BoP Lab / Road America

HP at Road America

This track has been raced on 2 configurations (Scoring Sidebar Race, 4.05 mi; 4.01 mi). Laps on different configurations are not comparable, so only events on the 4.05 mile layout are shown; switch above to see the others.

40 laps are left out as timing errors (far too short to be a lap of this track). The rest of those sessions, sectors included, is used.

Pos	Car	Driver	Class	#	Lap	Theoretical	Qual	Race	5-lap stint	Consistency	Trap	S1	S2	S3	S4
1	Triumph Spitfire	Steve Sargis	HP	18	2:37.567 B-Q2	2:36.813	2:37.567 B-Q2	2:38.811 D-R1	2:39.370 D-R1	+0.620 D-R1	124.3 D-R1	45.353 D-R1	59.514 B-Q2	30.507 B-Q2	21.439 B-R1
2	Volkswagen GLI	Chris Schaafsma	HP	23	2:41.468 B-R1	2:41.175	2:42.681 B-Q2	2:41.468 B-R1	2:42.833 B-R2	+0.721 B-R2	121.1 B-Q2	46.791 B-R2	1:01.221 B-R1	31.515 B-R2	21.648 B-R1
3	Fiat X 1/9	Matt Brannon	HP	22	2:41.613 D-R1	2:41.021		2:41.613 D-R1	2:42.312 D-R1	+0.936 D-R1	118.7 D-R1	46.648 D-R1	1:00.758 D-R1	31.387 D-R1	22.228 D-R1
4	Honda Civic Si	Greg Gauper	HP	15	2:42.631 B-R2	2:41.983	2:44.056 B-Q2	2:42.631 B-R2	2:43.802 B-R2	+2.484 B-R2	119.4 B-R2	46.910 B-R2	1:01.402 B-R2	31.757 B-R2	21.914 B-R2
5	Mini Cooper	Robert Bax	HP	33	2:45.095 B-R2	2:44.711	2:47.146 B-Q2	2:45.095 B-R2	2:47.654 B-R2	+3.093 B-R2	117.1 B-R2	47.728 B-R2	1:02.308 B-R2	32.373 B-R1	22.302 B-R1
6	Volkswagen Scirocco	William Trainer 2+ cars	HP	7	2:48.685 D-R1	2:47.586		2:48.685 D-R1	2:49.403 D-R1	+1.332 D-R1	116.5 D-R1	48.329 D-R1	1:03.582 D-R1	32.562 D-R1	23.113 D-R1
7	Volkswagen Rabbit GTI	Ray Elliott	HP	13	2:55.874 B-R1	2:54.729	3:00.864 B-Q2	2:55.874 B-R1	2:56.586 B-R1	+1.645 B-R1	110.6 B-Q2, B-R1	51.316 B-R1	1:05.478 B-R1	34.047 B-R1	23.888 B-R1
8	Mini Cooper	Jacob Clark	HP	27	2:55.979 D-R1	2:55.689	3:55.585 B-Q1	2:55.979 D-R1	2:57.809 D-R1	+2.245 D-R1	108.3 D-R1	51.068 D-R1	1:05.948 D-R1	34.716 D-R1	23.957 D-R1
9	Volkswagen Golf	William Trainer 2+ cars >115%	HP	97	3:02.495 B-R2	3:01.331	3:39.815 B-Q1	3:02.495 B-R2	3:07.077 B-R2	+4.757 B-R2	108.6 B-R2	51.926 B-R1	1:08.991 B-R2	35.962 B-R1	24.452 B-R1
10	Fiat X1/9	Brayden Connolly >115%	HP	12	3:25.997 D-R1	3:25.997		3:25.997 D-R1			114.0 D-R1	54.162 D-R1	1:16.051 D-R1	40.677 D-R1	38.410 D-R1

One row per driver and car (a driver who changed cars has a row for each). Each cell is that driver's best in that car across the selected events, with the session it was set in. Best 5-lap stint is the mean of the driver's quickest five consecutive race laps, and consistency is how far their median race lap sat behind their best in that race (small is a driver who does it every lap); both come from the race with the best stint. The fastest in each column is purple, and a car whose best lap is more than 115% of the fastest in its class is greyed (marked ">115%" beside the driver) and left out of the colour scale. Click a column to sort, a row to highlight it. Theoretical lap is the sum of the best sectors, whichever laps they came from, and never slower than the best lap (where a car's fastest laps were recorded without sector times, its best lap is used). The 115% mark is about the car's best lap only: a car whose best lap is within 115% of the fastest in its class is never marked. Greyed sectors with no theoretical lap mean the sector times on file do not add up to a believable lap. Letters refer to the events above; Q is qualifying, R a race.

Sectors

S1 SF → I4AT 1.28 mi
S2 I4AT → I11 1.39 mi
S3 I11 → I13A 0.83 mi
S4 I13A → SF 0.53 mi
SF Spd SF → SFT 0.02 mi
Spd I4AT → I4A 0.02 mi

Sectors are numbered in lap order from start/finish, whatever each event's timing called them; the loop names are SCCA timing's.

By car

Car	Class	Drivers	Lap	Qual	Race	Trap	S1	S2	S3	S4
Triumph Spitfire	HP	1	2:37.567Steve Sargis	2:37.567Steve Sargis	2:38.811Steve Sargis	124.3Steve Sargis	45.353Steve Sargis	59.514Steve Sargis	30.507Steve Sargis	21.439Steve Sargis
Volkswagen GLI	HP	1	2:41.468Chris Schaafsma	2:42.681Chris Schaafsma	2:41.468Chris Schaafsma	121.1Chris Schaafsma	46.791Chris Schaafsma	1:01.221Chris Schaafsma	31.515Chris Schaafsma	21.648Chris Schaafsma
Fiat X 1/9	HP	2	2:41.613Matt Brannon		2:41.613Matt Brannon	118.7Matt Brannon	46.648Matt Brannon	1:00.758Matt Brannon	31.387Matt Brannon	22.228Matt Brannon
Fiat X 1/9	HP	1	2:41.613Matt Brannon		2:41.613Matt Brannon	118.7Matt Brannon	46.648Matt Brannon	1:00.758Matt Brannon	31.387Matt Brannon	22.228Matt Brannon
Fiat X1/9	HP	1	3:25.997Brayden Connolly		3:25.997Brayden Connolly	114.0Brayden Connolly	54.162Brayden Connolly	1:16.051Brayden Connolly	40.677Brayden Connolly	38.410Brayden Connolly
Honda Civic Si	HP	1	2:42.631Greg Gauper	2:44.056Greg Gauper	2:42.631Greg Gauper	119.4Greg Gauper	46.910Greg Gauper	1:01.402Greg Gauper	31.757Greg Gauper	21.914Greg Gauper
Mini Cooper	HP	2	2:45.095Robert Bax	2:47.146Robert Bax	2:45.095Robert Bax	117.1Robert Bax	47.728Robert Bax	1:02.308Robert Bax	32.373Robert Bax	22.302Robert Bax
Volkswagen Scirocco	HP	1	2:48.685William Trainer		2:48.685William Trainer	116.5William Trainer	48.329William Trainer	1:03.582William Trainer	32.562William Trainer	23.113William Trainer
Volkswagen Rabbit GTI	HP	1	2:55.874Ray Elliott	3:00.864Ray Elliott	2:55.874Ray Elliott	110.6Ray Elliott	51.316Ray Elliott	1:05.478Ray Elliott	34.047Ray Elliott	23.888Ray Elliott
Volkswagen Golf	HP	1	3:02.495William Trainer	3:39.815William Trainer	3:02.495William Trainer	108.6William Trainer	51.926William Trainer	1:08.991William Trainer	35.962William Trainer	24.452William Trainer

The best any driver of each car managed across the selected events, with who set it. Spellings and model years of the same car are grouped; click a row marked ▸ to see each version. Grouping is worked out from the names, so tell us if two cars are wrongly merged or split.

Rule changes between these events

June Sprints 2025 → June Sprints 2026 2025-06-06 to 2026-06-05

2025-07-01 HP BMW Z4 update

#38490 from Bryce McGuire · Rule change · TB 25-07 (2025-07 Fastrack)

slowerEP BMW Z4 03-05 restricted to 52mm flat plate intake restrictor.

In EP Spec Lines, BMW Z4 (03-05), add to Notes the following:
“52mm Flat Plate Intake Restrictor.”

2025-07-01 HP EP Fiat 124 Spider Competition Adjustment Request

#38498 from John Baucom · Rule change · TB 25-07 (2025-07 Fastrack)

fasterEP Fiat 124 Spider 1600 & 2000 weight drops 50 lbs to 2000; carburetors gain 2mm chokes to 36mm.

In EP Spec Lines, Fiat 124 Sport Spider 1600 & 124 Spider 2000, change as follows:
Weight: "~~2050~~ 2000"
Carburetor No. & Type: "(2) Weber 40 IDF-40IFI, (2) Solex C40P116, 34 36mm choke(s) req’d, (2) Weber 45DCOE w/ 34 36 mm
choke(s) on I.R. manifold or fuel injection."

2025-10-01 HP HP Plymouth Arrow spec omission

#38995 from Production Committee · Rule change · TB 25-10 (2025-10 Fastrack)

neutralHP Plymouth Arrow transmission max speeds clarified to 4 or 5.

In HP Spec Lines, Plymouth Arrow (76-80), add the following wording to Trans. Speeds(max):
"4 or 5"

2025-10-01 HP Add Wheel Diameter to Appendix G

#39008 from Production Committee · Rule change · TB 25-10 (2025-10 Fastrack)

neutralEP, FP, HP wheel diameter added to Appendix G as absolute maximum specification.

In Appendix G.2.3, change as follows:
"Rim width and diameter are is absolute maximums."

2025-10-01 HP Add TB ID tolerance to general Prod rules

#39009 from Production Committee · Rule change · TB 25-10 (2025-10 Fastrack)

neutralEP, FP, HP throttle body inside dimensions must remain stock with +/-.25mm tolerance; butterfly dimensions stock in FP, HP only.

In GCR, Section 9.1.5.E., change as follows:
9.1.5.E.1.b.4: "The inside dimensions of the throttle body casting/housing (as measured at the throttle butterfly) must remain
stock (tolerance of +/-.25mm), but the throttle body can otherwise be ported and polished."
9.1.5.E.2.b.4: "The inside dimensions of the throttle body casting/housing and all dimensions of the throttle butterfly must
remain stock (tolerance of +/-.25mm)."

2025-11-01 HP Please Lower Weight of 280Z

#38871 from Matthew Miller · Rule change · TB 25-09 (2025-09 Fastrack)

fasterEP Nissan 280Z minimum weight reduced from 2560 to 2400 lbs.

In EP Spec Lines, Nissan 280Z, change Weight (lbs) as follows:
"(Effective 11/1/2025) ~~2560~~ 2400
*~~2624~~ 2460
**~~2688~~ 2520"

2025-11-01 HP Miata Weight Adjustment Follow Up

#38949 from Don Tucker · Rule change · TB 25-10 (2025-10 Fastrack)

fasterEP Mazda MX-5 1.8L 90-97 weight reduced to 2125 lbs from 2150 lbs.

In EP Spec Lines, Mazda MX-5 / Miata 1.8L (90-97), Effective 11/1/2025 make the following weight change:
"~~2150~~ 2125"

2025-11-01 HP Weight Break for 1098 Midget / Sprite

#38970 from Kendall Jones · Rule change · TB 25-10 (2025-10 Fastrack)

fasterHP Austin-Healey Sprite/Midget 1098cc minimum weight drops 80 lbs to 1550.

In HP Spec Lines, Austin-Healey Sprite/Midget 1098cc, Effective 11/1/2025make the following weight change:
"~~1630~~ 1550"

2025-11-01 HP HP Volvo 142 spec omission

#38994 from Production Committee · Rule change · TB 25-10 (2025-10 Fastrack)

slowerHP Volvo 142/142E gains compression ratio limit 12.0:1 and valve lift limit .425".

In HP Spec Lines, Volvo 142/142E P-1800 Engine, Effective 11/1/2025 add the following wording to Notes:
"Comp. Ratio limited to 12.0:1. Valve lift limited to .425”."

2025-11-01 HP HP Mini DOHC 1.6

#38996 from Production Committee · Rule change · TB 25-10 (2025-10 Fastrack)

slowerHP Mini Cooper 07-15 valve lift reduced to .390", from .450".

In HP Spec Lines, Mini Cooper (07-13) (includes 09-15 convertible and 12-15 Coupe), Effective 11/1/2025 make the following
changes to the Notes:
"Compression ratio limited to 11.0:1, Valve lift limited to ~~.450”~~.390"."

2025-11-01 HP Add to Rabbit description

#39019 from Production Committee · Rule change · TB 25-11 (2025-11 Fastrack)

neutralFP and HP Volkswagen Rabbit descriptions updated: Convertible changed to Cabriolet in FP; Cabriolet added to three HP engine variants.

In FP Spec Lines, make the following spec line correction:
"Volkswagen Rabbit (Includes ~~Convertible~~ Cabriolet)"
In HP Spec Lines, make the following spec line correction:
"Volkswagen Rabbit 1588 (Includes Cabriolet)"
"Volkswagen Rabbit 1715 (Includes Cabriolet)"
"Volkswagen Rabbit 1780 (Includes Cabriolet)"

2025-11-01 HP Clean-up 9.1.5.E.7e

#39025 from Production Committee · Rule change · TB 25-11 (2025-11 Fastrack)

neutralEP, FP, HP: rear drum brake to disc conversion clarified; rotors solid, diameter limited to largest front rotor permitted.

In GCR, Section 9.1.5.E.7., change as follows:
"e. Cars fitted with rear drum brakes, can convert to rear disc brakes without penalty. N~~ote that the “Brakes Std.” and “Brakes~~
~~Alt.” listings on a vehicle’s spec line do not prohibit a car that was fitted with rear drum brakes stock, from converting to rear~~
~~disc brakes under this rule~~. When converting from rear drum brakes to rear disc brakes:
1. Rear brake rotors must be solid and can be no larger in diameter than the largest permitted front brake rotor, as defined on
the vehicle’s spec line.
2. Rear calipers and mounting brackets are unrestricted but must be made of a ferrous or aluminum material. ~~The standard and~~
~~alternate brake listings on a vehicle’s specification line, does not prohibit a car that was fitted with rear drum brakes as stock~~

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~~from converting to rear disc brakes under this rule.~~
3. The “Brakes Std.” and “Brakes Alt.” listings on a vehicle’s spec line do not prohibit a car that was fitted with rear drum brakes
as stock from converting to rear disc brakes under this rule."

2025-11-01 HP Add TB size to Ford Mustang (94-98) Spec Line

#39130 from Production Committee · Rule change · TB 25-11 (2025-11 Fastrack)

neutralEP Ford Mustang (94-98) fuel injected throttle body inside diameter specified at 60.

In EP Spec Lines, Ford Mustang (94-98) add the following to the Fuel Injected Equipped Throttle Body Inside Diameter column:
"60"

2025-12-01 HP Request to Re-Classsify Datsun SPL-311 to HP from FP

#39116 from Robert Heatwole · Rule change · TB 25-12 (2025-12 Fastrack)

neutralDatsun SPL-311 newly classified to HP at 2050 lbs with 1595cc OHV iron engine and specified carburetors.

In HP Spec Lines, classify Nissan/Datsun SPL 311 as follows:

A specification table follows in the original; it is not shown here.

2025-12-01 HP TR2 Notes E&O

#39180 from Anthony Parker · Rule change · TB 25-12 (2025-12 Fastrack)

unclearEP Triumph TR2-TR4A allows 5-speed gearbox without overdrive; removes Weber carb and weight specification.

In EP Spec Lines, Triumph TR2, 3, 3A, 4, 4A, TR4, TR4A, IRS, make the following change to the Notes:
"Front apron assembly may be made of alternate material. ~~Three (3) Weber 40 DCOE on IR manifold with 28mm chokes @ 1990~~
~~lbs.~~ Laycock overdrive, may use 5 speed gearbox without overdrive."

2025-12-01 HP Balance of Power

#39187 from Jim Simaras · Rule change · TB 25-12 (2025-12 Fastrack)

slowerEP BMW Z3 2.5L restrictor reduced 52mm to 50mm, weight increased to 2550 lbs base; five other BMW models get smaller restrictors.

In EP Spec Lines, make the following changes to Restrictors:
BMW Z3 2.5L: "~~52mm~~ 50mm Flat Plate Intake Restrictor"
BMW Z3 2.8L (97-00): "~~55mm~~ 53mm Flat Plate Intake Restrictor"
BMW 328i/is E36 (96-99): "~~58mm~~ 55mm Flat Plate Intake Restrictor"
BMW 328i/ci E46 (01-06): "~~58mm~~ 55mm Flat Plate Intake Restrictor"
BMW 325i/is (E46) (01-06): "~~56mm~~ 53mm Flat Plate Intake Restrictor"
BMW 325is M-Technic (1994): "~~56mm~~ 53mm Flat Plate Intake Restrictor"
BMW 325i/is E-36 (92-95): "~~56mm~~ 53mm Flat Plate Intake Restrictor"

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In EP Spec Lines, BMW Z3 2.5L, change Weight as follows:
"~~2500~~ 2550
*~~2563~~ 2614
**~~2625~~ 2678"

2025-12-01 HP Alternative BOP Request for 84-87 Honda CRX/Civic

#39223 from Bill Lamkin · Rule change · TB 25-12 (2025-12 Fastrack)

fasterHP Honda Civic and CRX models get wider 13-inch wheels: 6 to 7 inches.

In HP Spec Lines, change Wheels as follows:
Honda Civic: "13 x 6 7"
Honda Civic DX (92-95): "13 x 6 7"
Honda Civic/Si (84-87): "13 x 6 7"
Honda Civic 1.5 (88-91): "13 x 6 7"
Honda CRX/Si (84-87): "13 x 6 7"
Honda CRX 1.5(88-91): "13 x 67"

2026-01-01 HP E/O: Improve Consistency of the Spec Lines

#39500 from Robert Bax · Rule change · TB 26-01 (2026-01 Fastrack)

unclearHP Toyota MR-2 1.6L (85-89) compression ratio set to 11.0:1.

In HP Spec Line, Toyota MR-2 1.6L (85-89), change Comp. Ratio as follows:
"11.0:1"

2026-01-01 HP Request to Reclassify BMW 2002 Into H Production

#39567 from Jonathan Kinberg · Rule change · TB 26-01 (2026-01 Fastrack)

neutralBMW 2002 newly classified to H Production at 2350 lbs with 1990cc iron block, 40 DCNF carburetor, 11.0:1 compression.

In HP Spec Lines, classify BMW 2002, as follows:

A specification table follows in the original; it is not shown here.

2026-02-01 HP Triumph Spitfire 1296cc Compression Ratio Increase to 12:1

#39589 from Neil Verity · Rule change · TB 26-02 (2026-02 Fastrack)

fasterHP Triumph Spitfire 1296cc compression ratio increases from 11.0 to 12.0:1.

In HP Spec Lines, make the following spec line changes:
Triumph Spitfire:
Carburetion
"Valves: (I) 33.0/(1.30) (E) 29.7/(1.17)
Comp. ratio ~~11.0~~ 12.0:1, Valve lift .450”
Trans. Speeds: 4"
Triumph Spitfire Mk. III & IV 1500:
Carburetion

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"1300 Valves: (I) 33.0/(1.30) (E) 29.7/(1.17)
1500 Valves: (I) 36.6/(1.44) (E) 29.7/(1.17)
1300: Comp. ratio 12.0:1, Valve lift .450”
1500: Comp. ratio 11.0:1, Valve lift .450”
Trans. Speeds: 4"

2026-03-01 HP Clarification On Oil Cooler Ducting

#39604 from Chuck Allard · Rule change · TB 26-03 (2026-03 Fastrack)

neutralHP class mid and rear engine cars may add single inlet and outlet holes for oil cooler ducting in front bodywork.

In GCR, Section 9.1.5.E.6.g.4, add the following:
"On mid and rear engine cars, a single inlet hole may be cut in the front bodywork and a single outlet hole may be cut in the front
trunk floor or a wheel well, for the sole purpose of ducting air to a single engine oil cooler. The size of these holes may be no
larger than the area of the oil cooler itself."

2026-03-01 HP Honda Fit 2015-19 Error in Engine Classification

#39853 from Jose Fabian · Rule change · TB 26-03 (2026-03 Fastrack)

neutralHP Honda Fit 2015-19 engine reclassified from SOHC to DOHC.

In HP Spec Lines, Honda Fit (15-19), change Engine Type Mat’l Block/Head as follows:
"4 Cyl. ~~SOHC~~ DOHC"

2026-05-01 HP Miata track width - errors and omissions

#39976 from Production Committee · Rule change · TB 26-05 (2026-05 Fastrack)

neutralEP Mazda MX-5 94-97 front track widens to 1516 mm (59.7 in.), rear to 1534 mm (60.4 in.).

In EP Spec Lines, Mazda MX-5 / Miata (94-97), change Track (F/R) mm/(in.) as follows:
Track (F/R) mm/(in.): ~~"1483/1509 (58.4/59.4)~~ 1516/1534(59.7/60.4)"

2026-05-01 HP Triumph GT6 Spec Change.

#40098 from Anthony Parker · Rule change · TB 26-05 (2026-05 Fastrack)

fasterEP Triumph GT6 auto-type drivetrain choke increases from 44mm to 45mm.

In EP Spec Lines, Triumph GT6, change the "Drivetrain Notes" as follows:
"(2) auto-type w/44 45mm choke(s)"

2026-05-01 HP Request to Classify BMW E21 320i

#40110 from Doug DeRonne · Rule change · TB 26-05 (2026-05 Fastrack)

neutralBMW 320i/is E21 (80-83) newly classified in HP Spec Lines.

In HP Spec Lines, classify BMW 320i/is (E21) (80-83) as follows:

2026-05-01 HP BMW 318is 84-85 engine displacement correction

#40116 from Production Committee · Rule change · TB 26-05 (2026-05 Fastrack)

neutralHP BMW 318is 84-85 displacement corrected from 1797 to 1767 cc.

In HP Spec Lines, BMW 318i/is E30 (84-85), change Displacement Bore x Stroke mm/ (in.) as follows:
"~~1797~~ 1767 89.0 x 71.0 (3.50x2.80)"

2026-06-01 HP Austin Healy Sprite/ MG Midget 1275 Induction Change Request

#40213 from Michael MILLER · Rule change · TB 26-06 (2026-06 Fastrack)

fasterHP Austin-Healey Sprite and MG Midget 1275 permitted to use 1.5" SU carbs on alternate manifold with narrowed balance tube.

In HP Spec Lines, Austin-Healey Sprite Mk I, II, III, IV MG Midget Mk I, II, III, IV & 1500, change Drivetrain Notes as follows:
"(2) 1.25” SU w/ no modifications
(2) 1.5” SU w/ no modifications (on alternate manifold)
Valves: (I) 33.0/(1.30) (E) 29.5/(1.16)
Comp. ratio 12.0:1, Valve lift .450”
Trans. Speeds: 4
Drivetrain Level 2 preparation only.
Listed spec line weight does not change with alternate or stock transmission.

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Alternate intake manifold, with narrowed balance tube to fit 1275cc head, permitted with use of 1.5” SU carbs (original P/N’s
12H708, 12H1398, 12H2568)."
In HP Spec Lines, Austin-Healey Sprite Mk I, II, III, IV MG Midget (ALL), change Drivetrain Notes as follows:
"(2) 1.25” SU w/ no modifications
(2) 1.5” SU w/ no modifications (on alternate manifold)
Valves: (I) 33.0/(1.30) (E) 29.5/(1.16)
Comp. ratio 12.0:1, Valve lift .450”
Trans. Speeds: 4
Alternate intake manifold, with narrowed balance tube to fit 1275cc head, permitted with use of 1.5” SU carbs (original P/N’s
12H708, 12H1398, 12H2568)."

What the rules allowed changed as listed; this does not say what any particular car ran.