TPIS 90mm ls6 intakes
found some other results here digging around for info on this intake. Here is a comparison from Lingenfelter on a LS7 427 shortblock with 12:1 compression with the 65 cc chamber Edelbrock heads. First one is a ported LS2 vs a FAST 90 and the second one is the Ported LS2 vs the TPIS 90MM LS6.
SO 4HP and 2FT LBS TQ difference???
SO 4HP and 2FT LBS TQ difference???
If I remember right, the LS6 is suppose to be better than the LS2. I wonder how close the ported LS2 flows compared to a stock LS6.
I figured being on a 427 the intake would have more of a gain. I'd be interested to see the comparison on a 346. I guess GM did do a pretty good job making the LS6 intake.
I figured being on a 427 the intake would have more of a gain. I'd be interested to see the comparison on a 346. I guess GM did do a pretty good job making the LS6 intake.
^^^^ good question. I was wondering the same thing . what we need to see is a stock LS6 V.S. a TPIS Modded one. I don't think it would be hard to make a 90 LS6 at home just need a LS2 mani and a LS6 one to cut up on.
Exactly. I want to see a stock LS6 compared to the 90mm LS6. Screw the LS2 intake, I read somewhere that it sucked and was one of GM's worst designs. It's the LS1 intakes retarded cousin or something similar.
haha dude, i was just using that for comparisons sake next to a fast. Disregard WHAT intake it is and look at the diff. between the fast gains and the tpis. Not a whole lot.
heh....no, I wasn't dissing your post. I appreciate you posting it. It does show this little hopped up LS6 can hold it's own if you can believe dyno graphs. I put my order in and shipping mine off tomorrow for the upgrade. I only wish I would have done another dyno run since I last did my heads and cam to get a comparison. Oh well, once I swap in a Polluter cam in a few months, I'm hoping to be close to 450 hp in the end and that will be just fine with me for a nice street ride. 
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I plan on going this route as well. Lingenfelter has a comparison on their site and its w/in a few hp of the FAST. Since I only shift @ 6400 I wont really benefit much from the FAST, so I figure TPIS ($350) + $400 tb= $750, or a FAST/tb combo for $1100. I'd rather save $350.
Great value and nice jump in power at a much better cost. 
for the 90mm snout, which tb would you guys go with?
does any here have this particular one that can take pics of it?
i tried googleing their website, but..no luck. (nevermind, found it!)
thanks!
does any here have this particular one that can take pics of it?
i tried googleing their website, but..no luck. (nevermind, found it!)
thanks!
Last edited by jegten; Jan 8, 2009 at 01:52 PM.
Well i looked into making one at home too and i guess its almost impossible to fuse it together but i talked to TPIS and the **** they used is like $3,000 a quart probly some special mix **** we will never know how to get our hands on
Nice pics does it look like they just used a new snout or is it a new snout and new tube behind it till it hits the actuall intake?
O ya wonder how hard it would be to make your own throttle body instead of buying one?
O ya wonder how hard it would be to make your own throttle body instead of buying one?
Last edited by CRAGER; Jan 13, 2009 at 06:24 PM. Reason: dbl posting
Well guys i just bought a LS2 intake yesterday and i am goin to put it up against the tpis ls6 some how i am goin to port the ls2 just a bit to get it smooth and goin to hunt down the cheapest ls6 i can find and in march have tpis do the 90mm hhope fully i can use the same 4 bolt TB for both (i am goin to call and find out tomarrow) I can snag the dyno from school and tune the can in w the ls2 annd pull it off and tune it back in with the ls6 90mm and get you guys the results.......On TPIS web site the LS2 performed Like the LS6 90mm did on there site comparison on page 2 on this thread:
https://ls1tech.com/forums/generatio...intakes-2.html
Let me know what you guys think i know the head to head test was done on a big CI motor but the one i just posted the link to is on a 346 CI witch probly alot of us have.
https://ls1tech.com/forums/generatio...intakes-2.html
Let me know what you guys think i know the head to head test was done on a big CI motor but the one i just posted the link to is on a 346 CI witch probly alot of us have.
Sounds good. Post the results. Here's some more pics of a TPIS modifed LS6 intake guys.
https://ls1tech.com/forums/showthrea...ferrerid=13535
https://ls1tech.com/forums/showthrea...ferrerid=13535