
retains the OEM roof silhouette, including Mazda hardtop Mazda hardtop part #0000-07-5902-ND and #0000-07-5902-ND part#0000- 07-5901 (discontinued DG Motorsports). If a hardtop is used, latches shall be replaced with positive fasteners. OBD2
requirement does not apply. Ballast box may be removed. ND2s with sequential gearbox allowed +100 lbs.
#39274 from Touring Committee · Rule change · TB 25-11 (2025-11 Fastrack)
fasterT2 Spec Corvette to 3200 lbs; Mustang 11-14 restrictor 60→62mm; Mustang 2015-23 tyre 295→315; 996 weights down to 3050/3000 lbs; 997.2 models restrictor 60→65mm, weights reduced 50 lbs.In T2 Spec Lines, Spec Corvette, change as follows:
Weight: "SC3200 SC+- 3300 See notes section"
Notes: "The following “Spec Corvette +” allowances are permitted with a base weight of 3300 lbs:"
In T2 Spec Lines, Ford Mustang GT 5.0L (11-14), change Restrictor as follows:
"60mm 62mm flat plate restrictor"
In T2 Spec Lines, Ford Mustang GT 5.0L (2015-23), change Tire Size as follows:
"295 315"
In T2 Spec Lines, Porsche 911 / 996 (98-05), change Weight as follows:
"3600: 3150 3050
3400: 3000"
In T2 Spec Lines, Porsche Carrera S 997.2 (06-08), change as follows:
Restrictor: "60mm 65mm FPR"
Weight: "3225 3175"
In T2 Spec Lines, Porsche 911 / Carrera S 997.2 (09-12), change as follows:
Restrictor: "60mm 65mm FPR"
Weight: "3300 3250
In T2 Spec Lines, Porsche 911 / 997.2 GTS (09-12), change as follows:
Restrictor: "60mm 65mm FPR"
Weight: "3400 3350"
#39282 from Touring Committee · Rule change · TB 25-11 (2025-11 Fastrack)
slowerT2 Spec Corvette rev limit set to 7100 rpm.In T2 Spec Lines, Spec Corvette, add to Notes the following:
"7) up to 7100 rpm Rev limit."
#38523 from Joe Aquilante · Rule change · TB 25-12 (2025-12 Fastrack)
fasterT2 Ford Mustang Boss 302 restrictor opens 56mm to 63mm; Mustang GT 5.0L 60mm to 65mm.In T2 Spec Lines, Ford Mustang Boss 302 (12-13), change Restrictor as follows:
"56mm 63mm flat plate restrictor"
In T2 Spec Lines, Ford Mustang GT 5.0L (11-14), change Restrictor as follows:
"60mm 65mm flat plate restrictor"
#39021 from Van Hunter · Rule change · TB 25-12 (2025-12 Fastrack)
fasterT2 Chevrolet Camaro SS/1LE (10-15) minimum weight reduced to 3575 lbs.In T2 Spec Lines, Chevrolet Camaro SS/1LE (10-15), change Weight as follows:
"3625 3575"
#39346 from Andrew Aquilante · Rule change · TB 25-12 (2025-12 Fastrack)
slowerT2 Ford Mustang Challenge Dark Horse R (2024-) weight increases to 3825 lbs, displacement grows to 5038cc, tire width expands to 315.In T2 Spec Lines, Ford Mustang Challenge, change as follows:
Car: "Ford Mustang Challenge Darkehorse/Cup Dark Horse R (2024-)
Displacement: "92.220 x 92.7 / 4957 93.0mm x 92.7mm 5038cc"
Weight: "3650 3775 3825"
Restrictor: "2 x 55 mm"
Tires: "295 315"
Notes: "Safety and camera equipment is unrestricted."
"**This car spec line is not eligible for the Runoffs until it has competed in 3 Super Tour events.**
#39370 from Aaron Stehly · Rule change · TB 26-01 (2026-01 Fastrack)
neutralT2, T3, T4 cars may relocate under-dash electronics and fuse boxes for access after roll cage installation.In GCR, Section 9.1.9.2.D.9.d, add the following:
"8. Under-dash electronics including computers, modules and fuse boxes may be relocated so they can be easily accessed after
roll cage installation."
#39426 from John Heinricy · Rule change · TB 26-01 (2026-01 Fastrack)
fasterT2 Cadillac CT4-V Blackwing minimum weight drops 50 lbs to 3750.In T2 Spec Lines, Cadillac CT4-V Blackwing (2022-), change Weight as follows:
"3800 3750"
#39472 from Brian LaCroix · Rule change · TB 26-01 (2026-01 Fastrack)
fasterT2 C6 Corvette LS2 restrictor increases from 67mm to 80mm FPR.In T2 Spec Lines, Chevrolet Corvette C6 Coupe / Grand Sport (05-13), change Restrictor as follows:
"LS2: 67mm 80mm FPR LS3: 56mm FPR"
#39490 from Scotty B White · Rule change · TB 26-01 (2026-01 Fastrack)
fasterT2 Dodge Viper SRT10 coupe weight reduced from 3675 lbs to 3650 lbs.In T2 Spec Lines, Dodge Viper SRT10 incl. coupe (03-06), change Weight as follows:
"3675 3650"
#39499 from Andrew Aquilante · Rule change · TB 26-01 (2026-01 Fastrack)
unclearT2 Ford Mustang GT 5.0L 15-23 permits Ford Track/Performance Package aero parts M-16600-FP and M-16601-MPP.In T2 Spec Lines, Ford Mustang GT 5.0L (2015-2023), add to Notes the following:
"Ford Track/Performance Package parts permitted. Performance pack aero parts #M-16600-FP and #M-16601-MPP permitted."
#39503 from David Mead · Rule change · TB 26-01 (2026-01 Fastrack)
neutralT4 Performance now permits 1-piece alternative rotors matching spec line sizes; alternate brake kits allowed same.In GCR, Section 9.1.9.2.D.6.a.6., change as follows:
"In T2-Performance alternative rotors, including 2 piece rotors are permitted. Rotors must be within 5% of OE diameter or a
maximum diameter of 360mm.
In T3- Performance alternative rotors, including 2 piece rotors are permitted with a maximum diameter of 360mm.
T4- Performance alternative 1-piece rotors are permitted but rotors must meet the sizes listed in the spec line. Spec lines
showing alternate brake kits are also permitted to use 1-piece performance alternative rotors of the same size."
#38991 from Jimmy Cabrera · Rule change · TB 26-02 (2026-02 Fastrack)
neutralBMW 435i (2014-2017) added to T2 with 40mm restrictor, 3400 lbs minimum weight.In T2 Spec Lines, classify as follows BMW 435I (2014-2017):
A specification table follows in the original; it is not shown here.
#39296 from Greg Nelson · Rule change · TB 26-02 (2026-02 Fastrack)
neutralNissan Z including Nismo added to T2 with 38mm restrictor, 3600 lbs base and 3650 lbs Nismo.In T2 Spec Lines, classify Nissan Z incl. Nismo as follows:
A specification table follows in the original; it is not shown here.
#39607 from David Mead · Rule change · TB 26-02 (2026-02 Fastrack)
fasterT2-T4 adjustable toe links now allow performance alternative bushings and spherical bearings, previously prohibited except in specified examples.In GCR, Section 9.1.9.D.5.a.1., change as follows:
"T2-T4: A maximum of 3.5 degrees of negative camber is allowed on front and rear suspensions. Spec line part(s) may not be
modified to increase caster and camber. Strut suspensions may adjust camber and caster by the use of eccentric bushings,
eccentric bolts (crash bolts) at the strut-to-spindle, and/or by use of slotted adjustment plates at the top of the strut mounting
plate. If upper strut slotted adjustment plates are used, they shall be located on existing chassis structure, utilizing the
unmodified manufacturer’s original bolt holes and may not serve as reinforcement for that structure. Slotted adjustment plates
(strut camber plates) may incorporate a single spherical bearing (spherical bushing) and a ball thrust bearing per strut tower. On
other forms of suspension, camber and caster adjustment may be achieved by the use of shims and/or eccentric
bushings. Adjustable toe links with spherical bearings are permitted and may serve no purpose other than adjusting toeangle. Adjustable toe links are permitted. They are allowed to have performance alternative bushings and spherical bearings.
They may serve no purpose other than adjusting toe angle. Spherical bearings/bushings are not permitted in T2-T4 except for the
specific examples listed in the class rules or vehicle spec line."
#39702 from Vito Jin · Rule change · TB 26-02 (2026-02 Fastrack)
neutralT2-TCR adds Link & Co 03 TCR and MG6 TCR, both 3000 lbs, 90% power, 275 max tire width.In T2-TCR Spec Lines, classify Link & Co 03 TCR (2019-2025) and MG6 TCR (2019-2022) as follows:
T2-TCR Transmission Power Level Weight(lbs) Notes
Link & Co 03
TCR (2019-
2025)
SEQ 90% 3000 DOT approved tires with maximum section width
of 275. T2-TCR splitter and valance must comply
with 9.1.4.D.3.f. T2-TCR chassis ride height must
comply with 9.1.4.1.A.1
MG6 TCR
(2019-2022)
SEQ 90% 3000 DOT approved tires with maximum section width
of 275. T2-TCR splitter and valance must comply
with 9.1.4.D.3.f. T2-TCR chassis ride height must
comply with 9.1.4.1.A.1
#39861 from Harley Kaplan · Rule change · TB 26-03 (2026-03 Fastrack)
unclearT2 BMW M235iR pre-2016 alternative tune permitted note removed.In T2 Spec Lines, BMW M235iR (-2016), change Notes as follows:
"Alternative tune permitted."
What the rules allowed changed as listed; this does not say what any particular car ran.