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BoP Lab / Laguna Seca

AS vs FA vs T4 vs FV pace at Laguna Seca

Class · click a class to switch, + to compare alongside (up to 4: remove one to add another)
AS×B-SpecEPEPxF5vsFA×FBFCFE2FFFMFPvsFV×GT1GT2GT3GTLHPP1P2SMSRF3STLSTUT1T2T3vsT4×
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: AS 1:40.712 Clark Nunes, Hoosier SCCA Super Tour (San Francisco Region) qualifying · FA 1:27.304 Jay Henry Horak, Hoosier SCCA Super Tour (San Francisco Region) qualifying · T4 1:45.119 Izzy Sanchez, Hoosier SCCA Super Tour (San Francisco Region) qualifying · FV 1:48.104 Dennis Andrade, Hoosier SCCA Super Tour (San Francisco Region) qualifying

EventASFAT4FV
Qual bestRace bestTrapQual bestRace bestTrapvs AS% of ASQual bestRace bestTrapvs AS% of ASQual bestRace bestTrapvs AS% of AS
Hoosier SCCA Super Tour (San Francisco Region) ST19JUL262019-07-261:40.712Clark Nunes · fastest of 4 · top 4 within 7.9s1:40.914Clark Nunes · fastest of 4 · top 4 within 8.0s103.0Michael Thompson1:27.304Jay Henry Horak · fastest of 11 · top 5 within 2.2s1:27.751Jim Mali · fastest of 11 · top 5 within 3.4s116.8Jim Mali-13.163squal -13.408s87.0%qual 86.7%1:45.119Izzy Sanchez · fastest of 3 · top 3 within 6.6s1:45.643Izzy Sanchez · fastest of 3 · top 3 within 3.3s92.6Lance Stewart+4.729squal +4.407s104.7%qual 104.4%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+8.674squal +7.392s108.6%qual 107.3%
24 earlier rule changes on record, in force before Hoosier SCCA Super Tour (San Francisco Region) (from 2019)5 weight · 3 cars added · 2 suspension & brakes · 1 aero · 1 engine · 1 induction · 11 wording · T4 Toyota MR-2 Spyder 16V DOHC years corrected from 01-05 to 00-07. · AS Ford Mustang (79-93) 313 CID and under loses 100 lbs to 3150; over 313 CID loses 100 lbs to 3450. · FA Line N minimum weight increases to 1375 lbs. · FV exhaust opening can now extend to 4 inches behind body rear, previously 3 inches maximum. · T4 Mazda Protégé ES 2000 now allows piggyback ECU tuning device; OBD2 requirement waived. · T4 Mazda MX5 Club Model 06-15 allows suspension package with 100 lbs weight increase including helper springs. · FA cars must install AIM part #X47KPFSOLO2R0 data box mount for Majors and Runoffs. · FV front track maximum 52.500" and rear track 49.125"-50.750" no longer prohibits spacers. · FV disc brake assembly minimum weight clarified to 16.5 lbs total; caliper minimum weight requirement removed. · T4 BMW 323 (98-00) newly classified at 3450 lbs with 50mm flat plate restrictor and M52TUB25 engine required. · FA Formula 3 car sequential gearbox weight penalty of 25 lbs removed; minimum weight now 1215 lbs. · T4 Mazda MX-5 Club (06-15) and (2016-), T3 MX-5 Cup and Miata (2016-) hardtop rules clarified; wording changes to permitted parts and specifications. · T2, T3, T4 now allow any thermostat serving only OE intent, previously restricted. · T3 and T4 Mazda MX-5 Miata eligibility capped at 2018 model year, effective 2019-03-01. · AS Spec Mustang (SMG) newly classified with 107.1 wheelbase, 3.73 gears, 355mm front brakes, 300mm rear. · FA Swift 014-Mazda MZR 2.0 engine now requires OE block casting #LF95 and specific OE components instead of sealed Elite Engines sourcing. · FA Swift 016 Mazda Duratec 2.3L and 2.5L minimum weight increases from 1420 to 1450 lbs. · FV intake manifold horizontal tube measurement locations clarified between 1.500" and 8.000" on short side. · T4 Honda Civic Si 2012-2015 permitted sway bars increased to 32mm front and rear. · T4 Ford Fiesta ST years corrected to 14-; T4 Fiat 124/Abarth Edition years added 16-18; battery rule clarified. · T4 Fiat 124 Abarth Edition restrictor changes from 29mm flat plate to 30mm TIR. · T1-T3 spec cars receive clarifications on permitted modifications, documentation requirements, and rule conformance; no performance changes. · T2-T4 subframe bushings may now be replaced with non-spherical bushings of any material. · Scion FR-S and Subaru BRZ 13-16 Solo Spec Coupes added to T4, both 1998cc, 2570 lbs, 225/45/17 tires.showhide
  • T4 MR2 Spyder Year Correction #26936wordingwordingT4 Toyota MR-2 Spyder 16V DOHC years corrected from 01-05 to 00-07.
  • AS Request to Revert to 2017 Weights #25885weightfaster · weightAS Ford Mustang (79-93) 313 CID and under loses 100 lbs to 3150; over 313 CID loses 100 lbs to 3450.
  • FA Adjust Line N restrictor size and minimum weight #26691weight +30 lbsslower · weightFA Line N minimum weight increases to 1375 lbs.
  • FV Exhaust termination rule E&O #26702aeroaeroFV exhaust opening can now extend to 4 inches behind body rear, previously 3 inches maximum.
  • T4 Request to allow piggy back ECU on 2000 Mazda Protégé #26085enginefaster · engineT4 Mazda Protégé ES 2000 now allows piggyback ECU tuning device; OBD2 requirement waived.
  • T4 Request helper spring as optional #26678suspension & brakesslower · suspension & brakesT4 Mazda MX5 Club Model 06-15 allows suspension package with 100 lbs weight increase including helper springs.
  • FA Add data plate requirement #26707wordingwordingFA cars must install AIM part #X47KPFSOLO2R0 data box mount for Majors and Runoffs.
  • FV E&O Dimensions #26674wordingwordingFV front track maximum 52.500" and rear track 49.125"-50.750" no longer prohibits spacers.
  • FV Request to clarify Disc Brake rules bearing retainer & weights #26262weightslower · weightFV disc brake assembly minimum weight clarified to 16.5 lbs total; caliper minimum weight requirement removed.
  • T4 Request to classify 2000 - 2001 BMW 323 #25096cars addedcars addedT4 BMW 323 (98-00) newly classified at 3450 lbs with 50mm flat plate restrictor and M52TUB25 engine required.
  • FA Request to add FA engine spec lines #26183weightfaster · weightFA Formula 3 car sequential gearbox weight penalty of 25 lbs removed; minimum weight now 1215 lbs.
  • T4 Correct Mazda MX-5 Hard Top Notes #26137wordingwordingT4 Mazda MX-5 Club (06-15) and (2016-), T3 MX-5 Cup and Miata (2016-) hardtop rules clarified; wording changes to permitted parts and specifications.
  • T4 Consider opening class rules to allow any thermostat #26187wordingwordingT2, T3, T4 now allow any thermostat serving only OE intent, previously restricted.
  • T4 Cap 2016 Mazda Miata year at 2018 #26388wordingwordingT3 and T4 Mazda MX-5 Miata eligibility capped at 2018 model year, effective 2019-03-01.
  • 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.
  • FA FA MZR 2.0 Engine Specification #25814wordingwordingFA Swift 014-Mazda MZR 2.0 engine now requires OE block casting #LF95 and specific OE components instead of sealed Elite Engines sourcing.
  • FA FA 016 weight increase #26063weightslower · weightFA Swift 016 Mazda Duratec 2.3L and 2.5L minimum weight increases from 1420 to 1450 lbs.
  • FV FV Intake Manifold Clarification #26008wordingwordingFV intake manifold horizontal tube measurement locations clarified between 1.500" and 8.000" on short side.
  • T4 2012-2015 Honda Civic Si Performance Request #26129suspension & brakesfaster · suspension & brakesT4 Honda Civic Si 2012-2015 permitted sway bars increased to 32mm front and rear.
  • T4 Errors, Omissions, and Updates (Various) #22414wordingwordingT4 Ford Fiesta ST years corrected to 14-; T4 Fiat 124/Abarth Edition years added 16-18; battery rule clarified.
  • T4 Request for Adjustments to fiat 124 specline #25371inductionfaster · inductionT4 Fiat 124 Abarth Edition restrictor changes from 29mm flat plate to 30mm TIR.
  • T4 Add Clarification to Spec Car Classifications Vehicle Spec #25774wordingwordingT1-T3 spec cars receive clarifications on permitted modifications, documentation requirements, and rule conformance; no performance changes.
  • T4 Clarify Subframe Bushings Permitted for T2-T4 #25800wordingwordingT2-T4 subframe bushings may now be replaced with non-spherical bushings of any material.
  • T4 Consider Solo SSC cross over classification into T4 #25802cars addedcars addedScion FR-S and Subaru BRZ 13-16 Solo Spec Coupes added to T4, both 1998cc, 2570 lbs, 225/45/17 tires.

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 AS" is the class's best as a share of AS'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 AS'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.