World Cup Finals (Import vs Domestic) Nov 6-7 @ MIR
#22
9 Second Club
iTrader: (5)
I'll break out the LS rules for everyone .....
Motor Street ....
8-Cylinder Engines – Chevy LT / LS series
Engine: This is for cam only cars, with bolt-ons. Only the following factory blocks are permitted: LT1, LT4, LS1, LS2, LS3, and LS6 series blocks only.
LS2 and LS3 engines and cylinder heads are only permitted in cars with IRS rear suspension.
No aftermarket blocks are permitted. Internal engine modifications are prohibited except for overbore, aftermarket camshafts,
hydraulic lifters, and valve springs only.
See chart below for max CID. External bolt-on parts are allowed.
Approved Cylinder Heads: Any valve job is permitted. OEM cylinder heads only are permitted with the following casting numbers: 241, 243, 317, 706, 799, 853, and 862. Cylinder heads must remain stock, no port work or milling of cylinder head.
Power Adders: Turbochargers, Superchargers, and Nitrous Oxide are prohibited. All nitrous bottles and solenoids must be removed from car and nitrous nozzles must be capped.
Induction: Engine must be EFI. All OEM intakes are permitted. The only aftermarket intakes permitted are: BBK intakes, Typhoon intakes, and Fast 78mm, 90mm, 92mm, and 102mm intakes.
Engine Motor & Max Displacement Cylinder Heads Car & Driver Minimum Weight
8-cylinder LT1 & LT4 (Up to 355ci.) (Un-Ported as cast) 2950 lbs.
8-cylinder LS1 & LS6 (Up to 348ci.) (Un-Ported as cast) 3050 lbs.
8-cylinder LS2 (Up to 366ci.) (Un-Ported as cast) 3150 lbs.
8-cylinder LS3 (Up to 380ci.) (Un-Ported as cast) 3350 lbs.
Motor Street ....
8-Cylinder Engines – Chevy LT / LS series
Engine: This is for cam only cars, with bolt-ons. Only the following factory blocks are permitted: LT1, LT4, LS1, LS2, LS3, and LS6 series blocks only.
LS2 and LS3 engines and cylinder heads are only permitted in cars with IRS rear suspension.
No aftermarket blocks are permitted. Internal engine modifications are prohibited except for overbore, aftermarket camshafts,
hydraulic lifters, and valve springs only.
See chart below for max CID. External bolt-on parts are allowed.
Approved Cylinder Heads: Any valve job is permitted. OEM cylinder heads only are permitted with the following casting numbers: 241, 243, 317, 706, 799, 853, and 862. Cylinder heads must remain stock, no port work or milling of cylinder head.
Power Adders: Turbochargers, Superchargers, and Nitrous Oxide are prohibited. All nitrous bottles and solenoids must be removed from car and nitrous nozzles must be capped.
Induction: Engine must be EFI. All OEM intakes are permitted. The only aftermarket intakes permitted are: BBK intakes, Typhoon intakes, and Fast 78mm, 90mm, 92mm, and 102mm intakes.
Engine Motor & Max Displacement Cylinder Heads Car & Driver Minimum Weight
8-cylinder LT1 & LT4 (Up to 355ci.) (Un-Ported as cast) 2950 lbs.
8-cylinder LS1 & LS6 (Up to 348ci.) (Un-Ported as cast) 3050 lbs.
8-cylinder LS2 (Up to 366ci.) (Un-Ported as cast) 3150 lbs.
8-cylinder LS3 (Up to 380ci.) (Un-Ported as cast) 3350 lbs.
#23
9 Second Club
iTrader: (5)
True Street ...
Basic all motor class
8-Cylinder Engines – Chevy LT / LS / LQ series
Engine: Only the following factory blocks are permitted: LT1, LT4, LS1, LS2, LS3, LS6, LS7, LQ9, and LQ4 series blocks only. No aftermarket blocks are permitted. Any internal engine modifications are permitted. Max CID is 427ci.
Approved Cylinder Heads: Aftermarket cylinder heads are permitted. Canted valve heads, C5R heads, and billet heads are prohibited.
Power Adders: Turbochargers, Superchargers, and Nitrous Oxide are prohibited. All nitrous bottles and solenoids must be removed from car and nitrous nozzles must be capped.
Induction: Engine may be EFI or carbureted. Aftermarket commercially available intakes only are permitted. No fabricated or sheet metal intakes.
Engine Motor & Max Displacement Car & Driver Minimum Weight
8-cylinder LT, LS, LQ (346ci - 376ci.) 2900 lbs.
8-cylinder LT, LS, LQ (377ci - 410ci.) 3100 lbs.
8-cylinder LT, LS, LQ (411ci - 427ci.) 3300 lbs.
Basic all motor class
8-Cylinder Engines – Chevy LT / LS / LQ series
Engine: Only the following factory blocks are permitted: LT1, LT4, LS1, LS2, LS3, LS6, LS7, LQ9, and LQ4 series blocks only. No aftermarket blocks are permitted. Any internal engine modifications are permitted. Max CID is 427ci.
Approved Cylinder Heads: Aftermarket cylinder heads are permitted. Canted valve heads, C5R heads, and billet heads are prohibited.
Power Adders: Turbochargers, Superchargers, and Nitrous Oxide are prohibited. All nitrous bottles and solenoids must be removed from car and nitrous nozzles must be capped.
Induction: Engine may be EFI or carbureted. Aftermarket commercially available intakes only are permitted. No fabricated or sheet metal intakes.
Engine Motor & Max Displacement Car & Driver Minimum Weight
8-cylinder LT, LS, LQ (346ci - 376ci.) 2900 lbs.
8-cylinder LT, LS, LQ (377ci - 410ci.) 3100 lbs.
8-cylinder LT, LS, LQ (411ci - 427ci.) 3300 lbs.
#24
9 Second Club
iTrader: (5)
Wild Street
Basic power adder class...
8-Cylinder Engines – Chevy LT / LS / LQ series
Engine: Only the following factory blocks are permitted: LT1, LT4, LS1, LS2, LS3, LS6, LS7, LS9, LQ9, and LQ4 series blocks only. No aftermarket blocks are permitted. Any internal engine modifications are permitted. Max CID is 427ci.
Approved Cylinder Heads: Aftermarket cylinder heads are permitted. Canted valve heads, C5R heads, and billet heads are prohibited.
Turbochargers: Turbochargers are measured at the inducer wheel diameter at the point where the leading edge of the compressor wheel meets the inlet housing. Maximum size turbo is a 76.9mm single or 58.9mm twins. Cannot combine with nitrous oxide.
Superchargers: Superchargers are permitted and must run off a serpentine belt. Roots style superchargers or centrifugal superchargers are permitted. Any version F1, F2, F3, or Xi superchargers are not permitted. Cannot combine with nitrous oxide.
Nitrous Oxide: Stock style EFI intake manifolds with a forward facing throttle body are limited to a single stage direct port fogger system, or a 2-stage plate system with no jet limit.
Carburetor style intake manifolds with engines between 346ci. - 383ci. are limited to a single stage direct port fogger system, or a 2-stage plate system with no jet limit. Carburetor style
intake manifolds with engines between 384ci. - 427ci. are limited to a single stage direct port fogger system (with a .032 nitrous jet) or a single plate system (with a .092 nitrous jet).
Intercooling: Liquid intercoolers and air intercoolers are permitted. Water injection is permitted. Methanol injection is prohibited.
Induction: Engine must be EFI. Aftermarket commercially available intakes only are permitted. No fabricated or sheet metal intakes.
Engine Motor & Max Displacement Car & Driver Minimum Weight
8-cylinder LT, LS, LQ - Nitrous Injected (346ci – 383ci.) 3000 lbs.
8-cylinder LT, LS, LQ - Nitrous Injected (384ci – 427ci.) 3350 lbs.
8-cylinder LT, LS, LQ - Supercharged (346ci – 383ci.) 3250 lbs.
8-cylinder LT, LS, LQ - Supercharged (384ci – 427ci.) 3400 lbs.
8-cylinder LT, LS, LQ - Turbocharged (Up to 427ci.) 3400 lbs.
8-cylinder LT, LS, LQ naturally aspirated (Up to 427ci.) 3000 lbs.
Basic power adder class...
8-Cylinder Engines – Chevy LT / LS / LQ series
Engine: Only the following factory blocks are permitted: LT1, LT4, LS1, LS2, LS3, LS6, LS7, LS9, LQ9, and LQ4 series blocks only. No aftermarket blocks are permitted. Any internal engine modifications are permitted. Max CID is 427ci.
Approved Cylinder Heads: Aftermarket cylinder heads are permitted. Canted valve heads, C5R heads, and billet heads are prohibited.
Turbochargers: Turbochargers are measured at the inducer wheel diameter at the point where the leading edge of the compressor wheel meets the inlet housing. Maximum size turbo is a 76.9mm single or 58.9mm twins. Cannot combine with nitrous oxide.
Superchargers: Superchargers are permitted and must run off a serpentine belt. Roots style superchargers or centrifugal superchargers are permitted. Any version F1, F2, F3, or Xi superchargers are not permitted. Cannot combine with nitrous oxide.
Nitrous Oxide: Stock style EFI intake manifolds with a forward facing throttle body are limited to a single stage direct port fogger system, or a 2-stage plate system with no jet limit.
Carburetor style intake manifolds with engines between 346ci. - 383ci. are limited to a single stage direct port fogger system, or a 2-stage plate system with no jet limit. Carburetor style
intake manifolds with engines between 384ci. - 427ci. are limited to a single stage direct port fogger system (with a .032 nitrous jet) or a single plate system (with a .092 nitrous jet).
Intercooling: Liquid intercoolers and air intercoolers are permitted. Water injection is permitted. Methanol injection is prohibited.
Induction: Engine must be EFI. Aftermarket commercially available intakes only are permitted. No fabricated or sheet metal intakes.
Engine Motor & Max Displacement Car & Driver Minimum Weight
8-cylinder LT, LS, LQ - Nitrous Injected (346ci – 383ci.) 3000 lbs.
8-cylinder LT, LS, LQ - Nitrous Injected (384ci – 427ci.) 3350 lbs.
8-cylinder LT, LS, LQ - Supercharged (346ci – 383ci.) 3250 lbs.
8-cylinder LT, LS, LQ - Supercharged (384ci – 427ci.) 3400 lbs.
8-cylinder LT, LS, LQ - Turbocharged (Up to 427ci.) 3400 lbs.
8-cylinder LT, LS, LQ naturally aspirated (Up to 427ci.) 3000 lbs.
#27
10 Second Club
iTrader: (8)
I dont know how knowledgeable the officials are about LS style heads, but it one were to comepete in a cam-only class with non stock castings, I'm sure someone might say something to somebody.
There's index racing and bracket racing - run anything races.
No need to try to cheat the system to get into a heads-up race...
There's index racing and bracket racing - run anything races.
No need to try to cheat the system to get into a heads-up race...
#31
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26x11.5 slick and any size drag radials except 315/60/15, 325/50/15, 295/55/15 and 295/60/15 ..... Studderin are you coming down? It would be cool to get as many as possible cam only ls cars to run.
Last edited by MATTREDSS; 09-30-2010 at 04:10 PM.
#35
10 Second Club
iTrader: (8)
I certainly didn't intend to infer that anyone was trying to cheat... I appoligize if I offended anyone.
And after re-reading the rules it seems they specify blocks and specify head castings, but they dont say which heads on which blocks.
So I would agree, a cam only car can run any heads (casting numbers listed) as long as they are not ported....
Best of success to everyone going down...
It's going to be a great event.
And after re-reading the rules it seems they specify blocks and specify head castings, but they dont say which heads on which blocks.
So I would agree, a cam only car can run any heads (casting numbers listed) as long as they are not ported....
Best of success to everyone going down...
It's going to be a great event.
#36
So what classes could I race in with the ls1 rx7?
Might be a good end of season event. I dont know many 11.50 import bracket cars but then again this event looks a lot bigger than anything local.
Is the prize money given out to the import and domestic winner of each class or is it the overall winner domestic and import cause if its the latter I cant see any imports really winning any money.
If payout is to each winner on the domestic and import side I might go for the 11.50 class again.
Might be a good end of season event. I dont know many 11.50 import bracket cars but then again this event looks a lot bigger than anything local.
Is the prize money given out to the import and domestic winner of each class or is it the overall winner domestic and import cause if its the latter I cant see any imports really winning any money.
If payout is to each winner on the domestic and import side I might go for the 11.50 class again.
#39
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What class would I be in. I have a stock internial 02 Z28 Camaro. By then then my mods should be Stall/LT's/ORY/373s/LM1/Lid/K&N/FRA/Throttle body bypass/P&P Throttle Body/Smooth bellow..Could I run in the Factory class. would my bolt ons keep me from getting in that class.
#40
10 Second Club
iTrader: (8)
What class would I be in. I have a stock internial 02 Z28 Camaro. By then then my mods should be Stall/LT's/ORY/373s/LM1/Lid/K&N/FRA/Throttle body bypass/P&P Throttle Body/Smooth bellow..Could I run in the Factory class. would my bolt ons keep me from getting in that class.
Sounds like factory shoot out would be your class.
Check your tires though. No skinnys and no bias ply.