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BoP Lab / Buttonwillow Raceway Park

FF pace at Buttonwillow Raceway Park

Class · click a class to switch, + to compare alongside
AS+B-Spec+EP+FA+FC+FE2+FF×FP+FV+GT1+GT2+GT3U+GTX+HP+P+P2+SM+SMX+SRF3+STL+STU+T1+T2+T3+T4+
1:511:521:531:541:553 rule changes between Cal Club 2025 and Cal Club 20263 ▾FF race best at Cal Club 2025: 1:51.118 (Eric Poulsen)FF race best at Cal Club 2026: 1:54.741 (Edward Erlandson)FF qualifying best at Cal Club 2025: 1:52.044 (Eric Poulsen)FF qualifying best at Cal Club 2026: 1:53.098 (Edward Erlandson)Cal Club 20252025Cal Club 20262026
FFsolid race · dashed qualifying · slower is lower
EventFF
Qual bestRace bestTrap
Cal Club 2026 CALCL262026-02-211:53.098Edward Erlandson · 2 cars+1.054s (+0.94%)1:54.741Edward Erlandson · 2 cars+3.623s (+3.26%)133.7Edward Erlandson+19.0 mph (+16.5%)
3 rule changes (FF: 3)3 tyres & wheelsshowhide
  • Formula F Alternative Tire Rule Proposed Clarifications #39281tyres & wheels
  • Page 228, FF tire rule 9.1.1.10.e #38251tyres & wheels
  • Formula F Proposal to Invite Older Cars Via a Tire Rule Change #37802tyres & wheels
Cal Club 2025 CALCL252025-02-221:52.044Eric Poulsen · 1 car1:51.118Eric Poulsen · 1 car114.7Eric Poulsen
15 earlier rule changes on record, in force before Cal Club 2025 (from 2019)9 engine · 2 weight · 1 induction · 1 tyres & wheels · 1 wording · 1 othershowhide
  • Change FF/FC Weight with Sequential Gearbox #36651weight
  • Alternative Oversize Honda Fit Pistons #37064weight
  • Update to FF EGR Blanking Plate Rule #36633engine
  • Honda Fit Oversize Piston Rings #35305other
  • Add Fast Forward Part Numbers for Honda Fit Engine #33752engine
  • Kent crankshaft clarification #30426wording
  • Allow Optional Coolant Bleed Line to Correct a Known Problem #29673engine
  • Clarification regarding Honda LC1 ECU implementation date #29684engine
  • Clarification regarding Honda LC1 ECU implementation #29135engine
  • E&O FF Kent Engine alternator language #28204engine
  • Honda Racing HPD low cost ECU proposal #27563engine
  • Update rain tire designation #28443tyres & wheels
  • Request for Oversize Honda Fit Pistons #25810engine
  • Heat Shield - Fit Intake #26102induction
  • Request catch cans/tanks clarification #26158engine

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.