Sectors are not comparable across all of these events. Sector times and the theoretical lap use Runoffs 2022, Runoffs 2023 only. Runoffs 2019 (sectors cut at different points) counts towards whole-lap times and trap speed only.
One run is left out as not that car's own laps (far quicker than the car managed in any other session and than anyone else in its class all week; usually a swapped transponder): Tim Kezman in Runoffs 2022 T2 Qual 3 (1:52.071; the car's best in any other session was 2:00.530 and the rest of the class's best all week 2:00.276).
One row per driver and car (a driver who changed cars has a row for each). Each cell is that driver's best in that car across the selected events, with the session it was set in. Best 5-lap stint is the mean of the driver's quickest five consecutive race laps, and consistency is how far their median race lap sat behind their best in that race (small is a driver who does it every lap); both come from the race with the best stint. The fastest in each column is purple, and a car whose best lap is more than 115% of the fastest in its class is greyed (marked ">115%" beside the driver) and left out of the colour scale. Click a column to sort, a row to highlight it.
Theoretical lap is the sum of the best sectors, whichever laps they came from, and never slower than the best lap (where a car's fastest laps were recorded without sector times, its best lap is used). The 115% mark is about the car's best lap only: a car whose best lap is within 115% of the fastest in its class is never marked. Greyed sectors with no theoretical lap mean the sector times on file do not add up to a believable lap. Letters refer to the events above; Q is qualifying, R a race.
Sectors
S1 NT SF → Bridge 1.03 mi
S2 Bridge → ST SF 0.90 mi
S3 ST SF → NT SF 1.35 mi
SPd In → Out 0.02 mi
Sectors are numbered in lap order from start/finish, whatever each event's timing called them; the loop names are SCCA timing's.
By car
Car
Class
Drivers
Lap
Qual
Race
Trap
S1
S2
S3
Porsche Carrera S 997.2
T2
4
1:57.537Cooper I MacNeil
1:57.537Cooper I MacNeil
1:58.551Cooper I MacNeil
149.1Thomas Herb
Porsche 911/ Carrera S 997.2
T2
1
1:57.537Cooper I MacNeil
1:57.537Cooper I MacNeil
1:58.551Cooper I MacNeil
146.4Cooper I MacNeil
Porsche Carrera S 997.2
T2
3
1:59.311Tim Kezman
1:59.311Tim Kezman
2:00.150Tim Kezman
149.1Thomas Herb
Chevrolet Corvette C5 Z06
T2
7
1:58.795Kurt Rezzetano
1:58.795Kurt Rezzetano
2:01.000Kurt Rezzetano
148.6Bill Collins
43.546David Sanders
32.716David Sanders
45.806David Sanders
Chevrolet Corvette C5
T2
3
1:58.795Kurt Rezzetano
1:58.795Kurt Rezzetano
2:01.000Kurt Rezzetano
148.6Bill Collins
Chevrolet Corvette C5 Z06 (2003)
T2
1
2:00.952David Sanders
2:00.952David Sanders
2:01.802David Sanders
148.3David Sanders
43.546David Sanders
32.716David Sanders
45.806David Sanders
Chevrolet Corvette C5 Z06
T2
3
2:03.381Charlie Abell
2:03.381Charlie Abell
2:06.682John LoGiudice
143.2Charlie Abell
44.013Charlie Abell
32.809Charlie Abell
46.285Charlie Abell
Porsche 997
T2
3
1:59.458Mark Boden
1:59.458Mark Boden
1:59.679Mark Boden
149.6Mark Boden
43.497Mark Boden
32.653Mark Boden
45.646Mark Boden
Porsche 911/997 (2004)
T2
1
1:59.458Mark Boden
1:59.458Mark Boden
1:59.679Mark Boden
149.6Mark Boden
43.497Mark Boden
32.653Mark Boden
45.646Mark Boden
Porsche 997
T2
1
2:04.561Gregory Schermer
2:04.561Gregory Schermer
2:08.485Gregory Schermer
146.0Gregory Schermer
43.823Gregory Schermer
33.340Gregory Schermer
45.798Gregory Schermer
Porsche 911/997 (2011)
T2
1
2:05.828Matthew O'Toole
2:05.828Matthew O'Toole
143.8Matthew O'Toole
44.615Matthew O'Toole
33.693Matthew O'Toole
47.082Matthew O'Toole
Ford Mustang GT
T2
4
2:00.276Kurt Rezzetano
2:00.276Kurt Rezzetano
2:01.201Kurt Rezzetano
147.5Michael Lavigne
42.972Kurt Rezzetano
31.828Kurt Rezzetano
45.252Kurt Rezzetano
Ford Mustang GT (2013)
T2
1
2:00.276Kurt Rezzetano
2:00.276Kurt Rezzetano
2:01.201Kurt Rezzetano
145.0Kurt Rezzetano
42.972Kurt Rezzetano
31.828Kurt Rezzetano
45.252Kurt Rezzetano
Ford Mustang GT
T2
1
2:02.329Michael Lavigne
2:02.329Michael Lavigne
2:03.187Michael Lavigne
147.5Michael Lavigne
Ford Spec Mustang
T2
1
2:08.256Mikhail Butenko
2:08.256Mikhail Butenko
2:14.061Mikhail Butenko
132.1Mikhail Butenko
45.579Mikhail Butenko
34.080Mikhail Butenko
48.292Mikhail Butenko
Ford Mustang GT (2014)
T2
1
2:08.315Alan Phillips
2:08.315Alan Phillips
141.3Alan Phillips
45.596Alan Phillips
34.103Alan Phillips
48.146Alan Phillips
BMW M2CS Cup
T2
4
2:00.360Charlie Peter
2:00.360Charlie Peter
2:05.271Charlie Peter
147.1Charlie Peter
42.942Charlie Peter
32.040Charlie Peter
45.009Charlie Peter
BMW M2CS Cup
T2
2
2:00.360Charlie Peter
2:00.360Charlie Peter
2:05.271Charlie Peter
147.1Charlie Peter
42.942Charlie Peter
32.040Charlie Peter
45.009Charlie Peter
BMW M2CS Cup (2020)
T2
1
2:06.061Aaron Kaplan
2:06.061Aaron Kaplan
141.6Aaron Kaplan
44.785Aaron Kaplan
33.549Aaron Kaplan
47.384Aaron Kaplan
BMW M2CS Cup (2016)
T2
1
2:09.130Tom O'Toole
2:09.130Tom O'Toole
138.7Tom O'Toole
45.385Tom O'Toole
35.154Tom O'Toole
48.411Tom O'Toole
Porsche 996
T2
2
2:00.530Tim Kezman
2:00.530Tim Kezman
2:01.936Alan Kossof
148.1Tim Kezman
43.294Tim Kezman
31.663Tim Kezman
45.007Tim Kezman
Porsche 996
T2
1
2:00.530Tim Kezman
2:00.530Tim Kezman
2:06.798Tim Kezman
148.1Tim Kezman
43.294Tim Kezman
31.663Tim Kezman
45.007Tim Kezman
Porsche 911/996 (2003)
T2
1
2:00.900Alan Kossof
2:00.900Alan Kossof
2:01.936Alan Kossof
145.3Alan Kossof
43.542Alan Kossof
32.333Alan Kossof
45.511Alan Kossof
Dodge Viper SRT-10
T2
1
2:01.295Scotty B White
2:03.092Scotty B White
2:01.295Scotty B White
150.7Scotty B White
43.643Scotty B White
32.308Scotty B White
45.103Scotty B White
Porsche Carrera S
T2
2
2:01.735Mark Boden
2:01.735Mark Boden
2:03.670Joe Boden
147.4Joe Boden
43.464Mark Boden
32.413Mark Boden
45.136Mark Boden
Porsche Carrera S
T2
1
2:01.735Mark Boden
2:01.735Mark Boden
2:05.383Mark Boden
147.1Mark Boden
43.464Mark Boden
32.413Mark Boden
45.136Mark Boden
Porsche Carrera S (2008)
T2
1
2:03.670Joe Boden
2:03.670Joe Boden
147.4Joe Boden
44.108Joe Boden
33.258Joe Boden
46.106Joe Boden
Honda Civic Type-R
T2
1
2:02.700Marty Grand
2:02.700Marty Grand
2:03.356Marty Grand
148.4Marty Grand
44.163Marty Grand
32.724Marty Grand
45.779Marty Grand
Cadillac CT4-V Blackwing
T2
1
2:02.759John Heinricy
2:02.759John Heinricy
150.1John Heinricy
44.083John Heinricy
32.577John Heinricy
45.710John Heinricy
BMW M235iR
T2
1
2:03.011Gamaliel Aguilar-Gamez
2:03.011Gamaliel Aguilar-Gamez
2:08.070Gamaliel Aguilar-Gamez
143.4Gamaliel Aguilar-Gamez
43.960Gamaliel Aguilar-Gamez
32.451Gamaliel Aguilar-Gamez
46.368Gamaliel Aguilar-Gamez
BMW E92 M3
T2
3
2:03.253James Leithauser
2:03.253James Leithauser
2:03.374James Leithauser
152.5Aaron Kaplan
44.176Aaron Kaplan
33.263Aaron Kaplan
46.016Aaron Kaplan
Porsche Cayman GTS
T2
2
2:03.751Quirt Smith
2:03.751Quirt Smith
2:04.753Quirt Smith
144.6Scott Sewell
45.059Scott Sewell
34.156Scott Sewell
47.486Scott Sewell
Porsche Cayman GTS
T2
1
2:03.751Quirt Smith
2:03.751Quirt Smith
2:04.753Quirt Smith
142.3Quirt Smith
Porsche Cayman GTS (2015)
T2
1
2:07.467Scott Sewell
2:07.467Scott Sewell
144.6Scott Sewell
45.059Scott Sewell
34.156Scott Sewell
47.486Scott Sewell
Chevrolet Corvette C6
T2
2
2:04.119James Candelaria
2:04.119James Candelaria
2:05.114Brian LaCroix
146.4Brian LaCroix
44.552Brian LaCroix
33.439Brian LaCroix
46.554Brian LaCroix
Chevrolet Corvette C6
T2
1
2:04.119James Candelaria
2:04.119James Candelaria
2:05.421James Candelaria
144.6James Candelaria
Chevrolet Corvette C6 (2005)
T2
1
2:05.114Brian LaCroix
2:05.114Brian LaCroix
146.4Brian LaCroix
44.552Brian LaCroix
33.439Brian LaCroix
46.554Brian LaCroix
Chevrolet Camaro 1LE
T2
1
2:05.699William Moore
2:05.699William Moore
2:05.957William Moore
144.4William Moore
Nissan 370Z Nismo
T2
1
2:10.744Richard Kulach
2:10.744Richard Kulach
2:15.466Richard Kulach
140.1Richard Kulach
The best any driver of each car managed across the selected events, with who set it. Spellings and model years of the same car are grouped; click a row marked ▸ to see each version. Grouping is worked out from the names, so tell us if two cars are wrongly merged or split.
Rule changes between these events
Runoffs 2019 → Runoffs 2022 2019-10-05 to 2022-09-24
T2 Clarification of On-Board Fire System for T2
#27183 from Paul Messier · Rule change · TB 19-09 (2019-09 Fastrack)
neutralT2 requires onboard fire system; T3 and T4 may have one per GCR 9.3.
Effective 01/01/2020, In T2-T4, GCR section 9.1.9.2.D.10.c., make changes as follows: "All cars shall have, as a minimum, a fire extinguisher meeting the specifications of GCR Section 9.3 Fire System. Touring 2 cars must have a fire system installed. Touring Category Touring 3 and Touring 4 automobiles may be equipped with a fire system meeting the specifications of GCR Section 9.3 Fire System."
T2 Mustang Ecoboost and GT Transmission
#27439 from Carl Fung · Rule change · TB 20-01 (2020-01 Fastrack)
unclearT3 Ford Mustang EcoBoost 2015- gains three transmission gear ratio options.
In T3, Ford Mustang EcoBoost (2015-), add as follows: "4.24, 2.54,1.67, 1.24,1.00, 0.70 or 4.17, 2.34,1.52, 1.14,0.87, 0.69 or 4.696, 2.985, 2.146, 1.769, 1.520, 1.275, 1.000, .854, .689, .636"
T2 Request for Dailey Engineering Dry Sump on 2010 Camaro SS
#27514 from Van Hunter · Rule change · TB 20-01 (2020-01 Fastrack)
neutralT2 Chevrolet Camaro SS/1LE (10-14) adds Dailey Engineering dry sump P/N 20-02-0666-ASSY and other approved parts.
In T2, Chevrolet Camaro SS/1LE (10-14), add to Notes as follows: "1LE-SS Track Pack permitted. Tower Brace 2275 → 6880, oil-air separator 1265 → 3074, 75mm flat plate restrictor required. Springs up to 1200#/in front and rear permitted. Hotchkis swaybars #22109, TPR rear upper shock mount #22122, Pfadt lower control arm reinforcement # 1410135, ARE Dry Sump # LS3-3Y, Petersen # 8009W, Aviad # 009-92200, ATI # 917239, DSS # GNCA10-A, Turn One #T40RBZ28P, ZL1 front brake kit #22959672. GM Suspension Part # 2346 → 4729 and GM Aero Part #’s 2348 → 9551 & 2320 → 0132 are allowed. ANZE Suspension Rear Shock Mount #:MT-Camaro-5-R-Race1 allowed. ACS 2010- 13 Z28 Spoiler #33-4-155 permitted on the 2010-13. Allow Ground Control rear shock mounting bracket
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(red bracket P/N SP133C5). Allow Ground Control rear shock mounting bracket (red bracket P/N SP133C5). Aviad Dry Sump #001-13110 allowed. Dailey Engineering dry sump P/N 20-02-0666-ASSY allowed. Belt tensioner part number GM 1256 → 9301 allowed. Any swaybar up to 35mm front and rear allowed. Lower control arms BMR TCA026 and rear trailing arms BMR TCA026."
T2 Request for Half Shafts - 2014 Camaro SS 1LE
#27584 from William Moore · Rule change · TB 20-01 (2020-01 Fastrack)
neutralT2 Camaro SS 1LE gains approval for half shafts Drive Shaft Shop RA-5424 and RA-5425.
In T2, Chevrolet Camaro SS/1LE (10-14), add to Notes as follows: "1LE-SS Track Pack permitted. Tower Brace 2275 → 6880, oil-air separator 1265 → 3074, 75mm flat plate restrictor required. Springs up to 1200#/in front and rear permitted. Hotchkis swaybars #22109, TPR rear upper shock mount #22122, Pfadt lower control arm reinforcement # 1410135, ARE Dry Sump # LS3-3Y, Petersen # 8009W, Aviad # 009-92200, ATI # 917239, DSS # GNCA10-A, Turn One #T40RBZ28P, ZL1 front brake kit #22959672. GM Suspension Part # 2346 → 4729 and GM Aero Part #’s 2348 → 9551 & 2320 → 0132 are allowed. ANZE Suspension Rear Shock Mount #:MT-Camaro-5-R-Race1 allowed. ACS 201013 Z28 Spoiler #33-4-155 permitted on the 2010-13. Allow Ground Control rear shock mounting
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bracket (red bracket P/N SP133C5). Allow Ground Control rear shock mounting bracket (red bracket P/N SP133C5). Aviad Dry Sump #001-13110 allowed. Belt tensioner part number GM 1256 → 9301 allowed. Any swaybar up to 35mm front and rear allowed. Lower control arms BMR TCA026 and rear trailing arms BMR TCA026. Drive Shaft Shop P/N RA-5424 and RA-5425 Allowed."
T2 Request for Parity Among Vehicles
#27665 from Andrew Wickline · Rule change · TB 20-01 (2020-01 Fastrack)
fasterT2 Ford Mustang Boss 302 restrictor 54mm to 56mm; GT 5.0L 11-14 restrictor 52mm to 54mm; GT 5.0L 15-17 restrictor 50mm to 52mm; C5 Z06 weight 3525 to 3475 lbs; C6 weight 3450 to 3400 lbs; Porsche 911 997.2 restrictor 60mm to 57mm.
In T2, Ford Mustang Boss 302 (12-13), change Notes as follows: “The following parts are allowed: GT/CS Front Fascia #BR3Z-17626-AA, GT/CS Rear Fascia #AR3Z- 17F828-AA, Ford Accessories Spoiler #AR3Z-6344210-CA, 14” Brembo Brake Kit #M-2300-S, Rear Axle Cover #M-4033-K, Spring Kit #M-5300-A (M-5310-A front, M5560-A rear. Rear spring relocation to shock permitted with use of this kit), Strut Tower Brace #M-20201-S197, Swaybar Kit #M-5490-A, Jounce Bumper Kit # M-5570-A, Panhard Bar #M-4264-A, Rear Lower Control Arms #M-5649-R1, Rear Upper Shock Mount #M18197-A. Ford Racing oil pan #M-6675-M50BR permitted. Alternate metallic driveshaft is allowed. Front bushing kit M-5638-C permitted. 54mm 56mm flat plate restrictor required. Maximum
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spring rate 500 lbs (front), 300 lbs (rear)." In T2, Ford Mustang GT 5.0L (11-14), change Notes as follows: "The following parts are allowed: GT/CS Front Fascia #BR3Z-17626-AA, GT/CS Rear Fascia #AR3Z- 17F828-AA, Ford Accessories Spoiler #AR3Z-6344210-CA, 14” Brembo Brake Kit #M-2300-S, Rear Axle Cover #M-4033-K, Spring Kit #M-5300-A (M-5310-A front, M5560-A rear. Rear spring relocation to shock permitted with use of this kit), Strut Tower Brace #M-20201-S197, Swaybar Kit #M-5490-A, Jounce Bumper Kit # M-5570-A, Panhard Bar #M-4264-A, Rear Lower Control Arms #M-5649-R1, Rear Upper Shock Mount #M18197-A. Ford Racing oil pan #M-6675-M50BR permitted. Alternate metallic driveshaft permitted. Front bushing kit M-5638-C permitted. 52mm 54mm flat plate restrictor required. Maximum spring rate 500 lbs (front), 300 lbs (rear)." In T2, Ford Mustang GT 5.0L (15-17), change Notes as follows: "Ford Performance Handling Kit part #M-FR3A-M8, Sway Bars in M-FR3A-M8 kit part #M5490-E, Rear Toe Bearing part #M-5A460-M, Ford Performance Radiator part #M-8005-M8, Strut Tower Brace part# M-20201-M, Camber Bolts M-3B236-A, Solid Differential Bushings part#M-4425-M, Short Shift Kit part#M- 7210-M8, Solid Subframe Bushings part#M- 5872- M, Dampers in Handling Pack part #M- 18000-F, Ford OEM Performance Package Brembo front BBK and 380mm rotors permitted (Ford PN M- 2300-V) at +50lbs. 50mm 52mm flat plate restrictor required. 2014 Mustang GT exhaust manifolds permitted. Springs up to 800#/in front and rear permitted. Alternate metallic driveshaft permitted. Rear spring relocation to shock permitted with kit TBD. Ford Racing oil pan #M-6675-M50BR permitted." In T2, Chevrolet Corvette C-5 Incl. Fxd Cpe (98-04) Z06 (hardtop) (01-04), change Weight (lbs) as follows: "3525 3475 w/50mm flat plate restrictor) 3225 (w/45mm flat plate restrictor) 3400 (w 55mm flat plate restrictor, only permitted when using OEM Wheels and Stock Brakes)" In T2, Chevrolet Corvette C6 Coupe / Grand Sport (05-13), change Weight (lbs) as follows: "3450 3400 Add 50 lbs. for larger wheels" In T2, Porsche 911 / Carrera S 997.2 (09-12), change Notes as follows: "60mm 57mm flat plate restrictor required. Restrictor must be placed in the front of the factory engine air intake manifold opening. The plate must seal the opening so that all air entering passes through the restrictor. Ducting for coolers is free, provided it doesn’t change size and/or shape of factory body panels. Ducting of air to rotors is allowed Removal of rotor dust shields is allowed. Tender springs 60-60- 25, and spring holders ZT-1-X002A01 allowed. Springs up to 800#/in front and 1000 #/in rear allowed. Sway bar size and configuration is free. Spoilers & bumper/air dams are free provided they do not exceed the max. body width by any amount and/or the max. body length by more than 1”. Rear wings may be no higher than the roofline. Camber adjustment slots may be elongated. Porsche Motorsport front and rear control arms allowed. PDK transmission permitted at +100lbs. Alternate exhaust manifold Cargraphicts CARP97DFIFKR allowed."
T2 Request for 2016-2020 Camaro SS Help
#27776 from Bob Demers · Rule change · TB 20-01 (2020-01 Fastrack)
fasterT2 Chevrolet Camaro 1LE 2016- weight reduced from 3600 to 3550 lbs.
In T2, Chevrolet Camaro, 1LE (2016-), change Weight as follows: "3600 3550"
T2 Request for Competitive Adjustments to Honda Civic Type R
#27839 from Marty Grand · Rule change · TB 20-01 (2020-01 Fastrack)
fasterT2 Honda Civic Type-R (2017-) weight reduced from 3050 to 3000 lbs; tire TIR requirement increased from 50mm to 51mm.
In T2, Honda Civic Type-R (2017-), change Weight as follows: "3050 3000" In T2, Honda Civic Type-R (2017-), change Notes as follows: "HPD CAT Delete pipe 18150-F23S-R6; HPD 4th Gear Set 23460-F23S-R6; HPD Differential41100-F23S- R6; HPD RR Damper Mount 52670-F23S-A6; HPD RR Spring Adjuster52691-F23S-A6; HPD Adjustable RR Upper Arm 52390-F23S-A6; HPD ABS Modulator57100-F23S-R6; 50mm 51mm TIR required. Alternate grill Cuztom Tuning FG-CIV16-V3-TR-BKallowed. Any sway bar front/rear up to 30mm allowed. Front springs u p to 800lb allowed, rear springs up to 2000lb allowed, Aftermarket Intercooler allowed."
T2 T4 RX8 Classification Error
#27902 from Raymond Blethen · Rule change · TB 20-01 (2020-01 Fastrack)
neutralMazda RX-8 Base/R3 (04-12) reclassified in T3 and T4 to include Sport and GT variants.
In T3, Mazda RX-8 Base/R3 (04-12), add as follows: "Mazda RX-8 Base/R3/Sport/GT (04-12)" In T4, Mazda RX-8 Base/R3 (04-12), add as follows: "Mazda RX-8 Base/R3/Sport/GT (04-12)"
T2 Request to add Toyota 86 GT to Spec Line
#27910 from John Heinricy · Rule change · TB 20-01 (2020-01 Fastrack)
neutralToyota 86 GT (2017-) added to T3 and T4 Spec Line.
In T3, Toyota 86 (2017-), add as follows: "Toyota 86, GT (2017-)" In T4, Toyota 86 (2017-), add as follows: "Toyota 86, GT (2017-)"
T2 Please Switch the Solstice GXP as Specified in T2, to T3
#27413 from Michael Pettiford · Rule change · TB 20-02 (2020-02 Fastrack)
fasterPontiac Solstice GXP and Saturn Sky move from T2 to T3; wheels widen to 18 x 9.5 inches, Sky weight drops to 3200 lbs.
In T3 Spec Lines, add T2 Spec information for Pontiac Solstice GXP Coupe / Convertible (07-09) with the following changes in Max Wheel Size: "18 x 8 9.5" In T3 Spec Lines, add T2 Spec information for Saturn Sky / Convertible (07-09) with the following changes in Max Wheel Size: "18 x 8 9.5" In T3 Spec Lines, add T2 Spec information for Saturn Sky / Convertible (07-09) with the following changes in Weight:
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"3250 3200"
T2 Request for Two Piece Stop Tech Brake Rotors
#27582 from William Moore · Rule change · TB 20-02 (2020-02 Fastrack)
neutralT2 cars now allowed to use ferrous metal 2-piece brake rotors within 5% of OE diameter.
In GCR, Section 9.1.9.2.D.6.a.6., add as follows: "In T2 only- Ferrous metal 2-piece rotors allowed, must be within 5% of OE diameter."
T2 Request to Classify all Mazda RX8 Models in T3/T4
#27606 from Raymond Blethen · Rule change · TB 20-02 (2020-02 Fastrack)
neutralMazda RX-8 Base/R3/Sport/GT (04-12) classified in T3 effective 2020-02-01.
In T3, change Spec Lines as follows: "Mazda RX-8 Base/R3/Sport/GT (04-12)" In T3, change Spec Lines as follows: "Mazda RX-8 Base/R3/Sport/GT (04-12)"
T2 Request for Alternative Brake Kit on Nissan 370Z
#27912 from RICHARD KULACH · Rule change · TB 20-02 (2020-02 Fastrack)
slowerT2 Nissan 370Z gains alternative Stoptech brake kit option with 50 lb weight penalty.
In T2, 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. 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. 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, SPL rear toe arms #SPL RTA Z34, SPL rear traction arms #SPL RTR Z34, SPL front camber arms #SPL FUA Z34, SPL rear mid link #SPL RML Z34. 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
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rear."
T2 2015- Current Ecoboost Mustang
#27971 from Kurt Rezzetano · Rule change · TB 20-02 (2020-02 Fastrack)
fasterT2 Ford Mustang Ecoboost 2.3 loses 100 lbs to 3400, wheels widen to 19 x 11, intercooler TIR increases to 50mm.
In T2 Spec Lines, Ford Mustang Ecoboost 2.3 (2015-), change Weight as follows: "3500 3400" In T2 Spec Lines, Ford Mustang Ecoboost 2.3 (2015-), change Wheels as follows: "18 x 11 19 x 11" In T2 Spec Lines, Ford Mustang Ecoboost 2.3 (2015-), change Notes as follows: "44mm 50mm TIR required. Speed Factory Intercooler, part # SF-55-002 permitted. BMR rear upper control arm camber links part#UTCA064 permitted. Performance Package Brembo front BBK and 380mm one-piece rotors permitted (Ford PN M-2300-V) at +100lbs. Optional: 6 speed automatic
In T2 Spec Lines, Ford Mustang GT5.0L (15-17), change Wheels as follows: "18 x 11 19 x 11" In T2 Spec Lines, Ford Mustang GT5.0L (15-17), change Notes as follows: "Solid Differential Bushingspart#M-4425-M, Short Shift Kit part#M- 7210-M8, Solid Subframe Bushings part#M- 5872-M, Dampers in Handling Pack part #M-18000-F, Ford OEM Performance Package Brembofront BBK and 380mm rotors permitted (Ford PN M-2300-V) at no weight penalty+50lbs." In T2 Spec Lines, Ford Mustang GT5.0L (2018-), change Notes as follows: "Pack part #M-18000-F, Ford OEM Performance Package Brembo front BBK and 380mm rotors
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permitted (Ford PN M-2300-V) at no weight penalty +50lbs."
Applies to Ford Mustang GT on this page: Michael Lavigne, Mikhail Butenko
T2 Request to Readjust the T2 Porsches
#27746 from Joe Aquilante · Rule change · TB 20-01 (2020-01 Fastrack)
slowerT2 Porsche 911/997 (06-08, 09-12, Carrera S 06-08) aero rules relaxed; 997.2 adds 60mm restrictor and PDK +100lbs option.
In T2, Porsche 911/ 997 (06-08), change Notes effective 3/1/2020 as follows: "Ducting for coolers is free, provided it doesn’t change size and/or shape of factory body panels. Ducting of air to rotors is allowed Removal of rotor dust shields is allowed. Tender springs 60-60-25, and spring holders ZT-1-X002A01 allowed. Springs up to 800#/in front and 1000 #/in rear allowed. Sway bar size and configuration is free. Spoilers & bumper/ airdams are free provided they do not exceed the max. body width by any amount and/or the max. body length by more than 1”. Rear wings may be no higher than the roofline. Camber adjustment slots may be elongated. Porsche Motorsport front and rear control arms allowed."
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In T2, Porsche 911 / Carrera S 997.2 (09-12), change Notes effective 3/1/2020 as follows: "60mm flat plate restrictor required. Restrictor must be placed in the front of the factory engine air intake manifold opening. The plate must seal the opening so that all air entering passes through the restrictor. Ducting for coolers is free, provided it doesn’t change size and/or shape of factory body panels. Ducting of air to rotors is allowed Removal of rotor dust shields is allowed. Tender springs 60-60- 25, and spring holders ZT-1-X002A01 allowed. Springs up to 800#/in front and 1000 #/in rear allowed. Sway bar size and configuration is free. Spoilers & bumper/air dams are free provided they do not exceed the max. body width by any amount and/or the max. body length by more than 1”. Rear wings may be no higher than the roofline. Camber adjustment slots may be elongated. Porsche Motorsport front and rear control arms allowed. PDK transmission permitted at +100lbs. Alternate exhaust manifold Cargraphicts CARP97DFIFKR allowed." In T2, Porsche Carrera S (06-08), change Notes: "60mm flat plate restrictor required. Ducting for coolers is free, provided it doesn’t change size and/or shape of factory body panels. Ducting of air to rotors is allowed Removal of rotor dust shields is allowed. Tender springs 60-60-25, and spring holders ZT-1-X002A01 allowed. Springs up to 800#/in front and 1000 #/in rear allowed. Sway bar size and configuration is free. Spoilers & bumper/air dams are free provided they do not exceed the max. body width by any amount and/or the max. body length by more than 1”. Rear wings may be no higher than the roofline. Camber adjustment slots may be elongated. Porsche Motorsport front and rear control arms allowed."
T2 Limit Changes to the 997.2 Porsche
#28242 from Thomas Herb · Rule change · TB 20-04 (2020-04 Fastrack)
slowerT2 Porsche 911 997.2 allows GT3 Cup front fascia with 75 lb penalty; OEM rear deck lid and GT3 Cup splitter now required or prohibited.
In T2, Porsche 911 / 997 (06-08) Spec Lines, add to Notes as follows: "OEM rear deck lid required. OE Porsche GT3 Cup front fascia number "997-505-980-97-G2X FRONT BUMPER GT3 CUP" or equivalent aftermarket allowed (+75lb). GT3 Cup splitter not allowed." In T2, Porsche 911 / Carrera S 997.2 (09-12) Spec Lines, add to Notes as follows: "OEM rear deck lid required. OE Porsche GT3 Cup front fascia number "997-505-980-97-G2X FRONT BUMPER GT3 CUP" or equivalent aftermarket allowed (+75lb). GT3 Cup splitter not allowed."
unclearT2 Ford Mustang GT 5.0L 15-17 transmission gear ratios corrected to two allowed options.
In T2, Ford Mustang GT 5.0L (15-17) Spec Lines, change Gear Ratios as follows: "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"
T2 Please Add the Following BBK to Allowed List for E92 M3
#28421 from ALI SALIH · Rule change · TB 20-05 (2019-05 Fastrack)
neutralT2 BMW E92 M3 08-14 gains approved AP Racing brake kit part numbers 13.01.10038 front, 13.01.10053 rear.
In T2, BMW E92 M3 (08-14), add to notes as follows: "AP Racing: Front Part Number 13.01.10038, Rear Part Number 13.01.10053 permitted."
T2 C5 Weight Adjustment
#28433 from Steven Glaab · Rule change · TB 20-05 (2019-05 Fastrack)
fasterT2 Chevrolet Corvette C5 Z06 loses 50 lbs with 45mm restrictor, to 3175; 50 lbs with 55mm restrictor, to 3350.
In T2, Chevrolet Corvette C-5 Incl. Fxd Cpe (98-04) Z06 (hardtop) (01-04), change weight as follows: "3225 3175 (w/45mm flat plate restrictor) 3400 3350 (w 55mm flat plate restrictor, only permitted when using OEM Wheels and Stock Brakes)"
T2 Z3M Roadster Weight
#28437 from Ryan Ciechanski · Rule change · TB 20-05 (2019-05 Fastrack)
fasterT3 BMW Z3 M & Coupe 1998-1999 weight reduced from 3350 to 3150 lbs.
In T3, BMW Z3 M & Coupe, add years and change weight as follows: "(98-99)" "3350 3150"
T2 Request to Classify 2004 Mercedes Benz 320 CLK
#27663 from Robert Gary · Rule change · TB 20-06 (2020-06 Fastrack)
neutral2004 Mercedes Benz CLK 320 Coupe classified in T4 at 3200 lbs with 3299cc engine and Eibach PN# 2563.140 springs allowed.
In T4, classify the 2004 Mercedes Benz CLK 320 Coupe as follows:
A specification table follows in the original; it is not shown here.
neutralT1 and T2 Corvettes may convert leaf spring suspension to coilover with 800 lb max spring rate allowed.
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:
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"Aftermarket leaf spring suspension allowed 800 lb max. Coilover suspension allowed coil springs allowed 800 lb max." In T1 Spec Lines, Chevrolet Corvette Z06 (06-12), change Notes as follows: "Leaf spring suspension may be converted to conventional coilover suspension in T1 only."
Applies to Chevrolet Corvette C5 Z06 on this page: Kurt Rezzetano, Bill Collins, Christopher Qualls, David Sanders, Charlie Abell, John LoGiudice, Joe Aquilante
Applies to Chevrolet Corvette C6 on this page: James Candelaria, Brian LaCroix
T2 Request to Add a Vehicle to the Roster (contd.)
#27698 from Robert Gary · Rule change · TB 20-07 (2020-08 Fastrack)
unclearCannot read: letter references external document #27663 not provided.
Thank you for your letter. Please refer to letter #27663 in the June 2020 Fastrack. What Do You Think
T2 Request brake upgrade and electric power steering pump
#28946 from Eric McCoy · Rule change · TB 20-07 (2020-08 Fastrack)
fasterT2 Porsche Cayman S, Spyder (10-12) gains brake, suspension, and drivetrain upgrades: StopTech calipers, 800#/in front and 1000#/in rear springs, Porsche control arms, PDK allowed.
In T2, Spec Lines, Porsche Cayman S, Spyder (10-12) , add to notes as follows: "Ducting for coolers is free, provided it doesn’t change size and/or shape of factory body panels. Springs up to 800#/in front and 1000 #/in rear allowed. Ducting of air to rotors is allowed. Porsche motorsports item # 9913140158C allowed. Stop Tech calipers #83.788.6700.R1 (f) #83.799.0046.R1 (r ) allowed. Removal of rotor dust shields is allowed. Spoilers & bumper/airdams are free provided they do not exceed the max. body width by any amount and/or the max. body length by more than 1”. Rear wings may be no higher than the roofline. Sway bar size and configuration is free Camber adjustment slots may be elongated. Porsche Motorsport rear and front control arms allowed. PDK allowed."
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Taken Care Of
T2 Request to correct GCR for 2018+ FORD Mustang GT & Ecoboost
#28803 from Carl Fung · Rule change · TB 20-08 (2020-08 Fastrack)
neutralT2 Ford Mustang EcoBoost and GT 5.0L gain three optional gear ratio sets for competition use.
In T2, Ford Mustang EcoBoost (2015-), Gear Ratios, add as follows: "4.24, 2.54,1.67, 1.24,1.00, 0.70 or 4.17, 2.34,1.52, 1.14,0.87, 0.69 or 4.696, 2.985, 2.146, 1.769, 1.520, 1.275, 1.000, .854, .689, .636" In T2, Ford Mustang GT 5.0L (2018-), Gear Ratios, add as follows: "4.24, 2.54,1.67, 1.24,1.00, 0.70 or 4.17, 2.34,1.52, 1.14,0.87, 0.69 or 4.696, 2.985, 2.146, 1.769, 1.520, 1.275, 1.000, .854, .689, .636"
T2 Request to Clarify New 2-piece Brake Rotor Rule
#29106 from Andrew Aquilante · Rule change · TB 20-09 (2020-09 Fastrack)
neutralT2 brake rotors expand from ferrous metal only to 2-piece ferrous disks with aluminum hats, within 5% OE diameter.
In GCR, 9.1.9.2.D.6.a.6., change wording as follows: "Stock replacement brake rotors may be obtained from sources other than the manufacturer provided they are the exact equivalent of the stock rotors. In T2 only- Ferrous metal 2-piece rotors with ferrous metal rotor disks and aluminum hats are allowed, must be within 5% of OE diameter."
T2 please consider BoP for the following cars in T2
fasterT2 Corvette C-5 Z06 loses 50 lbs to 3425; Camaro SS/1LE loses 50 lbs to 3650; Mustang GT and Boss 302 gain 275 to 295 tyres.
In T2 Spec Lines, Chevrolet Corvette C-5 Incl. Fxd Cpe (98-04) Z06 (hardtop) (01-04), change Weight as follows: "3475 3425" In T2 Spec Lines, Chevrolet Camaro SS/1LE (10-14), change Weight as follows: "3700 3650" In T2 Spec Lines, Ford Mustang GT 5.0L (11-14), change Tire Size as follows: "275 295" In T2 Spec Lines, Ford Mustang Boss 302 (12-13), change Tire Size as follows: "275 295"
Applies to Chevrolet Corvette C5 Z06 on this page: Kurt Rezzetano, Bill Collins, Christopher Qualls, David Sanders, Charlie Abell, John LoGiudice, Joe Aquilante
Applies to Chevrolet Camaro 1LE on this page: William Moore
Applies to Ford Mustang GT on this page: Kurt Rezzetano, Michael Lavigne, Mikhail Butenko, Alan Phillips
T2 Request clarification on most recent approval by the Board
#29284 from Eric McCoy · Rule change · TB 20-09 (2020-09 Fastrack)
neutralT2 Porsche Cayman S, Spyder (10-12) allows 800#/in front and 1000#/in rear springs, cooler ducting, rotor ducting, and specific Porsche and StopTech brake items.
In T2 Spec Lines, Porsche Cayman S, Spyder (10-12), add to notes as follows: "Ducting for coolers is free, provided it doesn’t change size and/or shape of factory body panels. Springs up to 800#/in front and 1000 #/in rear allowed. Ducting of air to rotors is allowed. Porsche motorsports item # 9913140158C allowed. Stop Tech calipers #83.788.6700.R1 (f) #83.799.0046.R1 (r ) with 343 mm front rotor allowed."
T2 Request 2018+ mustang swaybar update
#28659 from Carl Fung · Rule change · TB 20-10 (2020-10 Fastrack)
neutralT2 Ford Mustang GT 5.0L and Ecoboost 2.3 sway bar part numbers added to notes.
In T2 Ford Mustang GT 5.0L (15-17), add sway bar part number to the notes as follows: "Ford Performance Handling Kit part #M-FR3A-M8, Sway Bars in M-FR3A-M8 kit part #M5490-E or M5490-G," In T2, Ford Mustang Ecoboost 2.3 (2015-), add sway bar part number to the notes as follows: "Ford Performance Handling Kit part #M-FR3A-M8, Sway Bars in M-FR3A-M8 kit part #M5490-E or M5490-G," In T2, Ford Mustang GT 5.0L (2018-), add sway bar part number to the notes as follows: "Ford Performance Handling Kit part #M-FR3A-M8, Sway Bars in M-FR3A-M8 kit part #M-5490-E or M5490-G,"
T2 Request to Reevaluate T2 Spec Line for E92 M3
#28266 from ALI SALIH · Rule change · TB 20-12 (2020-12 Fastrack)
fasterT2 BMW E92 M3 (08-14) weight reduced 50 lbs to 3475, with detailed brake, spring, sway bar, and restrictor specs.
In T2, Spec Lines, BMW E92 M3 (08-14) change weight as follows: "3525 3475" In T2, Spec Lines, BMW E92 M3 (08-14) change Notes as follows: "The following aftermarket brakes are allowed with an additional 75lb penalty: StopTech Brake Kit permitted: 380x35mm 6- piston caliper Part# 83.160.6D00.XX(F) and 355 x 35mm 4-piston caliper Part #83.160.0047.XX (R). Brembo Brake kit permitted: Front brake kit #1N2.8505A and rear brake kit #2P2.8033A. Alcon Brake Kit permitted: (F) part #BKF9751ZG70L 6-piston caliper and (R) 4-piston caliper (R) part #BKR9856B20L. AP Racing: Front Part Number 13.01.10038, Rear Part Number 13.01.10053 permitted. Springs up to 800#/in front and rear allowed. Rear spring may be located on shock. Any front swaybar front 32.2mm
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and 25.4 rear allowed. RD Sport F & R sway bar kit part # 1968190110. 80 mm flat plate restrictor required. Restrictor must be placed in the front of the factory engine air intake manifold opening. The plate must seal the opening so that all air entering passes through the restrictor. DCT transmission allowed. Rear upright may be reinforced so that the lateral arm is mounted in a double shear mount. OEM brake ducts may be used in the factory configuration and may serve no other purpose than the factory intent. AP Racing: Front Part Number 13.01.10038, Rear Part Number 13.01.10053 permitted."
T2 Request for Parity Among Vehicles Including S550 Mustang
#29486 from Andrew Wickline · Rule change · TB 20-12 (2020-12 Fastrack)
fasterT2 Corvette C5 Z06 restrictor sizes increase to 53mm and 58mm; C6 LS2 to 56mm, LS3 to 50mm; Camaro SS/1LE weight drops 75 lbs to 3625; 2016+ Camaro restrictor to 56mm; Mustang GT 11-14 to 58mm, 15-17 to 55mm, 2018+ to 53mm; Viper SRT-10 th…
In T2, Chevrolet Corvette C-5 Incl. Fxd Cpe (98-04) Z06 (hardtop) (01-04) Spec Lines, change Weight as follows: "3425 w/50 53mm flat plate restrictor) 3175 (w/45mm flat plate restrictor) 3350 (w 55 58mm flat plate restrictor, only permitted when using OEM Wheels and Stock Brakes)" In T2, Chevrolet Corvette C6 Coupe / Grand Sport (05-13) Spec Lines, change Notes as follows: "C6 T1 Suspension kit and Z51 option allowed. Floor may be modified to facilitate installation of cage mounting plates Removable roof panel shall be installed. The following parts are allowed: GM oil pan #12630477; GM radiator baffle # 25953429 (LS3 only); fan shroud, Phoenix part # 1005422; Canton Accusump part # CA24006 or # CA24024, along with Electric solenoid W/ epc # CA24273, Accusump Check Valve # CA2428, and Wheel to Wheel Adapter block # 0760-50001, and related hoses and
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mounting brackets; 180 degree thermostat Hypertech # 1015; Lingenfelter Performance Engineering #L310055204 thermostat (LS2 only); HD oil pressure shim Phoenix part # 1005421. Wrapping of tie-rod ends to shield heat is permitted. Trimming of the lower edge of the center of the air dam is allowed up to a depth of 3.9 cm. ARE dry sump system part #3021 S permitted; the following parts are included: mount w/tensioner and spacer #3020YM, serpentine belt #4032S, pulley #4SERP, oil tank #7030, tank bracket #7000, breather catch can # 7100, filter adapter #4010, damper assembly #8005. Aviaid Dry Sump System part number 008-10001 is permitted; the following parts are included: 3-stage pump 13111-1182, mounting hardware 40082 and 40018-83-1, HTD pump pulley 11649, HTD belt 46476, ATI damper assembly 917289, pan assembly 152-52504-10001, and tank assembly 110-50020-10001. The oil tank for either system shall be installed in the current battery location and the battery must be relocated to the same location as the 08 Corvette Z06; GM battery mounting bracket and hardware must be used. Alternate wheel bearings SKF Part # BAR 5049C permitted. LS2: 53 56mm flat plate restrictor is required. LS3: 48 50mm flat plate restrictor is required. The restrictor must be placed in the front of the factory throttle body manifold opening. The plate must seal the opening so that all air entering passes through the restrictor. Aftermarket leaf spring suspension allowed 800 lb max. Coilover suspension allowed coil springs allowed 800 lb max." In T2, Chevrolet Camaro SS/1LE (10-14) Spec Lines, change Weight as follows: "3700 3625" In T2, Chevrolet Camaro, 1LE (2016-) Spec Lines, change Notes as follows: "Part numbers: 84004136, 23301611, 19352519, 19180514, 23245471 allowed. OEM brake kit #23245471 allowed. 53 56mm flat plate restrictor required. Springs up to 1200#/ in front and rear permitted. Swaybar kit (part number #84242386) permitted. Any front 355mm 4 piston caliper and 2 piece rotors permitted. Dry sump permitted. Any front sway bar 35mm front and 30mm rear permitted. Rear spring relocation to shock permitted. ZL1 1LE Spec Solid Cradle Mounts allowed, Chevrolet Performance part number 84341929." In T2, Ford Mustang GT 5.0L (11-14) Spec Lines, change Notes as follows: "The following parts are allowed: GT/CS Front Fascia #BR3Z-17626-AA, GT/CS Rear Fascia #AR3Z-17F828-AA, Ford Accessories Spoiler #AR3Z-6344210-CA, 14” Brembo Brake Kit #M-2300-S, Rear Axle Cover #M-4033-K, Spring Kit #M-5300-A (M-5310-A front, M5560-A rear. Rear spring relocation to shock permitted with use of this kit), Strut Tower Brace #M-20201-S197, Swaybar Kit #M-5490-A, Jounce Bumper Kit # M-5570-A, Panhard Bar #M-4264-A, Rear Lower Control Arms #M-5649-R1, Rear Upper Shock Mount #M18197-A. Ford Racing oil pan #M-6675-M50BR permitted. Alternate metallic driveshaft permitted. Front bushing kit M-5638-C permitted. 54 58mm flat plate restrictor required. Maximum spring rate 500 lbs (front), 300 lbs (rear)." In T2, Ford Mustang GT 5.0L (15-17) Spec Lines, change Notes as follows: "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-3B236- A, Solid Differential Bushings part#M-4425-M, Short Shift Kit part#M- 7210-M8, Solid Subframe Bushings part#M- 5872-M, Dampers in Handling Pack part #M-18000-F, Ford OEM Performance Package Brembo front BBK and 380mm rotors permitted (Ford PN M-2300-V) at no weight penalty. 52 55mm flat plate restrictor required. 2014 Mustang GT exhaust manifolds permitted. Springs up to 800#/in front and rear permitted. Alternate metallic driveshaft permitted. Rear spring relocation to shock permitted with kit TBD. Ford Racing oil pan #M-6675-M50BR permitted." In T2, Ford Mustang GT 5.0L (2018-) Spec Lines, change Notes as follows: "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-3B236- A, Solid Differential Bushings part#M-4425-M, Short Shift Kit part#M- 7210-M8, Solid Subframe Bushings part#M- 5872-M, Dampers in Handling Pack part #M-18000-F, Ford OEM Performance Package Brembo front BBK and 380mm rotors permitted (Ford PN M-2300-V) at no weight penalty. 50 53mm flat plate restrictor required. 2014 Mustang GT exhaust manifolds permitted. Springs up to 800#/in front and rear permitted. Alternate metallic driveshaft permitted. Rear spring relocation to shock permitted with kit TBD. Ford Racing oil pan #M-6675-M50BR permitted." In T2, Dodge Viper SRT-10 incl. coupe (03-06) Spec Lines, change Notes as follows: "If a hardtop is used, it shall be the detachable Autoform hardtop (latches shall be replaced with positive fasteners), convertible top shall be removed. Throttle restrictor between each throttle body and plenum is mandatory: .060” flat steel plate with one 40 43mm hole. A .250” thick (max) steel or aluminum spacer is permitted between the throttle body and the restrictor to provide clearance for the throttle butterfly. This spacer shall replicate the dimensions of the stock throttle body flange (i.e. throttle bore, bolt pattern, idle-air bypass port dimensions, etc.) Throttle body spacer bore(s) shall be no larger than the stock throttle body bore diameter at the gasket surface, and shall not be radiused in any way. Throttle restrictor may include idle air control and/or PCV orifice. The following parts are allowed:, Mopar performance fan delete kit #P5153260, Phoenix SRT10 electric fan kit #PPI123321, Mopar swing oil pickup kit # 4510174, Trans. mount # P4510179, Dodge Motorsports T1 suspension kit part # P5153251 Hypercoil springs #188A0750 (F) and 188A0800 (R) are allowed. B&M Shifter (PN45055) is permitted. Oil pan part #5037735AC, oil pick up part #5038022AB, oil pick up tube part #5037312AE are allowed. Maximum front camber of -3.0 w/ Dodge Motorsports T1 suspension package allowed." In T2, Porsche 911 / Carrera S 997.2 (09-12) Spec Lines, change Notes as follows: "57 60mm flat plate restrictor required. Restrictor must be placed in the front of the factory engine air intake manifold opening. The plate must seal the opening so that all air entering passes through the restrictor. Ducting for coolers is free, provided it doesn’t change size and/or shape of factory body panels. Ducting of air to rotors is allowed Removal of rotor dust shields is allowed. Tender springs 60-60-25, and spring holders ZT-1-X002A01 allowed. Springs up to 800#/in front and 1000 #/in rear allowed. Sway bar size and configuration is free. Camber adjustment slots may be elongated. Porsche Motorsport front and rear control arms allowed. PDK transmission permitted at +100lbs. Alternate exhaust manifold Cargraphicts CARP97DFIFKR allowed. OEM rear deck lid required. OE Porsche GT3 Cup front fascia number “997-505-980-97-G2X FRONT BUMPER GT3 CUP” or equivalent aftermarket allowed (+75lb). GT3 Cup splitter not allowed." In T2, BMW Z4M (06-08) Spec Lines, change Tire Size as follows: "275 295" In T2, Porsche 911/ 997 (06-08) Spec Lines, change Weight as follows: "3250 3200"
T2 Alfa Romeo 4C Launch Edition
#29531 from John Weisberg · Rule change · TB 20-12 (2020-12 Fastrack)
neutralT3 Alfa Romeo 4C Launch Edition now allowed in Spec Lines.
In T3, Spec Lines, Alfa Romeo 4C (2015-), add to Notes as follows: "Launch Edition allowed"
T2 Request to Classify BMW M2 CS
#29523 from Victor Leleu · Rule change · TB 21-01 (2021-01 Fastrack)
neutralBMW M2 CS Cup 2020+ classified in T2 at 3625 lbs with 2979cc engine, 10.5x18 wheels, 295 tires.
In T2, classify the BMW M2 CS Cup 2020+ as follows:
A specification table follows in the original; it is not shown here.
neutralT3 and T4 FR-S, 86, and BRZ year ranges capped: T3 at 2021, T4 at 2017-2021.
In T3, Spec Lines, Scion FR-S/ Toyota 86, GT (13-20), change Year as follows: "(13-20 21)" In T3, Spec Lines, Subaru BRZ (13-20), change Year as follows: "(13-20 21)" In T4, Spec Lines, Subaru BRZ (2017-), change Year as follows: "(20 17-21)" In T4, Spec Lines, Toyota 86, GT (2017-), change Year as follows: "(20 17-21)"
T2 Request Addition of BMW M240iR
#29503 from Steve Streimer · Rule change · TB 21-02 (2021-02 Fastrack)
slowerT2 BMW M235iR allows 240iR/Evo package with 50 lb penalty, must run DOT tires.
In T2, BMW M235iR (-2016), add to Notes the following: "240iR/Evo package allowed with 50 lb penalty. Must run DOT tires."
T2 2021 Toyota Supra
#29567 from Ryan Saari · Rule change · TB 21-02 (2021-02 Fastrack)
neutralToyota Supra 2020- newly classified in T2 at 3450 lbs minimum weight with 295 tire and 19-inch wheels.
In T2, classify the Toyota Supra (2020-) as follows: T2 Bore x Stroke(mm)/ Disp.
A specification table follows in the original; it is not shown here.
T2 Request Cold Air Intake for Honda Civic Type R
#29942 from Marty Grand · Rule change · TB 21-02 (2021-02 Fastrack)
neutralT2 Honda Civic Type-R gains allowance for PRL cold air intake #PRL PRL-HCR-INT-HVI.
In T2 Spec Lines, Honda Civic Type-R (2017-), add to the notes as follows: "PRL Air intake allowed #PRL PRL-HCR-INT-HVI"
Applies to Honda Civic Type-R on this page: Marty Grand
fasterT2 Porsche Carrera S 997.2 (06-08) weight reduced 50 lbs to 3225.
In T2 Spec Lines, Porsche Carrera S (06-08), change as follows: "Porsche Carrera S 997.2 (06-08)" Weight (lbs): "3275 3225" In T2 Spec Lines, Porsche 911/ 997 (06-08), change as follows: "Porsche 911/ 997.1 (06-08)"
Applies to Porsche Carrera S on this page: Mark Boden, Joe Boden
Applies to Porsche 997 on this page: Gregory Schermer
neutralT2 BMW M2 CS Cup 2020- and M235iR clarify homologation notes for DOT tires and BMW Motorsports components.
In T2 Spec Lines, BMW M2 CS Cup 2020-, change Notes as follows: "DOT approved tires required. All other components must be A as homologated from BMW Motorsports No other changes or touring rule allowances permitted." In T2 Spec Lines, BMW M235iR (-2016), change Notes as follows: "DOT approved tires required. All other components must be Aas homologated from BMW Motorsports No other changes or touring rule allowances permitted. Must conform to World-Challenge VTS 2/25/2016 rev.2."
Applies to BMW M2CS Cup on this page: Charlie Peter, Nathan Martin, Aaron Kaplan
Applies to BMW M235iR on this page: Gamaliel Aguilar-Gamez
slowerT2-T4 clutch disc and pressure plate must be at least 95% of factory OEM weight.
In GCR, Section 9.1.9.2.D.1.i.5., change as follows: "T2-T4 only: Any clutch disc and pressure plate of OEM diameter may be used, provided that they shall be bolted directly to an unmodified stock flywheel and is no lighter than 95% of the factory OEM clutch disc and pressure plate."
neutralT2 Toyota Supra 2020- spring rates limited to 800# front and 1000# rear maximum.
In T2 Spec Lines, Toyota Supra (2020-), change Notes as follows: "Springs allowed 800# max (f) 1000 max (r)"
T2 C5/6 Corvette in T1, T1-LP and T2 Dry Sump Standardization
#29046 from Steven Glaab · Rule change · TB 21-05 (2021-05 Fastrack)
neutralT2 C5 and C6 Corvettes permit specific dry sump kits and minor air dam trimming up to 3.9 cm depth.
In T2 Spec Lines, Chevrolet Corvette C-5 Incl. Fxd Cpe (98-04) Z06 (hardtop) (01-04), add to notes as follows: "OEM or equivalent carbon fiber hood is allowed. ARE dry sump kit #3021S, Dailey 20-02-0666 or Aviad dry sump kit #008-10001 allowed." In T2 Spec Lines, Chevrolet Corvette C6 Coupe / Grand Sport (05-13), add to notes as follows: "Trimming of the lower edge of the center of the air dam is allowed up to a depth of 3.9 cm. Dailey Dry Sump #20-02-0666 permitted, ARE dry sump system part #3021 S permitted;" In T2 Spec Lines, Chevrolet Corvette Z06 (06-12), add to notes as follows: "Trimming of the lower edge of the center of the air dam is allowed up to a depth of 3.9 cm. Dailey Dry Sump #20-02-0666
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permitted, ARE dry sump system part #3021 S permitted;"
Applies to Chevrolet Corvette C5 Z06 on this page: Kurt Rezzetano, Bill Collins, Christopher Qualls, David Sanders, Charlie Abell, John LoGiudice, Joe Aquilante
Applies to Chevrolet Corvette C6 on this page: James Candelaria, Brian LaCroix
T2 Request for Chevrolet Camaro 1LE (2016-) Auto Trans
#29067 from William Moore · Rule change · TB 21-05 (2021-05 Fastrack)
unclearT2 Chevrolet Camaro 1LE auto trans gets new gear ratios and 2.77 final drive ratio.
In T2 Spec Lines, Chevrolet Camaro, 1LE (2016-), change as follows: Gear Ratios: "Auto - 4.70, 2.99, 2.15, 1.80, 1.52, 1.28, 1.00, .85, .69, .64" Final Drive: "Manual - 3.73 Auto - 2.77"
Applies to Chevrolet Camaro 1LE on this page: William Moore
T2 Request E46 M3 Minimum Competition Weight
#29429 from Ryan Szyjakowski · Rule change · TB 21-05 (2021-05 Fastrack)
fasterT2 BMW M3 01-06 minimum competition weight drops 100 lbs to 3000.
In T2 Spec Lines, BMW M3 (01-06), change Weight as follows: "3100 3000"
Applies to BMW E92 M3 on this page: James Leithauser, Aaron Kaplan, Daniel Spirek
T2 Request to add 2015 to Chevrolet Camaro SS/1LE 2010-2014
#29736 from William J. Moore · Rule change · TB 21-05 (2021-05 Fastrack)
neutralT2 Chevrolet Camaro SS/1LE model years expanded from 2010–2014 to 2010–2015.
In T2 Spec Lines, Chevrolet Camaro SS/1LE (10-14), change as follows: "(10-14 5)"
Applies to Chevrolet Camaro 1LE on this page: William Moore
In T3 Spec Lines, Honda Civic Type-R(2017-), add to notes as follows: "2020+ model years allowed part #45251-TGH-A01 with a 25lb penalty."
T2 Mustang S550 Parity in T2
#29925 from Scotty White · Rule change · TB 21-06 (2021-06 Fastrack)
fasterT2 Ford Mustang GT 5.0L 15-17 restrictor grows 55mm to 58mm; 2018- grows 53mm to 55mm.
In T2 Spec Lines, Ford Mustang GT 5.0L(15-17), change Notes as follows: "55mm 58mm" In T2 Spec Lines, Ford Mustang GT 5.0L (2018-), change Notes as follows: "53mm 55mm"
Applies to Ford Mustang GT on this page: Michael Lavigne, Mikhail Butenko
fasterT2 BMW E92M3 08-14 weight drops 50 lbs to 3425, intake restrictor reduces 3mm to 77mm.
In T2 Spec Lines, BMW E92M3 (08-14), change as follows: Weight: "3475 3425" Notes: "80mm 77mm"
T2 Request
#30406 from John Paul Jose · Rule change · TB 21-07 (2021-07 Fastrack)
fasterT2 BMW M2 CS Cup 2020- weight increases from 3625 to 3600 lbs; mandatory Purple power stick added.
In T2 Spec Lines, BMW M2 CS Cup 2020-, change Weight as follows: "3625 00" In T2 Spec Lines, BMW M2 CS Cup 2020-, add to Notes the following: "It is mandatory to run the "Purple" power stick #TBD. 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.)"
Applies to BMW M2CS Cup on this page: Charlie Peter, Nathan Martin, Aaron Kaplan
fasterT2 Dodge Viper SRT-10 loses 50 lbs to 3550; throttle restrictor hole shrinks from 43mm to 41mm.
In T2 Spec Lines, Dodge Viper SRT-10 incl. coupe (03-06), change as follows: Weight (lbs): "3600 3550" Notes: "Throttle restrictor between each throttle body and plenum is mandatory: .060” flat steel plate with one 43 41mm hole."
Applies to Dodge Viper SRT-10 on this page: Scotty B White
T2 Reply to letter 29879 T2-T4 Grill Openings
#31486 from Andrew Aquilante · Rule change · TB 22-01 (2022-01 Fastrack)
fasterT2-T4 clarified: grill opening area may increase max 16 sq in for radiator cooling only, retaining factory mesh shape.
In T2-T4, GCR section 9.1.9.2.D.8.a.8, clarify as follows: "Exclusively for For the sole purpose of engine radiator cooling purposes, it is permitted to remove the outermost non-metallic webbed false grill openings that are closed in mesh style factory grill openings. Maximum allowable increase in grill opening area is 16 square inches. The modified grill opening mesh shape and contour must be retained as delivered from the manufacturer. This allowance does not permit modification to dedicated brake-only or intercooler-only grill openings. (Note - It is the competitor’s responsibility to be able to verify that 16 or fewer square inches have been removed.)"
neutralT2, T3, T4 radiator and coolant hoses may be replaced with aftermarket options; coolant temp sensor modification permitted.
In GCR, Section 9.1.9.2.D.3.a., add the following: "3. Radiator and coolant hoses may be replaced with aftermarket options. Modification for coolant temp sensors is permitted."
neutralT2, T3, T4 clarify that spec lines listing permitted or allowed parts are alternatives to category rules, not replacements.
In GCR, Section 9.1.9.2.C.4., add the following" "b. Spec lines may include modifications that are "permitted" or "allowed". This means that they are a permitted as alternatives to the allowances written into the category rules. For example "Koni shock #xxxxxxx allowed" implies that you could use the Koni option or any option that complies with the category rules."
neutralT2 Spec Mustang model designation changed to Ford Spec Mustang.
In T2 Spec Lines, Spec Mustang, change Model as follows: "Ford Spec Mustang"
T2 BMW Z4M Adjustment
#31885 from Patrick Womack · Rule change · TB 22-02 (2022-02 Fastrack)
fasterT2 BMW Z4M 06-08 weight reduced from 3150 to 3100 lbs.
In T2 Spec Lines, BMW Z4M (06-08), change Weight as follows: "3150 3100"
T2 Reply to letter #31486/29879 T2-T4 Grill openings
#31935 from Andrew Aquilante · Rule change · TB 22-03 (2022-03 Fastrack)
fasterT2-T4 grill openings may remove non-metallic webbed false sections; 16 square inch limit removed.
In T2-T4, GCR Section 9.1.9.2.D.8.a.8., change as follows: "For the sole purpose of engine radiator cooling, it is permitted to remove the outermost non-metallic webbed false grill openings that are closed in mesh style factory grill openings. Maximum allowable increase in grill opening area is 16 square inches. The modified grill opening mesh shape and contour must be retained as delivered from the manufacturer. This allowance does not permit modification to dedicated brake-only or intercooler-only grill openings. Note - It is the competitor’s responsibility to be able to verify that 16 or fewer square inches have been removed."
T2 C6 Restrictor Help
#31995 from Brian LaCroix · Rule change · TB 22-03 (2022-03 Fastrack)
fasterT2 Chevrolet Corvette C6 LS2 restrictor increases from 56mm to 58mm.
In T2 Spec Lines, Chevrolet Corvette C6 Coupe / Grand Sport (05-13), change Notes as follows: "LS2: 56 58mm"
Applies to Chevrolet Corvette C6 on this page: James Candelaria, Brian LaCroix
T2 Request to Allow the Use of Aftermarket ECU's in Touring
slowerT2-T4 cars model year 2018+ may use non-OEM ECU with 75 lb weight penalty via spec line adjustment.
In T2-T4, GCR Section 9.1.9.2., Introduction, add 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. Note-Model year cars 2018 or later may request a spec line adjustment which permits use of a non-oem ECU with a 75# weight addition.”
T2 BMW M2 CS Cup 2020- Exhaust
#32243 from Charlie Peter · Rule change · TB 22-04 (2022-04 Fastrack)
unclearBMW M2 CS Cup 2020- now permits specific exhaust part #18302459928 and hot country package cooling parts.
In T2 Spec Lines, BMW M2 CS Cup 2020-, change Notes as follows: "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 mandatory to run the “Purple” power stick part #8324089. 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.)"
Applies to BMW M2CS Cup on this page: Charlie Peter, Nathan Martin, Aaron Kaplan
neutral2022+ Cadillac CT4-V Blackwing classified in T2 at 3564cc, 3800 lbs, 18×10/11 wheels, 295 MT tires.
In T2 Spec Lines, classify Cadillac CT4-V Blackwing (2022+) as follows:
A specification table follows in the original; it is not shown here.
Applies to Cadillac CT4-V Blackwing on this page: John Heinricy
T2 Request Alternate Front & Rear Strut/Shock Top Hats
#32452 from Raymond Blethen · Rule change · TB 22-05 (2022-04 Fastrack)
neutralT2-T4 Touring cars with alternative springs may use performance top hats with spherical bearings on shocks and struts.
In TOURING (T2-T4) CATEGORY, GCR Section 9.1.9.2.D.5.b.2, add the following: "f. Cars with an alternative spring allowance are permitted to use performance alternative top hats on shocks and struts. These top hats are permitted to utilize spherical bearings."
fasterT2 BMW M235iR/M240iR: 240iR/Evo package now permitted without 50 lb penalty; Evo package clarified to 75 lbs.
In T2 Spec Lines, BMW M235iR (-2016), change Notes as follows: "Must conform to WorldChallenge VTS 2/25/2016 rev.2. 240iR/Evo package allowed with 50 lb penalty permitted. 240iR permitted. Must run DOT tires. EVO package permitted +75 lbs."
Applies to BMW M235iR on this page: Gamaliel Aguilar-Gamez
fasterT2 BMW E92 M3 (08-14) permitted to use Fall Line Suspension arms from G8X/F8x/E9x M3, E9x M3/E82 1M.
In T2 Spec Lines, BMW E92 M3 (08-14), add to Notes as follows: "Fall Line Suspension arms permitted- G8X/F8x/E9x M3, E9x M3/E82 1M, E9XM3?E82 1M."
Applies to BMW E92 M3 on this page: James Leithauser, Aaron Kaplan, Daniel Spirek
Runoffs 2022 → Runoffs 2023 2022-09-24 to 2023-09-23
T2 Heavy Cars
#33345 from Scotty B White · Rule change · TB 22-12 (2022-12 Fastrack)
slowerT2 Dodge Viper SRT-10 wheel size 18x11 rear, weight to 3675 lbs, throttle restrictor hole 44mm convertible or 42mm hardtop.
In T2 Spec Lines, Dodge Viper SRT-10 incl. coupe (03-06), change as follows: Max Wheel Size: "18 x 10 11 (F) 19 x 13 (R)" Weight: "3550 3675" Notes: "If a hardtop is used, it shall be the detachable Autoform hardtop (latches shall be replaced with positive fasteners), convertible top shall be removed. Throttle restrictor between each throttle body and plenum is mandatory: .060” flat steel plate with one 41mm 44mm hole (In convertible configuration) or one 42mm hole (hardtop configuration). A .250” thick (max) steel or aluminum spacer is permitted between the throttle body and the restrictor to provide clearance for the throttle butterfly. This spacer shall replicate the dimensions of the stock throttle body flange (i.e. throttle bore, bolt pattern, idle-air bypass port
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dimensions, etc.) Throttle body spacer bore(s) shall be no larger than the stock throttle body bore diameter at the gasket surface, and shall not be radiused in any way. Throttle restrictor may include idle air control and/or PCV orifice. The following parts are allowed:, Mopar performance fan delete kit #P5153260, Phoenix SRT10 electric fan kit #PPI123321, Mopar swing oil pickup kit # 4510174, Trans. mount # P4510179, Dodge Motorsports T1 suspension kit part # P5153251 Hypercoil springs #188A0750 (F) and 188A0800 (R) are allowed. B&M Shifter (PN45055) is permitted. Oil pan part #5037735AC, oil pick up part #5038022AB, oil pick up tube part #5037312AE are allowed. Maximum front camber of -3.0 w/ Dodge Motorsports T1 suspension package allowed."
Applies to Dodge Viper SRT-10 on this page: Scotty B White
T2 BMW M235iR/M240iR Aftermarket 2WNR Shocks Allowed - Touring 2
fasterT2 BMW M235iR weight reduced 50 lbs to 3350, aftermarket shocks now allowed.
In T2 Spec Lines, BMW M235iR (-2016), change as follows: Weight: "3400 3350" Notes: "DOT approved tires required. All other components must be as homologated from BMW Motorsports. No other changes or Touring rule allowances permitted unless specified below. Must conform to World Challenge VTS 2/25/2016 rev.2. 240iR/Evo package permitted. 240iR permitted. Must run DOT tires. T2 compliant shocks permitted. Alternative tune permitted."
Applies to BMW M235iR on this page: Gamaliel Aguilar-Gamez
T2 Touring (T2-T5) Category
#33617 from Club Racing Board · Rule change · TB 23-01 (2023-01 Fastrack)
neutralT5 class added as regional-only; T5 tyres maximum width 225, minimum aspect ratio 45.
In GCR, CARS AND EQUIPMENT, section 9.1.9. TOURING CATEGORY CLASSES: add the following: "Touring 5 (T5)" In GCR, Section 9.1.9.2. Touring (T2-T5) Category, change as follows: "Touring car eligibility: Cars are eligible for the class they are listed with a specification line and with the specific allowances permitted. In addition T2-T5 cars may race one class up in touring classes above their specification line class as long as they are a legal T2-T4 5 car and conform to their specification line allowances as classified. T5 is a Regional only class." In GCR, Section 9.1.9.2.D.1.i.5., change as follows: "T2-T4 5 only:"
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In GCR, Section 9.1.9.2.D.7.b., add as follows: "T5 has a maximum tire size of 225/45. T5 has a maximum tire width of 225 and a minimum aspect ratio of 45."
T2 ENO 9.1.9.2.D.1.e.1.a.
#33651 from Club Racing Board · Rule change · TB 23-01 (2023-01 Fastrack)
neutralT2-T5 Touring front and rear suspension maximum negative camber changed to 3.5 degrees.
In GCR Touring (T2-T5) Category Specifications, Section 9.1.9.2.D.1.e.1.a, change as follows: "A maximum of 3.5 degrees of negative ch amber is allowed on front and rear suspensions."
T2 C5 Corvette Swaybars
#33269 from Carl Fung · Rule change · TB 23-02 (2023-02 Fastrack)
In T2 Spec Lines, Chevrolet Corvette C-5 Incl. Fxd Cpe (98-04) Z06 (hardtop) (01-04), add to Notes as follows: "GM Motorsports T1 suspension pkg. (Part # 1248 → 0062) is permitted. SpecCorvette SCT-1 swaybars permitted."
Applies to Chevrolet Corvette C5 Z06 on this page: Kurt Rezzetano, Bill Collins, Christopher Qualls, David Sanders, Charlie Abell, John LoGiudice, Joe Aquilante
neutralT2/T3 Mustang GT 5.0L and V6 (11-14) may remove upper grille fog lights, replace with mesh or screen.
In T2 Spec Lines, Ford Mustang GT 5.0L (11-14), add to Notes the following: "Upper grille fog lights may be removed and replaced with mesh or screen." In T2 Spec Lines, Ford Mustang V6 (11-14), add to Notes the following: "Upper grille fog lights may be removed and replaced with mesh or screen." In T3 Spec Lines, Ford Mustang V6 (11-14), add to Notes the following: "Upper grille fog lights may be removed and replaced with mesh or screen."
Applies to Ford Mustang GT on this page: Kurt Rezzetano, Michael Lavigne, Mikhail Butenko, Alan Phillips
T2 Honda Civic Type R Tire Size Increase
#33672 from Marty Grand · Rule change · TB 23-03 (2023-03 Fastrack)
fasterT2 Honda Civic Type-R tire size increases from 275 to 295.
In T2 Spec Lines, Honda Civic Type-R (2017-), change Tire Size as follows: "275 295"
Applies to Honda Civic Type-R on this page: Marty Grand
T2 Allowance of any nonmetallic bushing material in T2
neutralT2 upper and lower control arm bushings can now use polyurethane, delrin, or alternate synthetic materials.
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."
T2 Allow Adjustable stabilizer bar links
#33861 from John Heinricy · Rule change · TB 23-04 (2023-04 Fastrack)
neutralT2 Cadillac CT4-V Blackwing now permits adjustable sway bar end links.
In T2 Spec Lines, Cadillac CT4-V Blackwing (2022-), add to Notes as follows: "Adjustable sway bar end links permitted."
Applies to Cadillac CT4-V Blackwing on this page: John Heinricy
T2 C5 Z06 Straight Line Speed
#33575 from Charlie Abell · Rule change · TB 23-05 (2023-05 Fastrack)
slowerT2 Chevrolet Corvette C5 Z06 restrictor increases from 53mm to 56mm; 58mm option removed.
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 C5 Z06 on this page: Kurt Rezzetano, Bill Collins, Christopher Qualls, David Sanders, Charlie Abell, John LoGiudice, Joe Aquilante
T2 2009 Porsche Cayman Classing Request
#34147 from Lisa Hunsicker · Rule change · TB 23-06 (2023-06 Fastrack)
neutralT2 Porsche Cayman S model year range extended from 06-08 to 06-09.
In T2 Spec Lines, Porsche Cayman S (06-08), change year as follows: "Porsche Cayman S (06-08) (06-09)"
Applies to Porsche Carrera S on this page: Mark Boden, Joe Boden
Applies to Porsche Cayman GTS on this page: Quirt Smith
T2 370Z Obsolete Parts & NISMO Alternatives to SPL Parts
neutralT2 Nissan 370Z allows NISMO suspension alternatives to SPL parts; rear toe arms removed from permitted list.
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.
Applies to Nissan 370Z Nismo on this page: Richard Kulach
T2 Rules Clarification for Mazda RX8 Spec Line
#34395 from Colin Koehler · Rule change · TB 23-08 (2023-08 Fastrack)
neutralT3 Mazda RX-8 removes transmission/final drive pairing requirement; T4 removes same requirement, adds Mazdaspeed radiator and coil spring kit.
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:
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(F) Mazda Motorsports- 0000- 04-9700-08 or Eibach- 0800.250.0700 (R) Mazda Motorsports- 0000-04-9400-07 or Eibach 0700.250.0400, and helper 0000-04-9926 allowed. Alternate sway bars allowed max 32mm (f) 19mm (r)."
T2 rule book corrections
#34437 from Chi Ho · Rule change · TB 23-08 (2023-08 Fastrack)
fasterT3 BMW 320i (14-15) gains aftermarket intercooler permission; T4 loses it.
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."
T2 Corvette LS2 Restrictor Plate Adjustment
#34456 from Brian LaCroix · Rule change · TB 23-08 (2023-05 Fastrack)
fasterT2 Chevrolet Corvette C6 LS2 restrictor plate increases from 58mm to 60mm flat plate.
In T2 Spec Lines, Chevrolet Corvette C6 Coupe / Grand Sport (05-13), change Notes as follows: "LS2: 58mm 60mm flat plate restrictor is required."
Applies to Chevrolet Corvette C6 on this page: James Candelaria, Brian LaCroix
T2 Ride Height Correction for the T3 Solstice.
#34615 from Joe Aquilante · Rule change · TB 23-08 (2023-08 Fastrack)
neutralT3 Pontiac Solstice GXP minimum ride height set to 3 inches.
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."
T2 Blacking Cadillac Fuel Capacity
#34624 from John Heinricy · Rule change · TB 23-08 (2023-05 Fastrack)
neutralT2 Cadillac CT4-V Blackwing permitted to use Radium fuel surge tank behind fireproof bulkhead.
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."
Applies to Cadillac CT4-V Blackwing on this page: John Heinricy
What the rules allowed changed as listed; this does not say what any particular car ran.