BoP Lab / Buttonwillow Raceway Park

FA pace at Buttonwillow Raceway Park

FAsolid race · dashed qualifying · slower is lower

	Event	FA
	Event	Qual best	Race best	Trap
	Cal Club 2026 CALCL262026-02-21	1:35.792Greg Labadie · 1 car-3.750s (-3.77%)	1:37.275Greg Labadie · 1 car-2.623s (-2.63%)	163.8Greg Labadie+36.4 mph (+28.6%)
7 rule changes (FA: 7)3 induction · 2 tyres & wheels · 1 engine · 1 othershowhide 2026-02-01 Pro Mazda Classification and Performance Enhancement Proposal #39411induction 2026-01-01 Alternate Intake Manifold for MZR #38223induction 2026-01-01 Engine Compression Rule Change Request #39302engine 2026-01-01 Change Formula 1000 allowances #39608induction 2025-11-01 Re-Consider USF Pro 2000 Car for Formula Atlantic Class #38783other 2025-07-01 Ligier JS F3 Tire Choice #38434tyres & wheels 2025-03-01 Update Formula Renault 2.0 spec line notes #37853tyres & wheels
	Cal Club 2025 CALCL252025-02-22	1:39.542Greg Labadie · 1 car	1:39.898Greg Labadie · 1 car	127.4Greg Labadie
59 earlier rule changes on record, in force before Cal Club 2025 (from 2019)16 engine · 13 weight · 6 induction · 6 tyres & wheels · 4 removed · 2 aero · 2 cars added · 1 wording · 9 othershowhide 2025-02-01 Classify FR European Championship car as spec line car in Table 2 #37658cars added 2023-06-01 Simplify Pro Formula Mazda wheel allowance #34190tyres & wheels 2023-05-01 E&O - Correct Pro Formula Mazda spec line dimensional equivalent #34085tyres & wheels 2023-05-01 Add new spec line for MSR Formula Mazda FMzR to Table 2 #34139other 2023-01-01 BDA Displacement #33431engine 2022-12-01 Reclassify 2010-2017 Formula Renault 2.0 as a spec line car in FA #33395weight 2022-12-01 Change Swift 016 2.3L restrictor size and minimum weight #33472induction -30 lbs 2022-10-01 Pro Formula Mazda Dimension E&O #33160induction 2022-05-01 Update FR Americas rulebook requirement #32491engine 2022-05-01 Clarify verification of sealed engine compliance #32522engine 2022-05-01 Clarify Formula Lites and FR Americas sealed engine requirement #32523engine 2022-04-01 E&O FA Transmission section #32251tyres & wheels 2022-04-01 E&O Swift 016 2.5 liter Aero column #32363aero 2022-03-01 Closing the Gap #31934other 2022-02-01 Reorganize Tables 1 and 2 #31985weight 2021-09-01 E&O Table 2 engine names #31085engine 2021-08-01 Move Toyota 1800 to Table 2 #30822removed 2021-08-01 E&O Swift 016 wheel width reference #30939tyres & wheels 2021-07-01 Update FA rules package #30717engine 2021-07-01 Move Mazda MZR/Ford Duratec 2296cc and 2500cc to Table 2 #30718removed 2021-07-01 Clean up Table 2 Mazda MZR 2.0L and Honda Civic K20Z3 spec lines #30719other 2021-06-01 E&O Mazda MZR 2.0 and Honda Civic K20Z3 chassis eligibility #30632other 2021-05-01 Correct engine name in Swift 016 2.3 liter spec line #30447engine 2021-05-01 Correct engine name in Swift 016 2.5 liter spec line #30448engine 2021-05-01 Revise Table 1 Spec Lines and clarify application of Engine Notes #30456engine 2021-04-01 Update Table 1 Weights for Spec Lines C, I, and K #30355weight -25 lbs 2021-04-01 Remove redundant reference in Table 2 spec line #30366weight 2021-04-01 Correct the name of the FR Americas car #30369wording 2021-04-01 Clean up Spec Line D in Table 1 #30372weight 2021-04-01 Table 2 Honda K20Z3 request #30386induction 2021-03-01 E&O FA Intake Restrictors #30273induction 2021-03-01 Clean up Spec Lines A and B in Table 1 #30274weight 2021-03-01 Clean up Spec Line C in Table 1 #30275weight 2021-03-01 Clean up Spec Lines J and L in Table 1 #30276weight 2021-03-01 Move engine specifications to Pro Formula Mazda spec line notes #30278engine 2021-03-01 Update F3 Americas spec line #30280other 2021-01-01 Request to classify Formula Lites Crawford FL15 #29702cars added 2020-07-01 Request to Adjust FB Weight for Stock Engines #29005weight 2020-06-01 E&O permitted engine modifications #28831engine 2020-06-01 E&O Transmissions #28832other 2020-06-01 Swift 016 Gurney flap wicker clarification #28884aero 2020-05-01 Remove redundant spec line in Table 1 #28720removed 2020-05-01 E&O general engine rules #28772engine 2020-04-01 Request higher compression ratio and prior weights for F1000 cars #28162engine 2020-04-01 Remove redundant wheel dimension provisions #28554tyres & wheels 2020-04-01 E&O Formula 3 spec line #28596induction 2020-03-01 FA weight correction/clarification #28430engine 2020-01-01 Request to merge FB into FA #25611weight 2020-01-01 Suggestions for FB/F1000 into FA #27319other 2020-01-01 Change Swift 016 - 2.3 liter Mazda Duratec restrictor size #27880induction 2019-12-01 Move wheel dimensions from Bodywork subsection to #27493tyres & wheels 2019-12-01 Table 2 Mazda MZR 2.0 E&O #27640other 2019-10-01 Follow up to Letter #27344 on Honda Powered FA Rules #27363removed 2019-08-31 Swift 014 Mazda MZR 2.0 E&O #27305weight 2019-05-31 Adjust Line N restrictor size and minimum weight #26691weight +30 lbs 2019-05-01 Add data plate requirement #26707other 2019-03-01 Request to add FA engine spec lines #26183engine 2019-02-01 FA MZR 2.0 Engine Specification #25814engine 2019-02-01 FA 016 weight increase #26063weight

Best is the class's fastest lap in that event's qualifying or race sessions, with the driver who set it and how many cars set a time. 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.