BoP Lab / Laguna Seca

SRF3 vs P2 vs F5 vs FV pace at Laguna Seca

Quickest here: SRF3 1:37.644 TJ Acker, Hoosier SCCA Super Tour (San Francisco Region) qualifying · P2 1:26.231 Chuck Bona, Hoosier SCCA Super Tour (San Francisco Region) race · FV 1:48.104 Dennis Andrade, Hoosier SCCA Super Tour (San Francisco Region) qualifying

	Event	SRF3			P2					F5					FV
	Event	Qual best	Race best	Trap	Qual best	Race best	Trap	vs SRF3	% of SRF3	Qual best	Race best	Trap	vs SRF3	% of SRF3	Qual best	Race best	Trap	vs SRF3	% of SRF3
	Hoosier SCCA Super Tour (San Francisco Region) ST19JUL262019-07-26	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	1:26.927Tim Day Jr · fastest of 5 · top 5 within 7.8s	1:26.231Chuck Bona · fastest of 7 · top 5 within 6.8s	116.8Tim Day Jr	-12.357squal -10.717s	87.5%qual 89.0%						1:48.104Dennis Andrade · fastest of 7 · top 5 within 3.8s	1:49.588Dennis Andrade · fastest of 7 · top 5 within 1.4s	88.2Dennis Andrade	+11.000squal +10.460s	111.2%qual 110.7%
14 earlier rule changes on record, in force before Hoosier SCCA Super Tour (San Francisco Region) (from 2019)3 induction · 2 weight · 1 aero · 1 engine · 6 wording · 1 other · P2 cars limited to power application on maximum two wheels, effective 2019-07-01. · SRF drivers may now use Dash Windscreen Kit P/N 1180103 or P/N 180102. · P2 Enterprise minimum weight increases to 1375 lbs; peak horsepower of sealed ESR engine reduced per CRB specification. · FV exhaust opening can now extend to 4 inches behind body rear, previously 3 inches maximum. · SRF3 nose assembly must use approved multi-piece design; no modifications allowed except as specified. · FV front track maximum 52.500" and rear track 49.125"-50.750" no longer prohibits spacers. · 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. · FV disc brake assembly minimum weight clarified to 16.5 lbs total; caliper minimum weight requirement removed. · P2 stock engine restrictor shrinks to 35.0mm and weight rises to 1025 lbs; modified engine restrictor to 34.0mm, weight to 1125 lbs; line B.5 restrictor to 33.0mm, weight to 1185 lbs. · P2 Line A.1 restrictor reduced from 40mm to 38mm. · FV intake manifold horizontal tube measurement locations clarified between 1.500" and 8.000" on short side. · P2 Spec Line cars now allow 1345cc Hayabusa stock engines at 1050 lbs with 30mm restrictor. · P2 Group CN Honda K20A-FD2 55mm restrictor implementation delayed from 1/1/2019 to 3/1/2019. · P2 Honda K20A-FD2 in CN chassis must use stock intake manifold with 64mm throttle body and 55mm restrictor at 1500 lbs minimum weight.showhide 2019-07-01 P2 E&O Transmissions #27006otherslowerP2 cars limited to power application on maximum two wheels, effective 2019-07-01. 2019-07-01 SRF3 SRF Dash Windscreen Kit #27028wordingwordingSRF drivers may now use Dash Windscreen Kit P/N 1180103 or P/N 180102. 2019-06-01 P2 Request to restrict all cars #26246weightslowerP2 Enterprise minimum weight increases to 1375 lbs; peak horsepower of sealed ESR engine reduced per CRB specification. 2019-05-31 FV Exhaust termination rule E&O #26702aeroaeroFV exhaust opening can now extend to 4 inches behind body rear, previously 3 inches maximum. 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. 2019-05-01 FV E&O Dimensions #26674wordingwordingFV front track maximum 52.500" and rear track 49.125"-50.750" no longer prohibits spacers. 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. 2019-04-01 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. 2019-03-01 P2 Change Engine Table Lines B.1 & B.5 #25777inductionslowerP2 stock engine restrictor shrinks to 35.0mm and weight rises to 1025 lbs; modified engine restrictor to 34.0mm, weight to 1125 lbs; line B.5 restrictor to 33.0mm, weight to 1185 lbs. 2019-03-01 P2 Change Line A.1 restrictor size #26429inductionslowerP2 Line A.1 restrictor reduced from 40mm to 38mm. 2019-02-01 FV FV Intake Manifold Clarification #26008wordingwordingFV intake manifold horizontal tube measurement locations clarified between 1.500" and 8.000" on short side. 2019-01-01 P2 Request to Allow 1345cc Hayabusa Engines for Spec Line P2 Cars #25595enginefasterP2 Spec Line cars now allow 1345cc Hayabusa stock engines at 1050 lbs with 30mm restrictor. 2019-01-01 P2 Change CN inlet restrictor implementation date #25816wordingwordingP2 Group CN Honda K20A-FD2 55mm restrictor implementation delayed from 1/1/2019 to 3/1/2019. 2019-01-01 P2 Clarify Honda K20A-FD2 parts requirement #25950inductionslowerP2 Honda K20A-FD2 in CN chassis must use stock intake manifold with 64mm throttle body and 55mm restrictor at 1500 lbs 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 SRF3" is the class's best as a share of SRF3'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 SRF3'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.