Headers and intake gains: Question

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Mar 27, 2011 | 04:05 PM

Oguruma

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From: Heidelberg BW

Headers and intake gains: Question

Before buying my C5 I did a lot of research about modding F-bodies. It seems that the gains from headers/intake on an LS1 Corvette are substantially higher than those offered by similar/same mods on LS1 F-bodies. What is the reasoning behind this? I have heard of people gaining 25RWHP on a C5 from LTs, and another 15-20RWHP from an intake. I know that the C5 features true dual exhaust, which the F-bodies do not, but why are the gains so much more? Or are my numbers incorrect?

Mar 27, 2011 | 04:16 PM

BLK RED

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Mar 27, 2011 | 05:04 PM

AU N EGL

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From: Raleigh / Rolesville NC

F-bodies had LS1s Most corvettes that are moded have LS6s. (Z06) Difference with there to start with.

Better flowing heads and intake
different cam
LS6 block is stronger( thinker walls) and the oiling and coolant gallies are better flowing then the LS1 block.

so just the starting point is different.

Mar 27, 2011 | 05:07 PM

Oguruma

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From: Heidelberg BW

I am referring to the LS1 Corvette. It still seems like the gains are greater even on LS1 Vettes.

Mar 27, 2011 | 05:12 PM

YO-EL

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From: Phila PA, Bonita Springs FL

20 RWHP w/ headers, intake may give 5-10

Mar 27, 2011 | 05:27 PM

zeevette

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From: Pasco WA

I think the difference is minor, and easily accounted for by the rest of the exhaust system, after the headers. Just a guess, I've never owned a late model F-body.

Mar 27, 2011 | 05:31 PM

AU N EGL

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From: Raleigh / Rolesville NC

Quote:

Originally Posted by Oguruma

I am referring to the LS1 Corvette. It still seems like the gains are greater even on LS1 Vettes.

is the governor on the Cameros tuned out?

Mar 27, 2011 | 08:26 PM

slowtealz28

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From: South Florida

The F-bodies dyno higher to begin with due to less parasitic loss. Headers you will see 20-30rwhp with a tune, LS6 intake about 5rwhp. Intake... about 0 on the dyno. On the track though, you'll see a good 2-3 tenths drop in ET. So basically with headers, vararam, LS6 intake, and tune, you're looking .60 drop in ET which is nice. But then again it all has to do with the driver.