BoP Lab / Buttonwillow Raceway Park
This track has been raced on 4 configurations (Circuit, 2.57 mi; Classic 25 CCW, 2.92 mi; 1.83 mi; 3.02 mi). Laps on different configurations are not comparable, so only events on the 2.57 mile layout are shown; switch above to see the others.
F6 has no laps in the events chosen. It ran at Super Tour Feb 2024: add that event.
FB has no laps in the events chosen. It ran at Super Tour Apr 2018, Super Tour Apr 2017, Majors Apr 2016: add those events.
| Pos | Car | Driver | Class | # | Lap | Theoretical | Qual | Race | 5-lap stint | Consistency | Trap | S1 | S2 | S3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Stohr WF1 | Tim Day Jr | P2 | 8 | 1:08.991 D-Q2 | 1:08.991 | 1:08.991 D-Q2 | 1:39.758 A-R2 | 1:40.037 A-R2 | +1.010 A-R2 | 155.4 A-R2 | 26.848 A-Q1 | 28.010 A-Q1 | 42.420 A-Q1 |
| 2 | Stohr WF1 (2004) | Kevin Mitz | P2 | 13 | 1:12.573 D-Q2 | 1:12.573 D-Q2 |
Sectors are numbered in lap order from start/finish, whatever each event's timing called them; the loop names are SCCA timing's.
#32147 from Formula/Sports Racing Committee · Rule change · TB 22-03 (2022-03 Fastrack)
addedP2 adds Beasley B2 at 1350 lbs with Mazda 12A, 40.5mm venturi, and up to 16.5in wing chord.In P2 Table 1, add a spec line as follows:
P2 Table 1 (Spec Line Cars)
A specification table follows in the original; it is not shown here.
#32148 from Formula/Sports Racing Committee · Rule change · TB 22-03 (2022-03 Fastrack)
wordingP2 wings: terminology change from 'cord' to 'chord', and 'only' removed from Bobsy and Jondal notes.In P2 Table 1, AMAC, Asteck, Cheetah, Decker, Fox, LeGrand, Converted F5 spec line, change the notes as follows:
"Wings up to 16.5in cord chord of single or dual element;"
In P2 Table 1, AMAC-AM5, Fox-2-Seater, Zephyrus, Decker 1/2 spec line, change the notes as follows:
"Wings up to 16.5in cord chord of single or dual element;"
In P2 Table 1, Bobsy spec line, change the notes as follows:
"Wings up to 16.5in cord chord of single or dual element only;"
In P2 Table 1, Jondal spec line, change the notes as follows:
"Wings up to 16.5in cord chord of single or dual element only;"
#32196 from Formula/Sports Racing Committee · Rule change · TB 22-03 (2022-03 Fastrack)
wordingP2 Converted F5 cars renamed F500, must retain F500 suspension, minimum width 55 inches.In P2 Table 1, AMAC, Asteck, Cheetah, Decker, Fox, LeGrand, Converted F5 cars spec line, change the marque as follows:
"AMAC, Asteck, Cheetah, Decker, Fox, LeGrand, Converted F500 cars see notes"
In P2 Table 1, AMAC, Asteck, Cheetah, Decker, Fox, LeGrand, Converted F5 cars spec line, change the notes as follows:
"Converted F500 cars must retain suspension compliant with F500 requirements and meet all P2 non-spec line requirements
except minimum width is 55 inches."
#32373 from Club Racing Board · Rule change · TB 22-04 (2022-04 Fastrack)
wordingP2 Oldsmobile cam rules correct spelling from 'after market' to 'aftermarket' in two sections.In F500, GCR Section 9.1.1.D.15.D., change as follows:
"Stand-alone after market aftermarket ECUs are not permitted."
In P2, GCR Section 9.1.8.F.3.a., change as follows:
"As manufactured and ground by Oldsmobile or by an after after market aftermarket cam manufacturer to Oldsmobile factory
specifications for Vin.A (W41) or Mantapart #OP 1149."
In P2, GCR Section 9.1.8.F.3.b., change as follows:
"As manufactured and ground by Oldsmobile or by an after market aftermarket cam manufacturer to Oldsmobile factory profile
Vin. D or Mantapart #OP 1148."
#32469 from Club Racing Board · Rule change · TB 22-05 (2022-04 Fastrack)
wordingP2 chassis construction clarified: full composite allowed; partial composite must roll without composite parts installed.In P2, GCR section 9.1.8.C.A.1, add the following:
"Chassis fully composed of composite structural materials or chassis partially composed of composite materials that is not
capable of rolling on its wheels without the composite materials being installed."
In P2, GCR section 9.1.8.C.C.1, add the following:
"Allow for any form of chassis construction except fully composite chassis. A chassis partially composed of composite materials
must satisfy the requirements of section 9.4.5.A, B, C, E, F and be capable of rolling on its wheels without the composite materials
being installed."
#32525 from Formula/Sports Racing Committee · Rule change · TB 22-05 (2022-04 Fastrack)
wordingP2 classification wording cleaned up in GCR section 9.1.8.C and GCR contents.In P2, GCR section 9.1.8.C, change as follows:
"PROTOTYPE 2 (P2) CLASSIFICATION"
In GCR CONTENTS, change as follows:
"PROTOTYPE 2 (P2) CLASSIFICATION"
#33378 from Benjamin Cooper · Rule change · TB 23-01 (2023-01 Fastrack)
addedSebeco NP01-EVO and Elan NP01 added to P2 with Mazda 2.0L MZR, no restrictor required, 1600 lb minimum weight.In P2 Table 1, change as follows:
P2 Table 1 (Spec Line Cars)
Marque
Wheelbase inches
max/ Track Max
inches
Weight Displacement Engine Restrictor Notes
A specification table follows in the original; it is not shown here.
#33485 from Jeff Barrow · Rule change · TB 23-01 (2023-01 Fastrack)
wordingP2 Radical SR3/SR4, Cup, Club Sport, Pro-Sport, PR6: assisted shifting clarified from A-assisted to Aassisted; Cup engine restrictor changed from Unrestricted to Not required.In P2 Table 1, Radical SR3/SR4 spec line, make the following change:
P2 Table 1 (Spec Line Cars)
A specification table follows in the original; it is not shown here.
#33519 from Club Racing Board · Rule change · TB 23-01 (2023-01 Fastrack)
wordingP2 chassis now allows composite materials partially installed; anti-intrusion panels attachment simplified; Stohr and converted models clarified.In P2, GCR section 9.1.8.A.1, change as follows:
"Chassis fully composed of composite structural materials or chassis partially composed of composite materials that is notcapable of rolling on its wheels without the composite materials being installed."
In P2, GCR section 9.1.8.C.C.1, change as follows:
"Allow for any form of chassis construction except fully composite chassis incorporating composite structural materials. A chassispartially composed of composite materials must satisfy the requirements of section 9.4.5.A, B, C, E, F, and be capable of rollingon its wheels without the composite materials being installed. Both tube frame and aluminum or steel monocoque chassis
construction are allowed.”
In P2, GCR section 9.1.8.C.2, change as follows:
"Anti-intrusion panels are allowed anywhere on the sides of the chassis. Materials and attachmentare is unrestricted. Attachment points must be at least 15cm (5.906 inches) apart center to center using fasteners no larger than
6.5mm (0.256 inches) diameter.”
In P2 Table 1, add the following:
P2 Table 1 (Spec Line Cars)
A specification table follows in the original; it is not shown here.
#33608 from Club Racing Board · Rule change · TB 23-01 (2023-01 Fastrack)
In P2 Engine Table, Spec Line B.1, change as follows:
#34012 from Club Racing Board · Rule change · TB 23-04 (2023-04 Fastrack)
wordingP2 engine table spec line B.1 redundant effective date language removed and table updated.In P2 Engine Table, Spec Line B.1, change as follows:
#34038 from Club Racing Board · Rule change · TB 23-04 (2023-04 Fastrack)
faster · engineP2 motorcycle restrictor reduced 35mm to 34mm for 2011+ Kawasaki; minimum weights increased to 1100 lbs for 2009+ engines; cockpit length corrected to 23.622 inches.In P2, GCR section 9.1.8.C.D.2, change as follows:
"Height: No part of the vehicle having special or significant aerodynamic function shall exceed a height of 115cm (45.275 inches)
above the ground with the car in normal racing trim, driver aboard."
In P2, GCR section 9.1.8.C.D.3, change as follows:
"However, no portion shall extend more than 10cm (3.937 inches) beyond a plane tangent to the outer face of the front and rear
wheels with tires."
P2 Engine Table
Spec
Line Engine Series
A specification table follows in the original; it is not shown here.
#34143 from Club Racing Board · Rule change · TB 23-05 (2023-05 Fastrack)
wordingP2 minimum side body height must equal front axle centerline height, viewed from side.In P2, GCR section 9.1.8.C.D.6, change as follows:
"As viewed from the side, T the outermost surface of side pods body between the front and rear wheel openings and above the
floor must have a minimum height equal to the height of the front axle centerline."
#34144 from Club Racing Board · Rule change · TB 23-05 (2023-05 Fastrack)
wordingP2 closed cockpit single seat cars now prohibited unless Table 1 spec line permits.In P2, GCR section 9.1.8.C.C, add a section as follows:
"4. Closed cockpit single seat cars are not permitted unless specifically allowed by a spec line in Table 1."
#35182 from Formula/Sports Racing Committee · Rule change · TB 23-12 (2023-09 Fastrack)
wordingP2 Table 1 engine date ranges clarified: Stock Engine replaced with specific marques Suzuki, Yamaha, Honda, BMW for 2009-newer and 2008-older rows.In P2 Table 1, change as follows:
P2 Table 1 (Spec Line Cars)
A specification table follows in the original; it is not shown here.
#35225 from Club Racing Board · Rule change · TB 24-01 (2024-01 Fastrack)
wordingP2 AMAC and related cars: clarified B.1 modified engine range to 2008 and older stock engines only, with 38mm restrictor and 1025 lbs minimum weight.In P2 Table 1, change as follows:
P2 Table 1 (Spec Line Cars)
A specification table follows in the original; it is not shown here.
#35340 from Michael A Reupert · Rule change · TB 24-01 (2024-01 Fastrack)
added · engineP2 Suzuki GSX-R1000 engine: 2007–2008 crankcase 11300-21860 may be replaced with 2016–2019 GSX-S1000 part 11301-04840.#35835 from Bart Wolf · Rule change · TB 24-05 (2024-05 Fastrack)
wordingP2 Spec Line E engine notes clarify oil system, ECU, and exhaust remain unrestricted; wording only.In P2 Engine Table, Spec Line E, change the notes as follows:
"No engine modifications except for dry sump oil system, ECU mapping, and exhaust system the following: oil system, ECU, and
exhaust are unrestricted."
#35900 from Club Racing Board · Rule change · TB 24-05 (2024-05 Fastrack)
wordingP2 FIA Group CN notes clarify V de V European Proto Endurance Challenge bodywork, rear diffuser, wing, wheels, assisted shifting allowed; regulations link provided.In P2 Table 1, FIA Group CN spec line, change the notes as follows:
"FIA Group CN homologated chassis, brake calipers and discs, hub carriers, and suspension components are required. V de
V European Proto Endurance Series Challenge permitted bodywork, rear diffuser, wing, wheels, and assisted
shifting are allowed. Car M must comply with all other P2 requirements. Competitors must have copies of FIA Group CN
Technical Regulations and V de V European Proto Endurance Series Challenge Sporting and Technical Regulations in theirpossession and present them upon request are available here: https://www.scca.com/pages/technical-forms-and-downloads."
#37187 from Marvin Hodges · Rule change · TB 24-12 (2024-12 Fastrack)
slower · weightP2 2000 cc Pinto engine car minimum weight set to 1335 lbs.In P2 Engine Table, Line E Note 2, add the following:
"8. Minimum weight 1335 lbs."
What the rules allowed changed as listed; this does not say what any particular car ran.