BoP Lab / Laguna Seca

AS vs F5 vs T4 vs FC pace at Laguna Seca

Quickest here: AS 1:40.712 Clark Nunes, Super Tour Jul 2019 qualifying · T4 1:45.119 Izzy Sanchez, Super Tour Jul 2019 qualifying · FC 1:28.860 Jason Reichert, Super Tour Jul 2019 qualifying

	Event	AS			F5					T4					FC
	Event	Qual best	Race best	Trap	Qual best	Race best	Trap	vs AS	% of AS	Qual best	Race best	Trap	vs AS	% of AS	Qual best	Race best	Trap	vs AS	% of AS
	Super Tour Jul 2019 ST19JUL262019-07-26	1:40.712Clark Nunes · fastest of 4 · top 4 within 7.9s	1:40.914Clark Nunes · fastest of 4 · top 4 within 8.0s	103.0Michael Thompson						1:45.119Izzy Sanchez · fastest of 3 · top 3 within 6.6s	1:45.643Izzy Sanchez · fastest of 3 · top 3 within 3.3s	92.6Lance Stewart	+4.729squal +4.407s	104.7%qual 104.4%	1:28.860Jason Reichert · fastest of 11 · top 5 within 0.8s	1:29.754Jason Reichert · fastest of 11 · top 5 within 1.2s	110.2James Hakewill	-11.160squal -11.852s	88.9%qual 88.2%
17 earlier rule changes on record, in force before Super Tour Jul 2019 (from 2019)4 cars added · 3 suspension & brakes · 2 engine · 1 induction · 1 weight · 6 wording · AS Ford Mustang 79-93 non-Cobra drops 100 lbs to 3150; over 313 CID Cobra drops 100 lbs to 3450. · FC Wiseco piston and Crower rod part numbers updated; minimum weight unchanged at 976 grams. · 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. · AS adds Spec Mustang SMG classification with 107.1 wheelbase, 3.73 gears, 355mm front and 300mm rear brakes. · FC Wiseco piston and connecting rod minimum weight corrected to 976 grams. · 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 2019-07-01 T4 MR2 Spyder Year Correction #26936wording 2019-05-31 AS Request to Revert to 2017 Weights #25885weightfaster · weightAS Ford Mustang 79-93 non-Cobra drops 100 lbs to 3150; over 313 CID Cobra drops 100 lbs to 3450. 2019-05-31 T4 Request to allow piggy back ECU on 2000 Mazda Protégé #26085engine 2019-05-31 T4 Request helper spring as optional #26678suspension & brakes 2019-05-01 FC E&O Wiseco piston and Crower connecting rod #26659wordingwordingFC Wiseco piston and Crower rod part numbers updated; minimum weight unchanged at 976 grams. 2019-04-01 T4 Request to classify 2000 - 2001 BMW 323 #25096cars added 2019-03-01 T4 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. 2019-03-01 T4 Consider opening class rules to allow any thermostat #26187engineadded · engineT2, T3, T4 now allow any thermostat serving original equipment intent only. 2019-03-01 T4 Cap 2016 Mazda Miata year at 2018 #26388cars addedremoved · cars addedT3 and T4 Mazda MX-5 Miata eligibility capped at 2016–2018 model years. 2019-02-01 AS SMG Mustang eligibility in American sedan #26224cars addedaddedAS adds Spec Mustang SMG classification with 107.1 wheelbase, 3.73 gears, 355mm front and 300mm rear brakes. 2019-02-01 T4 2012-2015 Honda Civic Si Performance Request #26129suspension & brakes 2019-01-01 FC Correct Wiseco piston and connecting rod #25809wordingwordingFC Wiseco piston and connecting rod minimum weight corrected to 976 grams. 2019-01-01 T4 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. 2019-01-01 T4 Request for Adjustments to fiat 124 specline #25371induction 2019-01-01 T4 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. 2019-01-01 T4 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. 2019-01-01 T4 Consider Solo SSC cross over classification into T4 #25802cars added

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 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.