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BoP Lab / Laguna Seca

FF vs FP vs SM vs FV pace at Laguna Seca

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

Quickest here: FF 1:34.290 Chuck Horn, Hoosier SCCA Super Tour (San Francisco Region) qualifying · FP 1:41.237 Joe Huffaker, Hoosier SCCA Super Tour (San Francisco Region) qualifying · SM 1:46.110 Tristan Littlehale, Hoosier SCCA Super Tour (San Francisco Region) race · FV 1:48.104 Dennis Andrade, Hoosier SCCA Super Tour (San Francisco Region) qualifying

EventFFFPSMFV
Qual bestRace bestTrapQual bestRace bestTrapvs FF% of FFQual bestRace bestTrapvs FF% of FFQual bestRace bestTrapvs FF% of FF
Hoosier SCCA Super Tour (San Francisco Region) ST19JUL262019-07-261:34.290Chuck Horn · fastest of 7 · top 5 within 1.8s1:35.120Courtney Crone · fastest of 7 · top 5 within 1.6s104.0Chuck Horn1:41.237Joe Huffaker · fastest of 21:42.737Joe Huffaker · only car97.0Joe Huffaker+7.617squal +6.947s108.0%qual 107.4%1:46.159Tristan Littlehale · fastest of 11 · top 5 within 1.9s1:46.110Tristan Littlehale · fastest of 11 · top 5 within 1.2s87.0Justin Casey+10.990squal +11.869s111.6%qual 112.6%1:48.104Dennis Andrade · fastest of 7 · top 5 within 3.8s1:49.588Dennis Andrade · fastest of 7 · top 5 within 1.4s88.2Dennis Andrade+14.468squal +13.814s115.2%qual 114.7%
14 earlier rule changes on record, in force before Hoosier SCCA Super Tour (San Francisco Region) (from 2019)1 aero · 1 cars added · 1 engine · 1 suspension & brakes · 1 weight · 9 wording · FV exhaust opening can now extend to 4 inches behind body rear, previously 3 inches maximum. · FV front track maximum 52.500" and rear track 49.125"-50.750" no longer prohibits spacers. · 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. · FV disc brake assembly minimum weight clarified to 16.5 lbs total; caliper minimum weight requirement removed. · FP Dodge Daytona/Chrysler Laser added at 2100/2153/2205 lbs; Shelby Charger/Omni 024 weight reduced to 2100/2153/2205 lbs. · SM fuel pump and filter must be Mazda or OEM Equivalent part. · FF Honda Fit permitted to use 0.25mm oversize pistons, cylinder honing increased to 73.315mm maximum. · FF heat shield rule clarified: thermal wrap allowed on manifold exterior if easily removable for inspection. · FF catch tank minimum capacity rules clarified: coolant catch tank now one U.S. pint minimum, oil catch tank one U.S. quart minimum. · FV intake manifold horizontal tube measurement locations clarified between 1.500" and 8.000" on short side. · SM 1999-2000 model year cars may use replacement Mazda ECU and injector harnesses, unmodified. · SM electrical rules reorganized and clarified; alternator external regulation now prohibited except via OEM ECU/kill switch. · SM removes tire tread protrusion beyond fender opening requirement from GCR 9.1.7.C.5.showhide
  • FV Exhaust termination rule E&O #26702aeroaeroFV exhaust opening can now extend to 4 inches behind body rear, previously 3 inches maximum.
  • FV E&O Dimensions #26674wordingwordingFV front track maximum 52.500" and rear track 49.125"-50.750" no longer prohibits spacers.
  • FP 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.
  • FP Hardtops #26476wordingwordingEP open cars may now use aftermarket hardtops if they retain OEM appearance; specific model hardtop allowances removed.
  • FV Request to clarify Disc Brake rules bearing retainer & weights #26262weightslowerFV disc brake assembly minimum weight clarified to 16.5 lbs total; caliper minimum weight requirement removed.
  • FP Request Classification of Dodge Daytona in F Production #26259cars added -150 lbsfasterFP Dodge Daytona/Chrysler Laser added at 2100/2153/2205 lbs; Shelby Charger/Omni 024 weight reduced to 2100/2153/2205 lbs.
  • SM Request to allow aftermarket fuel filters. #26370wordingwordingSM fuel pump and filter must be Mazda or OEM Equivalent part.
  • FF Request for Oversize Honda Fit Pistons #25810enginefasterFF Honda Fit permitted to use 0.25mm oversize pistons, cylinder honing increased to 73.315mm maximum.
  • FF Heat Shield - Fit Intake #26102wordingwordingFF heat shield rule clarified: thermal wrap allowed on manifold exterior if easily removable for inspection.
  • FF Request catch cans/tanks clarification #26158wordingwordingFF catch tank minimum capacity rules clarified: coolant catch tank now one U.S. pint minimum, oil catch tank one U.S. quart minimum.
  • FV FV Intake Manifold Clarification #26008wordingwordingFV intake manifold horizontal tube measurement locations clarified between 1.500" and 8.000" on short side.
  • SM Request 99-00 replacement Wire harnesses #25602wordingwordingSM 1999-2000 model year cars may use replacement Mazda ECU and injector harnesses, unmodified.
  • SM Organize and Clarify 9.1.7.C.1.o. #25913wordingwordingSM electrical rules reorganized and clarified; alternator external regulation now prohibited except via OEM ECU/kill switch.
  • SM Strike Tire Tread Language #26123wordingwordingSM removes tire tread protrusion beyond fender opening requirement from GCR 9.1.7.C.5.

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. "% of FF" is the class's best as a share of FF's best at the same event (100% is level, less is quicker): weather and track condition move every class together, so this compares across years where the raw times do not. It still breaks when FF's own field changes or one session was wet and another dry. 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.