LS6 Intake Manifold SOTP gain?
LS6 Intake Manifold SOTP gain? Okay, again, I'm comming from over 2 hours of search time, so don't flame me too hard. I know the LS6 Intake manifold is good for approximatly 15hp at the wheels. How is this in the S.O.T.P.'s? Good / worthy mod, or waste of time. I know a lot of people buy it, and want to swear by it, but be real w/ me for a minute. Thanks a ton guys. Just doing my homework for my next mod. 
I don't think you will see a 15rwhp gain on a stock internals motor, maybe almost 10rwhp depending on your other bolt ons.
Might not even feel too much SOTP either but I'm sure track numbers will improve from it.
Might not even feel too much SOTP either but I'm sure track numbers will improve from it.
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From: CT,
just like he said,
It would not be that notice able , but it will show about a 1/10 at the track, it is like the airlid it shows gains but you dont really feel it.. to be realistic you might see 7 to 10 hp on a stock motor,
Personally I would get rid of the flowmaster for a different one, hooker/magnaflow ..or do a FTRA or a asp pulley first, those will net you close to the same.....IMO
Is your car an auto or a stick, if its an auto I would buy a torque converter...
It would not be that notice able , but it will show about a 1/10 at the track, it is like the airlid it shows gains but you dont really feel it.. to be realistic you might see 7 to 10 hp on a stock motor,
Personally I would get rid of the flowmaster for a different one, hooker/magnaflow ..or do a FTRA or a asp pulley first, those will net you close to the same.....IMO
Is your car an auto or a stick, if its an auto I would buy a torque converter...
Last edited by boomcase; Aug 13, 2004 at 08:29 AM.
Originally Posted by OWENMUSTANG
looks worth it when you do the cam 
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From: San Diego, CA
first mods done all at once...SSRA, SLP maf, bellow, holley filter. lid., ported TBbypass!
felt a nice increase ascross all rev range! sounded better and pulled harder....
then the FLP headerswith no cats and cut-out....
sounded great you could feal a torque increase and in the top end!
suspencion all at once also.....BMR, stb, lca sfc, phb....
h/c, intake...... stage 2 heads, 224 comp cam, and an LS6 intake....
cant describe......AWSOME !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
but i wish i could have tdonr them 1 at atime but o well?
felt a nice increase ascross all rev range! sounded better and pulled harder....
then the FLP headerswith no cats and cut-out....
sounded great you could feal a torque increase and in the top end!
suspencion all at once also.....BMR, stb, lca sfc, phb....
h/c, intake...... stage 2 heads, 224 comp cam, and an LS6 intake....
cant describe......AWSOME !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
but i wish i could have tdonr them 1 at atime but o well?
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From: The South
Originally Posted by CaptUSA
You mean if I were to put in the cam and the intake at the same time it would be worth is? Cam is 215/220 .600/.525 114lsa.
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Originally Posted by CaptUSA
You mean if I were to put in the cam and the intake at the same time it would be worth is? Cam is 215/220 .600/.525 114lsa.
btw, if you don't have headers yet, i'm sure everybody would say do
headers before the cam...
The LS6 intake is not worth 15 RWHP. I saw tests in car craft on an engine dyno and it made at most 9 HP more than a LS1, and that's at the flywhee. I suspect on a stock engine it's around 6-8hp. On 3400lb car I don't think you'll feel it. I think it's still a good mod, but not before headers.
Originally Posted by Trojan T/A
Might want to wait a bit. I know there is a new intake coming out that made over 15rwhp than the early LS1 intake, and that was still using the stock, unported throttle body.
Also, do you know when? 
Originally Posted by Trojan T/A
Might want to wait a bit. I know there is a new intake coming out that made over 15rwhp than the early LS1 intake, and that was still using the stock, unported throttle body.
Originally Posted by Trojan T/A
Might want to wait a bit. I know there is a new intake coming out that made over 15rwhp than the early LS1 intake, and that was still using the stock, unported throttle body.
T T T
The LS6 intake will really help her out after the cam swap. Headers will compliment even more, but I realize your issues with The Man that you'll run into in Cali. Look into some mid-lengths, might be able to pull something off there. Get some Mac's and port the primaries, won't be giving much up to lt's at that point.
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From: The South
Originally Posted by cyphur_traq
The LS6 intake will really help her out after the cam swap. Headers will compliment even more, but I realize your issues with The Man that you'll run into in Cali. Look into some mid-lengths, might be able to pull something off there. Get some Mac's and port the primaries, won't be giving much up to lt's at that point.
Originally Posted by blkZ28spt
They both move the cats from the factory location and that is what matters.
Okay, I've been reading up on JRP's stuff again, and it looks like I would see gains from the shorties. I was under the impression before that only 99 and older would gain, but now I'm reading that the Y2K's will also accept the mod. I know what the hype is about these things, but maybe I'll start asking around from the guys who have them. Thanks for the help thus far. 