BoP Lab / Buttonwillow Raceway Park
F6 vs FB vs FM vs FC pace at Buttonwillow Raceway Park
Quickest here: FC 1:11.935 Peter West, Super Tour Feb 2023 qualifying
| Event | F6 | FB | FM | FC | |||||||||||||
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| Qual best | Race best | Trap | Qual best | Race best | Trap | vs F6 | Qual best | Race best | Trap | vs F6 | Qual best | Race best | Trap | vs F6 | |||
| Super Tour Feb 2026 CALCL262026-02-21 | 1:45.137Robert Armington · fastest of 4 · top 4 within 25.0s-4.930s (-4.48%) | 1:45.314Robert Armington · fastest of 4 · top 4 within 12.9s-3.208s (-2.96%) | 147.5Bill Wallschlaeger+33.0 mph (+28.9%) | ||||||||||||||
2 rule changes (FC: 2)1 weight · 1 other · FC USF2000 Tube Frame may now use Hewland LD200 4-speed H-pattern as alternative to Hewland JL-200 5-speed sequential. · FC F2000 Metrik ZF2 minimum weight reduced to 1220 lbs.show
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| Super Tour Feb 2025 CALCL252025-02-22 | 1:50.067Paul MacFarlane · only car+38.132s (+53.01%) | 1:48.522Paul MacFarlane · only car | 114.4Paul MacFarlane | ||||||||||||||
6 rule changes (FC: 6)2 cars added · 2 weight · 2 wording · FC tire rule clarified: four dry and four wet tires for Regionals and Majors, eight each for Runoffs; marking and declaration timing adjusted. · FF and FC sequential gearbox weight penalty reduces from 25 lbs to 10 lbs minimum weight addition. · FC F2000 Metrik ZF2 added as spec line car with Brembo 4-piston calipers and vented rotors permitted. · FC tire marking rule clarified: four dry and four wet tires for Regional/Major/Super Tour, eight each for Runoffs; undeclared tire penalty removed. · USF2000 Van Diemen with Mazda MZR LF-DE 2.0L added to FC as spec line car; removed from FX.show
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| Super Tour Feb 2023 CALCL232023-02-24 | 1:11.935Peter West · fastest of 3 · top 3 within 2.6s | ||||||||||||||||
12 rule changes (FC: 12)2 engine · 2 weight · 8 wording · FC/FF PE3-8400 ECU tune-file firmware version changes from V3.04.50 to V3.04.35. · FC Zetec ECU: Performance Electronics model designation changed from PE-3 to PE3-8400; monitor firmware updated to V3.04.50. · FC chassis/frame section cleaned up: panels between main tubes must prevent cockpit intrusion; suspension cannot mount to exterior panels; engine/gearbox exempt from load-bearing restrictions. · FC Zetec ECU requirements clarified: Pectel T2 or PE-3 required with specified communications ports and SCCA tune-file/map from official website. · FC composite anti-intrusion panels of non-uniform thickness limited to eight fasteners per side. · FC tire marking requirements clarified: competitor must ensure tires declared, marked, and logged by Tech before qualifying or race use. · FC Pinto engine loses 10 lbs to 1190; Pinto aluminum head loses 10 lbs to 1190; Zetec loses 10 lbs to 1210. · FC ECU maps clarified: SCCA Club or 2013 Pro map required, available on SCCA website; 1.340 restrictor reminder. · FC Zetec engine minimum weight increases 20 lbs to 1220 lbs. · FC allows Eagle #CRS5483F3D connecting rods alongside original Ford; crankshaft replacement clarified to original Ford only. · FC allows Mahle #930169439 piston as new option alongside Ford original, Sealed Power #H872cp, United Engine and Machine #SO2763. · FC Wiseco piston and Crower rod part numbers updated; minimum weight unchanged at 976 grams.show
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| Super Tour Apr 2019 ST19APR262019-04-26 | |||||||||||||||||
1 earlier rule change on record, in force before Super Tour Apr 2019 (from 2019)1 wording · FC Wiseco piston and connecting rod minimum weight corrected to 976 grams.show
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About this data
Best is the class's fastest lap in that event's qualifying or race sessions, with the driver who set it, how many cars set a time that session and how close the top five were; a best from fewer than three cars is greyed. With two or more classes, "vs" is the gap of each class's best to the first class's at the same event. Newest event first. The coloured figure under each value is the change from the previous event that has one (green is quicker, red slower). Whole laps only, so events with different sector layouts still compare. Weather and track condition are not accounted for.