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BoP Lab / Buttonwillow Raceway Park

FC + FV + P2 at Buttonwillow Raceway Park

No mapCal Club 2024

Track map: sectors and speed trap

Track map with timing sectors and speed trap
Shown for: Cal Club 2026 (practice, qualifying, race) · Cal Club 2025 (practice, qualifying, race)
Class · click a class to switch, + to compare alongside
Track configuration
Events

This track has been raced on 2 configurations (The Circuit, 2.57 mi; 2.92 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.

PosCarDriverClass#LapTheoreticalQualRace5-lap stintConsistencyTrapS1S2S3
1Stohr WF1Tim Day JrP281:37.278 A-Q11:37.2781:37.278 A-Q11:39.758 A-R21:40.037 A-R2+1.010 A-R2155.4 A-R226.848 A-Q128.010 A-Q142.420 A-Q1
2GlamdringMark EdwardsFV741:44.706 B-P1:44.5922:05.638 A-Q12:04.892 A-R22:06.364 A-R2+2.303 A-R2128.9 B-P28.863 B-P30.228 B-P45.501 B-P
3Van Diemen DP-08Robert ArmingtonFC111:45.137 A-Q21:44.9431:45.137 A-Q21:45.314 A-R21:46.641 A-R2+1.552 A-R2143.5 A-Q229.106 A-Q230.109 A-R145.728 A-Q2
4Van Diemen RF96Shawn SarbackerFC31:47.570 A-R21:47.2051:47.741 A-Q21:47.570 A-R21:48.139 A-R2+2.423 A-R2146.2 A-Q229.351 A-Q230.778 A-R247.076 A-R2
5Van Diemen RF97Bill WallschlaegerFC01:47.993 A-R21:47.7661:51.040 A-Q11:47.993 A-R21:48.553 A-R2+1.107 A-R2147.5 A-R229.638 A-R230.895 A-R247.233 A-R2
6Van Diemen RF01Paul MacFarlaneFC531:48.522 B-R11:48.4811:50.067 B-Q11:48.522 B-R11:49.143 B-R1+2.405 B-R1114.4 B-R229.050 B-R131.137 B-R148.294 B-R1
7Caracal C1Marjorie LundbergFV24, 701:51.773 B-P1:51.7732:04.579 A-Q22:02.255 B-R12:02.701 B-R1+0.787 B-R1122.3 A-Q230.462 B-P32.246 B-P49.106 B-P
8Van Diemen RF (2000)Greg PizzoFC141:58.213 A-R21:57.3332:10.106 A-Q21:58.213 A-R22:01.052 A-R2+4.196 A-R2127.3 A-R232.045 A-R234.162 A-R251.126 A-R2
9DART IIMace GjermanFV891:58.898 A-R21:56.7992:04.535 A-Q11:58.898 A-R22:07.262 A-R2+8.538 A-R2121.9 A-Q126.541 A-R235.132 A-Q155.126 A-Q2
10Protoform P4Gavin Sweeney >115%FV1072:01.197 B-R12:00.9012:02.354 B-Q22:01.197 B-R12:02.073 B-R2+0.598 B-R2124.6 A-Q132.871 B-P34.423 B-R153.607 B-R1
11LYNXXDonald Manthe >115%FV402:02.715 B-P2:02.3112:06.541 A-Q12:05.686 A-R22:08.709 A-R2+3.944 A-R2117.9 A-Q132.587 B-P35.402 A-R254.322 B-P
12CrusaderBlake Tatum >115%FV32:04.723 A-R12:04.7232:05.855 A-Q22:04.723 A-R12:06.212 A-R2+1.581 A-R2122.5 A-Q134.149 A-R135.231 A-R155.343 A-R1
13Mysterian M2Ronnie Chuck >115%FV50, 512:06.510 B-R22:05.0892:08.877 B-Q22:06.510 B-R22:07.002 B-R2+1.249 B-R2115.9 A-R233.255 B-R235.637 B-R256.197 B-R2

One row per driver and car (a driver who changed cars has a row for each). Each cell is that driver's best in that car across the selected events, with the session it was set in. Best 5-lap stint is the mean of the driver's quickest five consecutive race laps, and consistency is how far their median race lap sat behind their best in that race (small is a driver who does it every lap); both come from the race with the best stint. The fastest in each column is purple, and a car whose best lap is more than 115% of the fastest in its class is greyed (marked ">115%" beside the driver) and left out of the colour scale. Click a column to sort, a row to highlight it. Theoretical lap is the sum of the best sectors, whichever laps they came from, and never slower than the best lap (where a car's fastest laps were recorded without sector times, its best lap is used). The 115% mark is about the car's best lap only: a car whose best lap is within 115% of the fastest in its class is never marked. Greyed sectors with no theoretical lap mean the sector times on file do not add up to a believable lap. Letters refer to the events above; Q is qualifying, R a race.

Sectors

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

By car

CarClassDriversLapQualRaceTrapS1S2S3
Stohr WF1P211:37.278Tim Day Jr1:37.278Tim Day Jr1:39.758Tim Day Jr155.4Tim Day Jr26.848Tim Day Jr28.010Tim Day Jr42.420Tim Day Jr
GlamdringFV11:44.706Mark Edwards2:05.638Mark Edwards2:04.892Mark Edwards128.9Mark Edwards28.863Mark Edwards30.228Mark Edwards45.501Mark Edwards
Van Diemen RF01FC21:45.137Robert Armington1:45.137Robert Armington1:45.314Robert Armington143.5Robert Armington29.050Paul MacFarlane30.109Robert Armington45.728Robert Armington
Van Diemen RF96FC11:47.570Shawn Sarbacker1:47.741Shawn Sarbacker1:47.570Shawn Sarbacker146.2Shawn Sarbacker29.351Shawn Sarbacker30.778Shawn Sarbacker47.076Shawn Sarbacker
Van Diemen RF97FC11:47.993Bill Wallschlaeger1:51.040Bill Wallschlaeger1:47.993Bill Wallschlaeger147.5Bill Wallschlaeger29.638Bill Wallschlaeger30.895Bill Wallschlaeger47.233Bill Wallschlaeger
Caracal C1FV11:51.773Marjorie Lundberg2:04.579Marjorie Lundberg2:02.255Marjorie Lundberg122.3Marjorie Lundberg30.462Marjorie Lundberg32.246Marjorie Lundberg49.106Marjorie Lundberg
Van Diemen RFFC11:58.213Greg Pizzo2:10.106Greg Pizzo1:58.213Greg Pizzo127.3Greg Pizzo32.045Greg Pizzo34.162Greg Pizzo51.126Greg Pizzo
DART IIFV11:58.898Mace Gjerman2:04.535Mace Gjerman1:58.898Mace Gjerman121.9Mace Gjerman26.541Mace Gjerman35.132Mace Gjerman55.126Mace Gjerman
Protoform P4FV12:01.197Gavin Sweeney2:02.354Gavin Sweeney2:01.197Gavin Sweeney124.6Gavin Sweeney32.871Gavin Sweeney34.423Gavin Sweeney53.607Gavin Sweeney
LYNXXFV12:02.715Donald Manthe2:06.541Donald Manthe2:05.686Donald Manthe117.9Donald Manthe32.587Donald Manthe35.402Donald Manthe54.322Donald Manthe
CrusaderFV12:04.723Blake Tatum2:05.855Blake Tatum2:04.723Blake Tatum122.5Blake Tatum34.149Blake Tatum35.231Blake Tatum55.343Blake Tatum
Mysterian M2FV12:06.510Ronnie Chuck2:08.877Ronnie Chuck2:06.510Ronnie Chuck115.9Ronnie Chuck33.255Ronnie Chuck35.637Ronnie Chuck56.197Ronnie Chuck

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

Cal Club 2024 → Cal Club 2025 2024-02-23 to 2025-02-22

FC Four Pot Calipers

#35481 from Steve Jenks · Rule change · TB 24-04 (2024-04 Fastrack)

neutralFC adds F2000 Metrik ZF2 with Ford Zetec engine and four-piston Brembo calipers as spec-line car.

In FC Table FC Charts, add the following:
In FC, GCR section 9.1.1.B.1.c, change as follows:
"The USF2000 tube frame Van Diemen car powered by the Mazda MZR LF-DE 2 liter engine and the F2000 Metrik ZF2 car
equipped with 4-piston calipers is are added as a "spec line" cars in Formula Continental. Additional "spec line" cars are
disfavored, and Balance of Performance (BoP) adjustments to keep "spec line" cars competitive with cars that meet the class
formula are likewise disfavored."
FC Charts
Car Engine Wheel Width

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(in) ± .060 Aero Transmission Weight Notes

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

P2 CN Spec ECU

#35835 from Bart Wolf · Rule change · TB 24-05 (2024-05 Fastrack)

neutralP2 Spec ECU engine modifications clarified: oil system, ECU, and exhaust unrestricted 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."

P2 E&O - Correct FIA Group CN spec line notes

#35900 from Club Racing Board · Rule change · TB 24-05 (2024-05 Fastrack)

neutralP2 FIA Group CN spec notes clarified: Series changed to Challenge, documentation requirement moved to online link.

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 their
possession and present them upon request are available here: https://www.scca.com/pages/technical-forms-and-downloads."

FV Disc Brakes

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

neutralFV ferrous rotor no longer required to be smooth; may have up to three pad cleaning grooves per side.

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."

FC 9.1.1.10.h. FC Tire Rule

#36533 from SCCA Staff · Rule change · TB 24-09 (2024-09 Fastrack)

slowerFC tire limit reduced to four dry and four wet for Regional/Major/Super Tour, eight for Runoffs.

In FC, GCR section 9.1.1.B.10.h, change as follows:
"(Effective 11/1/2024) FC is permitted a maximum of four (4) dry tires and four (4) wet tires for all Regional, Major, and Super
Tour events; eight (8) dry tires and eight (8) wet tires are permitted for the Runoffs. This is effective beginning with the first (1st)
qualifying session of the event. Marked tires are not required for The tire limit does not apply to testing or practice. It is the
competitor's responsibility to ensure that the tires are declared, marked, and logged by Tech immediately upon conclusion of the
first qualifying session, as provided in the event supplemental regulations, or per the instructions of the Race Director or Chief
Steward. in advance of the tire(s) being used in a qualifying session or race. Failure to participate on marked Use of tires in
excess of the number allowed will result in a penalty. Failure to participate on declared/marked/logged tires after the time

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prescribed for the same may result in a penalty. If a tire is damaged during a qualifying session or a race, the competitor may
replace the damaged tire with a used tire upon approval by the Race Director or Chief Steward without loss of time or finishing
position. Second or subsequent damaged tires may similarly be replaced upon approval by the Race Director or Chief Steward,
but such will result in the loss of grid position in the subsequent race or session; the competitor will start at the back of the grid.
Replacement of a damaged tire with a new tire upon approval by the Race Director or Chief Steward will result in loss of grid
position in the subsequent race or session; the competitor will start at the back of the grid."

FC Change FF/FC Weight with Sequential Gearbox

#36651 from Robert Wright · Rule change · TB 24-11 (2024-11 Fastrack)

fasterFF and FC cars with sequential gearbox must add 10 lbs. to minimum weight, down from 25 lbs.

In FF, GCR section 9.1.1.B.20.A.3, change as follows:
"Cars running with a sequentially shifted gear box shall must add 25 10 lbs. to minimum weight."
In FC, GCR section 9.1.1.B.20.B.4, change as follows:
"Cars running with a sequentially shifted gear box shall must add 25 10 lbs. to minimum weight."

P2 2000 cc Pinto Engine Car Weight

#37187 from Marvin Hodges · Rule change · TB 24-12 (2024-12 Fastrack)

slowerP2 2000cc 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."

Cal Club 2025 → Cal Club 2026 2025-02-22 to 2026-02-21

FC F2000 MZR Spec Line Clarity/Revision Requested

#38927 from Rock Beauchamp · Rule change · TB 26-01 (2026-01 Fastrack)

neutralFC USF2000 Tube Frame may use Hewland LD200 4-speed H-pattern as alternative to Hewland JL-200 5-speed sequential.

In FC Charts table, USF2000 Tube Frame spec line, add the following to the Notes:
"Cars originally built with the Hewland LD200 4-speed H-pattern may use that transmission as an alternative to the Hewland JL-
200 5-speed sequential transmission."

FC Adjust F2000 Metrik ZF2 weight

#39612 from Club Racing Board · Rule change · TB 26-01 (2026-01 Fastrack)

fasterFC F2000 Metrik ZF2 minimum weight reduced to 1220 lbs.

In FC Charts table, F2000 Metrik ZF2 spec line, change the Weight as follows:
"1240 1220"

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