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BoP Lab / Buttonwillow Raceway Park

HP vs SMX vs FE2 vs AS pace at Buttonwillow Raceway Park

Class · click a class to switch, + to compare alongside (up to 4: remove one to add another)
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
EventHPSMXFE2AS
Qual bestRace bestTrapQual bestRace bestTrapvs HPQual bestRace bestTrapvs HPQual bestRace bestTrapvs HP
Hoosier SCCA Super Tour (Cal Club Region) ST19APR262019-04-26
5 earlier rule changes on record, in force before Hoosier SCCA Super Tour (Cal Club Region) (from 2019)1 cars added · 1 suspension & brakes · 1 weight · 2 wording · EP, FP, HP clarified: tapered holes in ball joints now allowed for bolt conversion; wheel bearings and hubs unrestricted at any wheel. · EP open cars may now use aftermarket hardtops if they retain OEM appearance; specific model hardtop allowances removed. · HP Toyota Yaris 06-11, 07-12 sedan, 12-18 add 130-136 lbs minimum weight. · HP Ford Fiesta years corrected to 11-16; Mazda hubs D651-33-06 front and D651-26-15XE rear allowed. · AS Spec Mustang (SMG) newly classified with 107.1 wheelbase, 3.73 gears, 355mm front brakes, 300mm rear.showhide
  • HP Rollcenter Correction Clarification #25873suspension & brakesfasterEP, FP, HP clarified: tapered holes in ball joints now allowed for bolt conversion; wheel bearings and hubs unrestricted at any wheel.
  • HP Hardtops #26476wordingwordingEP open cars may now use aftermarket hardtops if they retain OEM appearance; specific model hardtop allowances removed.
  • HP Do Something About the Toyota Yaris In H Production #25834weight +130 lbsslowerHP Toyota Yaris 06-11, 07-12 sedan, 12-18 add 130-136 lbs minimum weight.
  • HP Request to Allow 2011+ Fiesta to Change Bolt Pattern on Wheels #25929wordingwordingHP Ford Fiesta years corrected to 11-16; Mazda hubs D651-33-06 front and D651-26-15XE rear allowed.
  • AS SMG Mustang eligibility in American sedan #26224cars addedcars addedAS Spec Mustang (SMG) newly classified with 107.1 wheelbase, 3.73 gears, 355mm front brakes, 300mm rear.

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.