BoP Lab / Laguna Seca

AS vs SRF3 vs SM vs STL pace at Laguna Seca

Quickest here: AS 1:40.712 Clark Nunes, Hoosier SCCA Super Tour (San Francisco Region) qualifying · SRF3 1:37.644 TJ Acker, Hoosier SCCA Super Tour (San Francisco Region) qualifying · SM 1:46.110 Tristan Littlehale, Hoosier SCCA Super Tour (San Francisco Region) race · STL 1:42.330 Tim Auger, Hoosier SCCA Super Tour (San Francisco Region) race

	Event	AS			SRF3					SM					STL
	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
	Hoosier SCCA Super Tour (San Francisco Region) 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	1:37.644TJ Acker · fastest of 25 · top 5 within 0.8s	1:38.588Steve Fogg · fastest of 25 · top 5 within 0.7s	99.9Mike Miserendino	-2.326squal -3.068s	97.7%qual 97.0%	1:46.159Tristan Littlehale · fastest of 11 · top 5 within 1.9s	1:46.110Tristan Littlehale · fastest of 11 · top 5 within 1.2s	87.0Justin Casey	+5.196squal +5.447s	105.1%qual 105.4%	1:42.773Tim Auger · fastest of 7 · top 5 within 4.9s	1:42.330Tim Auger · fastest of 6 · top 5 within 4.5s	95.7Thomas Lepper	+1.416squal +2.061s	101.4%qual 102.0%
19 earlier rule changes on record, in force before Hoosier SCCA Super Tour (San Francisco Region) (from 2019)3 cars added · 3 induction · 2 weight · 11 wording · SRF drivers may now use Dash Windscreen Kit P/N 1180103 or P/N 180102. · STU alternate intake manifolds now allowed case-by-case instead of prohibited. · AS Ford Mustang (79-93) 313 CID and under loses 100 lbs to 3150; over 313 CID loses 100 lbs to 3450. · SRF3 nose assembly must use approved multi-piece design; no modifications allowed except as specified. · STL Acura/Honda B18 except C engine restrictor increases from 53mm to 54mm flat plate. · SRF3 brakes now allow Hawk Blue 9012 pads P/N 801993 only; shocks simplified to Penske P/N 280396 sealed assembly only, with optional SCCA Enterprises bump rubber P/N 280407 from 05/01/2020. · STL and STU ride height measurement clarified: without driver, at rocker panel lowest point, excluding pinch weld. · SM fuel pump and filter must be Mazda or OEM Equivalent part. · STL adds VW 1.8L R4 20VT 1781cc, 1 minimum weight, turbo removed permitted. · STL Mazda Renesis minimum weight reduced from 2800 to 2700 lbs. · STL Mazda MX-5 Cup brake pad compound changed to open. · STL adds Acura/Honda B18C1 GSR with 54mm flat plate restrictor and port matching limited to 1 inch. · STL Mazda 12 and 13B now permit port matching; previous ban removed. · AS Spec Mustang (SMG) newly classified with 107.1 wheelbase, 3.73 gears, 355mm front brakes, 300mm rear. · 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. · STL B18C Type R variants get 54mm flat plate restrictor; B17 also gets 54mm restrictor. · STL Mazda Miata removes maximum displacement limit and adjusts minimum weight.showhide 2019-07-01 SRF3 SRF Dash Windscreen Kit #27028wordingwordingSRF drivers may now use Dash Windscreen Kit P/N 1180103 or P/N 180102. 2019-07-01 STL Request clarification for manifold and throttle in STU #27004inductionfasterSTU alternate intake manifolds now allowed case-by-case instead of prohibited. 2019-05-31 AS Request to Revert to 2017 Weights #25885weightfasterAS Ford Mustang (79-93) 313 CID and under loses 100 lbs to 3150; over 313 CID loses 100 lbs to 3450. 2019-05-31 SRF3 New SRF Sectional Nose Rule Addition #26914wordingwordingSRF3 nose assembly must use approved multi-piece design; no modifications allowed except as specified. 2019-05-31 STL Request Restrictor Plate correction #26779inductionfasterSTL Acura/Honda B18 except C engine restrictor increases from 53mm to 54mm flat plate. 2019-05-01 SRF3 SRF Brakes and Shock Rule Changes #26629wordingwordingSRF3 brakes now allow Hawk Blue 9012 pads P/N 801993 only; shocks simplified to Penske P/N 280396 sealed assembly only, with optional SCCA Enterprises bump rubber P/N 280407 from 05/01/2020. 2019-05-01 STL Request Ride Height Clarification #26597wordingwordingSTL and STU ride height measurement clarified: without driver, at rocker panel lowest point, excluding pinch weld. 2019-03-01 SM Request to allow aftermarket fuel filters. #26370wordingwordingSM fuel pump and filter must be Mazda or OEM Equivalent part. 2019-03-01 STL Request to Allow VW 1.8L Engine #25614cars addedcars addedSTL adds VW 1.8L R4 20VT 1781cc, 1 minimum weight, turbo removed permitted. 2019-03-01 STL Request to reduce weight of RX8 with Renesis rotary #25781weight -100 lbsfasterSTL Mazda Renesis minimum weight reduced from 2800 to 2700 lbs. 2019-03-01 STL Request for Open Brake Pads On Mazda MX-5 Cup NC #25821wordingwordingSTL Mazda MX-5 Cup brake pad compound changed to open. 2019-03-01 STL Request to clarify B18C1 GSR Honda B motor table #26209cars addedcars addedSTL adds Acura/Honda B18C1 GSR with 54mm flat plate restrictor and port matching limited to 1 inch. 2019-03-01 STL Port Matching #26415wordingfasterSTL Mazda 12 and 13B now permit port matching; previous ban removed. 2019-02-01 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. 2019-02-01 SM Request 99-00 replacement Wire harnesses #25602wordingwordingSM 1999-2000 model year cars may use replacement Mazda ECU and injector harnesses, unmodified. 2019-02-01 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. 2019-02-01 SM Strike Tire Tread Language #26123wordingwordingSM removes tire tread protrusion beyond fender opening requirement from GCR 9.1.7.C.5. 2019-01-01 STL Request to equalize FPR Reduction on all B-Series Vtec Engines #24746inductionslowerSTL B18C Type R variants get 54mm flat plate restrictor; B17 also gets 54mm restrictor. 2019-01-01 STL Request E&O for Mazda Miata Spec Line #25955wordingunclearSTL Mazda Miata removes maximum displacement limit and adjusts minimum weight.

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.