Ls1.. howe to get more power..

[pro-touring.no]

Hi.. I Will use carburetor on my ls1 with auto/trans and I will try to get 500 hors out of it.. Is that possible.. without using to many$$ any one who has any tips to me

Thanks

[camcojb]

Originally Posted by pro-touring.no

Hi.. I Will use carburetor on my ls1 with auto/trans and I will try to get 500 hors out of it.. Is that possible.. without using to many$$ any one who has any tips to me

Thanks

500 flywheel or 500 rear wheel HP? 500 flywheel will likely take a head and cam swap, 500 rwhp will require even more mods, or a power adder such as a blower, nitrous, etc.

This is doable, but I'd figure heads and cam at $2500+, plus of course a proper tune, headers with a good exhaust, etc. You can pick up good power with just a cam swap, headers, and tune, but not going to reach 500 HP with an LS1 without a head swap or fully ported heads at least in addition to the headers and cam.

Jody

[pro-touring.no]

Originally Posted by camcojb

500 flywheel or 500 rear wheel HP? 500 flywheel will likely take a head and cam swap, 500 rwhp will require even more mods, or a power adder such as a blower, nitrous, etc.

This is doable, but I'd figure heads and cam at $2500+, plus of course a proper tune, headers with a good exhaust, etc. You can pick up good power with just a cam swap, headers, and tune, but not going to reach 500 HP with an LS1 without a head swap or fully ported heads at least in addition to the headers and cam.

Jody

It will be 500 hors on the flywheel.... what type of carburater and manifold??
thanks

[camcojb]

Originally Posted by pro-touring.no

It will be 500 hors on the flywheel.... what type of carburater and manifold??
thanks

I would keep it efi, no carb. But if you go carb there are only a few choices for an intake; GM Performance has one, and I believe Edelbrock also does, and that's about all I've heard of. Since they're a fuel injected engine there's not a lot of intake manifolds out there for carbs.

On the carb, probably something in the 750 cfm range or so.

Jody

[Stuart Adams]

Damn Jody your good.

[70rs]

I thought I read somewhere Trick Flow had an LS manifold. ?? I think the choices are slim but getting better.

[tones2SS]

Originally Posted by camcojb

I would keep it efi, no carb. But if you go carb there are only a few choices for an intake; GM Performance has one, and I believe Edelbrock also does, and that's about all I've heard of. Since they're a fuel injected engine there's not a lot of intake manifolds out there for carbs.

On the carb, probably something in the 750 cfm range or so.

Jody

FAST makes an intake as well. Not sure how well they stack up against the ones Jody listed here. (Jody knows his stuff!!)

[pro-touring.no]

can i use AFR 225 on Ls1 ore are they to big??

kjell

[deuce_454]

go to www.ls1tech.com all those questions and a million more has been answered and you can search to see the dynoresults of every imaginable combo... but for anything beliw 500 rwhp (600 crank Hp) an afr 225 will be to big for a streetcar on a stock displacement ls engine..... a pair of hand finished afr 205 with a ported FAST 92mm intake, and a well engineered cam will put down 500 rwhp with a 6 speed and have gobs more torque than a simmilar 225 headad engine will... the problem is that the intakes for la engined really dont flow mor ethan 275 cfm... so if you want to actually ust those big heads you need more displacement and a singleplane intake like a super victor ....

but ls1tech.com is your friend

[pro-touring.no]

Thanks...