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BoP Lab / Buttonwillow Raceway Park

FB vs FE vs SRF vs FF pace at Buttonwillow Raceway Park

Class · click a class to switch, + to compare alongside (up to 4: remove one to add another)
ASB-SpecEPFAFB×FCvsFE×FE2vsFF×FPFVFXGT1GT2GTXHPPP2SMSMXvsSRF×SRF3STLSTUT1T2T3T4Show 12 inactive classes
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
EventFBFESRFFF
Qual bestRace bestTrapQual bestRace bestTrapvs FBQual bestRace bestTrapvs FBQual bestRace bestTrapvs FB
Super Tour Apr 2019 ST19APR262019-04-26
4 earlier rule changes on record, in force before Super Tour Apr 2019 (from 2019)1 aero · 1 engine · 1 tyres & wheels · 1 wording · FE Hoosier rain tyre part numbers updated: front 44195 W3, rear 44217 W3. · FF Honda Fit cylinder honing increased to 73.315mm and oversize pistons PN 13020-RB7-Z00 now permitted with matching ring packs. · FF intake manifold thermal wrap now permitted if easily removable for inspection; no coating allowed. · FF clarifies coolant and oil catch tank capacity requirements: coolant minimum one U.S. pint, oil minimum one U.S. quart per system.showhide
  • FE Request to Update Hoosier Rain Tire Part Number for the FE cars #26235tyres & wheelstyres & wheelsFE Hoosier rain tyre part numbers updated: front 44195 W3, rear 44217 W3.
  • FF Request for Oversize Honda Fit Pistons #25810enginefaster · engineFF Honda Fit cylinder honing increased to 73.315mm and oversize pistons PN 13020-RB7-Z00 now permitted with matching ring packs.
  • FF Heat Shield - Fit Intake #26102aeroadded · aeroFF intake manifold thermal wrap now permitted if easily removable for inspection; no coating allowed.
  • FF Request catch cans/tanks clarification #26158wordingwordingFF clarifies coolant and oil catch tank capacity requirements: coolant minimum one U.S. pint, oil minimum one U.S. quart per system.

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.