Sectors are not comparable across all of these events. Sector times and the theoretical lap use Runoffs 2022, Runoffs 2023 only. Runoffs 2019 (sectors cut at different points) counts towards whole-lap times and trap speed only.
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 NT SF → Bridge 1.03 mi
S2 Bridge → ST SF 0.90 mi
S3 ST SF → NT SF 1.35 mi
SPd In → Out 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
Honda Civic Si
HP
10
2:11.803Vesa Silegren
2:15.204Vesa Silegren
2:11.803Vesa Silegren
123.7John Fine
46.784John Fine
35.512John Fine
50.637John Fine
Honda CRX (1987)
HP
1
2:11.803Vesa Silegren
2:15.204Vesa Silegren
2:11.803Vesa Silegren
119.2Vesa Silegren
47.862Vesa Silegren
36.126Vesa Silegren
52.087Vesa Silegren
Honda Civic SI (1984)
HP
1
2:13.545John Fine
2:27.410John Fine
2:23.814John Fine
123.7John Fine
46.784John Fine
35.512John Fine
50.637John Fine
Honda Civic Si (1986)
HP
2
2:14.376Enrik Benazic
2:16.346Enrik Benazic
2:15.412Enrik Benazic
121.1Enrik Benazic
47.167Enrik Benazic
36.040Enrik Benazic
50.811Enrik Benazic
Honda CRX Si (1987)
HP
1
2:15.211Will Perry
2:15.908Will Perry
2:15.211Will Perry
119.9Will Perry
48.037Will Perry
35.732Will Perry
51.642Will Perry
Honda Civic Si
HP
1
2:16.516Christopher Riley Salyer
2:18.074Christopher Riley Salyer
2:16.516Christopher Riley Salyer
116.4Christopher Riley Salyer
Honda Civic Si (1984)
HP
1
2:18.995Greg Gauper
2:19.616Greg Gauper
2:18.995Greg Gauper
117.1Greg Gauper
48.694Greg Gauper
36.816Greg Gauper
52.489Greg Gauper
Honda CRX
HP
3
2:22.676Rob Horrell
2:22.676Rob Horrell
2:23.166Rob Horrell
119.6Rob Horrell
50.522Ryan McBain
38.769Ryan McBain
55.203Ryan McBain
Triumph Spitfire
HP
3
2:13.952Steve Sargis
2:13.952Steve Sargis
2:15.725Steve Sargis
119.0Steve Sargis
47.047Steve Sargis
35.298Steve Sargis
50.874Steve Sargis
Triumph Spitfire (1975)
HP
1
2:13.952Steve Sargis
2:13.952Steve Sargis
2:15.725Steve Sargis
119.0Steve Sargis
47.047Steve Sargis
35.298Steve Sargis
50.874Steve Sargis
Triumph Spitfire (1977)
HP
1
2:16.650Tom Broring
2:19.316Tom Broring
2:16.650Tom Broring
117.4Tom Broring
49.710Tom Broring
38.593Tom Broring
54.738Tom Broring
Triumph Spitfire
HP
1
2:21.034Andrew Wright
2:21.034Andrew Wright
2:22.633Andrew Wright
115.2Andrew Wright
49.697Andrew Wright
37.822Andrew Wright
53.401Andrew Wright
Volkswagen Golf
HP
7
2:14.681Chris Schaafsma
2:15.220Chris Schaafsma
2:14.681Chris Schaafsma
120.2Chris Schaafsma
46.950Chris Schaafsma
35.692Chris Schaafsma
50.840Chris Schaafsma
Volkswagen Golf (1986)
HP
1
2:14.681Chris Schaafsma
2:15.220Chris Schaafsma
2:14.681Chris Schaafsma
120.2Chris Schaafsma
46.950Chris Schaafsma
35.692Chris Schaafsma
50.840Chris Schaafsma
Volkswagen Golf (1985)
HP
2
2:15.742Chris W Albin
2:15.742Chris W Albin
2:16.310Chris W Albin
118.7Chris W Albin
47.426Chris W Albin
36.247Chris W Albin
52.458Chris W Albin
Volkswagen Golf
HP
3
2:15.939Christopher Schaafsma
2:15.939Christopher Schaafsma
2:22.099Mike Kelley
116.9Christopher Schaafsma
49.968David Boles
38.400David Boles
54.141David Boles
Volkswagen Golf (1987)
HP
1
2:31.582Taylor Hyatt
2:31.582Taylor Hyatt
105.6Taylor Hyatt
52.964Taylor Hyatt
40.361Taylor Hyatt
58.257Taylor Hyatt
MG Midget
HP
4
2:15.062Ron Bartell
2:15.503Ron Bartell
2:15.062Ron Bartell
116.2Ron Bartell
48.920Kendall Jones
37.509Kendall Jones
54.187Kendall Jones
MG Midget
HP
2
2:15.062Ron Bartell
2:15.503Ron Bartell
2:15.062Ron Bartell
116.2Ron Bartell
MG Midget (1976)
HP
1
2:21.611Kendall Jones
2:29.441Kendall Jones
2:21.611Kendall Jones
110.8Kendall Jones
48.920Kendall Jones
37.509Kendall Jones
54.187Kendall Jones
MG Midget (1970)
HP
1
2:24.531Jack Schulz
2:24.893Jack Schulz
2:24.531Jack Schulz
112.2Jack Schulz
49.498Jack Schulz
38.018Jack Schulz
54.627Jack Schulz
Austin-Healey Sprite
HP
7
2:16.588Eric Vickerman
2:16.588Eric Vickerman
2:17.016Eric Vickerman
115.9Michael H Miller
47.931Eric Vickerman
36.221Eric Vickerman
53.003Eric Vickerman
Austin-Healey Sprite
HP
5
2:16.588Eric Vickerman
2:16.588Eric Vickerman
2:17.016Eric Vickerman
115.9Michael H Miller
47.931Eric Vickerman
36.221Eric Vickerman
53.003Eric Vickerman
Austin-Healey Sprite (1966)
HP
1
2:22.912Michael Miller
2:22.912Michael Miller
109.8Michael Miller
49.281Michael Miller
37.667Michael Miller
55.126Michael Miller
Austin-Healey Sprite (1962)
HP
1
2:24.254Jerry Oleson
2:24.254Jerry Oleson
114.1Jerry Oleson
49.518Jerry Oleson
38.786Jerry Oleson
54.357Jerry Oleson
Volkswagen Rabbit
HP
3
2:17.157Jason LaManna
2:20.342Jason LaManna
2:17.157Jason LaManna
116.1Jason LaManna
47.952Jason LaManna
36.363Jason LaManna
52.753Jason LaManna
Volkswagen Rabbit (1984)
HP
1
2:17.157Jason LaManna
2:20.342Jason LaManna
2:17.157Jason LaManna
116.1Jason LaManna
47.952Jason LaManna
36.363Jason LaManna
52.753Jason LaManna
Volkswagen Rabbit (1982)
HP
1
2:23.272Vincent LaManna
2:23.272Vincent LaManna
2:24.062Vincent LaManna
112.2Vincent LaManna
49.694Vincent LaManna
38.383Vincent LaManna
55.274Vincent LaManna
Volkswagen Rabbit
HP
1
2:26.559Carolyn Bayer-Broring
2:29.309Carolyn Bayer-Broring
2:26.559Carolyn Bayer-Broring
111.6Carolyn Bayer-Broring
Volkswagen Scirocco
HP
4
2:17.300Mike Ogren
2:19.143William Trainer
2:17.300Mike Ogren
124.9William Trainer
48.112Mike Ogren
36.568Mike Ogren
52.579Mike Ogren
Volkswagen Scirocco (1987)
HP
2
2:17.300Mike Ogren
2:19.143William Trainer
2:17.300Mike Ogren
124.9William Trainer
48.112Mike Ogren
36.568Mike Ogren
52.579Mike Ogren
Volkswagen Scirocco (1985)
HP
1
2:20.647Scott Hileman
2:20.647Scott Hileman
113.8Scott Hileman
49.111Scott Hileman
37.480Scott Hileman
53.742Scott Hileman
Volkswagen Scirocco (1976)
HP
1
2:23.333Joe Camilleri
2:23.333Joe Camilleri
2:23.445Joe Camilleri
116.2Joe Camilleri
49.824Joe Camilleri
38.612Joe Camilleri
54.812Joe Camilleri
Toyota MR-2
HP
1
2:22.525Greg Amy
2:22.799Greg Amy
2:22.525Greg Amy
116.8Greg Amy
50.034Greg Amy
37.746Greg Amy
53.730Greg Amy
Honda Fit
HP
2
2:22.585Edward Werry
2:23.955Edward Werry
2:22.585Edward Werry
112.5Edward Werry
49.673Edward Werry
37.731Edward Werry
55.021Edward Werry
*Orange Honda Fit
HP
1
2:22.585Edward Werry
2:23.955Edward Werry
2:22.585Edward Werry
112.5Edward Werry
49.673Edward Werry
37.731Edward Werry
55.021Edward Werry
Honda Fit
HP
1
2:35.481David Yeager
2:37.253David Yeager
2:35.481David Yeager
105.7David Yeager
Mini Cooper
HP
2
2:22.644Leanna Wright
2:22.644Leanna Wright
2:24.762Leanna Wright
114.8Leanna Wright
50.368Leanna Wright
37.354Leanna Wright
53.986Leanna Wright
Nissan PL510
HP
1
2:22.707Brian Downey
2:22.835Brian Downey
2:22.707Brian Downey
114.4Brian Downey
49.910Brian Downey
37.636Brian Downey
54.356Brian Downey
MG B
HP
1
2:25.006Jack Schulz
2:25.006Jack Schulz
2:25.576Jack Schulz
107.4Jack Schulz
Nissan 1200
HP
1
2:30.908Ian Sullivan
2:32.319Ian Sullivan
2:30.908Ian Sullivan
99.6Ian Sullivan
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
Runoffs 2019 → Runoffs 2022 2019-10-05 to 2022-09-24
HP Request to Correct Track of 1988-91 Honda Civic
HP Re-organize Prep2 Cylinder Head Rules for Clarity & Consistency
#27661 from Production Committee · Rule change · TB 19-12 (2019-12 Fastrack)
neutralEP, FP, HP cylinder head rules reorganized for clarity; no performance change.
In Production, GCR section 9.1.5.E.2.e, delete section and replace as follows: e. The Cylinder Head can only be modified: 1. To install an alternate camshaft, and/or adjustable cam gears. 2. To port match on the port mating surface to a depth of no more than one inch. 3. To facilitate the installation of permitted alternate components, provided the modification serves no other function. 4. To achieve the maximum specified compression ratio by the machining of the deck surface. 5. To completely plug the holes resulting from the removal of EGR valves and air nozzles. The plugs must
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serve no other purpose. 6. To completely plug the stock fuel injection ports in the cylinder head, if the stock fuel injection is removed and carburetors are utilized. The plugs must serve no other purpose. 7. To utilize O-rings to replace or supplement a cylinder head gasket. 8. To fit valve seats. Valve seats are unrestricted. Valve seat angles are unrestricted. The valve seat insert can be no taller than one half inch. "e. Cylinder Head 1. The cylinder head may be modified to allow installation of permitted alternate components, provided the modification serves no other purpose. 2. Valve seats and valve seat angles are unrestricted. The valve seat may be no taller that one half inch. 3. The cylinder head deck surface may be machined to achieve the specified compression ratio and to allow the installation of o-rings to replace or supplement the cylinder head gasket. 4. Holes resulting from the removal of EGR valves, air nozzles and fuel injectors (if the stock fuel injection system is removed and carburetors substituted) may be plugged, provided the plugs serve no other purpose. 5. Cylinder head ports may be matched to the intake manifold to a depth of no more than 1 inch from the port mating surface."
neutralHP Mazda2 updates to 11-14, Honda Fit to 15-19, Mini Cooper to 07-13.
In HP, Mazda2 (07-11), make change as follows: (07-11) (11-14)" In HP, Honda Fit (2015), make change as follows: (2015) (15-19)" In HP, Mini Cooper (07-11), make change as follows: (07-11) (07-13)"
neutralHP Porsche 914-4 1.8L now allows 2-stage dry sump if cam-driven and OEM-located.
In HP, Porsche 914-4 (1.8L), add to notes as follows: "A 2-stage dry sump is allowed, but it must be cam-driven only and mounted in the same location as the OEM oil pump."
HP Please Allow Alternate Rear Axle Housing for RWD Toyota Corolla
#27854 from Mike Ogren · Rule change · TB 20-01 (2020-01 Fastrack)
neutralHP Toyota Corolla 71-74 permitted to use rear axle housing from 84-87 Corolla.
In HP, Toyota Corolla (71-74), add to notes as follows: "Rear axle housing from the 84-87 Corolla is permitted."
HP Request to List Mazda Miata Throttle Body Size
#27907 from STEVE SARGIS · Rule change · TB 20-01 (2020-01 Fastrack)
neutralFP and EP Mazda Miata models standardized to 55mm throttle body diameter; brake spec clarified.
In FP, Mazda Miata 1.6L (90-97), make changes as follows: Brakes Std.: "Factory spec @ all 4 wheels (F) 235 x 18 Vented Disc (R) 231 x 9 Solid Disc" Throttle body Diameter: "stock throttle body I.D. 55mm" In EP, Mazda MX-5/Miata 1.6L (-1993), make changes as follows: Brakes Std.: "(F) 235 (9.3) x 18 Vented Disc (R) 231 (9.1) x 9 Solid Disc"
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Throttle body Diameter: "stock throttle body I.D. 55mm" In EP, Mazda MX-5/Miata 1.8L (90-97), make changes as follows: Brakes Std.: "(F) 235 ( 9.3) x 18 Vented Disc (R) 231 (9.1) x 9 Solid Disc" Throttle body Diameter: "stock throttle body I.D. 55mm" In EP, Mazda MX-5/Miata (94-97), make changes as follows: Brakes Std.: "(F) 235 x 18 Vented Disc (R) 231 x 9 Solid Disc" Throttle body Diameter: "stock throttle body I.D. 55mm" In EP, Mazda MX-5/Miata (99-03), make changes as follows: Brakes Std.: "(F) 235 (9.3) x 18 Vented Disc (R) 231 (9.1) x 9 Solid Disc" Throttle body Diameter: "stock throttle body I.D. 55mm"
HP HP VW Rabbit Convertible 1.6L #1922 and 32mm chokes
#27917 from Jack Banha · Rule change · TB 20-01 (2020-01 Fastrack)
fasterHP VW Rabbit Convertible and Scirocco 1.6L lose 50 lbs minimum weight, to 1735.
#27934 from Ian Sullivan · Rule change · TB 20-02 (2020-02 Fastrack)
fasterHP Datsun 1200 carburetor choke size increases from 26mm to 30mm.
In HP Spec Lines, Nissan/Datsun 1200, make changes as follows in Carburetor No. & Type: "(1) 40 DCN, DCNF, IDF, 26mm choke(s) req’d. w/ 30mm choke(s), (2) auto type side draft w/ 30mm choke(s) on I.R. manifold."
Applies to Nissan 1200 on this page: Ian Sullivan
HP Letter #27917
#28085 from Jack Banha · Rule change · TB 20-03 (2020-03 Fastrack)
neutralHP Volkswagen Rabbit and Scirocco 1588 remove 32mm choke requirement, clarify carburetor options and weight penalties.
In HP, Volkswagen Rabbit 1588 (includes Cabriolet /convertible), spec lines, change Carburetor. No & Type as follows: "(1) 40 DCN, DCNF w/ 32mm choke(s), or fuel injection. 32mm choke(s) req'd. (2) auto type side draft(s) w/ 32mm chokes at 90lbs penalty." In HP, Volkswagen Rabbit 1588 (includes Cabriolet /convertible), spec lines change Notes, as follows: "Compression ratio limited to 11.5:1, Valve lift limited to .450”. (2) auto type side draft carburetors with 32mm chokes permitted at weights of 1875/* 1922/** 1969. Mk2 VW front spindles, hubs and bearings are permitted."
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In HP, Volkswagen Scirocco 1588, spec lines, change Carburetor. No & Type as follows: "(1) 40 DCN, DCNF w/ 32mm choke(s), or fuel injection. 32mm choke(s) req'd. (2) auto type side draft(s) w/ 32mm chokes at 90lbs penalty." In HP, Volkswagen Scirocco 1588), spec lines, change Notes as follows: "Compression ratio limited to 11.5:1, Valve lift limited to .450”. (2) auto type side draft carburetors with 32mm chokes permitted at weights of 1875/* 1922/** 1969. Mk2 VW front spindles, hubs and bearings are permitted."
HP Request to Classify 2007 - 2013 Mini Cooper Convertible
#28111 from G. Brian Metcalf · Rule change · TB 20-03 (2020-03 Fastrack)
neutralHP Mini Cooper Convertible (07-13) newly classified; (05-08) convertible spec consolidated into main listing.
In HP, Mini Cooper (02-06), changes as follows: "(includes convertible)" In HP, Mini Cooper (07-13), changes as follows: "(includes convertible)" In HP, Mini Cooper (05-08), delete the spec as follows: "Mini Cooper Convertible (05-08)"
HP Allow HP Datsun 510 Under Level 2 to Utilize Datsun Z Brakes
#28121 from James Bell · Rule change · TB 20-03 (2020-03 Fastrack)
neutralHP Datsun 510 Level 2 brakes changed from factory spec to 9.1 disc front, 9.0 drum rear, allowing 240Z/260Z/280Z parts.
In HP, Nissan/Datsun PL510, make changes to the spec line as follows: Brakes: "Factory Spec @ all 4 wheels. (F) 9.1 Disc (R) 9.0 Drum" Brakes Alt: "Nissan/Datsun 240Z/260Z/280Z front rotors and calipers and rear aluminum drums are permitted." Notes: "Compression ratio limited to 12.0:1, Valve lift limited to .450”. (2) auto type side drafts w/ 32mm choke(s) on I.R. manifold allowed @ 2050 (*2101 **2153). Nissan/Datsun 240Z/260Z/280Z front rotors
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and calipers and rear aluminum drums are permitted."
HP Request to allow 40 DCOE carb for the Datsun 510
#28195 from James Bell · Rule change · TB 20-03 (2020-03 Fastrack)
In HP, Nissan/Datsun PL510, make changes to the spec line as follows: Carburetor No & Type: "(1) 40 DCN or, DCNF w/ 32mm choke(s),. 32mm choke(s) req'd, or (1) 36mm DCNVH. (2) auto type side draft(s) w/ 32mm choke(s) on I.R. manifold @ 90lbs penalty." Notes: "Compression ratio limited to 12.0:1, Valve lift limited to .450”. (2) auto type side drafts w/ 32mm choke(s) on I.R. manifold allowed @ 2050 (*2101 **2153). Nissan/Datsun 240Z/260Z/280Z front rotors and calipers and rear aluminum drums are permitted."
HP Request Ford Fiesta Weight Adjustment
#28337 from Brian Frank · Rule change · TB 20-03 (2020-03 Fastrack)
fasterHP Ford Fiesta 78-80 minimum weight drops 50 lbs to 1725; both asterisk tiers drop 51 lbs.
In HP, Ford Fiesta (78-80), changes weight as follows: "1775 1725 * 1819 1768 ** 1864 1811"
neutralEP Caterham 7 Spec Line removes redundant suspension note, clarifies engine prep limits and comp ratio to 10.0:1.
In EP, modify the "Notes" section of the "Lotus/Caterham 7 America" spec line as follows: "Level 2 suspension preparation. Engine is limited to IT preparation except modifications permitted in sections 9.1.5.E.2.e., 9.1.5.E.2.f, and 9.1.5.E.2.h. and f. Comp. Ratio limited to 10.0: 1, Valve lift limited to .380”." Note that the "Level 2 suspension preparation" limitation is already mandated by the fact that this is a "Prep Level 2" classified vehicle. Removal of that wording from the "Notes" section is purely due to redundancy, and not to change the allowed preparation.
HP Request to Classify 1990-1994 Mazda Protege
#28381 from Nick Leone · Rule change · TB 20-05 (2019-05 Fastrack)
neutral1990-1994 Mazda Protege classified in FP Pre at 2150–2258 lbs with 1839cc DOHC engine, fuel injection.
In FP, Classify the 90-94 Mazda Protege as follows:
A specification table follows in the original; it is not shown here.
HP Error in Mini Cooper Spec Line
#28713 from Frank Schwartz · Rule change · TB 20-05 (2019-05 Fastrack)
neutralHP Mini Cooper model year ranges for convertibles revised: 02-06 now includes 05-08, 07-13 now includes 09-15.
In HP Spec Lines, change as follows: "Mini Cooper (includes convertible) (02-06) (includes 05-08 convertible)" In HP Spec Lines, change as follows: "Mini Cooper (includes convertible) (07-13) (includes 09-15 convertible)"
HP BMW Cylinder Head Casting and Part Numbers
#28708 from Bill Lamkin · Rule change · TB 20-06 (2020-06 Fastrack)
slowerEP BMW 2.8L, 328i E36/E46, and 325i E36 blocks now iron only; 325i E46 aluminum only.
In EP, correct the following spec lines as shown: BMW Z3 2.5L, add to "Notes" section: "Cylinder head casting number 1738400 permitted with use of the allowed iron block (casting number 1748933-C)." BMW Z3 2.8L (97-00), modify "Block Mat'l" section: "Alum or Iron" BMW 328i/is E36 (96-99), modify "Block Mat'l" section: "Alum or Iron"
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BMW 328i/ci E46 (01-06), modify "Block Mat'l" section: "Alum or Iron" BMW 325i/is E46 (01-06), modify "Block Mat'l" section: "Alum or Iron" BMW 325i/is E36 (92-95), modify "Block Mat'l" section: "Alum or Iron"
HP Request to Classify Porsche 911 2.0L
#28456 from Richard Spritz · Rule change · TB 20-07 (2020-07 Fastrack)
neutralPorsche 911 S 67-68 classified in EP at three weight levels: 1800, 1845, or 1890 lbs.
In EP, classify the Porsche 911 S (67-68) as follows:
A specification table follows in the original; it is not shown here.
HP Request Dual Carbs for 1.8 VW GTI Mk1
#28922 from Tim Linerud · Rule change · TB 20-07 (2020-08 Fastrack)
Thank you for your letter, but this request is not recommended at this time. The vehicle in question is proven to be competitive as classed, it never came from the factory with a carburetor, and the stock fuel injection components are not difficult or expensive to obtain, so there is no justifiable reason to add this allowance to this vehicle's spec line.
HP EP BMW Z3 Rule Clarification
#28998 from Sam Moore · Rule change · TB 20-08 (2020-08 Fastrack)
neutralEP BMW Z3 2.5L iron block casting 1738566-C designation removed, wording clarification only.
In EP, BMW Z3 2.5L, make changes to the spec line as follows: "Cylinder head casting number 1738400 permitted with use of the allowed iron block (casting number 1748933 or 1738566-C).
HP 84-87 Toyota Corolla HP Wheel Diameter Allowance Proposal E&O
#29458 from Brian Harmer · Rule change · TB 20-10 (2020-10 Fastrack)
fasterHP 84-87 Toyota Corolla wheel diameter increases from 13 to 15 inches.
In HP, Spec Lines, Toyota Corolla (84-87), change Wheels as follows: "13 15 x 7"
HP Mk2 VW Consistency and Cleanup of FP and HP Spec Lines
#29195 from Christopher Schaafsma · Rule change · TB 20-12 (2020-12 Fastrack)
fasterFP Volkswagen Golf and Jetta 1.8 lose 50 lbs each, to 1900. HP Jetta GLI engine code removed.
In Production, Spec Lines, Change as follows: In FP: "Volkswagen Golf 1.8 (GTI, GT, GL) (85-92)" Weight: "1950 1900" In FP: "Volkswagen Jetta
HP Correct Wording for Level 1 and Level 2 Induction Systems
#29406 from Ron Bartell · Rule change · TB 20-12 (2020-12 Fastrack)
neutralEP, FP, HP Level 1 and Level 2 induction systems: clarified carburetor and fuel injection rules, jets/needles/rods unrestricted in Level 2.
In Production, GCR section 9.1.5.E.1.b.1, make changes as follows: "All inducted air must pass through the venturi(s) of the car’s carburetor(s). Any carburetor(s) with restricted venturi(s) must retain such venturi(s) in the original location within the carburetor. The throttle plate, shaft location, and bore diameter (as measured at the throttle plate) shall remain as specified. Carburetor jets, jet needles, metering rods and needle valves are unrestricted. Choke mechanisms, plates, rods, and actuating cables, wires, or hoses can be removed. The number and type of carburetors must not be changed from stock, unless otherwise specified by the vehicles spec line. In all other regards, standard and approved optional carburetor(s) are unrestricted. All single carbureted cars may fit a permitted optional carburetor. Where the use of one (1) 40 DCN, DCNF, IDF carburetor is
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specified, a permitted optional carburetor may be substituted. Permitted optional carburetors are:" In GCR section 9.1.5.E.1.b.4, make changes as follows: "Fuel injection: All inducted air must pass through the throttle body and be subject to control by the throttle butterfly. The stock throttle body casting/housing must be retained. The inside dimensions of the throttle body casting/housing (as measured at the throttle butterfly) and all dimensions of the throttle butterfly must remain stock, but . T the throttle body can otherwise be ported and polished. The dimensions of the throttle butterfly must remain stock. The throttle butterfly shaft shall not be relocated. The outside diameter of the portion of the throttle butterfly shaft located in the throttle body bore must be no smaller than stock. The contour of the interface between the throttle butterfly shaft and the butterfly must remain stock. The throttle butterfly and any throttle butterfly to shaft screws/bolts can be attached to the throttle butterfly shaft by any means including welding or brazing. Holes or slots can be created in the throttle butterfly for purposes of idle adjustment only. The number of injectors must remain stock. The mounting position and the injection point must be stock. Electronic fuel injection may be substituted for the stock type of fuel injection. In all other respects the fuel injection system is unrestricted." In GCR section 9.1.5.E.2.b.1, make changes as follows: "All inducted air must pass through the venturi(s) of the car’s carburetor(s). Carburetor jets, jet needles, metering rods and needle valves are unrestricted. Choke mechanisms, plates, rods, and actuating cables, wires, or hoses can be removed. The number and type of carburetors must not be changed from stock, unless otherwise specified by the vehicles spec line. In all other regards, standard and approved optional carburetor(s) must not be modified. All single carbureted cars may fit a permitted optional carburetor. Where the use of one (1) 40 DCN, DCNF, IDF carburetor is specified, a permitted optional carburetor may be substituted. Permitted optional carburetors are:"
HP Weight Reduction for Datsun Roadster
#29409 from Samuel Neave · Rule change · TB 20-12 (2020-12 Fastrack)
fasterEP Datsun SRL 311U Roadster minimum weight reduced to 1925 lbs from 2000 lbs.
In EP Spec Line, Nissan/Datsun SRL 311U Roadster, change Weight as follows: "2000 1925"
HP EP TR8 Adjustment
#29512 from Jeffrey Young · Rule change · TB 20-12 (2020-12 Fastrack)
fasterEP Triumph TR8 78-81 weight reduced from 2600 to 2500 lbs.
In EP Spec Lines, Triumph TR8 (78-81), change weight as follows: "2600 2500"
HP Alternate Front Brake Rotors and Calipers for EP AH 3000
neutralEP Austin-Healey 3000 Mk. I, II, III now allows TR-6 front calipers and discs as alternate.
In EP, Spec Lines, Austin-Healey 3000 Mk. I, II, III, add to Brakes Alt.: mm/(in.) as follows: "Rear Disc: #H82462 Front calipers & discs from TR-6 (std. or alt)"
HP Request to Classify 2012-2015 MINI Cooper Coupe in HP
#30167 from G. Brian Metcalf · Rule change · TB 21-04 (2021-04 Fastrack)
neutralHP Mini Cooper classification expands to include 12-15 Coupe model in existing spec line.
In HP Spec Lines, Mini Cooper (07-13) (includes 09-15 convertible), change as follows: "Mini Cooper (07-13) (includes 09-15 convertible and 12-15 Coupe)"
Applies to Mini Cooper on this page: Leanna Wright, Frank Schwartz
HP Request clarification on VW 1.8 Rabbit GTI Spec Line
#30368 from Andrew Benagh · Rule change · TB 21-04 (2021-04 Fastrack)
neutralHP Volkswagen Rabbit GTI 1780 (83-84) permits Mk2 VW front spindles, hubs and bearings.
In HP Spec Lines, Volkswagen Rabbit GTI 1780 (83-84), add to Notes as follows: "Mk2 VW front spindles, hubs and bearings are permitted."
Applies to Volkswagen Rabbit on this page: Jason LaManna, Carolyn Bayer-Broring
HP Volvo 142 spec line complete.
#29479 from Mike Ogren · Rule change · TB 21-05 (2021-05 Fastrack)
neutralVolvo 142/142E moves from HP Spec P-1800 Engine to HP Prep with 1989cc OHV four-cylinder, 2450–2573 lbs.
In HP Spec Lines, delete the existing Volvo 142/142E P-1800 Engine spec line entirely, and classify Volvo 142/142E:
A specification table follows in the original; it is not shown here.
HP Request to Classify 93-98 Volkswagen Golf to HP
#29790 from David Boles · Rule change · TB 21-05 (2021-05 Fastrack)
neutralVolkswagen Golf III/Jetta III 93-98 classified to HP at 2325–2441 lbs with 1984cc SOHC engine.
In HP Spec Lines, classify Volkswagen Golf III / Jetta III (93-98):
A specification table follows in the original; it is not shown here.
HP Appeal of Request to Move Porsche 924 to HP
#30132 from Hayes Lewis · Rule change · TB 21-05 (2021-05 Fastrack)
neutralPorsche 924 (76-84) newly classified to HP with 2400-2520 lbs weight, fuel injection, 1984cc engine.
In HP Spec Lines, classify Porsche 924 (76-84):
A specification table follows in the original; it is not shown here.
HP Change Classification of 84-87 Mazda 626 from FP to HP
#30350 from David Reiter · Rule change · TB 21-05 (2021-05 Fastrack)
neutral84-87 Mazda 626 reclassified from FP to HP with 2300–2415 lbs weight, 1998cc SOHC, dual 32mm carbs.
In HP Spec Lines, classify Mazda 626 (84-87):
A specification table follows in the original; it is not shown here.
HP Fiat X1/9 brake rotors
#30423 from Daniel Snow · Rule change · TB 21-05 (2021-05 Fastrack)
neutralFP Fiat X1/9 brake rotors change to 257 (10.1) x 12 (.407) solid disc.
In FP Spec Line, Fiat X-1/9 & Bertone 1300, change Brakes Alt. as follows: "(F&R) 257 (10.0 1) x 12 (.40 7) Solid Disc (Lancia/Fiat)" In FP Spec Line, Fiat X-1/9 & Bertone, change Brakes Alt. as follows: "(F&R) Lancia 257 (9.875 10.1) x 12 (.40 7) Solid Disc (Lancia/Fiat)"
HP 924 Brakes- and Thank You.
#30614 from Hayes Lewis · Rule change · TB 21-06 (2021-06 Fastrack)
fasterHP Spec Line Porsche 924 (76-84) brakes change from solid to vented disc.
In HP Spec Line Porsche 924 (76-84), change Brakes Std. as follows: "Solid Vented Disc"
HP Clarify Application of Percentage Based Weight Penalties
#30669 from Production Committee · Rule change · TB 21-06 (2021-06 Fastrack)
slowerEP, FP, HP clarifies percentage weight penalties sum first, then apply to base weight, rounding to nearest pound.
In GCR, Section 9.1.5.C. add as follows: "5. For percentage-based weight penalties, all applicable percentage values shall be summed first, and then applied to the vehicle’s minimum specified base weight, as listed in the PCS. The minimum vehicle weight shall be rounded to the nearest pound. For example, a car with a 1950lbs minimum specified base weight, that’s running a non-stock gear-engagement transmission and non-stock brake rotors and/or calipers, would calculate its minimum weight as follows: 5% transmission penalty + 2% brakes penalty = 7% total penalty 7% total penalty * 1950 lbs base weight = 2086.5 lbs 2086.5 lbs rounded to nearest pound = 2087 lbs minimum weight"
HP Correct Induction Error on new HP Mazda 626 Spec Line
#30702 from Production Committee · Rule change · TB 21-06 (2021-06 Fastrack)
unclearHP Mazda 626 (84-87) induction changed from dual 32mm sidedraft carbs to carburation or fuel injection.
In HP Spec Line, Mazda 626 (84-87), change Carb. No. & Type as follows: "(2) Auto-type sidedraft w/32mm choke(s) on I.R. manifold, of Carburation or fuel injection."
HP Lotus/Caterham 7 America Request
#30392 from Larry Svaton · Rule change · TB 21-07 (2021-07 Fastrack)
unclearEP Lotus/Caterham 7 America carburetor changed from IT fuel injection prep to fuel injection.
In EP Spec Lines, Lotus / Caterham 7 America, change as follows: Carburetor No. & Type: "IT fuel injection prep Fuel injection" Notes: "Engine is limited to IT preparation except modifications permitted in sections 9.1.5.E.2.e, 9.1.5.E.2.f, and 9.1.5.E.2.h."
HP Request to classify ITC Plymouth Arrow
#30588 from Steve Steeb · Rule change · TB 21-07 (2021-07 Fastrack)
neutralPlymouth Arrow 1598cc four-cylinder classified to HP at 1800 lbs minimum weight.
In HP Spec Lines, classify Plymouth Arrow, as follows:
A specification table follows in the original; it is not shown here.
HP Reclassification of the 1984/85 BMW 318i from FP to HP
#30661 from David Vestrand · Rule change · TB 21-07 (2021-07 Fastrack)
neutralBMW 318i E30 (84-85) reclassified from FP to HP at 2200–2310 lbs with fuel injection and .425" valve lift limit.
In HP Spec Lines, classify BMW 318i/is E30 (84-85), as follows:
A specification table follows in the original; it is not shown here.
HP Reclassify Daimler SP 250
#30721 from William Jarrell · Rule change · TB 21-07 (2021-07 Fastrack)
neutralDaimler SP 250 classified in EP at 2165 lbs with 2548 cc OHV 8-cylinder engine.
In EP Spec Lines, classify Daimler SP 250, as follows:
A specification table follows in the original; it is not shown here.
HP Request to Allow F22c Engine for 2000-2003 Honda S2000
#30548 from Michael Unger · Rule change · TB 21-08 (2021-08 Fastrack)
unclearHonda S2000 (00-03) reclassified as EP Prep with F22c engine option: 1997cc or 2157cc, weight 2450–2636 lbs depending on displacement.
In EP Spec Lines, delete Honda S2000 (00-03) and Honda S2000 (04-09) in their entirety. In EP Spec Lines, classify Honda S2000 as follows:
A specification table follows in the original; it is not shown here.
neutralHP Toyota MR-2 1.6L (85-89) track corrected to 15.47 inches front and rear.
In the HP "Toyota MR-2 1.6L (85-89)" spec line, please correct the Track column as follows: "1532 47 / 1532 47" In GCR, Section 9.1.5.C.4, please change as follows: "Track specifications will be set at 103% of the car’s stock track, plus 2.5 inches."
HP 944S2 Restrictor
#31396 from KEVIN Patterson · Rule change · TB 21-12 (2021-12 Fastrack)
slowerEP Porsche 944S2 89-91 requires 56mm flat plate intake restrictor; comp ratio max 12.0:1, valve lift max 0.500".
In EP Spec Lines, Porsche 944S2 (89-91), change Notes as follows: "Comp. Ratio limited to 12.0:1, Valve lift limited to .500”, Dry sump is allowed. 56mm Flat Plate Intake Restrictor is required. In order to facilitate the installation of the FPR, additional spacers/plates may be added to convert the mating area of the throttle body and the intake manifold into a flat surface. These pieces must maintain the stock 60mm throttle body bore, the FPR must be a separate piece that can be independently removed and measured, and the total thickness of all pieces (including the FPR) cannot add up to more than 1” in thickness. Can use the stock fuel tank if stock rear bumper and bumper support structure retained."
HP Classing Clarification for 1986 Toyota Corolla FX16
#31527 from Brian Heffron · Rule change · TB 21-12 (2021-12 Fastrack)
neutralHP Corolla GTS RWD (84-87) added at 2300 lbs; HP Corolla FX16 FWD (87-88) added at 2260 lbs; old Corolla (84-87) removed.
In HP Spec Lines, delete the Toyota Corolla (84-87) Spec Line in its entirety. In HP Spec Lines, classify the Toyota Corolla GTS (RWD) (84-87):
A specification table follows in the original; it is not shown here.
HP Porsche 968 Engine Questions
#31478 from Hayes Flynn · Rule change · TB 22-01 (2022-01 Fastrack)
fasterEP Porsche 968 intake valve size increased from 37 to 39.0 mm.
In EP Spec Lines, Porsche 968 (92-95), change Intake Valve size as follows: "(I) 37 39.0/(1.46 54)"
HP PCS E. 2. n. 4. Add Axle Shaft to Allow FWD the Same Freedom
#31592 from Chris Schaafsma · Rule change · TB 22-01 (2022-01 Fastrack)
neutralEP, FP, HP front-wheel-drive cars may alter body and suspension to install alternate transmission, transaxle, and axle shaft.
In Production, GCR sections 9.1.5.E.1.n.4. and 9.1.5.E.2.n.4. change as follows: "For rear wheel drive cars, the transmission tunnel and tunnel cover can be altered to allow the installation of an alternate transmission and/or driveshaft. For front wheel drive cars, the body, unibody, frame, suspension crossmembers/subframes and their components may be altered to the extent required to allow the installation of an alternate transmission, transaxle and/or driveshaft axle shaft."
HP Weight Adjustment To Fiat X1/9 Spec Lines, H-Production
#31653 from Matthew Brannon · Rule change · TB 22-01 (2022-01 Fastrack)
fasterHP Fiat X1/9 1500 loses 50 lbs to 1950; 1300 loses 45–47 lbs; Bertone 1500 loses 50–52 lbs.
In HP Spec Lines, make the following changes to Weight: Fiat X-1/9 & Bertone 1500 (Level 2): "1840 1790 *1886 1835 **1932 1880" Fiat X-1/9 1300 (Level 2): "1695 1650 *1737 1691 **1780 1733" Fiat X-1/9 1300 (Level 1): "2115 2060" Fiat X-1/9 1500 (Level 1/2): "2000 1950"
HP 1500 Midget
#31665 from Jerry Oleson · Rule change · TB 22-01 (2022-01 Fastrack)
neutralAustin-Healey Sprite Mk I, II, III, IV and MG Midget classified in HP Prep with 1510–1586 lbs depending on prep level.
In HP, classify Austin-Healey Sprite Mk I, II, III, IV MG Midget (ALL) as follows:
A specification table follows in the original; it is not shown here.
HP BMW Z3 2.5L Spec Line
#31724 from William Etherington · Rule change · TB 22-01 (2022-01 Fastrack)
neutralEP BMW Z3 2.5L allows alternate throttle body from 92-95 325i with Turner adapter; head casting 1738400 permitted with specific blocks.
In EP Spec Lines, BMW Z3 2.5L, change Notes as follows: "Comp. Ratio Limited to 12.0:1, Valve lift limited to .500”. To replace stock drive-by-wire throttle body, a Alternate throttle body from BMW 92-95 325i (part #13541748105) is permitted only with Turner Motorsports adapter plate (part #TEN9990850) is permitted. Cylinder head casting number 1738400 permitted with use of the allowed iron block (casting number 1748933 or 1738566)."
HP Request weight requirement for 1500 MG Midget
#31802 from Louis Rainer · Rule change · TB 22-01 (2022-01 Fastrack)
neutralAustin-Healey Sprite Mk I–IV and MG Midget classified in HP with 1655 lbs minimum weight.
In HP, classify Austin-Healey Sprite Mk I, II, III, IV MG Midget (ALL) as follows:
A specification table follows in the original; it is not shown here.
HP Throttle Body and Idle Air
#31800 from David Boles · Rule change · TB 22-02 (2022-02 Fastrack)
neutralEP, FP, HP classes allow stock/original idle control devices unmodified or completely removed with openings blocked.
In GCR, Section 9.1.5.E.1.b.1., change as follows: “All inducted air must pass through the venturi(s) of the car’s carburetor(s), except that which passes through a stock/original idle control device.“ In GCR, Section 9.1.5.E.1.b.4., change as follows: “Fuel injection: All inducted air must pass through the throttle body and be subject to control by the throttle butterfly), except that which passes through a stock/original idle control device.“ In GCR, Section 9.1.5.E.1.b., add the following: ”9. Stock/original idle control devices can be utilized in their original, unmodified location and condition, or completely removed
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and any resulting openings blocked off. “ In GCR, Section 9.1.5.E.2.b.1., change as follows: “All inducted air must pass through the venturi(s) of the cars carburetor(s), except that which passes through a stock/original idle control device. “ In GCR, Section 9.1.5.E.2.b.4., change as follows: “Fuel Injection: All inducted air must pass through the throttle body and be subject to control by the throttle butterfly), except that which passes through a stock/original idle control device. “ In GCR, Section 9.1.5.E.2.b., add the following: “9. Stock/original idle control devices can be utilized in their original, unmodified location and condition, or completely removed and any resulting openings blocked off. “
HP Incorrect Valve Size Changes in Jan 2022 GCR for FIAT X1/9
#31990 from Matthew Brannon · Rule change · TB 22-02 (2022-02 Fastrack)
unclearHP Fiat X1/9 intake valves corrected to 36.3mm/1.43in; exhaust valves to 33.3mm/1.31in or 31.2mm/1.23in depending on level.
In HP Spec Lines, change Valve Specs as follows: Fiat X-1/9 & Bertone 1500 - Level 2: "(I) 35.5/(1.40) 36.3/(1.43) (E) 33.0/(1.30) 33.3/(1.31)" Fiat X-1/9 1300 - Level 2: "(I) 35.5/(1.40) 36.3/(1.43) (E) 31.2/(1.23)" Fiat X-1/9 1300 - Level 1:
#31182 from Jason Stine · Rule change · TB 22-01 (2022-01 Fastrack)
slowerHP Triumph Spitfire 1500 minimum weight increases to 1605 lbs, 1645 lbs, or 1685 lbs.
Effective 3/1/2022 In HP Spec Lines, Triumph Spitfire 1500, make changes to Weight as follows: "1560 1605 *1599 1645 **1638 1685"
Applies to Triumph Spitfire on this page: Steve Sargis, Tom Broring, Andrew Wright
HP 1999 3.8L Ford Mustang to EP?
#31635 from Chris Dercole · Rule change · TB 22-03 (2022-03 Fastrack)
fasterFord Mustang 99-03 classified to EP at 2700/2768/2835 lbs; 94-98 Mustang weight reduced to 2550/2614/2678 lbs.
In EP Spec Lines, Ford Mustang (94-98), change weight as follows: "2700 2550 *2768 2614 **2835 2678" In EP Spec Lines, classify Ford Mustang (99-03) as follows:
A specification table follows in the original; it is not shown here.
HP EP Adjustments
#31858 from Production Committee · Rule change · TB 22-01 (2022-01 Fastrack)
slowerEP BMW Z3 2.5L intake restrictor reduced from 59mm to 58mm flat plate.
Effective 3/1/2022 In EP, make changes to BMW spec lines as follows: BMW Z3 2.5L - 59 58mm Flat Plate Intake Restrictor is required with both stock or alternate throttle body. BMW 328i/is E36 (96-99) - 62mm Flat Plate Intake Restrictor is required. BMW 328i/ci E46 (01-06) - 62mm Flat Plate Intake Restrictor is required. BMW 325i/is E46 (01-06) - 60mm Flat Plate Intake Restrictor is required. BMW 325i/is E36 (92-95) - 60mm Flat Plate Intake Restrictor is required. BMW 325is M-Technic (1994) - 60mm Flat Plate Intake Restrictor is required.
neutralEP, FP, HP Improved Touring cars may use any DOT-approved tire per section 9.3.45 in Production class.
In Production, GCR Section 9.1.5.B.5, change as follows: "Any Improved Touring car meeting all the requirements of ITCS 9.1.3 may compete in the Production class in which the same make, model and engine displacement car is classified. For Improved Touring cars competing in Production, the level of preparation and modifications will be as determined by ITCS 9.1.3 and not by PCS 9.1.5, however any DOT approved tire as defined by 9.3.45 is allowed."
HP Mazda RX8 with 13b Rotary
#32170 from John Warren · Rule change · TB 22-04 (2022-04 Fastrack)
In EP Spec Lines, Mazda RX-8 (04-11) (alternate), make the following changes to Carburetor. No. & Type: "Renesis: Fuel Injection. 13B: d (1) Auto-type 2 bbl carb w/ 42mm choke(s) on a “dual-y” manifold, (1) 2 bbl fuel injected throttle body w/ 42mm choke(s) on a “dual-y” manifold, or stock 13B fuel injection."
HP Request Idle control valve clarification
#32178 from Joe Camilleri · Rule change · TB 22-04 (2022-04 Fastrack)
neutralEP and FP Production clarifies idle control valve rules: stock devices allowed original, removed with blocked ports, or mechanical replaced with electronic stock type.
In Production, GCR Section 9.1.5.E.1.b.9, add the following: "Stock/original idle control devices can be utilized in their original, unmodified location and condition, or completely removed and any resulting openings blocked off. A mechanical stock/original idle control device can be replaced with an electronic stock/original type of idle control device, with the original mechanical idle ports in the throttle body blocked off." In Production, GCR Section 9.1.5.E.2.b.9, add the following: "Stock/original idle control devices can be utilized in their original, unmodified location and condition, or completely removed and any resulting openings blocked off. A mechanical stock/original idle control device can be replaced with an electronic stock/original type of idle control device, with the original mechanical idle ports in the throttle body blocked off."
HP Classify VW New Beetle in HP.
#32241 from Brian Metcalf · Rule change · TB 22-04 (2022-04 Fastrack)
neutralHP Volkswagen New Beetle (98-05) classified at 2350 lbs minimum, 1984cc SOHC, fuel injection, 11.0:1 compression limit.
In HP Spec Lines, classify Volkswagen New Beetle (98-05) as follows:
A specification table follows in the original; it is not shown here.
HP EP MX-5 Global Cup Car
#32218 from Production Committee · Rule change · TB 22-03 (2022-03 Fastrack)
slowerEP Mazda MX-5 Global Cup 16-22 minimum weight set to 2400 lbs; sequential gearbox allowed with +150 lbs penalty.
Effective 05/01/2022 In EP Spec Lines, Mazda MX-5 Global Cup (16-22), change as follows: Weight (lbs): "see notes 2400" Notes: "Car preparation is limited to what is permitted by the MX-5 Global Cup rules, and the car must meet all MX-5 Global Cup rules except as otherwise indicated within this spec line. Competitors must have the current MX-5 Global Cup rules in their possession and present them upon request. Sequential gearbox is allowed with +150lbs."
HP Please Class BMW 128i in EP
#32370 from Mark Uhlmann · Rule change · TB 22-05 (2022-04 Fastrack)
neutralBMW 128i (08-13) classified in EP at 2700 lbs minimum with stock throttle body, 11.0:1 compression ratio, 0.400 in. valve lift limits.
In EP Spec Lines, classify the BMW 128i (08-13) as follows:
A specification table follows in the original; it is not shown here.
HP Inconsistency in Body Work Descriptions
#32396 from Production Committee · Rule change · TB 22-05 (2022-04 Fastrack)
fasterEP/FP/HP open cars may now use carbon fiber hardtops if they retain OEM appearance in all exterior profiles.
In Production Category Specifications, GCR Section 9.1.5.E.9.a.12 change as follows: "Open cars must remove convertible soft tops and all attaching bracketry and hardware. If the stock windshield is retained, OEM and aftermarket hardtops are allowed. Aftermarket hardtops must retain OEM appearance in all exterior profiles, and carbon fiber construction is not allowed. Any hardtop must be attached by positive fasteners."
HP Subaru BRZ Model Years
#32500 from Steve Gaetjens · Rule change · TB 22-06 (2022-06 Fastrack)
neutralEP Subaru BRZ and Toyota 86/Scion FR-S model year ranges updated to 13-20.
In EP Spec Lines, Subaru BRZ (2013), change title changes: "Subaru BRZ (13 - 20)" In EP Spec Lines, Toyota Scion FR-S (2013), change title changes: "Toyota 86 / Scion FR-S (13 - 20)"
HP Request to classify VW New Beetle 2.5L in EP
#32725 from G. Metcalf · Rule change · TB 22-09 (2022-09 Fastrack)
neutralVW New Beetle 2.5L 5-cyl added to EP at 2400–2520 lbs, 2480 cc, fuel injection, comp ratio 12.0:1 max, valve lift 0.500" max.
In EP Spec Lines, classify Volkswagen New Beetle (06-11) as follows:
A specification table follows in the original; it is not shown here.
HP Request Rotary Injection on Dual Y manifold
#32775 from James Lindenthal · Rule change · TB 22-09 (2022-09 Fastrack)
unclearEP Mazda RX-7 12A/13B gains fuel injection option on dual-y manifold with 42mm choke(s).
Effective November 1, 2022, in EP Spec Lines, change Carburetor. No. & Type as follows: Mazda RX-7 (12A/13B) (79-85): "12A: (1) Nikki 4 bbl carburetor w/ primary choke(s) bored to match secondary choke(s) on a stock manifold or (1) Auto-type 2 bbl w/42mm choke(s) on a “dual-y” manifold. 13B: (1) Auto-type 2 bbl w/ 42mm choke(s) on a “dual-y” manifold, (1) 2 bbl fuel injected throttle body w/ 42mm choke(s) on a “dual-y” manifold, or stock 13B fuel injection." Mazda RX-7 (13B) (86-91): "(1) Auto-type 2 bbl w/ 42mm choke(s) on a “dual-y” manifold, (1) 2 bbl fuel injected throttle body w/ 42mm choke(s) on a “dual- y” manifold, or stock 13B fuel injection."
HP Request for Corrado Stroke & Displacement Correction
#32985 from Douglas Hedges · Rule change · TB 22-09 (2022-09 Fastrack)
neutralEP VW Corrado 92-95 stroke corrected to 90.3 mm, displacement to 2792 cc.
In EP Spec Line, VW Corrado (92-95), change as follows: Bore x Stroke mm/(in.): "81.0 x 90.4 3 (3.19 x 3.56)" Displ. cc/(ci) (nominal): "278 92"
Runoffs 2022 → Runoffs 2023 2022-09-24 to 2023-09-23
HP MGB HP Weight Break and/or Hybrid 1/2 Prep in HP
#33127 from Neil Verity · Rule change · TB 23-01 (2023-01 Fastrack)
fasterMGB & MGB-GT HP weight breaks reduced to 2000, 2050, 2100 lbs; new MGB HP Prep 1/2 hybrid added at 2175 lbs.
In HP Spec Lines, MGB & MGB-GT, change Weight as follows: "2050 2000 *2101 2050 **2153 2100" In HP Spec Lines, create new spec line as follows:
A specification table follows in the original; it is not shown here.
HP Datsun 510 Help
#33568 from Brian Downey · Rule change · TB 23-01 (2023-01 Fastrack)
fasterHP Nissan/Datsun PL510 weight reduced: base 1960 to 1910 lbs, * 2009 to 1958 lbs, ** 2058 to 2006 lbs.
In HP Spec Line, Nissan/Datsun PL510, change Weight changes: "1960 1910 * 2009 1958 ** 2058 2006"
Applies to Nissan PL510 on this page: Brian Downey
HP Review Limited Prep Port Matching Rules
#33600 from Production Committee · Rule change · TB 23-01 (2023-01 Fastrack)
neutralEP, FP, HP cylinder head ports limited to 1 inch maximum depth matching from mating surface.
In Production Category Specifications, GCR section 9.1.5.E.2.e.5., change as follows: "Cylinder head ports may be matched to the intake and exhaust manifolds to a depth of no more than 1 inch from the port mating surface."
neutralFord Fiesta HP and Chevrolet Sonic FP model year ranges extended from 2016 to 2019.
In HP, adjust model years of the "Ford Fiesta (11-16)" spec line as follows: "Ford Fiesta (11-16 9)" In FP, adjust model years of the "Chevrolet Sonic (12-16)" spec line as follows: "Chevrolet Sonic (12-16 9)"
HP ITC to FP?
#34286 from David Snow · Rule change · TB 23-06 (2023-07 Fastrack)
neutralHP Volkswagen Rabbit Cabriolet 1780 removed; Rabbit 1588 and 1715 reclassified with engine sizes and year ranges specified.
In HP Spec Lines, Volkswagen Rabbit Cabriolet 1780, delete in its entirely: In HP, Spec Lines, Volkswagen Rabbit, change Title as follows: “Volkswagen Rabbit 1588 (includes Cabriolet / convertible)” “Volkswagen Rabbit 1715 (81-84) (excl. conv.)” “Volkswagen Rabbit GTI 1780 (83-84)”
Applies to Volkswagen Rabbit on this page: Jason LaManna, Vincent LaManna, Carolyn Bayer-Broring
HP Correct Intake Valve Size on 1500cc Midget/Spitfire
#34419 from Production Committee · Rule change · TB 23-06 (2023-05 Fastrack)
neutralFP and HP Sprite, Midget, and Spitfire 1500 intake valve size corrected to 36.6/(1.44).
In FP Spec Lines, Austin-Healey Sprite Mk. I, II,III, IV MG Midget Mk I,II, III, IV & 1500, change Intake Valve Size as follows: "(I) 36.65.3/(1.44)" In FP Spec Lines, Triumph Spitfire Mk. IV & 1500, change Intake Valve Size as follows: "(I) 36.65.5/(1.440)" In HP Spec Lines, Triumph Spitfire 1500, change Intake Valve Size as follows: "(I) 36.65.5/(1.440)" In HP Spec Lines, Triumph Spitfire Mk. III & IV 1500, change Intake Valve Size as follows: "(I) 36.65.5/(1.440)"
Applies to Triumph Spitfire on this page: Steve Sargis, Tom Broring, Andrew Wright
HP Larger chokes
#34681 from Brian Downey · Rule change · TB 23-09 (2023-09 Fastrack)
In HP Spec Line, Nissan/Datsun PL510, change Carburetor. No. & Type as follows: "(1) 40 DCN, DCNF w/ 32 4mm choke(s), . or (1) 36mm DCNVH. (2) auto type side draft(s) w/ 32 4mm choke(s) on I.R. manifold @ 90lbs penalty."
Applies to Nissan PL510 on this page: Brian Downey
What the rules allowed changed as listed; this does not say what any particular car ran.