This track has been raced on 2 configurations (Scoring Sidebar, 2.40 mi; 16 Runoffs Scoring Sidebar, 2.26 mi). Laps on different configurations are not comparable, so only events on the 2.40 mile layout are shown; switch above to see the others.
2 runs are 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): Greg Miller in Ohio Valley Great Lakes Champions 2025 Thursday (1:15.539; the car's best in any other session was 1:36.966 and the rest of the class's best all week 1:29.855); S. Sandy Satullo Iii in Great Lakes Champions 2026 Test Grp 2 Run 1 (1:29.375; the car's best in any other session was 1:36.917 and the rest of the class's best all week 1:35.311).
2 laps are left out as timing errors (far too short to be a lap of this track). The rest of those sessions, sectors included, is used.
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
S1 SF → In 1.19 mi
S2 In → I6A 0.56 mi
S3 I6A → SF 0.65 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.
Rule changes between these events
Runoffs 2016 → Ohio Valley Great Lakes Champions 2025 2016-09-19 to 2025-05-16
SRF3 SRF Brakes and Shock Rule Changes
#26629 from Robey Clark · Rule change · TB 19-05 (2019-05 Fastrack)
In GCR section 9.1.8.E.1.X.g, make changes as follows: “Brakes: Hawk Blue 9012 pads P/N 801993 or 801994 must be used. Wilwood V vented rotor P/N 800065 minimum thickness 13.25mm (0.522 in.); shall be used as delivered with no machining of any kind, P/N 800065. Minimum thickness 13.25mm (0.522”). Rubber caliper bushings may be replaced with bronze bushings P/N 1196185 or P/N 1196185(or A or B). 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
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may be used as delivered with no modification of any kind; maximum of one spring per caliper.” In GCR section 9.1.8.E.1.X.h, make changes as follows: “Shock Absorbers: Standard Koni shock, P/N 82X-2255-SPA1 with standard oil or Penske shock P/N 280396 with spec valving shall be used as a sealed assembly with no modification of any kind. If shock seals are damaged in any way, the shock must be sent to an authorized SCCA Enterprises service center for verification and resealing at the competitor’s cost. The bump rubber provided with the shock shall be used in unmodified, stock condition. No Koni or alternate bump stop is permitted to be used with the Penske shock. Shortening the Penske shock bump rubber is allowed. All shock absorbers must be sealed by Enterprises. Prior to sealing, the shock absorbers will be rebuilt by Enterprises or its authorized rebuilder. Beginning 05/01/2020, SCCA Enterprises bump rubber P/N 280407 may be used as delivered with no modification of any kind; if used, maximum of one bump rubber per shock.”
SRF3 New SRF Sectional Nose Rule Addition
#26914 from Robey Clark · Rule change · TB 19-06 (2019-06 Fastrack)
In GCR section 9.1.8.E.1.E, add the following: "NO MODIFICATIONS ALLOWED (except as specified). The SRF multi-piece nose assembly is approved for use."
SRF3 SRF Dash Windscreen Kit
#27028 from Robey Clark · Rule change · TB 19-07 (2019-07 Fastrack)
In SRF, GCR section 9.1.8.E.1.V, add the following: "ii. Dash Windscreen Kit, P/N 1180103 or P/N 180102, is allowed."
SRF3 SRF Tire Warmer Rule
#27622 from Robey Clark · Rule change · TB 19-12 (2019-12 Fastrack)
In SRF, GCR section 9.1.8.E.1.V.s delete section in its entirety as follows and re-letter as follows: "It is forbidden to regroove tires." In SRF, GCR section 9.1.8.E.1.X.f, add new sections as follows: "Tires: Dry: Front – Hoosier P/N 46340 P185/60ZR13 Rear – Hoosier P/N 46350 P205/60ZR13 SRF Wet:
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Front – Hoosier P/N 46100 P185/60R13 H20 Rear – Hoosier P/N 46105 205/60R13 H20 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."
SRF3 SRF / SRF3 Nose Weight Reduction
#27706 from Robey Clark · Rule change · TB 19-12 (2019-12 Fastrack)
In SRF, GCR section 9.1.8.E.1.E.a, change the minimum weight as follows: "Front 35 32 lbs."
SRF3 SRF / SRF3 Majors & Regional Class Updates
#27723 from Robey Clark · Rule change · TB 19-12 (2019-12 Fastrack)
In SRF, GCR section 9.1.8.E, make changes as follows: "SPEC RACER FORD 3 (SRF/SRF3)" In SRF, GCR section 9.1.8.E.1, make changes as follows: "SPEC RACER FORD 2 (SRF) Regional Only Class" In SRF, GCR section 9.1.8.E.2, make changes as follows: "SPEC RACER FORD 3 (SRF3)" In SRF, GCR section 9.1.8.E.2.A, make changes as follows: "It is the intent of the SRF3, GEN3 a Ford 1.6L conversion, to update the current 1.9L SRF drivetrain for
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class longevity. SRF and SRF3 shall compete side by side, for respective points and championships."
SRF3 SRF Rain / Brake Rule - BoD approved as follows
#34958 from Board of Directors · Rule change · TB 23-10 (2023-10 Fastrack)
In SRF, GCR section 9.1.8.D.1.W.l, change as follows as approved by BoD on 9/12/2023: "This rule supersedes GCR section 9.3.32.B.2 effective 1/1/2024 through 12/31/2024."
SRF3 SRF Bump Stop Correction
#27019 from Robey Clark · Rule change · TB 19-07 (2019-07 Fastrack)
In SRF, GCR section 9.1.8.E.1.X.h, make changes as follows: "Shock Absorbers: Penske shock P/N 280396 with spec valving shall be used as a sealed assembly with no modification of any kind. If shock seals are damaged in any way, the shock must be sent to an authorized SCCA Enterprises service center for verification and resealing at the competitor’s cost. Beginning 05/01/2020 2019, the SCCA Enterprises bump rubber stop P/N 280407 may be used as delivered with no modification of any kind; if used, maximum of one bump rubber stop per shock. Effective 05/01/2020, only the SCCA bump stop P/N 280407 may be used as
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delivered with no modification of any kind; if used, maximum of one bump stop per shock.”
SRF3 Update Bump Stop Rule
#28712 from Robey Clark · Rule change · TB 20-05 (2019-05 Fastrack)
In GCR section 9.1.8.E.1.I, change as follows: "NO MODIFICATIONS ALLOWED. Bump stop shall remain on shock but may be slit vertically to ease removal for shock adjustment. Effective May 1, 2020, only the SCCA Bump Stop P/N 280407 may be used, with no modification of any kind. Bump stops are optional. If used, only one bump stop per shock is permitted. The same brand of shock absorbers must be used in all shock absorber positions on the car." In GCR section 9.1.8.E.1.X.h, change as follows: "Shock Absorbers: Penske shock P/N 280396 with spec valving shall be used as a sealed assembly, with no modification of any kind. If shock seals are damaged in any way, the shock must be sent to an
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authorized SCCA Enterprises service center for verification and resealing at the competitor’s cost. Effective May 1, 2020, only T the SCCA b Bump s Stop P/N 280407 may be used, as delivered with no modification of any kind;. Bump stops are optional. i If used, maximum of only one bump stop per shock is permitted. Effective 05/01/2020, only the SCCA bump stop P/N 280407 may be used as delivered with no modification of any kind; if used, maximum of one bump stop per shock."
SRF3 SRF Shocks
#28791 from Robey Clark · Rule change · TB 20-06 (2020-06 Fastrack)
In GCR section 9.1.8.E.1.I, change as follows: "NO MODIFICATIONS ALLOWED. Effective May 1, 2020, only the SCCA Bump Stop P/N 280407 may be used, with no modification of any kind. Bump stops are optional. If used, only one bump stop per shock is permitted. The same brand of shock absorbers must be used in all shock absorber positions on the car. All shock absorbers must be sealed by Enterprises. Prior to sealing, the shock absorbers will be rebuilt by Enterprises or its authorized rebuilders."
SRF3 SRF Shocks, Springs and Ride Height.
#29688 from Robey Clark · Rule change · TB 20-12 (2020-12 Fastrack)
In SRF, GCR section 9.1.8.E.1.I, change as follows: "NO MODIFICATIONS ALLOWED. Only SCCA Enterprises sealed Penske shocks P/N 280396 shall be used. Only front spring P/N 280387 or P/N RO28037 shall be used. Only rear spring P/N 280390 shall be used. Effective May 1, 2020, o Only the SCCA Bump Stop P/N 280407 may be used, with no modification of any kind. Bump stops are optional. If used, only one bump stop per shock is permitted." "All shock absorbers must be sealed by SCCA Enterprises. Prior to sealing, the shock absorbers will shall be rebuilt by SCCA Enterprises or its authorized rebuilders." In SRF, GCR section 9.1.8.E.1.X, change as follows:
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"c. Rear Springs: 412-429 lbs./in Enterprises P/N 280390 or previous Enterprises supplied part (ex.RO280388 or RO280389)." "h. Shock Absorbers: Only the Penske shock P/N 280396 with spec valving shall be used as a sealed assembly, with no modification of any kind. If shock seals are damaged in any way, the shock must be sent to an authorized SCCA Enterprises service center for verification and resealing at the competitor’s cost. Effective May 1, 2020, o Only the SCCA Bump Stop P/N 280407 may be used, with no modification of any kind. Bump stops are optional. If used, only one bump stop per shock is permitted." "i. Ground Clearance: Minimum is 2.75 inches measured at the frame on the front and rear axle lines without driver, as raced."
SRF3 Mandatory identification:
#30223 from Robey Clark · Rule change · TB 21-03 (2021-03 Fastrack)
In SRF, GCR section 9.1.8.E.2.B, change as follows: "Mandatory identification: "SRF3" near the side car numbers,. Approved (2) “Ford Performance” on each sideof the engine cover plus a Ford Blue Oval on the center of the Nose & (2) “Performance Electronics” on eachside of the tail. "Hoosier" logo (4) on both sides front lower outer corners of the nose, and each side of the tail."
SRF3 SRF3 Alternator Pulley
#30684 from Robey Clark · Rule change · TB 21-06 (2021-06 Fastrack)
In SRF, GCR section 9.1.8.E.2.H.17, add the following: "Alternator Pulley: P/N G902130 or P/N G902130A. 12oz minimum weight"
SRF3 SRF Wet Tires
#30849 from Robey Clark · Rule change · TB 21-08 (2021-08 Fastrack)
In SRF, GCR section 9.1.8.E.1.X.f, make changes as follows: "Dry: Front – Hoosier P/N 46340 P185/60ZR13 SRF Rear – Hoosier P/N 46350 P205/60ZR13 SRF Wet: Front – Hoosier P/N 46100 P185/60R13 H20 Rear – Hoosier P/N 46105 P205/60R13 H20 or
#30926 from Robey Clark · Rule change · TB 21-08 (2021-08 Fastrack)
In SRF, GCR section 9.1.8.E.2.K, make changes to gear ratios as follows: "Gear Ratios: Ford/Mazda OEM 5-Speed: 1st 3.42 : 1 2nd 1.84 : 1 3rd 1.29 : 1 4th 0.97 : 1 5th 0.77 : 1
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Final Drive Ratio: 3.85 OR SADEV-SRF3 6-Speed Sequential (beginning Oct. 4, 2021):
A specification table follows in the original; it is not shown here.
SRF3 SRF Update Maintenance, Repairs and Seals
#30961 from Robey Clark · Rule change · TB 21-08 (2021-08 Fastrack)
In SRF, GCR section 9.1.8.E.1.C, make changes as follows: "If any official Enterprises seal is broken, by an Enterprises Customer Service Rep. (CSR) emergency field repair, accident, or intent, the procedures outlined under C.20., section S shall be followed. Parts with an Enterprises part number having the prefix "10" are considered to be unrestricted, providing provided their dimensions are comparable." In SRF, GCR section 9.1.8.E.1.S, make changes as follows: "SCCA Enterprises' seals on engine are required for all races must be present on driveline components in designated locations for all SCCA sanctioned events. Any competitor who runs participates in an event without all proper engine seals in the required locations shall have his engine removed and shipped to Enterprises for testing and sealing after that event must remove his
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unsealed component and it must be inspected by a Customer Service Rep. (CSR) or Enterprises. Notation shall be made in the vehicle logbook and seals checked prior to the next event. The competitor will be responsible for all cost incurred by this procedure. regardless of the findings, and If the component is found to be out of specification, the competitor is subject to penalty by the SOM if engine is found to be not as specified." "SCCA Enterprises' seals are required on all SPEC RACER FORD engines and transmissions."
SRF3 Three Updates to SRF Rules
#31523 from Robey Clark · Rule change · TB 21-12 (2021-12 Fastrack)
In SRF, GCR section 9.1.8.E.1.X.f, change as follows: "Wet: Front – Hoosier P/N 46100 P185/60R13 H20 Rear – Hoosier P/N 46105 P205/60R13 H20 Ground clearance is 2.5" with driver as raced when H20 tires are used. or Front – Hoosier P/N 46100 P185/60 65R13 W2 (effective Oct. 4, 2021) Rear – Hoosier P/N 46105 P205/60R13 W2 (effective Oct. 4, 2021)"
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In SRF, GCR section 9.1.8.E.2.H.24, change as follows: "Air Box: P/N G592230 Mandatory unmodified As delivered, except as noted under body work, Air Box floor vent must remain open and un-obstructed." In SRF, GCR section 9.1.8.E.2.H, add a new section as follows: "25. SRF3 Restrictor plate: P/N G301048 As delivered, installed between throttle body and intake manifold. Mandatory Jan. 1,
A specification table follows in the original; it is not shown here.
SRF3 SRF Tire Rule Update
#32614 from Robey Clark · Rule change · TB 22-06 (2022-06 Fastrack)
In SRF, GCR section 9.1.8.D.1.X.f, change as follows: "Tires: must be run as delivered."
SRF3 Brake, seal, and air filter clarifications
#32670 from Club Racing Board · Rule change · TB 22-06 (2022-06 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.
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(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"
SRF3 Update SRF Brake Rule
#33469 from Robey Clark · Rule change · TB 23-01 (2023-01 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;
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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.
SRF3 Update SRF Bodywork Fitment Rule
#33765 from Robey Clark · Rule change · TB 23-03 (2023-03 Fastrack)
In Spec Racer Ford, GCR section 9.1.8.D.1.E, change as follows: "j. Optional Bodywork Modification: Viewing the tail section of the car from behind, draw a vertical line at the left and right ends of the outer vents from the bottom edge of the bodywork up to a point two (2) inches below the crease at the lower edge of the vented panel. Make a vertical cut at each line. The horizontal cut is to be one (1) inch below the crease at the base of the vented panel. Leave a one (1) inch radius at each corner. Air Scoop (P/N 190000) must be installed in conjunction with rear cutout per Enterprises installation instructions. SRF3 tail sections are allowed on SRFs. For purposes of tail section to center section fitment with the GEN3 airbox, shimming is allowed at the rear of the center section. Shim material may be up to 19 mm (0.75") thick along the 1" upper square sidepod
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tube. Mounting location cannot be modified or added. Shim material must be securely attached, but must not be welded. An alternate dash panel has been approved for use in Spec Racer Fords. The dash will be furnished by Enterprises only. P/N 180100 or 180101 k. Required Bodywork Modification: A 22.5" diameter wheel arch shall be cut in each side of the tail section. Viewing the tail section from the side, draw a vertical line at the drive axle centerline. Locate the top of the wheel arch at a point measured from the bottom edge of the tail section 9.25" vertically along the centerline. The 22.5" diameter circle intersects the bottom edge of the tail section 11.1" either side of the centerline. The tail section may be reinforced in the forward and aft portions of the wheel arch. Dimension tolerance is +/- 0.75". l. An alternate dash panel has been approved for use in Spec Racer Fords. The dash will be furnished by Enterprises only. P/N 180100 or 180101."
SRF3 Update SRF Front W2 Rain Tire Part Number
#34118 from Robey Clark · Rule change · TB 23-05 (2023-05 Fastrack)
In SRF, GCR section 9.1.8.D.1.X.f, change as follows: "Front – Hoosier P/N 46100 1 P185/65R13 W2"
SRF3 Hoosier SRF Wet Front Tire Rule Update
#34189 from Robey Clark · Rule change · TB 23-06 (2023-06 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."
SRF3 SRF Radiator Rule Update
#34805 from Robey Clark · Rule change · TB 23-10 (2023-10 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."
SRF3 Update SRF Rain / Brake Rule
#34706 from Robey Clark · Rule change · TB 23-09 (2023-09 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."
SRF3 Update SRF Brake Light Rule v1
#34853 from Robey Clark · Rule change · TB 23-10 (2023-10 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."
SRF3 SRF / SRF3 Rule Updates
#35268 from Robey Clark · Rule change · TB 24-01 (2024-01 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:
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"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.
SRF3 SRF3 Alternator Pulley Update In
#36095 from Robey Clark · Rule change · TB 24-06 (2024-06 Fastrack)
SFR3, GCR section 9.1.8.D.2.H.17, change as follows: "Alternator Pulley: P/N G902130, or P/N G902130A, or P/N G902131 (six row). 12 11 oz minimum weight."
SRF3 Update Rain Tire Rule and Hoosier Decal Placement
#36436 from Robey Clark · Rule change · TB 24-08 (2024-08 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
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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."
SRF3 Update to Letter 36619 with new Hoosier Contingency Decal Info
#36624 from Robey Clark · Rule change · TB 24-09 (2024-09 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."
SRF3 Update SRF3 Air Filter Rule
#36681 from Robey Clark · Rule change · TB 24-10 (2024-10 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"
SRF3 Update SRF Brake Rotor Thickness
#36687 from Robey Clark · Rule change · TB 24-10 (2024-10 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”)."
SRF3 Hoosier Tire Decal Placement
#36739 from Robey Clark · Rule change · TB 24-10 (2024-10 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."
SRF3 Driver Safety & Comfort
#37966 from Robey Clark · Rule change · TB 25-04 (2025-04 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."
SRF3 Update SADEV transmission specs
#37992 from Club Racing Board · Rule change · TB 25-04 (2025-04 Fastrack)
6th 25-23 0.9200 : 1 Final Drive Ratio: 15-48 3.20"
Ohio Valley Great Lakes Champions 2025 → Great Lakes Champions 2026 2025-05-16 to 2026-05-15
SRF3 SRF Rule Updates
#38853 from Robey Clark · Rule change · TB 25-09 (2025-09 Fastrack)
Effective 9/1/25 in SRF, GCR section 9.1.8.D.1.V.ff, add the following: "SRF3 Oil Cooler, P/N G480503 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." Effective 9/1/25 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 must be used as delivered with no machining of any kind. Minimum thickness 13.25mm (0.522”). 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
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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. 1. Hawk Blue pads P/N 801993 only 2. Wilwood Vented Rotor P/N 800065 only, as delivered, with no machining of any kind. Minimum thickness 13.25mm (0.522") 3. Wilwood universal caliper Kit P/N 1180008 as delivered, caliper only P/N 800038; Wilwood knock back spring P/N 800045 may be used as delivered, with no machining of any kind, and only one spring per caliper 4. Renault caliper rubber bushings may be replaced with bronze bushings P/N 1196185 or P/N 1196185A 5. Renault caliper piston may be replaced with P/N 1196184 vented piston as delivered, with no machining of any kind 6. Girling .750" Master Cylinder P/N 880358 as delivered, with no machining of any kind 7. Wilwood .750" Master Cylinder P/N 880357 as delivered, with no machining of any kind 8. Tilton .750" Master Cylinder P/N 880360 as delivered, with no machining of any kind"
SRF3 Add HD Oil Cooler
#38979 from Robey Clark · Rule change · TB 25-10 (2025-10 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."
SRF3 SRF3 Spark Plugs
#39899 from Robey Clark · Rule change · TB 26-03 (2026-03 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.