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BoP Lab / Buttonwillow Raceway Park

F5 vs SRF vs BSpc pace at Buttonwillow Raceway Park

Class · click a class to switch, + to compare alongside (up to 4)
AS+B Spec+B-Spec+vsBSpc×EP+F5×F6+F500+FA+FB+FC+FE+FE 2+FE2+FF+FM+FP+FV+FX+GT1+GT2+GT3+GT3U+GTL+GTX+HP+P+P1+P2+PX+SM+SMX+vsSRF×SRF3+STL+STU+T1+T2+T3+T4+
Reference class · the others' laps as a share of this one's at the same event, so years compare despite weather; + a class above to measure against it
Track configuration

Quickest here: BSpc 2:15.276 Thomas Lepper, Cal Club 2021 race

EventF5SRFBSpc
Qual bestRace bestTrapQual bestRace bestTrapvs F5Qual bestRace bestTrapvs F5
Cal Club 2021 CALCL212021-02-192:15.802Thomas Lepper · fastest of 3 · top 3 within 3.8s2:15.276Thomas Lepper · fastest of 3 · top 3 within 2.4s95.8Fritz Wilke
14 earlier rule changes on record, in force before Cal Club 2021 (from 2019)3 suspension & brakes · 2 engine · 2 weight · 1 induction · 1 tyres & wheels · 5 othershowhide
  • SRF SRF Shocks, Springs and Ride Height. #29688suspension & brakes
  • F5 Request to Update Suzuki Engine Years for F500 #29453engine
  • F5 Request for Cockpit Adjustment of External Jetting Devices #28359other
  • F5 Two Stroke Motors (reply to #28359 WDYT) #28816engine
  • F5 Re letter requesting driver adjustable carb mixture #28840other
  • F5 #28359 WDYT Request for Cockpit Adjustment #28875other
  • SRF SRF Bump Stop Correction #27019suspension & brakes
  • F5 Change 600cc restrictor size #27883induction
  • SRF SRF Rain / Brake Rule - BoD approved as follows #34958suspension & brakes
  • SRF SRF Tire Warmer Rule #27622tyres & wheels
  • SRF SRF / SRF3 Nose Weight Reduction #27706weight
  • SRF SRF / SRF3 Majors & Regional Class Updates #27723other
  • F5 Request for Weight Increase for Motorcycle Powered Cars #27214weight +25 lbs
  • SRF SRF Dash Windscreen Kit #27028other

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.