AS Crate Motor Part Numbers
#32944 from Sam Daniels · Rule change · TB 23-08 (2023-08 Fastrack)
In AS, GCR Section 9.1.6.F.2., change as follows:
"GM Performance parts CT400 P/N-1937 → 0604 or 1937 → 0604 engine assembly for GM produced vehicles."
BoP Lab / Virginia International Raceway
Sectors are not comparable across all of these events. Sector times and the theoretical lap use North Carolina 2025, Spring Sprints 2026 only. Runoffs 2022 (sectors cut at different points), Runoffs 2023 (sectors cut at different points) count towards whole-lap times and trap speed only.
Official results win over the timing feed: the live timing recorded a 2:13.671 for Kelly Lubash in Runoffs 2023 AS Race, but the official results credit 2:13.928 as the car's fastest, so the timing system did not count that lap (usually a lap under a full-course yellow or a timing-loop fault); it is left out here too.
| Pos | Car | Driver | Class | # | Best lap | Best theoretical lap | Best qual lap | Best race lap | Best trap speed | Best S1 | Best S2 | Best S3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Ford Mustang GT | Kurt Rezzetano | AS | 37 | 2:02.162 D-Q3 | 2:02.162 D-Q3 | 2:04.669 D-R | 146.8 D-P1 | ||||
| 2 | Ford Mustang | Gregory Eaton | AS | 21 | 2:02.313 D-Q3 | 2:02.313 | 2:02.313 D-Q3 | 2:04.120 C-R | 148.7 D-Q1, D-R | 45.526 B-R1 | 46.464 B-R2 | 33.708 B-Q1 |
| 3 | Chevrolet Camaro | Daniel Richardson | AS | 22 | 2:02.663 D-Q1 | 2:02.663 D-Q1 | 2:04.295 C-R | 150.9 D-P2 | ||||
| 4 | Dodge Challenger | Clark Cambern | AS | 78 | 2:02.861 D-Q3 | 2:02.861 D-Q3 | 2:04.387 C-R | 147.1 D-Q1 | ||||
| 5 | Ford Mustang GT | James Jost | AS | 14 | 2:04.363 D-P2 | 2:04.512 D-Q1 | 150.9 D-Q1 | |||||
| 6 | Cadillac CTS-V | Thomas West | AS | 56 | 2:05.247 D-Q2 | 2:05.247 | 2:05.247 D-Q2 | 2:06.175 C-R | 149.7 B-R2 | 46.387 B-R2 | 46.589 B-R2 | 35.085 B-Q1 |
| 7 | Ford Mustang | Michael Kamalian | AS | 199, 99 | 2:05.353 A-Q1 | 2:05.353 | 2:05.353 A-Q1 | 2:06.141 A-R1 | 145.5 A-Q1 | 45.123 A-Q1 | 46.023 A-Q1 | 34.207 A-Q1 |
| 8 | Ford Mustang | Andrew McDermid | AS | 24 | 2:06.149 D-Q3 | 2:06.149 D-Q3 | 2:07.495 D-R | 144.7 D-Q1 | ||||
| 9 | Pontiac Firebird | Amy Aquilante | AS | 51 | 2:07.146 C-R | 2:07.146 C-R | 147.7 C-R | |||||
| 10 | Pontiac Firebird | John Heinricy | AS | 55 | 2:08.081 D-Q1 | 2:08.081 D-Q1 | 141.5 D-Q2 | |||||
| 11 | Ford Mustang | Mikhail Butenko | AS | 47 | 2:08.341 D-Q2 | 2:08.341 D-Q2 | 2:09.949 D-R | 132.9 D-R | ||||
| 12 | Pontiac Firebird | Kyle Jones | AS | 5 | 2:08.740 C-R | 2:08.740 C-R | 144.6 C-R | |||||
| 13 | Pontiac Firebird | Beth Aquilante | AS | 58 | 2:08.770 C-R | 2:08.770 C-R | 146.6 C-R | |||||
| 14 | Chevrolet Camaro | Sam Daniels | AS | 11 | 2:12.417 C-R | 2:12.417 C-R | 137.0 C-R | |||||
| 15 | Chevrolet Camaro | Phillip Waters | AS | 77 | 2:12.735 D-Q1 | 2:12.735 D-Q1 | 2:15.565 D-R | 145.0 D-Q1 | ||||
| 16 | Chevrolet Camaro | Kyle Gilbert | AS | 15 | 2:13.047 D-Q2 | 2:13.047 D-Q2 | 2:14.872 D-R | 133.4 D-Q3 | ||||
| 17 | Chevrolet Camaro | Kelly Lubash | AS | 3 | 2:13.766 D-Q2 | 2:13.766 D-Q2 | 2:16.765 D-R | 141.7 D-Q1, D-R | ||||
| 18 | Chevrolet Camaro | Andy Schniedermeyer | AS | 117 | 2:15.903 D-Q2 | 2:15.903 D-Q2 | 2:16.989 D-R | 118.7 D-Q2 |
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; 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 ">" (with ">115%" beside the driver) and left out of the colour scale. Click a column to sort, a row to highlight it. Theoretical lap is the sum of the best sectors, whichever laps they came from, and never slower than the best lap (where a car's fastest laps were recorded without sector times, its best lap is used). The 115% mark is about the car's best lap only: a car whose best lap is within 115% of the fastest in its class is never marked. Greyed sectors with no theoretical lap mean the sector times on file do not add up to a believable lap. Letters refer to the events above; Q is qualifying, R a race.
Sectors are numbered in lap order from start/finish, whatever each event's timing called them; the loop names are SCCA timing's.
| Car | Class | Drivers | Best lap | Best qual | Best race | Best trap | Best S1 | Best S2 | Best S3 |
|---|---|---|---|---|---|---|---|---|---|
| Ford Mustang | AS | 6 | 2:02.162Kurt Rezzetano | 2:02.162Kurt Rezzetano | 2:04.120Gregory Eaton | 150.9James Jost | 45.123Michael Kamalian | 46.023Michael Kamalian | 33.708Gregory Eaton |
| Ford Mustang GT | AS | 2 | 2:02.162Kurt Rezzetano | 2:02.162Kurt Rezzetano | 2:04.669Kurt Rezzetano | 150.9James Jost | |||
| Ford Mustang | AS | 4 | 2:02.313Gregory Eaton | 2:02.313Gregory Eaton | 2:04.120Gregory Eaton | 148.7Gregory Eaton | 45.123Michael Kamalian | 46.023Michael Kamalian | 33.708Gregory Eaton |
| Chevrolet Camaro | AS | 6 | 2:02.663Daniel Richardson | 2:02.663Daniel Richardson | 2:04.295Daniel Richardson | 150.9Daniel Richardson | |||
| Dodge Challenger | AS | 1 | 2:02.861Clark Cambern | 2:02.861Clark Cambern | 2:04.387Clark Cambern | 147.1Clark Cambern | |||
| Cadillac CTS-V | AS | 1 | 2:05.247Thomas West | 2:05.247Thomas West | 2:06.175Thomas West | 149.7Thomas West | 46.387Thomas West | 46.589Thomas West | 35.085Thomas West |
| Pontiac Firebird | AS | 4 | 2:07.146Amy Aquilante | 2:08.081John Heinricy | 2:07.146Amy Aquilante | 147.7Amy Aquilante |
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.
#32944 from Sam Daniels · Rule change · TB 23-08 (2023-08 Fastrack)
In AS, GCR Section 9.1.6.F.2., change as follows:
"GM Performance parts CT400 P/N-1937 → 0604 or 1937 → 0604 engine assembly for GM produced vehicles."
#33007 from Michael Kamalian · Rule change · TB 23-08 (2023-08 Fastrack)
In AS Spec Lines, Ford Mustang GT 5.0l (15-17) Restricted Preparation, change Notes as follows:
"Max. Wheel Size: Dia.18.0 19.0 inches."
Applies to Ford Mustang on this page: Kurt Rezzetano, James Jost
#33352 from Clark Cambern · Rule change · TB 23-08 (2023-08 Fastrack)
In AS SPEC Lines, Dodge Challenger (08-20) Restricted Preparation 5.7L, 6.1L, or 6.4L V8 (Iron block, Aluminum heads), 2
valves/cylinder, change Notes as follows:
"SPC-66045 Alternate front upper control arms are permitted."
#33353 from Clark Cambern · Rule change · TB 23-08 (2023-08 Fastrack)
In AS SPEC Lines, Dodge Challenger (08-20) Restricted Preparation 5.7L, 6.1L, or 6.4L V8 (Iron block, Aluminum heads), 2
valves/cylinder, change Notes as follows:
"Stock brakes or alternate Dodge brakes (Part numbers: front caliper (0517 → 5106 (R) and 0517 → 5107 (L); rear caliper (R1542564 (R)
and R1542565 (L))) may be used with the brake rotor sizes listed in this specification line. Alternate brackets may be used to
facilitate updated/backdated components."
#33659 from Brandon Vivian · Rule change · TB 24-03 (2024-03 Fastrack)
In AS Spec Lines, classify Chevrolet Camaro, Pontiac Firebird (70-81) Full Prep as follows:
AS Wheelbase Gear Ratios
Std. (or Alt.)
Brakes
(Max)
(in/mm)
Weight (lbs) Notes:
A specification table follows in the original; it is not shown here.
#34194 from Clark Cambern · Rule change · TB 24-03 (2024-03 Fastrack)
In AS Spec Lines, add to Notes as follows:
Cadillac CTS-V (04-07): “Fuel cells must be located within 24 inches of the standard tank. The 24 inch measurement is taken
from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with installation of a safety fuel cell.”
Chevrolet/Pontiac Camaro & Firebird (93-02): “Fuel cells must be located within 24 inches of the standard tank. The 24 inch
measurement is taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with
installation of a safety fuel cell.”
Chevrolet/Pontiac Camaro & Firebird (93-02): “Fuel cells must be located within 24 inches of the standard tank. The 24
inch measurement is taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with
installation of a safety fuel cell.”
Chevrolet Camaro SS (V8) (10-15): “Fuel cells must be located within 24 inches of the standard tank. The 24 inch
measurement is taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with
installation of a safety fuel cell.”
Chevrolet Camaro (10-15): “Fuel cells must be located within 24 inches of the standard tank. The 24 inch measurement is
taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with installation of a
safety fuel cell.”
Dodge Challenger (08-20): “Fuel cells must be located within 24 inches of the standard tank. The 24 inch measurement is
taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with installation of a
safety fuel cell.”
Ford Mustang GT (05-14): “Fuel cells must be located within 24 inches of the standard tank. The 24 inch measurement is
taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with installation of a
safety fuel cell.”
Ford Mustang Coupe GT (05-14): “Fuel cells must be located within 24 inches of the standard tank. The 24 inch
measurement is taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with
installation of a safety fuel cell.”
Ford Mustang GT 5.0l (15-17): “Fuel cells must be located within 24 inches of the standard tank. The 24 inch measurement
is taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with installation of a
safety fuel cell.”
Ford Mustang GT (05-14): “Fuel cells must be located within 24 inches of the standard tank. The 24 inch measurement is
taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with installation of a
safety fuel cell.”
#35448 from Daniel Richardson · Rule change · TB 24-03 (2024-03 Fastrack)
In AS Spec Lines, classify Chevrolet Camaro (16-) Full Prep as follows:
AS
Wheelbase Gear Ratios
Std. (or Alt.)
Brakes
(Max)
(in/mm)
Weight (lbs) Notes:
Chevrolet
Camaro (16-)
Full Prep
110.6 3.42, 2.28,
A specification table follows in the original; it is not shown here.
Applies to Chevrolet Camaro on this page: Daniel Richardson, Sam Daniels, Phillip Waters, Kyle Gilbert, Kelly Lubash, Andy Schniedermeyer
#35713 from American Sedan Committee · Rule change · TB 24-03 (2024-03 Fastrack)
In AS Spec Lines, classify Ford Mustang GT (05-14) with Restricted prep Engine as follows:
AS
Wheelbase Gear Ratios Std.
A specification table follows in the original; it is not shown here.
#35682 from Tom Aquilante · Rule change · TB 24-04 (2024-04 Fastrack)
In AS Spec Lines, Chevrolet/Pontiac Camaro & Firebird (93-02), add to Notes the following:
"For the LS1connecting rods Callies p/n CSC6100DS6A2AH, Scat rods p/n 2-1CR6100-944, GM performance rods p/n 12649190."
In AS Spec Lines, Pontiac GTO (04-06), add to Notes the following:
"For the LS1connecting rods Callies p/n CSC6100DS6A2AH, Scat rods p/n 2-1CR6100-944, GM performance rods p/n 12649190."
Applies to Chevrolet Camaro on this page: Daniel Richardson, Sam Daniels, Phillip Waters, Kyle Gilbert, Kelly Lubash, Andy Schniedermeyer
#35824 from American Sedan Committee · Rule change · TB 24-04 (2024-04 Fastrack)
In AS Spec Lines, Cadillac CTS-V (04-07), add to Notes the following:
"11" wide wheels can be used until 3/1/25."
In AS Spec Lines, Chevrolet Camaro SS (V8) (10-15), add to Notes the following:
"11" wide wheels can be used until 3/1/25."
In AS Spec Lines, Dodge Challenger (08-20), add to Notes the following:
"11" wide wheels can be used until 3/1/25."
In AS Spec Lines, Ford Mustang GT 5.0l (15-17), add to Notes the following:
"11" wide wheels can be used until 3/1/25."
In AS Spec Lines, Pontiac GTO (04-06), add to Notes the following:
"11" wide wheels can be used until 3/1/25."
Applies to Cadillac CTS-V on this page: Thomas West
Applies to Chevrolet Camaro on this page: Daniel Richardson, Sam Daniels, Phillip Waters, Kyle Gilbert, Kelly Lubash, Andy Schniedermeyer
Applies to Dodge Challenger on this page: Clark Cambern
Applies to Ford Mustang on this page: Kurt Rezzetano, James Jost, Gregory Eaton, Michael Kamalian, Andrew McDermid, Mikhail Butenko
#35733 from American Sedan Committee · Rule change · TB 24-05 (2024-05 Fastrack)
In AS Spec Lines, classify Chevrolet Camaro 1LE (2016-) as follows:
AS Wheelbase Gear Ratios Std. (or Alt.)
Brakes
(Max)
(in/mm)
Weight (lbs.) Notes:
Chevrolet
Camaro, 1LE
(2016-)
110.6 2.66,1.78,1.30,0.74,.5 (F)
A specification table follows in the original; it is not shown here.
Applies to Chevrolet Camaro on this page: Daniel Richardson, Sam Daniels, Phillip Waters, Kyle Gilbert, Kelly Lubash, Andy Schniedermeyer
#35825 from Desi Colon · Rule change · TB 24-05 (2024-05 Fastrack)
In AS Spec Lines, classify Chevrolet/Pontiac Camaro & Firebird (82-92) 5.7L V-8 LS1 (Aluminum Block, Aluminum Heads) 2 valves
per cylinder, as follows:
AS Wheelbase Gear Ratios Std.
A specification table follows in the original; it is not shown here.
#35891 from American Sedan Committee · Rule change · TB 24-05 (2024-05 Fastrack)
In AS Spec Lines, Chevrolet/Pontiac Camaro & Firebird (82-92), add to Notes the following:
"Flo Tek Head part #102-500 are permitted."
In AS Spec Lines, Chevrolet/Pontiac Camaro & Firebird (93-02), add to Notes the following:
"Flo Tek Head part #102-500 are permitted."
In AS Spec Lines, Chevrolet Camaro (10-15), add to Notes the following:
"Flo Tek Head part #102-500 are permitted."
In AS Spec Lines, Ford Mustang Incl. Cobra & Cobra R (79-93) and Mercury Capri (79-86), add to Notes the following:
"Flo Tek Part # 203-500 are permitted."
In AS Spec Lines, Ford Mustang Including Cobra 94-04, add to Notes the following:
"Flo Tek Part # 203-500 are permitted."
In AS Spec Lines, Ford Mustang GT (05-14), add to Notes the following:
"Flo Tek Part # 203-500 are permitted."
Applies to Chevrolet Camaro on this page: Daniel Richardson, Sam Daniels, Phillip Waters, Kyle Gilbert, Kelly Lubash, Andy Schniedermeyer
Applies to Ford Mustang on this page: Kurt Rezzetano, James Jost, Gregory Eaton, Michael Kamalian, Andrew McDermid, Mikhail Butenko
#35764 from Michael Kamalian · Rule change · TB 24-06 (2024-06 Fastrack)
AS Spec Lines, classify Ford Mustang GT 5.0L (2018-) as follows:
AS Wheelbase Gear Ratios
A specification table follows in the original; it is not shown here.
#36662 from American Sedan Committee · Rule change · TB 24-09 (2024-09 Fastrack)
In AS Spec Lines, Ford Mustang GT (05-14) with Restricted Prep Engine, add to Notes as follows:
"Alternate transmission Ratios 3.66, 2.43, 1.69, 1.32, 1.00, .68.”
In AS Spec Lines, Ford Mustang GT 5.0L (2018-), add to Notes as follows:
"Alternate transmission Ratios 3.24, 2.10, 1.42, 1.00, 0.81, .062."
Applies to Ford Mustang on this page: Kurt Rezzetano, James Jost, Gregory Eaton, Michael Kamalian, Andrew McDermid, Mikhail Butenko
#36177 from Gregory Eaton · Rule change · TB 25-01 (2025-01 Fastrack)
In AS Spec Lines, add to Notes as follows:
Ford mustang (GT 05-14): "Gen 1- 67mm Gen 2-64mm"
Ford mustang (GT 05-14): "Gen 1- 67mm"
Ford mustang (GT 15-17): "Gen 1- 67mm"
Ford mustang (GT 94-04): "Gen 1- 67mm Gen 2-64mm"
Ford mustang cobra & Cobra R Mercury Capri (79-93) (79-86): "Gen 1- 67mm Gen 2-64mm"
#36867 from Michael Kamalian · Rule change · TB 25-01 (2025-01 Fastrack)
In AS Spec Lines, Ford Mustang Coupe GT (05-14) Restricted Prep., change Notes as follows:
"The 4.6L engine assembly has a weight reduction of 300 lbs. 5.0L/6spd engine/trans: track pack front and rear spoiler allowed."
In AS Spec Lines, Ford Mustang Coupe GT (05-14) with Restricted Prep. engine, change Notes as follows:
"Max. Wheel Size: Dia.18.0 inches. Stock brakes or alternate Ford 14” Brembo Brake (Ford Racing Kit #M-2300-S) and full prep
brake package may be used. Either engine may be used. 1st Generation 5.0l Coyote 11-14 62mm FPR 2nd Generation 5.0lCoyote 15-17 61mm FPR Cold Air Intake allowed Charge Motion Control Valves can be blocked off and removed for firewall
clearance Allow Cold Air Intake Tremec Magnum transmission may be used P/N- TUKT16901. Full Prep Transmissions rule
package may also be used. Max compression ratio, 11.2:1 track pack front and rear spoiler allowed. Alternate transmission
Ratios 3.66, 2.43, 1.69, 1.32, 1.00, .68."
In AS Spec Lines, Ford Mustang GT 5.0l (15-17) Restricted Preparation, change Notes as follows:
"Max. Wheel Size: Dia. 18.0 inches. Stock brakes or alternate Ford Brembo Brake caliper (Ford Racing Kit #M-2300-S) may be
used. 61mm flat plate restrictor required. Fuel cells must be located within 24 inches of the standard tank. The 24 inchmeasurement is taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with installationof a safety fuel cell. 11” wide wheels can be used until 3/1/25. Performance pack front and rear spoiler, body kit allowed."
In AS Spec Lines, Ford Mustang GT 5.0L (2018-), change Notes as follows:
"Package Brembo front BBK and 380mm rotors permitted (Ford PN M-2300-V) at no weight penalty. 60mm flat plate restrictorrequired. 2014 Mustang GT exhaust manifolds permitted. Ford Racing oil pan #M-6675-M50BR permitted. Alternatetransmission Ratios 3.24, 2.10, 1.42, 1.00, 0.81, .062. Performance pack front and rear spoiler, body kit allowed."
Applies to Ford Mustang on this page: Kurt Rezzetano, James Jost, Gregory Eaton, Michael Kamalian, Andrew McDermid, Mikhail Butenko
#37131 from Timothy White · Rule change · TB 25-01 (2025-01 Fastrack)
In AS Spec Lines, change Gear Ratios as follows:
Cadillac CTS-V (04-07):
"2.97, 2.07, 1.43,1.00, 0.84,0.56 or 3.01, 2.07, 1.43, 1.0, .84, .57 or 2.20, 1.64,1.28,1.00 or 2.88, 1.91, 1.33, 1.00"
Chevrolet Camaro, Pontiac Firebird (70-81), Full Prep:
"3.42, 2.28, 1.45, 1.00 or 2.95, 1.94, 1.34, 1.00, 0.73 or 3.35, 1.93, 1.29, 1.00, 0.61, or 2.20, 1.64,1.28,1.00 or 2.87,1.89,1.28,1.00"
Chevrolet Camaro, Pontiac Firebird (70-81), Restricted Prep.:
"3.42, 2.28, 1.45, 1.00 or 2.95, 1.94, 1.34, 1.00, 0.73 or 3.35, 1.93, 1.29, 1.00, 0.61, or 2.20, 1.64,1.28,1.00 or 2.87,1.89,1.28,1.00"
Chevrolet/Pontiac Camaro & Firebird (82-92) Full Prep:
"3.42, 2.28, 1.45, 1.00 or 2.95, 1.94, 1.34, 1.00, 0.73 or 3.35, 1.93, 1.29, 1.00, 0.61 or 2.20, 1.64,1.28,1.00 or 2.88, 1.91, 1.33,
1.00"
Chevrolet/Pontiac Camaro & Firebird (93-02) Full Prep:
"3.42, 2.28, 1.45,1.00 or 2.95, 1.94,1.34, 1.00,0.73or 3.35, 1.93,1.29, 1.00,0. 61 or 2.88, 1.91, 1.33, 1.00 or 3.27, 1.98, 1.34, 1.00,
0.68 or 2.20,1.64,1.28,1.00 or 2.87,1.89,1.28,1.00,.81"
Chevrolet/Pontiac Camaro & Firebird (93-02) Restricted prep:
"2.97, 2.07, 1.43, 1.00, 0.80, 0.62 or 3.36, 2.07, 1.35, 1.00, .80, .62 or 2.66, 1.78, 1.30, 1.00, 0.74, 0.50 or 2.88, 1.91, 1.33, 1.00 or
2.20, 1.64,1.28,1.00"
Chevrolet Camaro SS (V8) (10-15) Restricted Prep:
"3.01, 2.07, 1.43, 1.0, .84, .57 or 2.88, 1.91, 1.33, 1.00 or 2.20, 1.64,1.28,1.00"
Chevrolet Camaro (10-15) Full Prep:
"3.42, 2.28, 1.45,1.00 or 2.95, 1.94,1.34, 1.00, 0.73or 3.35, 1.93,1.29, 1.00,0. 61 or 2.88, 1.91, 1.33, 1.00 or 3.27, 1.98, 1.34, 1.00,
0.68 or 2.20, 1.64,1.28,1.00 or 2.87,1.89,1.28,1.00,.81"
Chevrolet Camaro (16-) Full Prep:
"3.42, 2.28, 1.45,1.00 or 2.95, 1.94,1.34, 1.00, 0.73or 3.35, 1.93,1.29, 1.00,0. 61 or 2.88, 1.91, 1.33, 1.00 or 3.27, 1.98, 1.34, 1.00,
0.68 or 2.20, 1.64,1.28,1.00 or 2.87,1.89,1.28,1.00,.81"
Chevrolet Camaro, 1LE (16-):
"2.66,1.78,1.30, 0.74,.50 or 2.88, 1.91, 1.33, 1.00 or 2.20, 1.64,1.28,1.00 or 2.88, 1.91, 1.33, 1.00 or 2.20, 1.64,1.28,1.00"
Dodge Challenger (08-20) Restricted Preparation 5.7L, 6.1L, or 6.4L V8 (Iron block, Aluminum heads), 2 valves/cylinder:
"2.97, 2.1, 1.46, 1.00, 0.74, 0.50 or 2.26, 1.58, 1.19, 1.00, 0.77, 0.63 or 2.88, 1.91, 1.33, 1.00 or 2.20, 1.64,1.28,1.00"
Ford Mustang Incl. Cobra & Cobra R (79-93) and Mercury Capri (79-86) Full Prep:
"3.07, 1.72, 1.00, 0.70 or 2.95, 1.94, 1.34, 1.00, 0.63 or 3.35, 1.99, 1.33, 1.00, 0.68 or 2.87 1.89 1.28 1.00 0.81"
Ford Mustang Incl. Cobra & Cobra R (79-93) and Mercury Capri (79-86) with Restricted Prep Engine:
"2.95, 1.94, 1.34,1.00, 0.63 or 3.35,1.99,1.33, 1.00, 0.69 or 2.88, 1.91, 1.33, 1.00 or 3.27,1.98, 1.34, 1.00, 0.68, 3.66, 2.43, 1.69,
1.32, 1.00, .68. or 2.87,1.89,1.28,1.00,.81"
Ford Mustang Including Cobra 94-04 Full Prep:
"3.07, 1.72, 1.00, 0.70 or 2.95, 1.94, 1.34, 1.00, 0.63 or 3.35, 1.99, 1.33, 1.00, 0.68 or 2.88, 1.91, 1.33, 1.00 or 3.27, 1.98, 1.34,
1.00, 0.68 or 2.88, 1.91, 1.33, 1.00 or 3.27, 1.98, 1.34, 1.00, 0.68 or 2.20, 1.64,1.28,1.00 or 2.87 1.89 1.28 1.00 0.81"
Ford Mustang Cobra and GT 94-95 (Restricted Prep):
"3.35, 1.99, 1.33, 1.00, 0.68 or 2.88, 1.91, 1.33, 1.00 or 2.20, 1.64,1.28,1.00"
Ford Mustang including Cobra 96-04 (Restricted Prep) 4.6L two and four valve motor:
"3.35, 1.99, 1.33, 1.00, 0.68 or 3.27, 1.98, 1.34, 1.00, 0.67 or 3.37, 1.99, 1.33, 1.00, 0.68 or 3.38, 2.00, 1.32, 1.00, 0.68 or 2.88,
1.91, 1.33, 1.00 or 2.20, 1.64,1.28,1.00"
Ford Mustang GT (05-14) Full Prep:
"3.38, 2.00, 1.32, 1.00, 0.68 or 3.66, 2.43, 1.69,1.32, 1.00, 0.65 or 2.88, 1.91, 1.33, 1.00 or 2.20, 1.64,1.28,1.00"
Ford Mustang GT 5.0l (15-17) Restricted Preparation:
"3.66, 2.43, 1.69,1.32, 1.00, .65 or 4.69, 2.98,2.14, 1.76,1.52, 1.27,1.00, 0.85, 0.68, 0.63, or 3.24, 2.10, 1.42, 1.00, 0.81, .062. or
2.88, 1.91, 1.33, 1.00 or 2.20, 1.64,1.28,1.00"
Ford Mustang GT 5.0L (2018-) Restricted Preparation:
"2.97, 2.07, 1.43, 1.00, 0.84, 0.57 or 2.88, 1.91, 1.33, 1.00 or 2.20, 1.64,1.28,1.00"
Pontiac GTO (04-06) Restricted Prep.
"2.97, 2.07, 1.43, 1.00, 0.84, 0.57 or 2.88, 1.91, 1.33, 1.00 or 2.20, 1.64,1.28,1.00"
#37208 from Gary Mathews · Rule change · TB 25-01 (2025-01 Fastrack)
In AS SPEC LINES, Cadillac CTS-V (04-07) Restricted Prep., change Notes as follows:
"Fuel cells must be located within 24 inches of the standard tank. The 24 inch measurement is taken from the perimeter of the
stock and alternative fuel cell. Fuel filler location is unrestricted with installation of a safety fuel cell. Tremec TR6060
Transmission with 3.0 1, 2.07, 1.43, 1.0, .84, .57 ratios permitted. 11” wide wheels can be used until 3/1/25. Any ECM may be
used."
In AS SPEC LINES, Chevrolet Camaro, Pontiac Firebird (70-81) Restricted Prep ., add to Notes as follows:
"Any ECM may be used."
In AS SPEC LINES, Chevrolet/Pontiac Camaro & Firebird (82-92) 5.7L V-8 LS1, add to Notes as follows:
"Any ECM may be used."
In AS SPEC LINES, Chevrolet/Pontiac Camaro & Firebird (93-02) Restricted Prep.5.7L V-8 LT1, add to Notes as follows:
"Any ECM may be used."
In AS SPEC LINES, Chevrolet/Pontiac Camaro & Firebird (93-02) Restricted Prep. 5.7L V-8 LT1; 98-02 , change Notes as follows:
"5.7L LS1:
GM Performance Parts camshaft Kit P/N-19355738 is permitted. Cylinder Bore, 99 mm; Stroke, 92 mm; Intake Valve Diameter,
50.8; Exhaust Valve Diameter, 39.4 mm; Throttle Body Bore, 75 mm; SLP Intake Lid (SLP part number 21044 (98-99) and 21045
(00-02)) is permitted.Fuel cells must be located within 24 inches of the standard tank. The 24 inch measurement is taken from the perimeter of thestock and alternative fuel cell. Fuel filler location is unrestricted with installation of a safety fuel cell.
1-3/4 headers allowed. For the LS1connecting rods Callies P/NCSC6100DS6A2AH, Scat rods P/N2-1CR6100-944, GM performance
rods P/N12649190. Any ECM may be used."
In AS SPEC LINES, Chevrolet Camaro SS (V8) (10-15) Restricted Prep., add to Notes as follows:
"Any ECM may be used."
Applies to Cadillac CTS-V on this page: Thomas West
#37902 from American Sedan Committee · Rule change · TB 25-03 (2025-03 Fastrack)
In AS Spec Lines, change Notes as follows:
Cadillac CTS-V (04-07) Restricted Prep. 6.0L V8 (Aluminum block, Aluminum heads), LS2, 2 valves/cylinder:
"Any ECM maybe used."
Chevrolet Camaro, Pontiac Firebird (70-81) Restricted Prep. 6.2L V8 (Aluminum Block, Aluminum Heads), 2 valves per cylinder:
"Any ECM maybe used."
Chevrolet/Pontiac Camaro & Firebird (82-92)s 5.7L V-8 LS1 (Aluminum Block, Aluminum Heads) 2 valves per cylinder:
"Any ECM maybe used."
Chevrolet/Pontiac Camaro & Firebird (93-02):
"Any ECM maybe used."
Chevrolet Camaro SS (V8) (10-15) Restricted Prep. 6.2L V8 (Aluminum Block, Aluminum Heads), 2 valves per cylinder:
"Any ECM maybe used."
#37502 from Pamela Richardson · Rule change · TB 25-04 (2025-04 Fastrack)
In GCR, Section 9.1.6., replace Figure 1 Value Seat Cutting Dimensions with the following:
#37693 from American Sedan Committee · Rule change · TB 25-04 (2025-04 Fastrack)
In AS Spec Lines, change/add to Notes as follows:
Cadillac CTS-V (04-07):
"Fuel cells must be located within 24 inches of the standard tank. The 24 inch measurement is taken from the perimeter of thestock and alternative fuel cell. Fuel filler location is unrestricted with installation of a safety fuel cell. Any ECM maybe used. The
Drive Shaft Shop, Axle shaft part #'s 510220/510221 permitted."
Chevrolet Camaro, Pontiac Firebird (70-81) Full Prep:
"Engine built to A/S Build Sheet specifications with the following: Head Casting #s: 14101081, 14014416 Port Volume (Max.): 081casting: 170.00 cc IN/65.00 EX; 416 Casting 168.00cc IN/60.00 EX with a 250 lb. weight reduction. Edelbrock Cylinder Head Part
#s 608979, 608879."
Chevrolet Camaro, Pontiac Firebird (70-81) Restricted Prep.:
"Any ECM maybe used."
Chevrolet/Pontiac Camaro & Firebird (82-92) Full Prep.:
"Engine built to A/S Build Sheet specifications with the following: Head Casting #s: 14101081, 14014416 Port Volume (Max.): 081cast¬ing: 170.00 cc IN/65.00 EX; 416 Casting 168.00cc IN/60.00 EX with a 250 lb weight reduction. Edelbrock Cylinder Head Part#s 608979, 608879 are permitted. For regional competition only, unmodified GM Performance cylinder head part #s 19300955,19300956 may be used with Allstar restrictor plate part# ALL26180 and 1.250 inserts part# ALL26186 installed between intakemanifold and insulator. Gaskets may be used (each gasket can be no thicker than .125 inches), one on each side of the restrictor.All intake air must pass through the inserts of the restrictor plate. Alternate gear ratio sets 2.88, 1.91, 1.33, 1.00 or 3.27, 1.98,1.34, 1.00, 0.68 are permitted. Flo Tek Head part #102-500 are permitted."
Chevrolet/Pontiac Camaro & Firebird (82-92) Restricted prep engine:
"Any ECM maybe used."
Chevrolet/Pontiac Camaro & Firebird (93-02) Full Prep:
"Engine built to A/S Build Sheet specifications with the following: Head Casting #’s: 14101081, 14014416; Port Volume (Max.):081 casting: 170.00 cc IN/65.00 EX; 416 Casting 168.00cc IN/60.00 EX with a 250 lb weight reduction. Edelbrock Cylinder HeadPart #’s 608979, 608879 are permitted. For regional competition only, unmodified GM Performance cylinder head part #s19300955, 19300956 may be used with Allstar restrictor plate part# ALL26180 and 1.250 inserts part# ALL26186 installedbetween intake manifold and insulator. Gaskets may be used (each gasket can be no thicker than .125 inches), one on each sideof the restrictor. All intake air must pass through the inserts of the restrictor plate. Alternate gear ratio sets 2.88, 1.91, 1.33, 1.00or 3.27, 1.98, 1.34, 1.00, 0.68 are permitted. Fuel cells must be located within 24 inches of the standard tank. The 24 inchmeasurement is taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted withinstallation of a safety fuel cell. Flo Tek Head part #102-500 are permitted."
Chevrolet/Pontiac Camaro & Firebird (93-02) Restricted Prep:
"Fuel cells must be located within 24 inches of the standard tank. The 24 inch measurement is taken from the perimeter of thestock and alternative fuel cell. Fuel filler location is unrestricted with installation of a safety fuel cell. Any ECM maybe used."
Chevrolet Camaro SS (V8) (10-15) Restricted Prep:
"Fuel cells must be located within 24 inches of the standard tank. The 24 inch measurement is taken from the perimeter of thestock and alternative fuel cell. Fuel filler location is unrestricted with installation of a safety fuel cell. Any ECM maybe used."
Chevrolet Camaro (10-15) Full Prep:
"Engine built to A/S Build Sheet specifications with the following: Head Casting #’s: 14101081, 14014416; Port Volume (Max.):081 casting: 170.00 cc IN/65.00 EX; 416 Casting 168.00cc IN/60.00 EX with a 200 lb weight reduction. Edelbrock Cylinder HeadPart #’s 608979, 608879 are permitted. Alternate gear ratio sets 2.88, 1.91, 1.33, 1.00 or 3.27, 1.98, 1.34, 1.00, 0.68 arepermitted. Fuel cells must be located within 24 inches of the standard tank. The 24-inch measurement is taken from theperimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with installation of a safety fuel cell. Flo TekHead part #102-500 are permitted. Fuel cells must be located within 24 inches of the standard tank. The 24 inch measurement istaken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with installation of a safety fuelcell."
Chevrolet Camaro (16-) Full Prep:
"Engine built to A/S Build Sheet specifications with the following: Head Casting #’s: 14101081, 14014416; Port Volume (Max.):081 casting: 170.00 cc IN/65.00 EX; 416 Casting 168.00cc IN/60.00 EX with a 200 lb weight reduction. Edelbrock Cylinder HeadPart #’s 608979, 608879 are permitted, Flo Tek Head part #102-500 are permitted."
Chevrolet Camaro, 1LE (16-):
"60mm flat plate restrictor required. Any ECM maybe used."
Dodge Challenger (08-20) Restricted Preparation:
"80mm flat plate restrictor is required on the 6.4L engine. Fuel cells must be located within 24 inches of the standard tank. The24 inch measurement is taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted withinstallation of a safety fuel cell."
Ford Mustang Incl. Cobra & Cobra R (79-93) and Mercury Capri (79-86) Full Prep:
"Engine built to A/S Build Sheet specifications with the following: Head Casting #s: F3ZE AA (GT40), F1ZE-AA (GT-40), F77E-AA(GT- 40P), Port Volume (Max.): 143.00cc IN/54.00cc EX (GT-40 & GT-40P) with a 250 lb weight reduction. Edelbrock CylinderHead Part #s 602579, 602479 are permitted. For regional competition only, unmodified Ford Performance cylinder head part #sM-6049-Z304DA7, M-6049-Z304D may be used with Allstar restrictor plate part# ALL26180 and 1.250 inserts part# ALL26186installed between intake manifold and insulator. Gaskets may be used (each gasket can be no thicker than .125 inches), one oneach side of the restrictor. All intake air must pass through the inserts of the restrictor plate. Alternate gear ratio sets 2.88, 1.91,1.33, 1.00 or 3.27, 1.98, 1.34, 1.00, 0.68 are permitted. Flo Tek Part # 203-500 are permitted."
Ford Mustang Incl. Cobra & Cobra R (79-93) and Mercury Capri(79-86) with Restricted Prep Engine:
"62mm flat plate restrictor is required. Fuel cells must be located within 24 inches of the standard tank. The 24 inchmeasurement is taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted withinstallation of a safety fuel cell. MMR Secondary Timing Chain Tensioner Bracket #467893 is permitted."
Ford Mustang Including Cobra 94-04 Full Prep:
"Engine built to A/S Build Sheet specifications with the following: Head Casting #s: F3ZE AA (GT40), F1ZE-AA (GT-40), F77E-AA(GT- 40P), Port Volume (Max.): 143.00cc IN/54.00cc EX (GT-40 & GT-40P) with a 250 lb weight reduction. Edelbrock CylinderHead Part #s 602579, 602479 are permitted. For regional competition only, unmodified Ford Performance cylinder head part #sM-6049-Z304DA7, M-6049-Z304D may be used with Allstar restrictor plate part# ALL26180 and 1.250 inserts part# ALL26186installed between intake manifold and insulator. Gaskets may be used (each gasket can be no thicker than .125 inches), one oneach side of the restrictor. All intake air must pass through the inserts of the restrictor plate. Alternate gear ratio sets 2.88, 1.91,1.33, 1.00 or 3.27, 1.98, 1.34, 1.00, 0.68 are permitted. Flo Tek Part # 203-500 are permitted."
Ford Mustang GT (94-04) with Restricted Prep Engine:
"MMR Secondary Timing Chain Tensioner Bracket #467893 is permitted."
Ford Mustang Cobra and GT 94-95(Restricted Prep):
"1st Generation 5.0l Coyote 11-14 62mm FPR 2nd Generation 5.0l Coyote 15-17 61mm FPR Alternate transmission Ratios 3.66,2.43, 1.69, 1.32, 1.00, .68. MMR Secondary Timing Chain Tensioner Bracket #467893 is permitted."
Ford Mustang including Cobra 96-04 (Restricted Prep):
"1st Generation 5.0l Coyote 11-14 62mm FPR 2nd Generation 5.0l Coyote 15-17 61mm FPR Alternate transmission Ratios 3.66,2.43, 1.69, 1.32, 1.00, .68. MMR Secondary Timing Chain Tensioner Bracket #467893 is permitted."
Ford Mustang Coupe GT (05-14) Restricted Prep.:
"1st Generation 5.0l Coyote 11-14 62mm FPR 2nd Generation 5.0l Coyote 15-17 61mm FPR Alternate transmission Ratios 3.66,2.43, 1.69, 1.32, 1.00, .68. MMR Secondary Timing Chain Tensioner Bracket #467893 is permitted. MT82 6 speed is permitted."
Ford Mustang GT (05-14) with Restricted Prep Engine:
"1st Generation 5.0l Coyote 11-14 62mm FPR 2nd Generation 5.0l Coyote 15-17 61mm FPR Alternate transmission Ratios 3.66,2.43, 1.69, 1.32, 1.00, .68. MMR Secondary Timing Chain Tensioner Bracket #467893 is permitted. MT82 6 speed is permitted."
Ford Mustang GT 5.0l (15-17) Restricted Preparation:
"61mm flat plate restrictor required. Fuel cells must be located within 24 inches of the standard tank. The 24 inch measurementis taken from the perimeter of the stock and alternative fuel cell. Fuel filler location is unrestricted with installation of a safetyfuel cell. MMR Secondary Timing Chain Tensioner Bracket #467893 is permitted."
Ford Mustang GT 5.0L (2018-):
"60mm flat plate restrictor required. MMR Secondary Timing Chain Tensioner Bracket #467893 is permitted."
#38055 from American Sedan Committee · Rule change · TB 25-05 (2025-05 Fastrack)
In AS Spec Lines, Ford Mustang GT 5.0l (15-17), Flat Plate Restrictor Size, change as follows:
"67mm 64mm"
#38197 from Jim Clark · Rule change · TB 25-05 (2025-05 Fastrack)
In GCR, Section 9.1.6.F., add the following to Intake Part #’s:
"17113697, 19418185, 89017230, 89017363, 89017364, and 89017365, 12561269 and 88894095"
#38234 from American Sedan Committee · Rule change · TB 25-06 (2025-06 Fastrack)
In AS Spec Lines, Ford Mustang GT (05-14) with Restricted Prep Engine, add to Gear Ratios the following:
"or 3.66, 2.43, 1.69, 1.32, 1.00, .65"
#38245 from Michael Kamalian · Rule change · TB 25-07 (2025-07 Fastrack)
In AS Spec Lines, Ford Mustang GT 5.0 (2018-), change Weight as follows:
"3600 3525"
Applies to Ford Mustang on this page: Gregory Eaton, Michael Kamalian, Andrew McDermid, Mikhail Butenko
#38640 from Alex Lozano · Rule change · TB 25-09 (2025-09 Fastrack)
In AS Spec Lines, Cadillac CTS-V (04-07) Restricted Prep., change Weight as follows:
"(Effective 11/1/2025) 3450 3400"
Applies to Cadillac CTS-V on this page: Thomas West
#39104 from Barry Borgschatz, Jr · Rule change · TB 25-12 (2025-12 Fastrack)
In AS Spec Lines, Ford Mustang GT(94-04) with Restricted Prep Engine, add to notes the following:
"Ford Motorsport #M-6250-F303 camshaft is permitted."
#39501 from American Sedan Committee · Rule change · TB 26-01 (2026-01 Fastrack)
In AS Spec Lines, change Restrictor as follows:
Ford Mustang Incl. Cobra and Cobra R (79-93) and Mercury Capri (79-86) with Restricted Prep Engine: "64 mm 61 mm"
Ford Mustang GT (94-04) with Restricted Prep Engine: "64 mm 61 mm"
Ford Mustang Coupe GT (05-14) Restricted Prep 5.0L/6 speed 4 valves per cylinder: "64 mm 61 mm"
Ford Mustang GT (05-14) with Restricted Prep Engine: "64 mm 61 mm"
Ford Mustang GT 5.0L (15-17) Restricted Preparation: "64 mm 61 mm"
#39055 from Jason Smith · Rule change · TB 26-01 (2026-01 Fastrack)
In GCR, Section 9.1.6.D.2.h.2., add the following:
"(Effective 2/1/2026) i. Weight based on full preparation chassis choice spec line for GM LM7 5.3L
Carburetor Option:
Must use the full prep 4776 holly carburetor and spacer gasket
Edelbrock Performer RPM 71187 intake manifold
MSD 6014 ignition box
(Edelbrock part # kit 7118)"
#39887 from American Sedan Committee · Rule change · TB 26-03 (2026-03 Fastrack)
This AS Spec Lines re-organization simplifies the Spec Lines for all drivers. This version gives the chassis information on what
engines can be put in their cars. It removes information that is now repeated in the ruleset and adds engine/weight combos as
well as wheelbase/tire size information. The Notes in the Spec Lines have been reviewed to remove information now listed in
the engine build sheets and retain information pertinent to the chassis selected. Where there is nothing in the notes, it is not an
error. It just means everything a driver needs is now in the main rules or the build sheets.
In AS Spec Lines, delete current Spec Line in its entirety as follows:
A specification table follows in the original; it is not shown here.
#39886 from American Sedan Committee · Rule change · TB 26-04 (2026-04 Fastrack)
In AS EFI Engine Build Sheets, add to notes as follows:
GM LS1, LS2, LS6: "Any three stage dry sump is permitted. 1-3/4” diameter headers permitted."
GM LS3, LT1: "Any three stage dry sump is permitted."
Ford 4.6L 2V and Ford 4.6L 3V: "Headers as specified in the Full Prep American Sedan rules may be used. Ford Performance
camshaft kit P/N M-6550-3V may be used."
Ford Gen 1, 2, and 3 5.0L: "MMR Secondary Timing Chain Tensioner Bracket #467893 is permitted."
Mopar 5. 7L and 6.1L: "1-3/4” diameter headers permitted."
#39933 from American Sedan Committee · Rule change · TB 26-04 (2026-04 Fastrack)
In GCR, Section 9.1.6.D.5.b.1, change as follows:
"Full Preparation All cars only:"
In AS Spec Lines, Chevrolet/Pontiac Camaro & Firebird (93-02), change as follows:
Spec Line Engine/Weight (lbs.): "(1992-1997) LT1 5.7L/3200"
Flat Plate Restrictor Size Column: "N/A"
In GCR Section 9.1.6.F., add Build Sheet as follows:
Engine GM LT1 5.7L (1992-97)
OEM engine as manufactured for General Motors 93-97 Camaro
Engine Block Casting 10125327
Cylinder Head Casting 10128374,12551561, 10207643
Port Volume
Bore 4.040in
Stroke 3.480in
Max Rod Length 5.7”
Valve Size Int.1.940” / Ex.1.60”
Cam Lift .460 Intake / .460 Exhaust
Cam Timing/Duration C/L 117deg Duration @.05 Lift
Deck Height 9.00
Compression Ratio 10.4:1
Rocker Arm Ratio 1.5:1
Intake Part #’S -
Throttle Body Bore 48mm (twin)
Restrictor Plate -
Fuel Injector Part# 17087325, 354119
Headers 1-3/4
In AS Spec Lines, GM Spec Lines (Cadillac, Chevrolet, Pontiac) change Spec Lines Engine/Weight (lbs.) as follows:
"LT1/6.2L/3600"
In GCR, Section 9.1.6.D.1.i. Oiling system, change as follows:
"6. Oil catch tanks are permitted required. All catch cans must be ventilated to the outside. All engine breathers or vapor
recirculation lines, if disconnected, shall vent to a catch tank of one (1) quart minimum capacity. Such catch tanks shall not be
mounted in the driver/passenger compartment."
In AS Spec Lines, Pontiac GTO (04- 06), change Wheelbase (in.)/Tire Column:
"109.8/275"
In AS Spec Lines, Ford Mustang GT 5.0L (15-23), Engine/Weight (lbs.) Column:
"Gen3Coyote/3600 3525"
Applies to Chevrolet Camaro on this page: Daniel Richardson, Sam Daniels, Phillip Waters, Kyle Gilbert, Kelly Lubash, Andy Schniedermeyer
What the rules allowed changed as listed; this does not say what any particular car ran.