FV + T2 + T1 at Buttonwillow Raceway Park

2023-03-01 T2 Honda Civic Type R Tire Size Increase

#33672 from Marty Grand · Rule change · TB 23-03 (2023-03 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Honda Civic Type-R (2017-), change Tire Size as follows:
"275 295"

2023-03-01 T1 Sequential Gearbox Limitations in T1

#33691 from David Mead · Rule change · TB 23-03 (2023-03 Fastrack)

Summary

As printed in Fastrack

In GCR, Section 9.1.9.1.I.4., change as follows:
"Aftermarket sequential transmissions are permitted. Cars with aftermarket sequential shift transmissions shall utilize a 1:1 (or
greater/overdriven) ratio in top gear. Transmission location must be OEM. Maximum bellhousing length is 10 inches. Cars that
don’t use an aftermarket sequential transmission may decrease their competition weight by 100 lbs."

2023-03-01 T1 T1 GT4 adjustments

#33786 from Touring Committee · Rule change · TB 23-03 (2023-03 Fastrack)

Summary

As printed in Fastrack

In Touring 1 - GT4 Spec Lines, change Min. Weight with Driver (LBS) as follows:
Aston Martin Vantage AMR GT4: "3575 3450"
Audi R8 GT4: "3550 3425"
BMW M4 GT4: "3500 3375"
Ford Mustang GT4: "3550 3425"
Maclaren 570S GT4: "3450 3325"
Mercedes AMG GT4: "3450 3325"
Porsche 718 Cayman GT4 CS MR: "3200 3075"

2023-03-01 T1 Sunset of pre 2023 Touring 1 Rules.

#33916 from Touring Committee · Rule change · TB 23-03 (2023-03 Fastrack)

Summary

As printed in Fastrack

In T1, GCR Section 9.1.9.1.A., remove in its entirety.
In T1 Spec Lines, remove in its entirety.

2023-04-01 T1 Clarification for Camaro Gen5 2010-2015

#33739 from Clark Nunes · Rule change · TB 23-04 (2023-04 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Lines, Chevrolet Camaro Gen 5 ('10-'15) Including SS, Z28, classify Spec Line Number 1135 as follows:

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

2023-04-01 T2 Allowance of any nonmetallic bushing material in T2

#33833 from Tyler Quance · Rule change · TB 23-04 (2023-04 Fastrack)

Summary

As printed in Fastrack

In Touring (T2-T5) Category Specifications, GCR Section 9.1.9.2.D.5.c.1., change as follows:
"All T2-T3 cars are allowed to replace OEM upper and lower control arm bushings with polyurethane, or delrin, or alternate
synthetic materialbushings."

2023-04-01 T2 Allow Adjustable stabilizer bar links

#33861 from John Heinricy · Rule change · TB 23-04 (2023-04 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Cadillac CT4-V Blackwing (2022-), add to Notes as follows:
"Adjustable sway bar end links permitted."

2023-05-01 T2 C5 Z06 Straight Line Speed

#33575 from Charlie Abell · Rule change · TB 23-05 (2023-05 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Chevrolet Corvette C-5 Incl. Fxd Cpe (98-04) Z06 (hardtop) (01-04), change Weight (lbs) as follows:
"3425 w/53mm 56mm flat plate restrictor)
3350 (w/58mm flat plate restrictor, only permitted when using OEM Wheels and Stock Brakes)"

Applies to Chevrolet Corvette on this page: Josh Carroll, David Holmes, Patrick Howe, Evan Gold, Greg Nester, Michael Cheney, Luis Martinez

2023-05-01 T1 T1 GT4 adjustments

#33786 from Touring Committee · Rule change · TB 23-05 (2023-05 Fastrack)

Summary

As printed in Fastrack

RM 23-04 – Touring 1 weights dated 3/21/2023
As an E&O to the February Fastrack, in T1-GT4 leave weights as follows:
Aston Martin Vantage AMR GT4: 3575
Audi R8 GT4: 3550
BMW M4 GT4: 3500
Ford Mustang GT4: 3550
Maclaren 570S GT4: 3450
Mercedes AMG GT4: 3450

2023-05-01 T1 Touring 1 Tire Sizes

#34191 from Club Racing Board · Rule change · TB 23-05 (2023-05 Fastrack)

Summary

As printed in Fastrack

RM 23-05 – Touring 1 Tire Sizes dated 3/21/2023
In T1-GT4 change tire sizes as follows:
Maclaren 570S GT4 (f)285 315
(r)315
Mercedes AMG GT4 (f)275 315
(r)315

2023-06-01 T1 Request to reinstate T1 S197 Mustang

#34048 from David Mead · Rule change · TB 23-06 (2023-05 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Lines, classify Ford Mustang S197 (05-14) Includes GT, Boss302, 302S, 302R, FR500C, FR500S as follows:

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

Applies to Ford Mustang on this page: Pratt Cole

2023-06-01 T2 2009 Porsche Cayman Classing Request

#34147 from Lisa Hunsicker · Rule change · TB 23-06 (2023-06 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Porsche Cayman S (06-08), change year as follows:
"Porsche Cayman S (06-08) (06-09)"

2023-07-01 T1 Gen 5 Camaro Engine

#33875 from Matt Spicuzzi · Rule change · TB 23-06 (2023-07 Fastrack)

Summary

As printed in Fastrack

In T1-NEW Spec Lines, Chevrolet Camaro Gen 5 (10-15) Including SS, Z28, classify Spec Line Number 1131 and 1136 as follows:

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

2023-07-01 T1 Inquiry to letter #33682

#34071 from Andrew Aquilante · Rule change · TB 23-06 (2023-07 Fastrack)

Summary

As printed in Fastrack

In T1 NEW Spec Lines, Chevrolet Camaro Gen 5 (10-15) Including SS, Z28, change Engine Notes as follows:
1130: "May resleeve any LS block to LS3 bore/ stroke for Engine replacement. May resleeve to stock parameters for engine repair
or replacement."
1135: "May resleeve any LS block to LS3 bore/ stroke for Engine replacement.May resleeve to stock parameters for engine repair
or replacement."
In T1 NEW Spec Lines, Chevrolet Corvette C5 (‘97-’04) – Includes: Z06, Coupe, Convertible, change Engine Notes as follows:
1132: "May resleeve any LS block to LS3 bore/ stroke for Engine replacement. May resleeve to stock parameters for engine repair
or replacement."

2023-07-01 T1 Viper Cleanup

#34107 from Scotty B White · Rule change · TB 23-06 (2023-05 Fastrack)

Summary

As printed in Fastrack

In T1 NEW Spec Lines, Dodge Viper ACR/ACR-X Spec Line 1360, change Required Restrictor as follows:
"50mm 60mm flat plate"

2023-07-01 T1 Viper 8300 OEM FPR Size

#34268 from Scotty B White · Rule change · TB 23-06 (2023-05 Fastrack)

Summary

As printed in Fastrack

In T1 NEW Spec Lines, Dodge Viper ACR/ACR-X Spec Line 1370, change Required Restrictor as follows:
"(2) 47mm 55mm flat plates"
In T1 NEW Spec Lines, Dodge Viper ACR/ACR-X Spec Line 1390, change Required Restrictor as follows:
"(2) 60mm 55mm flat plates"

2023-07-01 T2 370Z Obsolete Parts & NISMO Alternatives to SPL Parts

#34297 from Zach Hayward · Rule change · TB 23-06 (2023-05 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Nissan 370Z (09-17) / 370Z NISMO Edition (09-17), change Notes as follows:
5300S-SS370 T-2 spring kit allowed; 54600-SS370 T-2 front and rear sway bar kit allowed. 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 - Part #14002-SS370. 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 toe arms #SPL RTA Z34, 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. 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.

2023-07-01 T1 Ford Mustang S197 (05-14) Clarification

#34450 from Club Racing Board · Rule change · TB 23-06 (2023-05 Fastrack)

Summary

As printed in Fastrack

In T1-NEW Spec lines, Ford Mustang S197 (05-14) Includes GT, Boss302, 302S, 302R, FR500C, FR500S, change Notes as follows:
"OEM 8.8 Differential Housing"

2023-08-01 T1 C5 Approved Aero That Was Mistakenly Deleted

#34374 from Joe Aquilante · Rule change · TB 23-08 (2023-08 Fastrack)

Summary

As printed in Fastrack

In T1 NEW Spec Lines, Chevrolet Corvette C5 (‘97-’04) – Includes: Z06, Coupe, Convertible, Spec Lines 1132-1138, add to Notes
as follows:
"Any option of OEM Bodywork parts may be used as basis for aero measurements. Rear spoiler max 5” Above bumper allowed.
+50lbs. The following parts are permitted, with a 50lb decrease from base weight, in lieu of the aero options permitted in
9.1.9.1.B: (C7Carbon Rear- Spoiler CCC5 EX- RSB-GB, Vented Front Splitter CCC5-FS-GB, Side Skirts CCC5 SS-GB.)"

2023-08-01 T2 Rules Clarification for Mazda RX8 Spec Line

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

Summary

As printed in Fastrack

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

2023-08-01 T1 Why no Camaro?

#34421 from Scotty B White · Rule change · TB 23-08 (2023-05 Fastrack)

Summary

As printed in Fastrack

In T1 GT4 Spec Lines, classify Chevrolet Camaro GT4-R as follows:

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

2023-08-01 T2 rule book corrections

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

Summary

As printed in Fastrack

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

2023-08-01 T2 Corvette LS2 Restrictor Plate Adjustment

#34456 from Brian LaCroix · Rule change · TB 23-08 (2023-05 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Chevrolet Corvette C6 Coupe / Grand Sport (05-13), change Notes as follows:
"LS2: 58mm 60mm flat plate restrictor is required."

2023-08-01 T1 Request to Remove Expiration from T1 spec lines #1350 & #1370

#34470 from Scotty B White · Rule change · TB 23-08 (2023-05 Fastrack)

Summary

As printed in Fastrack

In T1 NEW Spec Lines, Dodge Viper ACR / SRT RT-10, change Spec Line Number as follows:
"1350 *Spec line Expires 12/23*"
In T1 NEW Spec Lines, Dodge Viper ACR/ACR-X, change Spec Line Number as follows:
"1370 *Spec line Expires 12/23*"

2023-08-01 T1 Remove

#34475 from Touring Committee · Rule change · TB 23-08 (2023-05 Fastrack)

Summary

As printed in Fastrack

In T1 GT4 Spec Lines, Maclaren 570S GT4, Spec Line Number 4050, remove Notes as follows:
"**NOT YET ELLIGIBLE FOR RUNOFFS COMPETITION (Q.2)**"
In T1 GT4 Spec Lines, Mercedes AMG GT4, Spec Line Number 4060, remove Notes as follows:
"**NOT YET ELLIGIBLE FOR RUNOFFS COMPETITION (Q.2)**"
T1 GT4 Spec Lines, Porsche 718 Cayman GT4 CS MR, Spec Line Number 4070, remove Notes as follows:
"**NOT YET ELLIGIBLE FOR RUNOFFS COMPETITION (Q.2)**"

2023-08-01 T1 Error in T1 GT4 numbering scheme-

#34578 from Touring Committee · Rule change · TB 23-08 (2023-05 Fastrack)

Summary

As printed in Fastrack

In T1 GT4 Spec Lines, BMW M4, change Spec Line Number as follows:
"4050 4030"

2023-08-01 T2 Ride Height Correction for the T3 Solstice.

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

Summary

As printed in Fastrack

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

2023-08-01 T2 Blacking Cadillac Fuel Capacity

#34624 from John Heinricy · Rule change · TB 23-08 (2023-05 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Cadillac CT4-V Blackwing (2022-), add to Notes the following:
"Radium fuel surge tank permitted. Radium tank and all associated hoses must be located behind a fireproof bulkhead or in the
engine compartment."

2023-12-01 T1 New T1 add spec line for C5 corvette LS2 engines (Copy from C6)

#33764 from Craig Anderson · Rule change · TB 23-12 (2023-09 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Lines, classify Chevrolet Corvette C5 (‘97-’04) – Includes: Z06, Coupe, Convertible as follows:

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

2023-12-01 T1 2004 - 2006 Pontiac GTO Re-Integration Back Into T1

#34403 from Ed Gless · Rule change · TB 23-12 (2023-12 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Lines, classify Pontiac GTO 2006-2009 as follows:

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

Applies to Pontiac GTO on this page: Ed Gless

2023-12-01 T1 Request to Classify Porsche 997-1 GT3 Cup

#34561 from Scotty B White · Rule change · TB 23-12 (2023-12 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Lines, delete the Porsche 996 GT3 Cup car from the standard spec lines and classify "Homologated car" section as
follows:
T1 – Homologated Cars

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

2023-12-01 T1 C7 Corvette Rule Change Request

#34897 from Heath Karl · Rule change · TB 23-12 (2023-09 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Lines, classify Chevrolet Corvette C7 (14 - 19) - Includes Z51, Grandsport as follows:
T1 – Homologated Cars

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

2023-12-01 T1 Camaro Gen 5 Weight Reduction Due to Competitive Disadvantage

#35092 from Clark Nunes · Rule change · TB 23-12 (2023-09 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Lines, Gen 5 Camaro, change as follows:
Spec Line 1130 - Minimum Weight "3550 3475"
Spec Line 1135 - Minimum Weight "3550 3475"
Restrictor Required "70mm 75mm-Flat Plate"

2023-12-01 T1 Addendum to Letter #35022: Drivetrain Rule

#35105 from Clyde Greene · Rule change · TB 23-12 (2023-09 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Lines, Aston Martin Vantage, add to Chassis Notes as follows:
"OEM Sportshift II transmission permitted."

2023-12-01 T2 M2 CS RACING

#35122 from Clark Giguiere · Rule change · TB 23-12 (2023-12 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, BMW M2 CS Cup 2020-, add to Notes the following:
"Hood vents conforming to 9.1.9.2.D.8.a.7 are permitted."

2023-12-01 FV FV Wheel Bearing Clarification

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

Summary

As printed in Fastrack

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

2024-01-01 T2 Rebalance Blackwing Cadillac T2

#35079 from John Heinricy · Rule change · TB 24-01 (2024-01 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Cadillac CT4-V Blackwing (2022-), change as follows:
Wheel size: "(F) 18 x 10 (R) 18 x 11"
Notes: "Sway bars permitted 35mm (f), 30mm (r)"

2024-01-01 T2 M2 CS RACING

#35130 from Clark Giguiere · Rule change · TB 24-01 (2024-01 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, BMW M2 CS Cup (2020-), change weight as follows:
"3600 3550"
In T2 Spec Lines, BMW M235iR (-2016), change weight as follows:
"3350 3300"

2024-01-01 T2 Spec Corvette in T2

#35139 from David Sanders · Rule change · TB 24-01 (2024-01 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Spec Corvette, change as follows:
Weight: "3375 3200"
Notes: "Cars must comply with all Spec Corvette rules dated 3-1-2 1 11-28-22 including fuel and tires. No tire treatment or
rubber softeners are permitted. T2 requirements of 3.75” min ride height and 53mm flat plate restrictor required. Any 295 DOT
tire approved with +200lb. Limited to 380 HP. Nankang NS-2R Tires conforming to Spec Corvette rules are required."

2024-01-01 T2 T2 Viper BoP

#35155 from Scotty B White · Rule change · TB 24-01 (2024-01 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Dodge Viper SRT-10 incl. coupe (03-06), change Tire Size as follows:
"(F) 315/35 (R) 345/30 335/30"

2024-01-01 T2 BOP Adjustment for 5.0L Mustangs

#35156 from Kurt Rezzetano · Rule change · TB 24-01 (2024-01 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Ford Mustang GT 5.0L (11-14), change as follows:
Min weight: "3500 3575"
Notes: "58mm 60mm flat plate restrictor required."
In T2 Spec Lines, Ford Mustang GT 5.0L (15-17), change as follows:
Min Weight: "3600 3650"
Notes: "58mm 59mm flat plate restrictor required."
In T2 Spec Lines, Ford Mustang GT5.0L(2018-), change as follows:
Min Weight: "3600 3650"

Applies to Ford Mustang on this page: Scotty B White

2024-01-01 T2 Take at Look at T-2 BOP

#35161 from Joe Aquilante · Rule change · TB 24-01 (2024-01 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Chevrolet Camaro, 1LE (2016-), change as follows:
Min Weight: "3550 3500"
Notes: "56mm 58mm flat plate restrictor required."

2024-01-01 T1 GT4 batch adjustment in T1

#35162 from Touring Committee · Rule change · TB 24-01 (2024-01 Fastrack)

Summary

As printed in Fastrack

In GCR, Section 9.1.9.1.A.T., change as follows:
"Tires- Tires must conform to GCR section 9.3.TIRES and als o must conform to spec line requirements. DOT approved tires are
permitted. Slicks conforming to the spec line are permitted."
In Touring 1 - Homologated Cars Spec Lines, 4100- BMW M2 ClubSport Racing, change Must Conform To as follows:
"Tires conforming to SRO TCX rules allowed. Must meet factory specs."
In Touring 1 - Homologated Cars Spec Lines, 4120- Ford Mustang FP350S 2017, change as follows:
Must Conform To: "Tires conforming to Trans Am SGT tire rules allowed Must meet factory specs."
Chassis Notes: "VIN not required. Additional permitted allowances: DOT tires required. Other consumables are open, alternate

2024-01-01 T2 C5 Corvette Spec Line Oversight

#35169 from Carl Fung · Rule change · TB 24-01 (2024-01 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Chevrolet Corvette C-5 Incl. Fxd Cpe (98-04) Z06 (hardtop) (01-04), change as follows:
Min Weight: :3425 w/56mm flat plate restrictor)"
Notes: "59mm flat plate restrictor required."
In T2 Spec Lines, Chevrolet Corvette C6 Coupe / Grand Sport (05-13) change Notes as follows:
"LS2: 60mm 63mm flat plate restrictor is required. LS3: 50mm 53mm flat plate restrictor is required."

Applies to Chevrolet Corvette on this page: Josh Carroll, David Holmes, Patrick Howe, Evan Gold, Greg Nester, Michael Cheney, Luis Martinez

2024-01-01 T1 Remove T1 spec lines

#35192 from Touring Committee · Rule change · TB 24-01 (2024-01 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Lines, delete the following spec line numbers in their entirety:

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

2024-01-01 T2 Requested Update of Model Years of 370Z

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

Summary

As printed in Fastrack

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

2024-02-01 T2 2015+ Mustang Sway Bar and A-Arm Request

#35154 from Scotty B White · Rule change · TB 24-02 (2024-01 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Ford Mustang GT 5.0L (15-17), add to Notes the following:
"BMR rear upper control arm camber links part #UTCA064 permitted."

Applies to Ford Mustang on this page: Scotty B White

2024-02-01 T1 C8 Corvette T1 Restrictor Plate Request

#35213 from Garry Crook · Rule change · TB 24-02 (2024-02 Fastrack)

Summary

As printed in Fastrack

In T1 NEW Spec Lines, Chevrolet Corvette C8 (20- 23) - Includes Z51, #1210, change Required Restrictor as follows:
"70mm 72mm - Flat Plate"

2024-02-01 T2 Brake Kits

#35245 from David Woodle · Rule change · TB 24-02 (2024-01 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, add to Notes the following:
Chevrolet Camaro SS (98-02): “Four or six piston front calipers allowed.”
Chevrolet Camaro, 1LE (2016-): “Four or six piston front calipers allowed.”
Chevrolet Corvette C-5 Incl. Fxd Cpe (98-04) Z06 (hardtop) (01-04): “Four or six piston front calipers allowed.”
Chevrolet Corvette C6 Coupe / Grand Sport (05-13): “Four or six piston front calipers allowed.”
Chevrolet Corvette Z06 (06-12): “Four or six piston front calipers allowed.”
Pontiac Firebird (98-02): “Four or six piston front calipers allowed.”
Pontiac Solstice GXP Coupe/Convertible (07-09): “Four or six piston front calipers allowed.”

2024-02-01 T2 More Car Lightening Stuff

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

Summary

As printed in Fastrack

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

2024-02-01 T2 Inclusion of B-C spec cars in T4

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

Summary

As printed in Fastrack

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

2024-02-01 T2 Runoffs wording on Caddy in T2

#35377 from Touring Committee · Rule change · TB 24-02 (2024-01 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Cadillac CT4-V Blackwing(2022-), change Notes as follows:
"THIS CAR DOES NOT QUALIFY FOR SCCA RUNOFFS COMPETITION UNTIL IT HAS BEENREPRESENTED IN 3 SCCA SUPER
TOUR EVENTS."

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

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

Summary

As printed in Fastrack

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

2024-02-01 T1 The Cars Have Expired

#35379 from Touring Committee · Rule change · TB 24-02 (2024-02 Fastrack)

Summary

As printed in Fastrack

In GCR Contents, change as follows:
"9.1.9.1 TOURING (T1) CATEGORY NEW
T1 NEW"
In GCR, Section 9.1.9.1.Touring (T1) NEW Category Specifications, change as follows:
"9.1.9.1.Touring (T1) NEW Category Specifications"
In T1 NEW Spec Lines, change as follows:
"9.1.9.1.A T1 NEW Spec Lines"
"T1 NEW"

2024-02-01 T2 Reply to letter #35161 and #31661

#35384 from Andrew Aquilante · Rule change · TB 24-02 (2024-02 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Chevrolet Camaro, 1LE (2016-), change as follows:
Min Weight: "3500 3575"
Notes: "58mm 60mm flat plate restrictor required"

2024-03-01 T2 Reorganize Spec Lines

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

Summary

As printed in Fastrack

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

2024-03-01 T1 9.1.9.1 T1 new category item/ line 26 rule to expire Jan 1 2023

#35411 from Geoffrey Hegel · Rule change · TB 24-03 (2024-03 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Lines, classify Pontiac GTO 2006-2009 as Spec Line Number 1590 as follows:

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

2024-03-01 T2 370Z Brake Rotor Size Correction

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

Summary

As printed in Fastrack

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

2024-03-01 T2 Letter #35154 2018+ Mustang GT Expansion

#35488 from Michael Kamalian · Rule change · TB 24-03 (2024-03 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Ford Mustang GT 5.0L (2018-), add to Notes as follows:
"BMR rear upper control arm camber links part #UTCA064 permitted."

Applies to Ford Mustang on this page: Scotty B White

2024-04-01 T1 Honda S2000

#35582 from Touring Committee · Rule change · TB 24-04 (2024-04 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Lines, classify Honda S2000 as follows:

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

2024-04-01 T2 Brake Request for 2009 Porsche Cayman

#35723 from Jason Ott · Rule change · TB 24-04 (2024-04 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Porsche Cayman S (06-09), add to Notes the following:
"The following brake kit is allowed in its entirety with a 50 lb penalty- (f) StopTech ST60 (83.788.6700), rotor size 355X32
(r) StopTech ST40 (83.799.0046), rotor size 332X32."

2024-05-01 T2 Allow T4 and T3 RX8 to Disable/Remove Factory Oil Inj.

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

Summary

As printed in Fastrack

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

2024-05-01 T2 Competition Adjustment Request/Wheel Size of E46

#35895 from David Newman · Rule change · TB 24-05 (2024-05 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, BMW M3 (01-06), change Max Wheel Size (inch) as follows:
"18 x 9 18 x 10"

2024-05-01 T2 Driveshafts

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

Summary

As printed in Fastrack

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

2024-05-01 T1 Please Expedite classing the C63 Mercedes

#35987 from Touring Committee · Rule change · TB 24-05 (2024-05 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Lines, classify Mercedes AMG-C63 S (2023) as follows:

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

2024-07-01 T2 Mustang T2/T3

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

Summary

As printed in Fastrack

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

Applies to Ford Mustang on this page: Scotty B White

2024-07-01 T2 S550 Brakes

#35926 from Scotty B White · Rule change · TB 24-07 (2024-07 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Ford Mustang Ecoboost 2.3 (2015-), add to Notes the following:
"100LB for Mustang S550 2015-17 5.0 Gen2 and 2018-23 5.0. Gen3 reduce weight by 100Lb when using 4 piston stock
or Brembo brakes with 355mm rotors."

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

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

Summary

As printed in Fastrack

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

Applies to Ford Mustang on this page: Scotty B White

2024-07-01 T2 request for allowance of 6 piston calipers for T2 C5 corvettes

#36126 from Joe Aquilante · Rule change · TB 24-07 (2024-07 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, add to Notes the following:
Chevrolet Camaro SS (98-02): Four or six piston front calipers allowed.
Chevrolet Camaro, 1LE (2016-): Four or six piston front calipers allowed.
Chevrolet Corvette C-5 Incl. Fxd Cpe (98-04) Z06 (hardtop) (01-04): Four or six piston front calipers allowed.
Chevrolet Corvette C6 Coupe / Grand Sport (05-13): Four or six piston front calipers allowed.
Chevrolet Corvette Z06 (06-12): Four or six piston front calipers allowed.
Pontiac Firebird (98-02): Four or six piston front calipers allowed.
Pontiac Solstice GXP Coupe/Convertible (07-09): Four or six piston front calipers allowed.

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

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

Summary

As printed in Fastrack

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

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

2024-08-01 T2 Errors

#36214 from Touring Committee · Rule change · TB 24-08 (2024-08 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Chevrolet Corvette C6 Coupe / Grand Sport (05-13), change Required Restrictor as follows:
"LS2: "53 63mm flat plate restrictor"
In T2 Spec Lines, Chevrolet Camaro, 1LE (2016-), change as follows:
Min Weight: "3575 3500"
Required Restrictor: "60mm FRP 58mm flat plate restrictor"

2024-08-01 T2 Subaru Appeal

#36258 from Anthony Piselli III · Rule change · TB 24-08 (2024-08 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Subaru Impreza WRX STi (03-07), change Notes as follows:
"**This Spec line will expire 12/31/24, Please submit to appeal**"
In T2 Spec Lines, Subaru Impreza WRX STi (08-11), change Notes as follows:
"**This Spec line will expire 12/31/24, Please submit to appeal**"

2024-08-01 T2 S550 Brakes

#36571 from Club Racing Board · Rule change · TB 24-08 (2024-08 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Ford Mustang GT 5.0L (15-17), add to Notes as follows:
"Mustang S550 2015-17 5.0 Gen2 and 2018-23 5.0. Gen3 reduce weight by 100Lb when using 4 piston stock or Brembo brakes
with 355mm rotors."
In T2 Spec Lines, Ford Mustang GT 5.0L (18 -), add to Notes as follows:
"Mustang S550 2015-17 5.0 Gen2 and 2018-23 5.0. Gen3 reduce weight by 100Lb when using 4 piston stock or Brembo brakes
with 355mm rotors."
In T2 Spec Lines, Ford Mustang Ecoboost 2.3 (2015-), change Notes as follows:
"Reduce weight by 100Lb when using either stock 355mm 4 piston brakes or m2300s 355mm 4 piston Ford brake kit."

Applies to Ford Mustang on this page: Scotty B White

2024-10-01 FV Disc Brakes

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

Summary

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."

2024-11-01 T2 Spec Corvette Change for T2

#37127 from Joe Aquilante · Rule change · TB 24-11 (2024-11 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Spec Corvette, change Notes as follows:
"Cars must comply with all Spec Corvette rules dated 11-28-22 including fuel and tires. No tire treatment or rubber softeners are
permitted. Limited to 380 HP. Nankang NS-2R Tires conforming to Spec Corvette rules are required or a 295 R compound DOT
tire."

2024-12-01 T1 Changes to T1 Tires for GT4 and Other Cars

#35383 from Andrew Aquilante · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

As printed in Fastrack

In T1 GT4 Spec Lines, change Tire Size as follows:
Aston Martin Vantage AMR GT4 4010: "315 DOT, 305/660 Non-DOT"
Audi R8 GT4 - Spec Line #4020: "315 DOT, 305/645 Non-DOT"
BMW M4 GT4 - Spec Line #4030: "315 DOT, 305/660 Non-DOT"
Chevrolet Camaro GT4-R- Spec Line #4035: "315 DOT, 305/680 Non-DOT"
Ford Mustang GT4 - Spec Line #4040: "315 DOT, 315/680 Non-DOT"
Mclaren 570S GT4 - Spec Line #4050: "315 DOT, 305/645 Non-DOT"
Mercedes AMG GT4 - Spec Line #4060: "315 DOT, 305/660 Non-DOT"

2024-12-01 T1 G82 M4 GT4 inclusion in T1

#35864 from Denny Stripling · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

As printed in Fastrack

In T1 GT4 Spec Lines, SL#4030, change as follows:
Model: "BMW M4 GT4 (F82)"
Performance Control: "Gold power stick Red power stick"
In T1 GT4 Spec Lines, classify BMW M4 GT4 (G82) as follows:

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

2024-12-01 T2 Redundant Verbiage Regarding Mustang Spec Lines for Driveshaft

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

Summary

As printed in Fastrack

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

2024-12-01 T1 Alt. Clutch Allowance

#36606 from Hugh Stewart · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Lines, SL# 1050, change add to Engine Notes the following:
"5.5 inch clutch permitted."

2024-12-01 T1 BOP Changes Need Updates

#36667 from Joe Rainey · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

As printed in Fastrack

In T1 GT4 Spec Lines, Spec Line 4020, change as follows:
Performance Control: Power level 2020, 44mm 45mm SRO compliant restrictor"
Min. Weight with driver (LBS): "3550 3400"

2024-12-01 T2 Request Less Restriction for Ls-3 Engined C6 Corvette

#36810 from Joe Aquilante · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Chevrolet Corvette C6 Coupe / Grand Sport (05-13), change Restrictor Required as follows:
"LS3: 53mm 56mm flat plate restrictor"

2024-12-01 T2 Fuel Emissions Components

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

Summary

As printed in Fastrack

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

2024-12-01 T2 fix brake wording

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

Summary

As printed in Fastrack

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

2024-12-01 T2 Evaporative emissions systems

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

Summary

As printed in Fastrack

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

2024-12-01 T1 Request Ford Performance Darkhorse R in T1

#37136 from Christopher Childs · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

As printed in Fastrack

In T1-Homologated Cars Spec Line, classify Mustang Darkhorse R (Mustang Challenge) as follows:
T1 – Homologated Cars

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

2024-12-01 T2 Move Spec Boxster to T4

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

Summary

As printed in Fastrack

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

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

2024-12-01 T2 Corvette Wheels

#37169 from Brian LaCroix · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Chevrolet Corvette C6 Coupe / Grand Sport (05-13), change Max Wheel Size as follows:
"18 x 10 11 (F) 19 x 11 (R) or 18 x 11 (F) 19 x 13 (R)"

2024-12-01 T1 Car Mods for T1 Corvette under line item 1150

#37173 from Thomas Napolitano · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

As printed in Fastrack

In GCR, Section 9.1.9.1.A.2,, add the following:
"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. Vents may be added to fenders."

2024-12-01 T2 BMW 320i Spec Line

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

Summary

As printed in Fastrack

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

2024-12-01 T2 Classification for a 2005 Cadillac CTS 3.6 liter 6 speed manual

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

Summary

As printed in Fastrack

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

2024-12-01 T1 Increased Bore Throttle Bodies for E46 M3 S54 Engine

#37273 from Mark Pfeffer · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Lines, E46 M3 Spec Line # 1050, add to Engine Notes the following:
"Dinan Throttle Body #D760-3400 allowed on the 3.250L."

2024-12-01 T2 Please Consider Allowing Update to the C5 Corvette

#37298 from DAVID WOODLE · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Chevrolet Corvette C-5 Incl. Fxd Cpe (98-04) Z06 (hardtop) (01-04), change Restrictor Required as follows:
"59mm FRP LS1: 59mm FPR, LS2: 63mm FPR, LS3: 56mm FPR"

Applies to Chevrolet Corvette on this page: Josh Carroll, David Holmes, Patrick Howe, Evan Gold, Greg Nester, Michael Cheney, Luis Martinez

2024-12-01 T2 Major error in lane, but nobody ran it.

#37302 from Touring Committee · Rule change · TB 24-12 (2024-12 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, delete Chevrolet Corvette Z06 (06-12) Spec Line in its entirety.

2025-01-01 T2 BoP for the Various Mustangs

#37185 from Scotty B White · Rule change · TB 25-01 (2025-01 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Ford Mustang GT 5.0L (11-14), change as follows:
Weight: "3575 3525"

Applies to Ford Mustang on this page: Scotty B White

2025-01-01 T2 Remove spec lines that have expired

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

Summary

As printed in Fastrack

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

2025-01-01 T2 Spec Corvette Line Clarification.

#37441 from Joe Aquilante · Rule change · TB 25-01 (2025-01 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Spec Corvette, change as follows:
Weight: "SC-3200, SC+-3300* See Notes Section"
Notes: "Cars must comply with all Spec Corvette rules dated 11-28-22 including fuel and tires. No tire treatment or rubber
softeners are permitted. Limited to 380 HP. Nankang NS-2R Tires conforming to Spec Corvette rules or a 295 R compound DOT
tire. Cars must conform to Spec Corvette rules dated 11/2022. Master cylinder part number GM 19418187 and Booster part
number 19418516 permitted. Limited to 380 HP. Any 200tw 315 tire permitted if used on all 4 corners or a 295 R compound DOT
tire.
Modifications to Radiator Air Shroud to increase radiator cooling efficiency is allowed. Replacement of factory air shroud with

2025-02-01 T1 T1 Parity Compared to GT4

#37170 from Tony Ave · Rule change · TB 25-02 (2025-02 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Lines, change Weight and Restrictor Required as follows:
Mustang - Spec Line 1430
Weight: "3475 3600"
Restrictor Required: "65mm 60mm - FPR"
Corvette Spec Line 1190
Weight: "3450 3500"
Restrictor Required: "70mm 67mm - Flat Plate"
In T1 Spec Lines, delete Spec Line BMW # 1190 in its entirety.

2025-02-01 T2 Mustang Update backdate

#37275 from Scotty B White · Rule change · TB 25-02 (2025-02 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, combine Ford Mustang GT 5.0L (15-17) and Ford Mustang GT 5.0L (2018-) and change as follows:
Delete in its entirety: "Ford Mustang GT 5.0L (15-17)"
"Ford Mustang GT 5.0L (2018-)(15-23)"
Required Restrictor: 58mm flat plate restrictor 2015-17 5.0 Gen 2 63mm FPR, 2018-23 5.0. Gen 3 60mm FPR"
Gear Ratios: "3.66, 2.43, 1.69, 1.32, 1.00, 0.65 or 4.69, 2.98, 2.14, 1.76, 1.52, 1.27, 1.00, 0.85, 0.68, 0.63 or 4.17, 2.34, 1.52, 1.14,
0.87, 0.69"
Notes: "Ford Performance Handling Kit part #M-FR3A-M8, Sway Bars in M-FR3A-M8 kit part #M5490-E or M5490-G, Rear Toe
Bearing part #M-5A460-M, Ford Performance Radiator part #M-8005-M8,Strut Tower Brace part# M-20201-M, Camber Bolts M-

Applies to Ford Mustang on this page: Scotty B White

2025-02-01 T1 Clarification of Request Approval #37273

#37399 from Mark Pfeffer · Rule change · TB 25-02 (2025-02 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Lines, E46 M3 Spec Line # 1050, change Engine Notes as follows:
"Dinan Throttle Body #D760-3400 VAC Motorsports #VAC-TB-S54 allowed on the 3.250L."

2025-02-01 T1 C8 Corvette Facts

#37400 from Garry Crook · Rule change · TB 25-02 (2025-02 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Lines, Chevrolet Corvette C8 (20- 23) - Includes Z51, Spec Line # 1210, change Min. Weight as follows:
"3600 3500"

2025-02-01 T2 BOP Adjustment for 2016 - Camaro SS/1LE

#37434 from Kurt Rezzetano · Rule change · TB 25-02 (2025-02 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Chevrolet Camaro, 1LE (2016-), change as follows:
"Chevrolet Camaro, 1LE (20 16-25)"
Required Restrictor: "58mm 62mm FPR"
Min Weight: "3500 3600"

2025-02-01 T1 Camaro Gen 5 Competitive Disadvantage

#37440 from Clark Nunes · Rule change · TB 25-02 (2025-02 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Lines, Chevrolet Camaro Gen 5 (10-15) Including SS, Z28 Spec Line 1135, change Required Restrictor as follows:
"75mm 80mm - Flat Plate"

2025-02-01 T2 BMW M235iR TCS CHANGE REQUEST

#37470 from Werner Kordas · Rule change · TB 25-02 (2025-02 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, BMW M235iR (-2016), add to Notes the following:
"Oil cooler and radiator permitted according to touring rules. Silicone charge pipe permitted."

2025-02-01 T1 Tire Changes in the Rules for GT4

#37497 from Joe Rainey · Rule change · TB 25-02 (2025-02 Fastrack)

Summary

As printed in Fastrack

In T1-GT4 Spec Lines, Audi R8 GT4 Spec Line #4020, change Max Tire Size as follows:
"315 DOT, 305/645, or 30/65-18 (f), 33/68-18 (r) Non-DOT"

2025-02-01 T2 Request to Classify Club Spec in Appropriate Touring Classes

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

Summary

As printed in Fastrack

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

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

2025-03-01 T2 T2 BOP

#37312 from Touring Committee · Rule change · TB 25-01 (2025-01 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, BMW M2 CS Cup 2020-, change Notes as follows:
"Effective 3/1/2025 It is mandatory to run the “Purple” power stick part #8324089"Red" power stick part #8324085."
In T2 Spec Lines, Chevrolet Corvette C-5 Incl. Fxd Cpe (98-04) Z06 (hardtop) (01-04), change Required Restrictor as follows:
"Effective 3/1/2025 59mm 58mm"

Applies to Chevrolet Corvette on this page: Josh Carroll, David Holmes, Patrick Howe, Evan Gold, Greg Nester, Michael Cheney, Luis Martinez

2025-03-01 T1 Correct and make new T1 BOP adjustments.

#37737 from Touring Committee · Rule change · TB 25-03 (2025-03 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Lines, change Weight, Restrictor Required and/or Notes as follows:
Mustang - Spec Line 1430:
Restrictor Required: "60mm 65mm - FPR"
Mustang - Spec Line 1460:
Weight: "3425 3500"
Restrictor Required: "70mm - FPR"
Corvette Spec Line 1190:
Restrictor Required: "67mm 70mm - Flat Plate"

2025-04-01 T2 Please class the Darkhorse R in T2

#37295 from Touring Committee · Rule change · TB 25-04 (2025-04 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, classify the Ford Mustang Challenge Darkehorse R.

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

2025-04-01 T2 T2 350Z Spec Line Cleanup

#37603 from Ben Slechta · Rule change · TB 25-04 (2025-04 Fastrack)

Summary

As printed in Fastrack

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/N
54010-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 Control
Arms 72125 and 72123 are allowed. Aftermarket flywheel permitted at minimum 14lbs. Aftermarket headers permitted, cold air
intake permitted. Aftermarket big brake kit 4 piston front permitted up to 355x32 SPL pro V3 front upper camber caster control
arms 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

2025-04-01 T1 Cadillac CT4-V Blackwing

#38003 from Touring Committee · Rule change · TB 25-04 (2025-04 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Lines, classify Cadillac CT4-V Blackwing as follows:

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

2025-05-01 T1 Acceptance of Porsche 981 GT4 Clubsport into T1

#36664 from John Brown · Rule change · TB 25-05 (2025-05 Fastrack)

Summary

As printed in Fastrack

In T1-GT4 Spec Lines, classify Porsche 981 GT4 Clubsport as follows:

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

2025-05-01 T2 C6 T-2 Corvette 6 Liter Engine Restrictor

#37490 from Joe Aquilante · Rule change · TB 25-05 (2025-05 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Chevrolet Corvette C6 Coupe / Grand Sport (05-13), Required Restrictor, change as follows:
LS2: "63mm 67mm FPR"

2025-05-01 T1 Request to Restore T1 Honda S2000 to Proper Weights

#37644 from David Mead · Rule change · TB 25-05 (2025-05 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Lines, Honda S2000, Spec Line 1530, change as follows:
Minimum Weight: "2950 2900"
Chassis Notes: "This spec line is set to expire as of 12/31/2025 if not represented in Majors competition in 2025."

2025-05-01 T1 DCT Transmission in E46

#37964 from Matt Spicuzzi · Rule change · TB 25-05 (2025-05 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Lines, BMW E46 M3, add to Chassis Notes the following:
SL# 1060: "BMW #GS7D36SG transmission permitted as an aftermarket sequential option."
SL# 1070: "BMW #GS7D36SG transmission permitted as an aftermarket sequential option."

Applies to BMW M3 on this page: Ian Barberi

2025-05-01 T2 370Z Mid link Replacement for True Coil Overs and OEM Wheel Size

#38014 from Zachary Hayward · Rule change · TB 25-05 (2025-05 Fastrack)

Summary

As printed in Fastrack

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

2025-05-01 T1 Reduce E92 M3 Minimum Weight to 3050

#38092 from Shane Brown · Rule change · TB 25-05 (2025-05 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Lines, BMW M3 E92 (08-13), Spec Line 1100, change Min. Weight as follows:
"3350 3300"

2025-05-01 T1 Finalize Spec Line for T1 Darkhorse

#38106 from Touring Committee · Rule change · TB 25-05 (2025-05 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Lines, Mustang Darkhorse R (Mustang Challenge) Spec Line- 4119, change as follows:
Tire size: "305 315 (f) 315(r)"
Performance Control: "TBD"
Min. Weight with driver (LBS): "10.5 (f) 11 (r) 3600"
Chassis Notes: "Must conform to Mustang Challenge Rules. Tires conforming to Mustang Challenge rules are permitted. **This
car is not eligible for the Runoffs until it has competed in 3 Super Tour events.**"

2025-05-01 T2 T2 Cadillac tire

#38210 from Touring Committee · Rule change · TB 25-05 (2025-05 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, CT4-V Blackwing (2022-), change Tire Size Max as follows:
“295 315”

2025-08-01 T2 Incorrect Touring Heading

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

Summary

As printed in Fastrack

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

2025-08-01 T2 Clarifications needed to BMW M2 CS cup line

#38536 from Joe Aquilante · Rule change · TB 25-08 (2025-08 Fastrack)

Summary

As printed in Fastrack

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

2025-08-01 T2 Fix brake allowance supersessions.

#38554 from Touring Committee · Rule change · TB 25-08 (2025-08 Fastrack)

Summary

As printed in Fastrack

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 piece
steel rotors with aluminum hats up to 5% larger than 340/330; Any four piston calipers and brackets are permitted. Any brake
caliper 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 Vented
Disc (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 Grand
Sport brake package. Any brake caliper pistons allowed. May use any four piston brake caliper and brackets. Z06 brake calipers
allowed."

2025-08-01 T2 C5 Corvette correction

#38782 from Touring Committee · Rule change · TB 25-08 (2025-08 Fastrack)

Summary

As printed in Fastrack

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: Josh Carroll, David Holmes, Patrick Howe, Evan Gold, Greg Nester, Michael Cheney, Luis Martinez

2025-11-01 T2 ND Gearset Request for T4

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

Summary

As printed in Fastrack

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

2025-11-01 T2 ND Spec Lines Wrong PT#'s

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

Summary

As printed in Fastrack

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

2025-11-01 T2 Touring 2 Post-Runoffs BOP Adjustments and Changes

#39274 from Touring Committee · Rule change · TB 25-11 (2025-11 Fastrack)

Summary

As printed in Fastrack

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:

Applies to Ford Mustang on this page: Scotty B White

2025-11-01 T2 Adjust rev limit on Spec Corvette in T2

#39282 from Touring Committee · Rule change · TB 25-11 (2025-11 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Spec Corvette, add to Notes the following:
"7) up to 7100 rpm Rev limit."

2025-12-01 T2 Help the 2011-2014 s197Mustang GT and Boss302 Less Restriction

#38523 from Joe Aquilante · Rule change · TB 25-12 (2025-12 Fastrack)

Summary

As printed in Fastrack

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"

Applies to Ford Mustang on this page: Scotty B White

2025-12-01 T2 Improving Competitiveness of Gen 5 Camaro SS

#39021 from Van Hunter · Rule change · TB 25-12 (2025-12 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Chevrolet Camaro SS/1LE (10-15), change Weight as follows:
"3625 3575"

2025-12-01 T1 Keep S2000 Classification

#39344 from David Mead · Rule change · TB 25-12 (2025-12 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Lines, Honda S2000, change as follows:

2025-12-01 T2 Adjust T2 Darkhorse R

#39346 from Andrew Aquilante · Rule change · TB 25-12 (2025-12 Fastrack)

Summary

As printed in Fastrack

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.**

Applies to Ford Mustang on this page: Scotty B White

2025-12-01 T1 Correcting and updating T1 GT4 spec lines

#39394 from Touring Committee · Rule change · TB 25-12 (2025-12 Fastrack)

In T1-GT4 Spec Lines, change as follows:

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

2025-12-01 T1 BOP adjustments to non GT4 T1 cars

#39406 from Touring Committee · Rule change · TB 25-12 (2025-12 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Lines, change as follows:
Spec Line # 1134
Required Restrictor: "61mm 70mm - Flat Plate"
Spec Line # 1140
Required Restrictor: "72mm - Flat Plate"
Spec Line # "1175"
Maximum Displ.: "L76 5967cc OEM"
Minimum Weight: "3250"

2025-12-01 T1 Remove T1 Spec Line

#39407 from Touring Committee · Rule change · TB 25-12 (2025-12 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Lines, BMW M3 E92 (08-13) Spec Line number 1090, delete Spec Line in its entirety.

2026-01-01 T2 Alternate Placement of Fuse Panel and Electronics Request

#39370 from Aaron Stehly · Rule change · TB 26-01 (2026-01 Fastrack)

Summary

As printed in Fastrack

In GCR, Section 9.1.9.2.D.9.d, add the following:
"8. Under-dash electronics including computers, modules and fuse boxes may be relocated so they can be easily accessed after
roll cage installation."

2026-01-01 T2 Rebalance Blackwing Cadillac T2 for 2026

#39426 from John Heinricy · Rule change · TB 26-01 (2026-01 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Cadillac CT4-V Blackwing (2022-), change Weight as follows:
"3800 3750"

2026-01-01 T2 C6 LS2 Corvette Parity Request

#39472 from Brian LaCroix · Rule change · TB 26-01 (2026-01 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Chevrolet Corvette C6 Coupe / Grand Sport (05-13), change Restrictor as follows:
"LS2: 67mm 80mm FPR LS3: 56mm FPR"

2026-01-01 T2 T2 Tire Sizing

#39490 from Scotty B White · Rule change · TB 26-01 (2026-01 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, Dodge Viper SRT10 incl. coupe (03-06), change Weight as follows:
"3675 3650"

2026-01-01 T2 Rear Spoiler for Mustang GT S550 (15-23)

#39499 from Andrew Aquilante · Rule change · TB 26-01 (2026-01 Fastrack)

Summary

As printed in Fastrack

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."

Applies to Ford Mustang on this page: Scotty B White

2026-01-01 T2 Clarify T4 Brake Rotor Allowance

#39503 from David Mead · Rule change · TB 26-01 (2026-01 Fastrack)

Summary

As printed in Fastrack

In GCR, Section 9.1.9.2.D.6.a.6., change as follows:
"In T2-Performance alternative rotors, including 2 piece rotors are permitted. Rotors must be within 5% of OE diameter or a
maximum diameter of 360mm.
In T3- Performance alternative rotors, including 2 piece rotors are permitted with a maximum diameter of 360mm.
T4- Performance alternative 1-piece rotors are permitted but rotors must meet the sizes listed in the spec line. Spec lines
showing alternate brake kits are also permitted to use 1-piece performance alternative rotors of the same size."

2026-01-01 T1 additional T1 adjustment

#39520 from Touring Committee · Rule change · TB 26-01 (2026-01 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Line, Spec line # 1132, change Restrictor as follows:
"70mm - Flat Plate"

2026-02-01 T2 Request to Add 2014-2017 435i to T2

#38991 from Jimmy Cabrera · Rule change · TB 26-02 (2026-02 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, classify as follows BMW 435I (2014-2017):

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

2026-02-01 T2 Consideration for Nissan Z & NISMO Z to Touring 2 Class

#39296 from Greg Nelson · Rule change · TB 26-02 (2026-02 Fastrack)

Summary

As printed in Fastrack

In T2 Spec Lines, classify Nissan Z incl. Nismo as follows:

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

2026-02-01 T2 Allow Alt Bushing Material in Toe Links

#39607 from David Mead · Rule change · TB 26-02 (2026-02 Fastrack)

Summary

As printed in Fastrack

In GCR, Section 9.1.9.D.5.a.1., change as follows:
"T2-T4: A maximum of 3.5 degrees of negative camber is allowed on front and rear suspensions. Spec line part(s) may not be
modified to increase caster and camber. Strut suspensions may adjust camber and caster by the use of eccentric bushings,
eccentric bolts (crash bolts) at the strut-to-spindle, and/or by use of slotted adjustment plates at the top of the strut mounting
plate. If upper strut slotted adjustment plates are used, they shall be located on existing chassis structure, utilizing the
unmodified manufacturer’s original bolt holes and may not serve as reinforcement for that structure. Slotted adjustment plates
(strut camber plates) may incorporate a single spherical bearing (spherical bushing) and a ball thrust bearing per strut tower. On
other forms of suspension, camber and caster adjustment may be achieved by the use of shims and/or eccentric

2026-02-01 T2 Request for Classification of MG6 TCR in T2-TCR Class

#39702 from Vito Jin · Rule change · TB 26-02 (2026-02 Fastrack)

Summary

As printed in Fastrack

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

2026-02-01 T1 LS1 into Corvette C6 Spec Line Request

#39716 from Danny Kellermeyerhttps://crbscca.com/secu · Rule change · TB 26-02 (2026-02 Fastrack)

Summary

As printed in Fastrack

In T1 Spec Lines, reinstate Spec Line # 1139, Chevrolet Corvette C6 (05-13) Includes Z51, GrandSport, Z06, Z06 Carbon, as
follows:
Max Displ: "LS1, LS6 OEM"
Min Weight: "3200"
Required Restrictor: "70mm"