T1 at Indianapolis Motor Speedway

2019-01-01 T1 Class 2015+ Mustang GT350(R)

#21466 from Scotty B White · Rule change · TB 19-01 (2019-01 Fastrack)

In T1-LP, Mustang GT350 (2015-), replace spec line as follows:

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

2019-01-01 T1 Request to Classify Ford FP350S in T1-LP

#25341 from Touring Committee · Rule change · TB 19-01 (2019-01 Fastrack)

In T1, Classify the Ford Mustang FP350S (2018), as follows:

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

2019-01-01 T1 Amendment to Request #25555

#25556 from Sean Reilly · Rule change · TB 19-01 (2019-01 Fastrack)

In 9.1.9.1.N.5, make changes as follows:
“Suspension components shall be the stock OEM parts, but they may be reinforced. Spherical
bearings are permitted on suspension components. Standard suspension bushings may be
replaced with solid or spherical bushings. Alternate control arms permitted.”
“17. Alternate control arms permitted.”

2019-01-01 T1 Request to balance 996 v 997 T1 weight

#25658 from Jake Namer · Rule change · TB 19-01 (2019-01 Fastrack)

In T1, Porsche 996, make changes to weight and engine notes as follows:
3200 3000
“GT3 Cup, GT3 RSR, GT3 RS, GT America not allowed.”
In T1, Porsche 996 GT3 Cup (02-05), change the weight as follows:
3150 3000
In T1, Porsche 997, change the weight as follows:
3150 3100

2019-01-01 T1 Request to Add PDK Transmission to 997 Porsche Spec Line

#25668 from Craig Anderson · Rule change · TB 19-01 (2019-01 Fastrack)

Please classify the Porsche 997 as follows:

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

2019-01-01 T1 T1 World Challenge/Grand AM Spec Cars

#25687 from DAVID MEAD · Rule change · TB 19-01 (2019-01 Fastrack)

In T1, Acura NSX Turbo World Challenge, make changes to weight, restrictor and notes as
follows:
3000 3100
45mm 44mm
“Must conform to World-Challenge VTS Dated 8.19.2009 Version Number: 3 Version Date:
6.15.2000 and World-Challenge Appendix A 2010 that limits tire and wheel size: Max Tire
Size: 245/40 F, 295/30 R. Wheels Max Size: 17x9 Front, 18x11 Rear. No other touring
modifications or allowances permitted beyond the VTS and Appendix A allowances and notes

2019-01-01 T1 Add Clarification to Spec Car Classifications Vehicle Spec

#25774 from Touring Committee · Rule change · TB 19-01 (2019-01 Fastrack)

Lines
In T1, Porsche Cayman GTS (2011), add to notes as follows:
“Must conform to 7/15/2015 version 15 VTS. TC aftermarket ABS controller allowed. PDK
Permitted +100lbs. No other touring modifications or allowances permitted beyond the noted
VTS and these spec line allowances.”
In T1, Audi TTRS (GTS 2011 Spec), add to notes as follows:
“Must conform to December 14th, 2011 revision 3 GTS rules. No other touring modifications
or allowances permitted beyond the noted GTS rules allowances.”

2019-03-01 T1 Request Mustang GT Limited Prep 2018 Classification

#24431 from Joe Aquilante · Rule change · TB 19-03 (2019-03 Fastrack)

In T1-LP, Ford Mustang GT (2015-), add to the year as follows:
“(2015-2017)”
In T2, Ford mustang GT 5.0L (2015-), add to the year as follows:
“(2015-2017)”
In T3, Ford Mustang V6 (2015-), add the year as follows
“(2015-2017)”
In T1-LP, classify the Ford Mustang GT 5.0L (2018-) as follows:

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

2019-04-01 T1 Request to classify the Porsche 928GTS/S4 in Touring 1

#26315 from Mark Kibort · Rule change · TB 19-04 (2019-04 Fastrack)

In T1, classify the Porsche 928 S4/ Porsche 928 GTS-R, as follows:

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

2019-05-01 T1 Request to Classify EcoBoost Mustang

#25841 from Scotty B White · Rule change · TB 19-05 (2019-05 Fastrack)

In T1, classify the Ford Ecoboost engine as follows:

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

2019-05-01 T1 Request Corvette aerodynamic aids

#26265 from James Candelaria · Rule change · TB 19-05 (2019-05 Fastrack)

In T1, Chevrolet Corvette Cadillac XLR (04-09), add to notes as follows:
“C5 body only: Corvette OE equivalent aero parts allowed: C7 Carbon C7-CCC5EX-
RSP-GB, C7-CCC5-SS-GB, C7-CCC5-FS-GB, +50lbs.”

2019-05-01 T1 Audi TTRS VTS Documentation Revision

#26578 from Colin Cohen · Rule change · TB 19-05 (2019-05 Fastrack)

In T1, Audi TTRS (GTS 2011 Spec), make changes to chassis notes as follows:
“Must conform to December 14th, 2011 July 24th, 2015 revision 3 7 GTS rules.”

2019-05-01 T1 Request Ride Height Clarification

#26599 from SCCA Staff · Rule change · TB 19-05 (2019-05 Fastrack)

In GCR section 9.1.9.1.D.5, add as follows:
“Ride height will be measured without driver at the lowest point of the rocker panel, not
including the pinch weld. Minimum ride height is 3.5 inches.”

2019-05-01 T1 Opposes Unfair weight and throttle restrictor

#26719 from Mark Kibort · Rule change · TB 19-05 (2019-05 Fastrack)

In T1, Porsche 928 S4/ Porsche 928 GTS-R, make changes to weight and restrictor as follows:
“3500 3200”
“60mm flat plate restrictor”

2019-05-31 T1 Clarify DOT tires touring

#26556 from Touring Committee · Rule change · TB 19-06 (2019-06 Fastrack)

In GCR section 9.1.9.2.7.b, T2-T4, make changes to Tires as Follows:
"Unless otherwise so noted on a vehicle’s TCS line, all cars shall run the tire size as listed for the vehicle in the TCS
or an authorized replacement size. When authorized replacement tires are used, the same size tire shall be used on
each axle (front tires need not be the same size as rear tires). Tires must conform to GCR section 9.3. Tires. All
tires shall be offered for sale over the counter through the manufacturer’s tire dealer network. The brand of tire
and tire pressures are unrestricted. All cars shall run tires with a minimum of a “U” speed rating. Tires must be
DOT certified. The tire size on a vehicle spec line is a maximum unless otherwise noted. Touring spec line tire
classification supersedes all other rules. For size determination, the molded section shall be used."

2019-07-01 T1 Request BoP Baten - T1 Camaro - Follow up to Letter # 26145

#26900 from Bill Baten · Rule change · TB 19-07 (2019-07 Fastrack)

In T1, Cadillac CTS/CTS-V Chevrolet Camaro Pontiac Firebird Pontiac GTO, make changes
to the restrictor as follows:
"6162 67 70mm Flat Plate"

2019-08-01 T1 Request to return Ford Mustang Challenge Car to T1

#26751 from Bruno Stockinger · Rule change · TB 19-08 (2019-08 Fastrack)

In T1, GCR section 9.1.9.1 T1, classify the Ford Mustang Challenge as an E&O as follows:
T1 Maximum
Displ.
Min.
Weight
Required
Restrictor Engine Notes Chassis Notes
Ford Mustang Challenge 4600 cc 3300lbs none none Must be prepared to

2019-08-01 T1 Correct years in T1 FP Corvette spec

#27023 from Touring Committee · Rule change · TB 19-08 (2019-08 Fastrack)

In T1, GCR section 9.1.9.1, make changes to the spec line as follows:
"Chevrolet Corvette Cadillac XLR (04-09)"

2019-08-31 T1 T1 LP 2016 Camaro and Later

#27198 from Joe Aquilante · Rule change · TB 19-09 (2019-09 Fastrack)

In T1-LP, Chevrolet Camaro 1LE (2016-), change the weight as follows:
"3600 3500"
In T1-LP, Chevrolet Camaro 1LE (2016-), change the notes as follows:
"53 70mm flat plate restrictor required."

2020-02-01 T1 Request to include Subaru WRX/STI 02-18 in T1

#24916 from Joel Baez · Rule change · TB 20-02 (2020-02 Fastrack)

In T1 Spec Lines, add Subaru WRX, WRX STI 2005-2020

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

2020-02-01 T1 Request Ford Mustang FP350S T1-LP weight and restrictor change

#26662 from Thomas Dewitt · Rule change · TB 20-02 (2020-02 Fastrack)

In GCR, T1-LP Spec Lines, Ford Mustang FP350S (2017), change notes as follows:
"Serial number 1-50 51 cars as delivered. Additional permitted allowances: DOT tires required. Other
consumables are open, alternate driveshaft permitted, aftermarket wheels and fuel cell per Touring
category rules permitted. 60mm 70mm flat plate restrictor. No other modifications permitted."
In GCR, T1-LP Spec Lines, Ford Mustang GT (15-17), change Weight as follows:
"3400 3500"
In GCR, T1-LP Spec Lines, Ford Mustang GT (15-17), change notes as follows:
"Ford Performance Handling Kit part #M-FR3A-M8, Sway Bars in M-FR3A-M8 kit part#M-5490-E, Rear

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

2020-02-01 T1 Request to classify Ford Coyote 3rd Gen OEM

#27145 from Cheyne Daggett · Rule change · TB 20-02 (2020-02 Fastrack)

In GCR 9.1.9.1, Ford Mustang/ Thunderbird, make change as follows:
"5000 Coyote OEM (15-16 17)"
In T1 full prep Spec Lines, add Ford Mustang/Thunderbird:

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

2020-02-01 T1 Request alternate dashboard

#27276 from Miguelangel Aponte Rios · Rule change · TB 20-02 (2020-02 Fastrack)

In T1 Spec Lines, BMW M3 E92 (08-13), add the following to notes:
"Carbon Dash allowed with 25 lb penalty."
In T1 Spec Lines, BMW M3 E92 (08-13), add the following to notes:
"Carbon Dash allowed with 25 lb penalty."

Applies to BMW E92 M3 on this page: Mark Boden, Tim Kezman

Applies to BMW M3 on this page: Mark Boden

2020-02-01 T1 Request for Allowance of Coil Springs on Limited Prep C6 Corvette

#27713 from Adrian Wlostowski · Rule change · TB 20-02 (2020-02 Fastrack)

In T1-LP Spec Lines, Chevrolet Corvette C-5 Incl. Fxd. Cpe (98-04) Z06 (hardtop) (01-04), add to Chassis
Notes the following:
"Leaf spring suspension may be converted to conventional coilover suspension in T1 only."
In T1-LP Spec Lines, Chevrolet Corvette C6 Coupe (05-10) Grand Sport (10-13), add to Chassis Notes the
following:
"Leaf spring suspension may be converted to conventional coilover suspension in T1 only."
In T1-LP Spec Lines, Chevrolet Corvette Z06 (06-12), add to Chassis Notes the following:
"Leaf spring suspension may be converted to conventional coilover suspension in T1 only."

2020-03-01 T1 Request for E46 wagon with S54 engine in T1

#27427 from James Gallagher · Rule change · TB 20-03 (2020-03 Fastrack)

In T1, BMW E46 M3 & E36 / BMW Z3, add models and change displacement as follows:
"BMW E46, E46-M3, E36, E36-M3, Z3"
"3200 3250"
Note: The wagon body is allowed. The BMW S54 engine is commonly thought of as a 3.2 liter engine,
while its actual displacement is 3250cc.

2020-04-01 T1 Request 996 GT3 Trunk for Wing Allowance.

#28153 from JAKE NAMER · Rule change · TB 20-04 (2020-04 Fastrack)

In T1, Porsche 996 Spec Lines, add to Chassis Notes as follows:
"996 Cup Replica Rear deck lid allowed."

2020-04-01 T1 All Touring, Change DOT Tire Language 9.1.9.1, 9.3.45

#28452 from Tim Myers · Rule change · TB 20-04 (2020-04 Fastrack)

In T1, Acura NSX Turbo World Challenge Spec Lines, add to Chassis Notes as follows:
"DOT tires required as per GCR section 9.3."
In T1, Audi TTRS (GTS 2011 Spec) Spec Lines, add to Chassis Notes as follows:
"DOT tires required as per GCR section 9.3."

2020-05-01 T1 Additional Clarification on 996 Cup in T1 From Letter #28040

#28060 from Chris Arbuckle · Rule change · TB 20-05 (2019-05 Fastrack)

In T1, Porsche 996 GT3 Cup, change years as follows:
"(02-05) (98-04)"

2020-05-01 T1 Request SPEC Corvette Rear Spolier

#28182 from John Nguyen · Rule change · TB 20-05 (2019-05 Fastrack)

In T1, Chevrolet Corvette Cadillac XLR, add to notes as follows:
"Cars using OE bodywork may install SCRSPLR-001 Rear spoiler."

2020-05-01 T1 T1 Rear Brake Rotor Size Exemption for Gen 5 Camaro

#28402 from Clark Nunes · Rule change · TB 20-05 (2019-05 Fastrack)

In T1, Cadillac CTS/CTS-V Chevrolet Camaro Pontiac Firebird Pontiac GTO, add to the 6162 OEM chassis
notes as follows:
"Camaro OEM 366mm rear rotor and caliper allowed without weight penalty."

2020-06-01 T1 Consider coil spring conversion Corvette in T2

#28824 from Touring Committee · Rule change · TB 20-06 (2020-06 Fastrack)

In T2 Spec Lines, Chevrolet Corvette C-5 Incl. Fxd Cpe (98-04) Z06 (hardtop) (01-04), add to Notes as
follows:
"Aftermarket leaf spring suspension allowed 800 lb max. Coilover suspension allowed coil springs
allowed 800 lb max."
In T2 Spec Lines, Chevrolet Corvette C6 Coupe / Grand Sport (05-13), add to Notes as follows:
"Aftermarket leaf spring suspension allowed 800 lb max. Coilover suspension allowed coil springs
allowed 800 lb max."
In T2 Spec Lines, Chevrolet Corvette Z06 (06-12), add to Notes as follows:

Applies to Chevrolet Corvette on this page: Michael Pettiford, Joseph Gaudette, Joe Aquilante, Adrian Wlostowski

2020-08-01 T1 Touring Gurney flap wicker clarification

#29013 from SCCA Staff · Rule change · TB 20-08 (2020-08 Fastrack)

In T1, GCR section 9.1.9.1.B.2, clarify wording as follows:
"c. Wings shall be a single element and single plane with a maximum chord length of 12.00
inches, including any wicker Gurney flap. (except as allowed in 9.1.9.1.B.2.h)."
"e. The entire rear wing assembly, including the end plates and any wicker Gurney flap, shall be
mounted level with, or below, the peak of the roof."

2020-12-01 T1 Changes to Corvette C8

#29898 from Club Racing Board · Rule change · TB 20-12 (2020-12 Fastrack)

In T1, Chevrolet Corvette C8, Z51 2020-, change as follows:
Max Wheel Size: "19 x 10 11(f) 20 x 11 13(r)"
Tire Size: "275 315 (f) 315 335 (r)"
Weight: "3650 3550"

2021-01-01 T1 Correct T1 Limited Prep Years

#29708 from Joe Aquilante · Rule change · TB 21-01 (2021-01 Fastrack)

In T1-LP Spec Lines, Chevrolet Corvette Z06 (06-12), change years as follows:
"(06-12 13)"

2021-02-01 T1 Request to Clarify Miller Mustang Classification

#28728 from David Mead · Rule change · TB 21-02 (2021-02 Fastrack)

In T1 Spec Lines, Ford Mustang Challenge, change Maximum Displ. as follows:
"4600/5000 3-valve"

Applies to Ford Mustang on this page: Andrew Aquilante, Pratt Cole, Chris Outzen, Ronald Hugate, Craig Capaldi, Chris Durbin, Andrew Entwistle, Cheyne Daggett, Walter Bobko, Morey C. Doyle

Applies to Ford Mustang FP350S on this page: Brian Kleeman, Paolo Salvatore, Don Van Nortwick, Edgar Lau

Applies to Ford Mustang GT on this page: Ross Murray

Applies to Ford Mustang GT-350 on this page: Chris Alliegro

2021-02-01 T1 BMW E46 Carbon Dash

#29806 from Murat Ketenci · Rule change · TB 21-02 (2021-02 Fastrack)

In T1, GCR Section 9.1.9.1.C.5., change as follows:
"Stock dash/instrument panel cover (dash pad) must be used. Original instruments/gauges may be replaced, or supplemented,
with additional engine monitoring gauges. Accessories, lights and switches may be added or removed. Box-type extensions from
the dash pad may be used to mount switches and controls, in the areas where the OEM insert panels were mounted, so that
they more easily accessible to the driver. Audio and video systems may be removed. Alternative (i.e. carbon or fiberglass) OEM
style and Configuration dashboards may be used with a 25 pound penalty."

2021-02-01 T1 Request to Update T1 Mustang Spec Line

#30001 from DAVID WOODLE · Rule change · TB 21-02 (2021-02 Fastrack)

In T1 Spec Lines, Ford Mustang/ Thunderbird, change as follows:
"Ford Mustang/ Thunderbird
Shelby/Shelby GT350/GT500 (-2018)"

Applies to Ford Mustang on this page: Andrew Aquilante, Pratt Cole, Chris Outzen, Ronald Hugate, Craig Capaldi, Chris Durbin, Andrew Entwistle, Cheyne Daggett, Walter Bobko, Morey C. Doyle

Applies to Ford Mustang FP350S on this page: Brian Kleeman, Paolo Salvatore, Don Van Nortwick, Edgar Lau

Applies to Ford Mustang GT on this page: Ross Murray

Applies to Ford Mustang GT-350 on this page: Chris Alliegro

2021-02-01 T1 Dodge Viper 8400 OEM???

#30174 from Scotty White · Rule change · TB 21-02 (2021-02 Fastrack)

In T1, classify Dodge Viper ACR, as follows:
T1 Maximum
Displ.
Min.
Weight
Required
Restrictor Engine Notes Chassis Notes
Dodge Viper ACR 8400 OEM 3600 (2) 55mm flat

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

2021-02-01 T1 Class BMW M2CS Club Sport

#30195 from Touring Committee · Rule change · TB 21-02 (2021-02 Fastrack)

In T1-LP Spec Lines, classify BMW M2CS Club Sport Racing, as follows:

2021-02-01 T1 997.1 GT3 Cup

#30229 from Touring Committee · Rule change · TB 21-02 (2021-02 Fastrack)

In T1, classify the Porsche 997.1 GT3 Cup (2006-2011) as follows:
T1 Maximum
Displ.
Min.
Weight
Required
Restrictor Engine Notes Chassis Notes
Porsche 997.1 GT3 Cup (2006-

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

2021-03-01 T1 T1 LP Aero adjustments

#30196 from Touring Committee · Rule change · TB 21-03 (2021-03 Fastrack)

In GCR Section 9.1.9.1., Limited T1, change as follows:
"See Limited Preparation (LP) T1 specification lines for the list of cars permitted to run in T1 in a limited preparation level
configuration. These cars shall be prepared to the T2 level of preparation found in 9.1.9.2. with the following additional
allowances:Aftermarket headers allowed. Limited prep cars running stock OEM manifold/headers as delivered may subtract
50lbs. from the specified weight.
In addition to T2 specifications all T1-LP cars are permitted to:
1. Relocate the battery
2. Use any commercially available battery.

2021-05-01 T1 Request For Reduction in Weight/Penalties for Camaro

#30443 from Bill Baten · Rule change · TB 21-05 (2021-05 Fastrack)

In T1 Spec Lines, Cadillac CTS/CTS-V Chevrolet Camaro w/6162 Displacement, change Min. Weight as follows
"3550 00"

2021-05-01 T1 Fix dry sump Contradictions in T1-LP vs T2

#30596 from Touring Committee · Rule change · TB 21-05 (2021-05 Fastrack)

In T1-LP Spec Lines, Chevrolet Corvette C-5 Incl. Fxd. Cpe (98-04) Z06 (hardtop) (01-04), change Notes as follows:
"ARE dry sump kit #3021S, Aviad dry sump kit #008-10001 or Dailey dry sump kit permitted: #20-02-0666-assy permitted. 04 90
2371. Leaf spring suspension may be converted to conventional coil over suspension in T1 only."
In T1-LP Spec Lines, Chevrolet Corvette C6 Coupe (05-10) Grand Sport (10-13), change Notes as follows:
"ARE dry sump kit #3021S, Aviad dry sump kit #008-10001 or Dailey dry sump kit permitted: #20-02-0666-assy permitted, Dailey
dry sump kit permitted: 20-02-0666-assy,04 90 2371. Leaf spring suspension may be converted to conventional coilover
suspension in T1 only."
In T1-LP Spec Lines, Chevrolet Corvette Z06 (06-13), change Notes as follows:

2021-06-01 T1 T1-LP - Add Performance Pack, Bullet, Mach 1 to 18+ Mustang

#29849 from Andrew Aquilante · Rule change · TB 21-06 (2021-06 Fastrack)

In T1-LP Spec Lines, Ford Mustang GT5.0L (2018-), add to Notes as follows:
"Performance Pack, Bullet or Mach-1 options allowed with 100lb penalty."
In T1 Spec Lines, Ford Mustang Shelby/Shelby GT350/GT500 (-2018) 5000 Coyote OEM (18-), change Restrictor Required as
follows:
"65mm 70mm Flat Plate"
In T1 Spec Lines, Ford Mustang Shelby/Shelby GT350/GT500 (-2018) 5000 Coyote OEM (18-), add to Notes as follows:
"Performance Pack, Bullet or Mach-1 options allowed with 100lb penalty."

2021-06-01 T1 Request BoP for the Viper in 1 LP

#29968 from Scotty White · Rule change · TB 21-06 (2021-06 Fastrack)

In T1-LP Spec Lines, Dodge Viper SRT-10 Incl. Coupe (08-10), change Notes as follows:
"45mm 57mm"

2021-06-01 T1 Request to classify C7 and 13Viper in T1 LP

#29969 from Scotty White · Rule change · TB 21-06 (2021-06 Fastrack)

In T1-LP Spec Lines, Chevrolet Corvette C7, change as follows:
"Chevrolet Corvette C7 incl. Grand Sport"
In T1-LP Spec Lines, Chevrolet Corvette C7, change Notes as follows:
"70 73 mm"

2021-06-01 T1 Request LP Z06 steel chassis

#30589 from DAVID WOODLE · Rule change · TB 21-06 (2021-06 Fastrack)

In T1-LP Spec Line, Chevrolet Corvette Z06 (06-13), add to Notes as follows:
"Aluminum chassis may be replaced with an equivalent OE steel chassis."

2021-07-01 T1 Request BoP for the Viper in 1 LP

#29968 from Scotty White · Rule change · TB 21-07 (2021-07 Fastrack)

In T1-LP Spec Lines, Dodge Viper SRT-10 Incl. Coupe (08-10), change Notes as follows:
"45mm 57mm"

2021-07-01 T1 LS6 Alternative Head Question

#30074 from Matthew Henschen · Rule change · TB 21-07 (2021-07 Fastrack)

In T1 Spec Lines, Chevrolet Corvette Cadillac XLR, add to Chassis Notes the following:
"Casting #799 heads are permitted on LS6 engines, no other modifications to the head allowed."

Applies to Chevrolet Corvette on this page: John M Buttermore, Michael Pettiford, Joseph Gaudette, Joe Aquilante, Adrian Wlostowski

2021-08-01 T1 T1 E46 BOP E&O for Letter # 29970

#30934 from Touring Committee · Rule change · TB 21-08 (2021-08 Fastrack)

In T1 Spec Lines, BMW E46, E46-M3, E36, E36-M3, Z3, change as follows:
Min Weight: "2600 2700"
Engine Notes: "The 3.4L (87.0 bore x 93.0 stroke) engine is permitted at 2650 lbs 2750 lbs."