fuzzyjk

iTrader: (4)

5.3, L33, T60 on truck manifolds, 243 heads, 218 cam, LS1 intake.

Question: Is it worth switching out the LS1 intake to the LS6 I have sitting in the attic? Or should I sell it?

fuzzyjk

iTrader: (4)

Anyone?

CarsandWomen

iTrader: (19)

prob not, id sell it. Forced induction kind of overrides the gains cuz you can just turn it up a little. If you bracket or class race then put it on, otherwise, take teh 300 bucks and move on.

Orangemagic

iTrader: (2)

Same thoughts. Not really any gains to be had.

Bob@BruteSpeed

iTrader: (16)

On an LS2/402 with AFR 225 heads and an ProCharger F-1A at the old shop, we swapped out an LS2 intake manifold for a FAST 92 and went from 809 rwhp to 864 rwhp with no other changes. Personally I would use the LS6 intake that you have sitting there. Bob

CarsandWomen

iTrader: (19)

Bob is right, you will gain power by switching, maybe a lot maybe a little, but my point above is if your not trying to squeeze every last pony out of your setup then dont worry about it.

FWIW, FI applications tend to be a little more sensitive to stuff like intake changes, youll prob see it spool a little differently too

Orangemagic

iTrader: (2)

Thats nice to know. I figured since it pressurized the whole system it never really changed much. Keep my mouth shut unless I know for sure

CarsandWomen

iTrader: (19)

thats the funny thing about FI, you can make great power and put up great numbers with crappy parts. But when you upgrade those crappy parts to awesome parts a FI car will respond better than a NA setup. Intakes especially, and when your talking about turbos you will not only see spool change but power and track times.

case in point, buddy has a Grand Prix turbo. he was using the supercharger case as his intake manifold, it was gutted and empty. when he switched to an intake manifold from a NA Grand Prix he gained power, saw full spool about 500rpms sooner and his 60 foots got a hair quicker.

fuzzyjk

iTrader: (4)

Thanx for the advise!