alternative intake manifold?
alternative intake manifold? just wondering what other intake manifolds if any would work with ported and polished stock '95 LT1 heads? i have a turbo and looking to get Tim Talyor'ed..." more power " not anytime soon, just fishing for information is all
Just to help you out substantially. The LT4 intake is internally the same as the LT1 intake.
Point being just because folks try to "help" does not mean they are helpful. There is MORE bad information shared on forums than good.
Lots of folks will tell you single plane is the ticket but it is really more of the current fad. Most of the guys I trust who have tried it have said it is not all that and not worth the hassle on the vast majority of cars. It takes a lot to earn my trust.
You will see a lot of mediocre single plane results being hyped as spectacular but if you pay attention you will see milder setups going faster with mildly worked LT1 intakes.
There are cases and applications where a single plane is a good choice, but most guys are too quick to jump on that bandwagon and then they use the wrong intake.
Point being just because folks try to "help" does not mean they are helpful. There is MORE bad information shared on forums than good.
Lots of folks will tell you single plane is the ticket but it is really more of the current fad. Most of the guys I trust who have tried it have said it is not all that and not worth the hassle on the vast majority of cars. It takes a lot to earn my trust.
You will see a lot of mediocre single plane results being hyped as spectacular but if you pay attention you will see milder setups going faster with mildly worked LT1 intakes.
There are cases and applications where a single plane is a good choice, but most guys are too quick to jump on that bandwagon and then they use the wrong intake.
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If I had the money to dump into a single plane, I'd dump it into that one setup someone found here, that are essentially mini single barrel TBI units. Or EFI Velocity stacks, all depends how you look at it. The company even makes a fitting for boosted applications, and they have an Edel (I think it's Edel) cross-ram individual runner intake and their "TBIs" for I think it was $2500.
To be more serious, it all depends where you plan to go, and how much boost you plan to run. You'll really need your motor built up before you'll actually need a new intake. Now, even with 8lbs, a better intake would help, but only because it would offer more plenum space or longer runners. So not so much the stock intake becoming a restriction. Are you running single or twin turbos?
To be more serious, it all depends where you plan to go, and how much boost you plan to run. You'll really need your motor built up before you'll actually need a new intake. Now, even with 8lbs, a better intake would help, but only because it would offer more plenum space or longer runners. So not so much the stock intake becoming a restriction. Are you running single or twin turbos?
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96caprice is right.
The one and only "fair" back-to-back test I saw had the single plane out-performing the LT4 by about 15 rwhp, and that was on a very stout solid-roller AFR220 setup, and the gains were only above 6200 rpm. The single plane lost power below 5200 rpm.
With a turbo setup, you can gain or lose 100 hp by turbo selection alone. Also, you have more custom fab work and parts chasing to do than most want to, so adding in a single plane will multiply your troubles x2.
All that, and the LT1 intake has been proven beyond 1000 rwhp and down into the low 9's, high 8's. So, unless your goals are beyond that, don't worry with it. Quite frankly, if you're still fooling around with the LTx, then you're probably not shooting for 1000+ or 8's.
Mike
The one and only "fair" back-to-back test I saw had the single plane out-performing the LT4 by about 15 rwhp, and that was on a very stout solid-roller AFR220 setup, and the gains were only above 6200 rpm. The single plane lost power below 5200 rpm.
With a turbo setup, you can gain or lose 100 hp by turbo selection alone. Also, you have more custom fab work and parts chasing to do than most want to, so adding in a single plane will multiply your troubles x2.
All that, and the LT1 intake has been proven beyond 1000 rwhp and down into the low 9's, high 8's. So, unless your goals are beyond that, don't worry with it. Quite frankly, if you're still fooling around with the LTx, then you're probably not shooting for 1000+ or 8's.
Mike
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^ ITBs are sick. I was going to make a manifold out of two sets of 2007 GSXR 750 throttle bodies. I bought them and then learned that they were way too small for what I wanted to do.
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I adore the Extrudabody! I like it much more over the first one 
Googled those TBs from the GSXR, yea those look only about 1-1/2" diameter each, MAYBE 2"
http://lander.tuning.cz/images/swiftkc/itb1.jpg
Googled those TBs from the GSXR, yea those look only about 1-1/2" diameter each, MAYBE 2"
http://lander.tuning.cz/images/swiftkc/itb1.jpg
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lol I think the word you're looking for is "mean" 
I'd be happy to run that setup, even if by some odd chance I lost power Which DesktopDyno shows is the case. A drop back down to TPI HP and TBI TQ heh. I actually doubt that would be the case with it though.
I'd be happy to run that setup, even if by some odd chance I lost power
Which DesktopDyno shows is the case. A drop back down to TPI HP and TBI TQ heh. I actually doubt that would be the case with it though. 