what will it gain?

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Dec 2, 2007 | 06:07 PM

Disturbed Bird

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From: Savannah, GA

what will it gain?

with out the no2 my car is putting down 450rwhp and 390rwtq. i have stock ls6 heads and intake manifold, a lid, pulleys cam, headers and x pipe.

im putting on a vengeance ported fast 90 and NW 90mm TB. also changed out my lid for this bad boy

.

with a retune what do you think it will make?

Dec 3, 2007 | 11:14 AM

Disturbed Bird

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From: Savannah, GA

anyone?

Dec 3, 2007 | 12:33 PM

ice97ta

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From: so cal

if your getting it tuned, you could see almost 500

Dec 3, 2007 | 01:18 PM

sprayjunkie

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From: sofla

Wow...+50rwhp from a ported Fast on stock heads??
I think I really need one of those then....

Dec 3, 2007 | 05:50 PM

Disturbed Bird

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From: Savannah, GA

Quote:

Originally Posted by sprayjunkie

Wow...+50rwhp from a ported Fast on stock heads??
I think I really need one of those then....

well they are stock ls6 heads which is still way better than a stock ls1 head or maybe even a ported ls1 not sure on that one though but i like to hope

but if it will really gain that much i would be so happy! but what about torque? thats my biggest concern. i need more!!!!!

Dec 4, 2007 | 11:58 AM

Disturbed Bird

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anyone know how much torque i should gain?

Dec 4, 2007 | 12:26 PM

JEB99TA

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From: Florida

I gained some with my 90/90 setup and also did the SLP 90mm MAF at the same time. I believe it netted me about 18 RWHP and 14 RWTQ. These are about normal gains over the ported TB and LS6 intake I had. Your heads are holding you back, but, they're making good power. With better heads and small intake runners, you'd be with killer torque down low IMHO.

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Dec 7, 2007 | 05:23 AM

JEB99TA

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From: Florida

No, it's not ported because of future plans for FI.

Dec 7, 2007 | 05:48 AM

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OneQuickCoupe

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Are you going to a local tuner?

D.J.

Dec 7, 2007 | 02:15 PM

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KONG

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Quote:

Originally Posted by JEB99TA

The heads are not holding him back at all. On a small block chevy it takes 260-270 cfm intake flow to support 500+hp. People would know that if they did there homework. At the horsepower level he is at now aftermarket heads would be a bad investment for his combo. Just think, is it worth spending 2000-3000 bucks for 25 or 30hp. The most logical solution would be more displacement. which would be cheaper than a set of fully assembled aftermarket heads. think about it.