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BoP Lab / Michelin Raceway Road Atlanta

FV + SRF + SMSE at Michelin Raceway Road Atlanta

Class · click a class to switch, + to compare alongside
Events all

SRF has no laps in the events chosen. It ran at U.S. 2016: add that event.

SMSE has no laps in the events chosen. It ran at SARRC 2020: add that event.

One lap is left out as timing errors (far too short to be a lap of this track). The rest of those sessions, sectors included, is used.

PosCarDriverClass#LapTheoreticalQualRace5-lap stintConsistencyTrapS1S2S3
1Protoform P2Andrew WhitstonFV721:43.556 C-R21:43.2581:44.524 C-Q11:43.556 C-R21:44.315 C-R2+1.645 C-R2102.2 C-R238.495 C-R237.974 C-Q126.789 C-R1
2Vorscha GB4Mitchell FergusonFV521:43.727 C-R21:43.4531:45.537 C-Q11:43.727 C-R21:44.953 C-R2+1.929 C-R2107.9 D-R138.733 C-R237.804 C-R226.916 D-R1
3Protoform P2Mike LawrenceFV361:44.011 C-R21:43.4481:44.684 C-Q11:44.011 C-R21:45.285 C-R2+2.269 C-R2105.7 A-R138.779 C-R237.547 C-R227.122 C-Q1
4Protoform P2Steve WhitstonFV181:44.543 C-R21:43.6741:47.631 C-Q11:44.543 C-R21:44.979 C-R2+1.230 C-R2100.8 C-R238.681 C-R237.994 C-R226.999 C-R1
5VortechStevan DavisFV801:44.874 C-R11:44.0951:45.108 C-Q11:44.874 C-R11:45.215 C-R1+0.743 C-R1107.1 D-R139.028 E-R137.982 D-R127.085 C-R1
6Agitator 016Donnie IsleyFV301:45.061 A-Q11:44.7091:45.061 A-Q11:45.145 C-R21:46.709 C-R1+2.026 C-R1107.1 A-R139.108 C-R238.266 A-Q127.335 D-R1
7Volkswagen ProtoformTrevor CarmodyFV71:46.487 D-R11:45.5961:48.091 D-Q21:46.487 D-R11:47.414 D-R1+1.986 D-R1107.7 D-R140.081 D-R138.178 D-R127.337 D-R1
8VortechAnthony Henderson 2+ carsFV171:46.846 A-Q21:46.7421:46.846 A-Q21:48.094 A-R11:48.311 A-R1+1.076 A-R1105.3 A-Q140.017 A-Q239.235 A-Q227.490 A-Q2
9Vorscha GB3Smith Jackson RagsdaleFV21:47.324 C-R21:46.7151:49.424 E-Q11:47.324 C-R21:47.590 C-R2+0.596 C-R2102.2 E-R239.639 C-R239.124 C-R127.952 E-Q1
10Mysterian M2Michael Nitz 2+ carsFV941:47.478 C-R21:46.7131:47.545 C-Q11:47.478 C-R21:48.309 C-R2+2.205 C-R299.5 C-R240.302 C-Q138.742 C-R127.669 C-R1
11Caracal DLaurin BrallierFV761:47.515 E-Q11:47.2931:47.515 E-Q11:47.844 E-R11:48.590 E-R1+1.609 E-R1102.4 E-R140.183 E-Q139.107 E-R128.003 E-Q1
12JK Technologies XP-1Jonathan WeisheitFV611:47.543 D-R11:46.6681:52.465 D-Q21:47.543 D-R11:49.024 D-R1+1.337 D-R1107.2 D-R140.399 D-R138.760 D-R127.509 D-R1
13Vorscha GB4Jeffrey FilipkowskiFV201:47.706 E-P1:46.9721:48.062 E-Q11:48.668 E-R11:51.646 E-R1+4.044 E-R1106.0 E-R139.833 E-P39.494 E-P27.645 E-Q1
14Protoform P2Ron WhitstonFV51:48.017 C-R21:47.5891:48.590 C-Q11:48.017 C-R21:48.705 C-R2+1.264 C-R2100.0 C-R140.887 C-R239.284 C-R227.418 C-R1
15Protoform P3Rich Richardson 2+ carsFV641:48.141 C-R21:47.5821:52.689 C-Q11:48.141 C-R21:48.473 C-R2+1.364 C-R298.5 C-R141.004 C-R238.798 C-R227.780 C-R2
16Caracal DRussell FredericksFV231:48.336 D-R11:47.5811:49.406 D-Q21:48.336 D-R11:51.704 D-R1+3.129 D-R1108.5 D-R140.769 D-R139.011 D-R127.801 D-Q2
17Mysterian M3Mark Richardson 2+ carsFV201:49.107 C-R21:48.6581:50.256 C-Q11:49.107 C-R21:49.886 C-R2+1.935 C-R2100.3 C-R141.213 C-R239.424 C-R128.021 C-R2
18Protoform P2Michael Nitz 2+ carsFV941:49.464 A-Q21:48.5381:49.464 A-Q21:49.714 A-R11:49.998 A-R1+1.110 A-R1103.8 A-Q141.062 A-R139.681 A-R127.795 A-R1
19Lazer 1Rich Richardson 2+ carsFV991:49.498 A-R11:49.0601:50.080 A-Q21:49.498 A-R11:50.116 A-R1+1.776 A-R1102.5 A-Q141.168 A-R139.823 A-R128.069 A-R1
20Caracal C FVAnthony Henderson 2+ carsFV171:49.520 E-Q11:49.1181:49.520 E-Q11:49.974 E-R11:50.341 E-R1+1.265 E-R198.6 E-Q140.303 E-Q140.120 E-Q128.695 E-R1
21Mysterian M2Jacob SchillingFV851:50.348 A-R11:49.7651:51.018 A-Q11:50.348 A-R11:51.279 A-R1+2.498 A-R1103.8 A-R141.717 A-R139.978 A-Q128.070 A-R1
22VortechMark Richardson 2+ carsFV881:50.913 A-R11:50.3201:51.390 A-Q21:50.913 A-R11:51.900 A-R1+2.084 A-R1103.0 A-R141.990 A-R139.924 A-R128.406 A-R1
23CrusaderWilliam Duke RagsdaleFV83, 031:51.031 C-R11:49.3051:56.401 E-Q11:51.031 C-R11:51.237 C-R2+0.464 C-R296.6 C-R240.655 C-R239.992 C-R228.658 C-R2
24Caracel CJohn McaleerFV21:51.291 A-R11:50.3121:52.321 A-Q21:51.291 A-R11:52.552 A-R1+2.364 A-R1104.6 A-R141.585 A-R140.766 A-R127.961 A-R1
25Citation CW1Barry SheltonFV961:52.837 A-R11:52.1621:53.780 A-Q21:52.837 A-R11:53.328 A-R1+0.621 A-R1100.4 A-Q242.282 A-R141.029 A-R128.851 A-R1
26Agitator 015James BrookshireFV191:53.713 E-R11:52.9671:54.645 E-Q11:53.713 E-R11:56.863 E-R1+4.771 E-R197.8 E-R242.273 E-R141.296 E-R229.398 E-R2
About this data
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.

By car

CarClassDriversLapQualRaceTrapS1S2S3
Protoform P2FV51:43.556Andrew Whitston1:44.524Andrew Whitston1:43.556Andrew Whitston105.7Mike Lawrence38.495Andrew Whitston37.547Mike Lawrence26.789Andrew Whitston
Vorscha GB4FV21:43.727Mitchell Ferguson1:45.537Mitchell Ferguson1:43.727Mitchell Ferguson107.9Mitchell Ferguson38.733Mitchell Ferguson37.804Mitchell Ferguson26.916Mitchell Ferguson
VortechFV31:44.874Stevan Davis1:45.108Stevan Davis1:44.874Stevan Davis107.1Stevan Davis39.028Stevan Davis37.982Stevan Davis27.085Stevan Davis
Agitator 016FV11:45.061Donnie Isley1:45.061Donnie Isley1:45.145Donnie Isley107.1Donnie Isley39.108Donnie Isley38.266Donnie Isley27.335Donnie Isley
Volkswagen ProtoformFV11:46.487Trevor Carmody1:48.091Trevor Carmody1:46.487Trevor Carmody107.7Trevor Carmody40.081Trevor Carmody38.178Trevor Carmody27.337Trevor Carmody
Vorscha GB3FV11:47.324Smith Jackson Ragsdale1:49.424Smith Jackson Ragsdale1:47.324Smith Jackson Ragsdale102.2Smith Jackson Ragsdale39.639Smith Jackson Ragsdale39.124Smith Jackson Ragsdale27.952Smith Jackson Ragsdale
Mysterian M2FV21:47.478Michael Nitz1:47.545Michael Nitz1:47.478Michael Nitz103.8Jacob Schilling40.302Michael Nitz38.742Michael Nitz27.669Michael Nitz
Caracal DFV31:47.515Laurin Brallier1:47.515Laurin Brallier1:47.844Laurin Brallier108.5Russell Fredericks40.183Laurin Brallier39.011Russell Fredericks27.801Russell Fredericks
JK Technologies XP-1FV11:47.543Jonathan Weisheit1:52.465Jonathan Weisheit1:47.543Jonathan Weisheit107.2Jonathan Weisheit40.399Jonathan Weisheit38.760Jonathan Weisheit27.509Jonathan Weisheit
Protoform P3FV11:48.141Rich Richardson1:52.689Rich Richardson1:48.141Rich Richardson98.5Rich Richardson41.004Rich Richardson38.798Rich Richardson27.780Rich Richardson
Mysterian M3FV11:49.107Mark Richardson1:50.256Mark Richardson1:49.107Mark Richardson100.3Mark Richardson41.213Mark Richardson39.424Mark Richardson28.021Mark Richardson
Lazer 1FV11:49.498Rich Richardson1:50.080Rich Richardson1:49.498Rich Richardson102.5Rich Richardson41.168Rich Richardson39.823Rich Richardson28.069Rich Richardson
CrusaderFV11:51.031William Duke Ragsdale1:56.401William Duke Ragsdale1:51.031William Duke Ragsdale96.6William Duke Ragsdale40.655William Duke Ragsdale39.992William Duke Ragsdale28.658William Duke Ragsdale
Caracel CFV11:51.291John Mcaleer1:52.321John Mcaleer1:51.291John Mcaleer104.6John Mcaleer41.585John Mcaleer40.766John Mcaleer27.961John Mcaleer
Citation CW1FV11:52.837Barry Shelton1:53.780Barry Shelton1:52.837Barry Shelton100.4Barry Shelton42.282Barry Shelton41.029Barry Shelton28.851Barry Shelton
Agitator 015FV11:53.713James Brookshire1:54.645James Brookshire1:53.713James Brookshire97.8James Brookshire42.273James Brookshire41.296James Brookshire29.398James Brookshire
About this data
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

Super Tour Mar 2022 → Super Tour Mar 2023 2022-03-12 to 2023-03-10

SRF SRF Tire Rule Update

#32614 from Robey Clark · Rule change · TB 22-06 (2022-06 Fastrack)

wordingSRF tire rule wording clarified: tires must be run as delivered.
As printed in Fastrack

In SRF, GCR section 9.1.8.D.1.X.f, change as follows:
"Tires: must be run as delivered."

SRF Brake, seal, and air filter clarifications

#32670 from Club Racing Board · Rule change · TB 22-06 (2022-06 Fastrack)

fasterSRF brake rotor minimum thickness reduced from 13.25 mm to 12.20 mm; seals and air filter specs clarified.
As printed in Fastrack

In SRF, GCR section 9.1.8.D.1.X.g, change as follows:
"Brakes: Hawk Blue 9012 pads P/N 801993 must be used. Wilwood vented rotor P/N 800065 shall be used as delivered with no
machining of any kind. Minimum thickness 13.25 12.20mm (0.522 0.481"). The 1985 Renault Alliance solid front rotor (Reference:
Bendix PRT1318 or Centrix 121.11004) may be used on front, rear, or both axles, but each axle must be paired to the same type
rotor. Rubber caliper bushings may be replaced with bronze bushings P/N 1196185 or P/N 1196185."
In SRF, GCR section 9.1.8.D.2.H, change as follows:
"No performance M modifications of any kind.
SCCA Enterprises’ seals shall be intact.
(2) on cam cover, (2) on the oil pan, (1) on the each cam shaft. Automatic Drivetrain Violation if removed."
In SRF, GCR section 9.1.8.D.2.H.23, change as follows:
"Air Filter: P/N WM301020 or K&N RC-9160"

SRF Update SRF Brake Rule

#33469 from Robey Clark · Rule change · TB 23-01 (2023-01 Fastrack)

faster · engineSRF removes 1985 Renault Alliance solid front rotor option; restrictor sizes decrease 1mm for newer Kawasaki and multi-brand engines; minimum weights increase to 1100 lbs.
As printed in Fastrack

In SRF, GCR section 9.1.8.D.X.g, change as follows:
"Brakes: Hawk Blue 9012 pads P/N 801993 must be used. Wilwood vented rotor P/N 800065 shall be used as delivered with no
machining of any kind. Minimum thickness 12.20mm (0.481"). The 1985 Renault Alliance solid front rotor (Reference: Bendix
PRT1318 or Centrix 121.11004) may be used on front, rear, or both axles, but each axle must be paired to the same type
rotor. The Renault Alliance solid front rotors may not be used. Rubber caliper bushings may be replaced with bronze bushings P/N
1196185 or P/N 1196185. Original caliper pistons may be replaced with vented caliper piston P/N 1196184; no other
modification allowed. Wilwood caliper with bracket universal fit P/N 800038 may be used as delivered with no modification of
any kind. Wilwood knock back spring (2.63 lbs.) P/N 800045 may be used as delivered with no modification of any kind;
maximum of one spring per caliper."
P2 Engine Table
Spec
Line Engine Series

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

Super Tour Mar 2023 → Super Tour Mar 2024 2023-03-10 to 2024-03-08

SRF Update SRF Front W2 Rain Tire Part Number

#34118 from Robey Clark · Rule change · TB 23-05 (2023-05 Fastrack)

tyres & wheelsSRF front W2 rain tyre Hoosier part number changes from 46100 to 46101 P185/65R13.
As printed in Fastrack

In SRF, GCR section 9.1.8.D.1.X.f, change as follows:
"Front – Hoosier P/N 46100 1 P185/65R13 W2"

SRF Hoosier SRF Wet Front Tire Rule Update

#34189 from Robey Clark · Rule change · TB 23-06 (2023-06 Fastrack)

tyres & wheelsSRF wet front tyre changes to Hoosier P/N 46100 P185/60R13 H20 or W2 with 2.5" ground clearance.
As printed in Fastrack

In SRF, GCR section 9.1.8.D.1.X.f, change as follows:
"Wet:
Front – Hoosier P/N 46100 P185/60R13 H20 or W2
Rear – Hoosier P/N 46105 P205/60R13 H20 or W2
Ground clearance is 2.5" with driver as raced when P185/60R13 (H20 or W2) tires are used."

SRF SRF Radiator Rule Update

#34805 from Robey Clark · Rule change · TB 23-10 (2023-10 Fastrack)

addedSRF radiator options expanded: Enterprises P/N 480465 with baffle 480464, 480466, or Automotive 1R698 and CU698 allowed if cross-reference equivalent.
As printed in Fastrack

In SRF, GCR section 9.1.8.D.1.V.j, change as follows:
"Radiator - Enterprises new style P/N 480465 (requires baffle P/N 480464) or P/N 480466 can be used. P/N 480466, may can be
replaced with Automotive P/N 1R698, CU698 or equivalent OEM manufacturer justified by one cross-reference chart equivalent,
as long as the size, shape, and material are the same as the original P/N. The capacity, core thickness, etc., cannot be changed
even if allowed under the above. The competitor is responsible for providing this documentation of the cross-reference P/N."

FV FV Wheel Bearing Clarification

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

wordingFV front wheel bearings wording clarified; specification unchanged.
As printed in Fastrack

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

SRF Update SRF Rain / Brake Rule

#34706 from Robey Clark · Rule change · TB 23-09 (2023-09 Fastrack)

otherSRF rain/brake light must be Super Bright LEDs Inc. P/N PT-STRB-R24; secondary filament must connect to rain light switch.
As printed in Fastrack

In SRF, GCR section 9.1.8.D.1.W.l, change as follows:
"A Super Bright LEDs Inc. rain / brake light comprised of a single standard trailer oval lamp, 2-1/4 inches x 6-1/2 inches, with
incandescent or LED illumination, P/N PT-STRB-R24, is required in the original roll hoop mounting location. This rule supersedes
GCR section 9.3.32.B.2 effective 1/1/2024 through 12/31/2024. No changes may be made to the original 3-pin connector on the
wiring harness. The secondary filament of the brake light assembly shall must be connected to a switch enabling its use as a rain
light."

SRF Update SRF Brake Light Rule v1

#34853 from Robey Clark · Rule change · TB 23-10 (2023-10 Fastrack)

otherSRF brake light must be Super Bright LEDs Inc. P/N PT-STRB-R24, with SCCA Enterprises P/N 180427A pigtail and strobing rain light kit.
As printed in Fastrack

In SRF, GCR section 9.1.8.D.1.W.l, change as follows:
"A Super Bright LEDs Inc. P/N PT-STRB-R24 (SCCA Enterprises P/N 180427A) rain / brake light, P/N PT-STRB-R24, is required in the
original roll hoop mounting location. This rule supersedes GCR section 9.3.32.B.2 effective 1/1/2024 through 12/31/2024. No
changes may be made to the original 3-pin connector on the wiring harness. An SCCA Enterprises P/N 1190503 Strobing Brake
Light Pigtail is required. The secondary filament of the brake light assembly must be connected to a switch enabling its use as
a strobing rain light. A Strobing Brake Light Kit P/N 1168003 is available, which includes the brake light and pigtail."

SRF SRF / SRF3 Rule Updates

#35268 from Robey Clark · Rule change · TB 24-01 (2024-01 Fastrack)

suspension & brakesSRF adds mandatory front brake ducts 12–36 inches, throttle pedal heel-toe extension, braided stainless flex lines, camber limit 5.0 degrees, radiator opening height 3½ ± ½ inches, rear shift cable clamp P/N WM302007A.
As printed in Fastrack

In SRF, GCR section 9.1.8.D.1.H, add the following:
"NO MODIFICATIONS ALLOWED. Front brake ducts are required, attached to the openings in the lower radiator baffles, any
flexible 4" duct material allowed, installed length minimum 12" maximum 36" in length. Must be securely fastened, Bracket Part
# P/N 800368 can be used. Shall Must serve no other purpose. An extension may be welded to the side of the throttle pedal to
improve heel-and-toe braking. Master cylinder casting / location must be used as delivered on P/N 180110 Pedal Mounting
support. Aeroquip style -3 braided stainless flex lines only, must attach to all brake components without modification. Brake pad
"anti-rattle" clips must be removed."
In SRF, GCR section 9.1.8.D.1.V, add the following:
"ii. Rear SADEV shift cable aluminum two-piece style clamp may be used. The P/N WM302007A clamp must serve no other
purpose."
In SRF, GCR section 9.1.8.D.1.X.k, add the following:
"Negative camber shall must not exceed 5.0 degrees absolute maximum front and rear."
In SRF, GCR section 9.1.8.D.1.AA.b, add the following:
"2. Height of the radiator opening vertical surface 3 1/2“ +/- 1/2"."
P2 Engine Table B.1
2008 and older Stock
Suzuki, Yamaha,
Honda, BMW
38.5mm
P2 Engine Table B.2 Not required
P2 Engine Table B.3 38.5mm
Modified
Engine
950 lbs.
1005cc max
P2 Engine Table B.1
2008 and older 37mm
P2 Engine Table B.2 Not required
P2 Engine Table B.3 39mm
Stock Engine
1050 lbs.

Super Tour Mar 2024 → Super Tour Mar 2026 2024-03-08 to 2026-03-06

SRF Update Rain Tire Rule and Hoosier Decal Placement

#36436 from Robey Clark · Rule change · TB 24-08 (2024-08 Fastrack)

tyres & wheelsSRF wet tyres: front P185/60R13 H20 or W2 and rear P205/60R13 H20 or W2 removed; front P185/65R13 W2 and rear P205/60R13 W2 now required. Hoosier decal placement specified.
As printed in Fastrack

In SRF, GCR section 9.1.8.D.1.X.f, change as follows:
"Wet:
Front – Hoosier P/N 46100 P185/60R13 H20 or W2
Rear – Hoosier P/N 46105 P205/60R13 H20 or W2
Ground clearance is 2.5” with driver as raced when P185/60R13 (H20 or W2) tires are used.
OR
Front – Hoosier P/N 46101 P185/65R13 W2
Rear – Hoosier P/N 46105 P205/60R13 W2
1. It is forbidden to regroove tires.
2. The use of tire warmers or cooling methods other than natural air convection or conduction is prohibited. The penalty for
violation will be the loss of qualifying times and/or the disqualification of race results.
3. Hoosier SRF/SRF3 Decal Placement:
Four (4) "Hoosier" decals are required in the following locations: Two (2) 11" X 3" decals on the vertical plane of the front nose to
the outside of the cooling opening on each side and two (2) 18" X 5" decals, one on each side of the engine cover or above the
rear wheel openings on the vertical plane. Hoosier decals are available, free of charge, from all Hoosier tire distributors including
SCCA Enterprises."

SRF Protest Fee Clarification

#36540 from SCCA Staff · Rule change · TB 24-09 (2024-09 Fastrack)

wordingFE and SRF protest fee rules redirected to GCR section 8.3.1.D for fees and procedure.
As printed in Fastrack

In FE, GCR section 9.1.1.I.2.U.b.3, change as follows:
"Protest Fee: Regional -$25.00, National -$50.00. See GCR section 8.3.1.D for fees and payment procedure."
In SRF, GCR section 9.1.8.D.1.U.b.3, change as follows:
"Protest Fee: Regional -$25.00, National -$50.00. See GCR section 8.3.1.D for fees and payment procedure. Item 1 will be done by
the CSR or other shop that is equipped for this type of work and will be paid directly."

SRF Update to Letter 36619 with new Hoosier Contingency Decal Info

#36624 from Robey Clark · Rule change · TB 24-09 (2024-09 Fastrack)

wordingSRF Hoosier contingency decal requirement reduced from four decals in specific locations to three decals with simplified placement.
As printed in Fastrack

In SRF, GCR section 9.1.8.D.1.X.f.3, change as follows:
"Four (4) "Hoosier" decals are required in the following locations: Two (2) 11" X 3" decals on the vertical plane of the front nose
to the outside of the cooling opening on each side and two (2) 18" X 5" decals, one on each side of the engine cover or above the
rear wheel openings on the vertical plane. Hoosier decals are available, free of charge, from all Hoosier tire distributors including
SCCA Enterprises Per Hoosier's contingency program, three (3) decals are required to qualify for contingency awards. One (1)
decal must be located on each side of the car and one (1) decal must be visible on the front."

SRF Update SRF3 Air Filter Rule

#36681 from Robey Clark · Rule change · TB 24-10 (2024-10 Fastrack)

removedSRF3 air filter rule removes K&N RC-9160 option, specifies Weems P/N WM301020 only.
As printed in Fastrack

In SRF, GCR section 9.1.8.D.2.H.23, change as follows:
"Air Filter: P/N WM301020 or K&N RC-9160"

SRF Update SRF Brake Rotor Thickness

#36687 from Robey Clark · Rule change · TB 24-10 (2024-10 Fastrack)

suspension & brakesSRF Wilwood vented rotor minimum thickness increases to 13.25mm, 0.522 inches.
As printed in Fastrack

In SRF, GCR section 9.1.8.D.1.X.g, change as follows:
"Brakes: Hawk Blue 9012 pads P/N 801993 must be used. Wilwood vented rotor P/N 800065 shall must be used as delivered with
no machining of any kind. Minimum thickness 12.20mm (0.481”) 13.25mm (0.522”)."

SRF Hoosier Tire Decal Placement

#36739 from Robey Clark · Rule change · TB 24-10 (2024-10 Fastrack)

wordingSRF3 Hoosier decal placement changed from four logos on nose and tail to three logos on sides and center front.
As printed in Fastrack

In SRF, GCR section 9.1.8.D.2.B, change as follows:
"Mandatory identification: "SRF3" near the side car numbers. "Hoosier" logo (4) on both sides front lower outer corners of the
nose and each side of the tail. Three (3) "Hoosier" logos, one (1) on each side of the car and one (1) on the center front of the car."

FV Disc Brakes

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

wordingFV ferrous rotor must not be cross-drilled; pad cleaning grooves limit unchanged at three per side.
As printed in Fastrack

In FV, GCR section 9.1.1.C.4.D, change as follows:
"Any ferrous alloy, unvented rotor may be used, but must have a maximum diameter of 11.75 in. and a minimum thickness of
0.20 in. The otherwise smooth rotor may not be cross-drilled and may have a maximum of three pad cleaning grooves per side."

SRF Driver Safety & Comfort

#37966 from Robey Clark · Rule change · TB 25-04 (2025-04 Fastrack)

addedSRF drivers with disabilities may modify seat and controls for safety and comfort with SCCA approval, noted in logbook, for that driver only.
As printed in Fastrack

In SRF, GCR section 9.1.8.D.1.D, add the following:
"f. Driver Safety and Comfort modifications to seat and controls for drivers with disabilities may be made only by approval. These
modifications must be reported to SCCA Enterprises and noted in the car logbook. The modifications are approved only for the
noted driver with disabilities. If the car is used by or sold to another driver, it must be returned to the previous standard
configuration."

SRF Update SADEV transmission specs

#37992 from Club Racing Board · Rule change · TB 25-04 (2025-04 Fastrack)

wordingSRF SADEV-SRF3 6-speed sequential transmission: effective date clarified to 1 April 2025 onward.
As printed in Fastrack

In SRF, GCR section 9.1.8.D.2.K, change as follows:
"OR
SADEV-SRF3 6-Speed Sequential (beginning from Oct. 4, 2021 onward):
1st 12-36 3.0000 : 1
2nd 15-31 2.0667 : 1
3rd 18-28 1.5556 : 1
4th 22-28 1.2727 : 1
5th 24-26 1.0833 : 1
6th 25-23 0.9200 : 1
Final Drive Ratio: 15-48 3.20"

SRF Add HD Oil Cooler

#38979 from Robey Clark · Rule change · TB 25-10 (2025-10 Fastrack)

added · engineSRF3 adds HD Oil Cooler P/N G1148500 option alongside standard P/N G480503, no fan permitted.
As printed in Fastrack

In SRF, GCR section 9.1.8.D.1.V.ff, change as follows:
"SRF3 Oil Cooler, P/N G480503 or HD Oil Cooler P/N G1148500 may be used as mounted per the GEN3 Assembly Manual. No fan
permitted for SRF. HD Oil Cooler kit P/N G1148500 may be used as mounted per the GEN3 Conversion Manual."

SRF SRF3 Spark Plugs

#39899 from Robey Clark · Rule change · TB 26-03 (2026-03 Fastrack)

engineSRF3 spark plugs limited to NGK LTR7IX-11 P/N G301041 only; washers and sealing rings prohibited.
As printed in Fastrack

In SRF, GCR section 9.1.8.D.2.H.18, add the following:
"Spark Plugs: P/N G301041 ONLY NGK LTR7IX-11 / Washers or sealing rings are not allowed for any purpose."

What the rules allowed changed as listed; this does not say what any particular car ran.

Sectors

Sectors are numbered in lap order from start/finish, whatever each event's timing called them; the loop names are SCCA timing's.