How Much Boost Will It Take?

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Apr 19, 2013 | 03:44 PM

C5natie

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From: SoCal

How Much Boost Will It Take?

Hey guys, im looking at possibly buying an a&a vortech kit for my c5 that has an LS3 in it. My goal is to make a safe and reliable 600rwhp. I have a cam in the motor and headers. That car already makes about 470rwhp 455rwtq. The cam is a TSP 231/236 114lsa, .641/.615 lift. With that said how much boost would it take to hit 600rwhp safely with a good tune? I need my stock block to last me. The motor is stock except the cam and the trans and rear end are already built. Thanks.

Apr 19, 2013 | 04:14 PM

Alvin@PCMofNC

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From: Mooresville, NC

Quote:

Originally Posted by C5natie

Typically, on a good set up you get 20hp per pound of boost. If you're making 470 now and want 600, you're asking for a 130 hp gain. 130/20 = 6.5lbs roughly. It can absolutely handle that. The LS3's are awesome for boost, we routinely build them to 600-700rwhp boosted for customers without any issues.

The tuning and fueling is very important...so go to a tuner you trust, and make sure you have enough fuel pump and injector to get you there.

My personal heads/cam LS3 Camaro makes 698rwhp at 10lbs of boost (TVS 2300) with no problems. You really can't beat these motors! We love those A&A kits too, they install very nicely and the performance is great as well. Be sure to upgrade to the V3 head unit, it's self contained oiling, and it's a cheap upgrade.

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Apr 19, 2013 | 04:38 PM

C5natie

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Thanks a lot Alvin. Its a complete but used kit im getting from a trusted local corvette forum vendor. I want the motor to last so im not looking to get crazy with it. Nice to know even 7psi will get me there or very close. Ill make sure I get bigger injectors and a boost a pump.

Apr 19, 2013 | 07:27 PM

6D9 Matt

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From: Owensboro, KY

Yeah Id say 8 psi would get you there... plenty of room to turn it up.

Apr 22, 2013 | 07:27 AM