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BoP Lab / Laguna Seca

FF vs SM vs T3 vs SRF3 pace at Laguna Seca

Class · click a class to switch, + to compare alongside (up to 4: remove one to add another)
Reference class · the yardstick the % column and chart are measured against

Quickest here: FF 1:34.290 Chuck Horn, Super Tour Jul 2019 qualifying · SM 1:46.110 Tristan Littlehale, Super Tour Jul 2019 race · SRF3 1:37.644 TJ Acker, Super Tour Jul 2019 qualifying

EventFFSMT3SRF3
Qual bestRace bestTrapQual bestRace bestTrapvs FF% of FFQual bestRace bestTrapvs FF% of FFQual bestRace bestTrapvs FF% of FF
Super Tour Jul 2019 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 Horn1:46.159Tristan 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%1:37.644TJ Acker · fastest of 25 · top 5 within 0.8s1:38.588Steve Fogg · fastest of 25 · top 5 within 0.7s99.9Mike Miserendino+3.468squal +3.354s103.6%qual 103.6%
36 earlier rule changes on record, in force before Super Tour Jul 2019 (from 2019)8 cars added · 5 suspension & brakes · 5 weight · 3 aero · 2 engine · 2 tyres & wheels · 1 removed · 6 wording · 4 other · SRF drivers may now use Dash Windscreen Kit P/N 1180103 or P/N 180102. · SRF3 multi-piece nose assembly approved for use; no other nose modifications allowed. · SRF3 brakes now accept Hawk Blue 9012 pads P/N 801993 only; Wilwood vented rotor P/N 800065 minimum 13.25mm as delivered; caliper bushings P/N 1196185 A or B permitted. Shock absorbers: Penske P/N 280396 only, sealed, with SCCA bump rubber… · SM fuel pump and filter now permitted as Mazda or OEM equivalent part. · T1-LP Ford Mustang GT 5.0L 2018- classified at 3400 lbs with 65mm restrictor, T2 and T3 Mustangs limited to 2015-2017. · T4 and T3 Mazda MX-5 hardtop rules clarified: any OEM or aftermarket top permitted if retaining OEM silhouette; specific part numbers listed. · T2, T3, T4 now allow any thermostat serving original equipment intent only. · T3 and T4 Mazda MX-5 Miata eligibility capped at 2016–2018 model years. · 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. · SM allows factory Mazda ECU and injector harnesses (P/N 0000-10-020E-99, 0000-10-080D-99) on 1999–2000 model year cars, unmodified. · SM electrical rules reorganized and clarified; alternator now externally regulated only by OEM ECU or master kill switch; harness repair by splicing permitted. · SM tire tread protrusion language removed from GCR 9.1.7.C.5. · T4 Celica GT wheelbase 2600 and 15x7 wheels added; Forte years narrowed; Fiesta ST starts 2014; Fiat 124 years 16-18 added; battery rule clarified. · T1–T4 spec car classifications clarified with permitted parts, rule conformance versions, and exclusions of other touring modifications. · T2–T4 subframe bushings now permitted to be replaced with non-spherical bushings of any material.showhide
  • SRF3 SRF Dash Windscreen Kit #27028aeroadded · aeroSRF drivers may now use Dash Windscreen Kit P/N 1180103 or P/N 180102.
  • T3 Request BMW e36 M3 sway bar and links #26885suspension & brakes
  • SRF3 New SRF Sectional Nose Rule Addition #26914aeroadded · aeroSRF3 multi-piece nose assembly approved for use; no other nose modifications allowed.
  • T3 Request to properly class base Porsche Cayman #26276weight
  • SRF3 SRF Brakes and Shock Rule Changes #26629otherotherSRF3 brakes now accept Hawk Blue 9012 pads P/N 801993 only; Wilwood vented rotor P/N 800065 minimum 13.25mm as delivered; caliper bushings P/N 1196185 A or B permitted. Shock absorbers: Penske P/N 280396 only, sealed, with SCCA bump rubber…
  • T3 Request to classify a 2019 Chevrolet Camaro LT-I4 Turbo 1LE #25731cars added
  • T3 T3 Civic Si weight change #26294weight
  • T3 Class Civic Si 2017+ w/ alternate cage #26449cars added
  • T3 Classify 2014-2017 MK7 Volkswagen GTI for T3 #26695cars added
  • T3 Request to allow E36 M3 in T3 prepared to BMWCCA I sport #25195cars added
  • SM Request to allow aftermarket fuel filters. #26370otheraddedSM fuel pump and filter now permitted as Mazda or OEM equivalent part.
  • T3 Request Mustang GT Limited Prep 2018 Classification #24431cars addedaddedT1-LP Ford Mustang GT 5.0L 2018- classified at 3400 lbs with 65mm restrictor, T2 and T3 Mustangs limited to 2015-2017.
  • T3 Classify 2015+ WRX #25832cars added
  • T3 Correct Mazda MX-5 Hard Top Notes #26137wordingwordingT4 and T3 Mazda MX-5 hardtop rules clarified: any OEM or aftermarket top permitted if retaining OEM silhouette; specific part numbers listed.
  • T3 Request to allow T3 06-15 Miata 17x8 wheels #26161tyres & wheels
  • T3 Request T3 06-15 Miata header #26162other
  • T3 Request Pontiac GXP same allowances to Saturn Sky #26175weight
  • T3 Consider opening class rules to allow any thermostat #26187engineadded · engineT2, T3, T4 now allow any thermostat serving original equipment intent only.
  • T3 2005-2009 Legacy GT/Spec B #26384cars added
  • T3 Cap 2016 Mazda Miata year at 2018 #26388cars addedremoved · cars addedT3 and T4 Mazda MX-5 Miata eligibility capped at 2016–2018 model years.
  • 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.
  • SM Request 99-00 replacement Wire harnesses #25602otheraddedSM allows factory Mazda ECU and injector harnesses (P/N 0000-10-020E-99, 0000-10-080D-99) on 1999–2000 model year cars, unmodified.
  • SM Organize and Clarify 9.1.7.C.1.o. #25913wordingwordingSM electrical rules reorganized and clarified; alternator now externally regulated only by OEM ECU or master kill switch; harness repair by splicing permitted.
  • SM Strike Tire Tread Language #26123wordingremovedSM tire tread protrusion language removed from GCR 9.1.7.C.5.
  • T3 Request correction on brake sizes #26170suspension & brakes
  • T3 Errors, Omissions, and Updates (Various) #22414wordingwordingT4 Celica GT wheelbase 2600 and 15x7 wheels added; Forte years narrowed; Fiesta ST starts 2014; Fiat 124 years 16-18 added; battery rule clarified.
  • T3 Request to update SpecE46 Appendix N. with 2019 Rules #25722removed
  • T3 Request Alternative Nissan Brake Parts - 350Z #25747suspension & brakes
  • T3 Add Clarification to Spec Car Classifications Vehicle Spec #25774wordingwordingT1–T4 spec car classifications clarified with permitted parts, rule conformance versions, and exclusions of other touring modifications.
  • T3 Clarify Subframe Bushings Permitted for T2-T4 #25800suspension & brakesadded · suspension & brakesT2–T4 subframe bushings now permitted to be replaced with non-spherical bushings of any material.
  • T3 Additional weight adjustments for T3 cars T3 weight loss #25803weight
  • T3 Request for Alternate EcoBoost Mustang Brakes #25813suspension & brakes
  • T3 Request to Add the FR-S/86 and BRZ Spec Lines to T3 #25888weight
  • T3 Request to Clarify BMW SpecE46 Tire Verbiage #26027tyres & wheels
About this data
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.