what Posted March 29, 2006 Share Posted March 29, 2006 I am looking at upgrading.. a pretty good bit. I am looking to get over 350 hp at the wheels and wondering if anyone knows how much the plastic intake manifold can handle.. either HP or boost?? Link to comment Share on other sites More sharing options...
edmundu Posted March 29, 2006 Share Posted March 29, 2006 I don't know how much it can handle max, but Jarrad of PDXTuning is running it on his rotated mount gt30R setup. To the tune of 400whp! I believe a customer of Harman Motive is also using the plastic manifold on an STI, and it also is a rotated setup with I believe a gt35R. So you can rest easy knowing that this plastic manifold is able to support some big number's.... Link to comment Share on other sites More sharing options...
PeterJMC Posted March 29, 2006 Share Posted March 29, 2006 If you do keep the stock TMIC, I would keep some cash ready to spend incase of emergency. There have been posts where the tabs started to break or become loose on some modded leggys. Link to comment Share on other sites More sharing options...
LotusSeven Posted March 29, 2006 Share Posted March 29, 2006 The manifold will handle more than the factory (plastic end tanks) intercooler. Heavy Metal Killed Beethoven Support Classical Music Link to comment Share on other sites More sharing options...
what Posted March 29, 2006 Author Share Posted March 29, 2006 cool.. thanks for the info so far, I would be replacing the intercooler with my upgrades, I am planning on getting a FMIC. Link to comment Share on other sites More sharing options...
firedawgs Posted March 29, 2006 Share Posted March 29, 2006 Plastic = cooler than aluminum. Updated my vBGarage: Link to comment Share on other sites More sharing options...
jsalicru Posted March 30, 2006 Share Posted March 30, 2006 BOXRPWR hit 380whp with 100 octane using the stock LGT manifold. My friend's STi hit 380whp on 91 octane with his GT30'd STi that uses a flipped LGT manifold.. 100 octane tune on that car is pending. "some say, his arms are made of coiled adamantium fibers. And that he tops his cereal with nuts and bolts. All we know is, he's called the Jose." Link to comment Share on other sites More sharing options...
Irrational Exuberance Posted March 30, 2006 Share Posted March 30, 2006 Plastic = cooler than aluminum. plastic = asian car billet "i like my women the way i like terrorists... ...screaming gods name and ready to explode." http://img255.imageshack.us/img255/5479/troy3nu5.jpg Link to comment Share on other sites More sharing options...
telum01 Posted March 30, 2006 Share Posted March 30, 2006 you should be fine. if you look at the new '06 wrx's, they have plastic attached directly to the turbos. the first time i saw it, it blew my mind. i would have thought the turbo would melt the plastic, but i guess it's made to resist the heat. go for it, and like peterjmc said, just keep some money handy in case of emergency. Link to comment Share on other sites More sharing options...
Th3Franz Posted March 30, 2006 Share Posted March 30, 2006 Yeah I haven't heard any issues.. the stock TMIC is another story, and I assume that is what you are referring to with the tabs. Plastic.. good insulator and lightweight. -Franz The end of a Legacy http://www.youtube.com/th3franz Link to comment Share on other sites More sharing options...
firedawgs Posted March 31, 2006 Share Posted March 31, 2006 If I ever get my set up done, I will see if the stock intake will handle 400whp. Updated my vBGarage: Link to comment Share on other sites More sharing options...
Deer Killer Posted March 31, 2006 Share Posted March 31, 2006 If you do keep the stock TMIC, I would keep some cash ready to spend incase of emergency. There have been posts where the tabs started to break or become loose on some modded leggys.People would upgrade there cars to this much power and have no cash available to fix a TMIC? uh-huh.. so sad.. Link to comment Share on other sites More sharing options...
Xanth Posted March 31, 2006 Share Posted March 31, 2006 I was talking with a friend when I was considering an STI swap, he suggested I actually stick with plastic manifold. He believes the plastic resists heatsoak with its low thermal conductivity and is in no danger of blowing out. Noting that the japanese craftmanship with such plastic components is top rate and that the amount of boost psi most people are willing to put through a stock bottom is no threat to it at all. I really do trust his opinion, I'm going to stick with it. Link to comment Share on other sites More sharing options...
telum01 Posted April 1, 2006 Share Posted April 1, 2006 I was talking with a friend when I was considering an STI swap, he suggested I actually stick with plastic manifold. He believes the plastic resists heatsoak with its low thermal conductivity and is in no danger of blowing out. Noting that the japanese craftmanship with such plastic components is top rate and that the amount of boost psi most people are willing to put through a stock bottom is no threat to it at all. I really do trust his opinion, I'm going to stick with it. sounds sound Link to comment Share on other sites More sharing options...
05BluePearlGT Posted April 3, 2006 Share Posted April 3, 2006 As long as you are tuned nicely, you should be fine. Detonation will be the IM's enemy. But you should be good, unless you are gonna make a 800whp beast, lol. I dont know how much it can handle though. 800whp would be nice, especially with the stock turbo... Link to comment Share on other sites More sharing options...
05BluePearlGT Posted April 3, 2006 Share Posted April 3, 2006 Mine was way crappier on my civic. I boosted 10-13psi on it, which is a LOT on a stock civic motor. It never had a prob. I even had to shave some of it down to fit my oil return line. It got a little hole in it, and we j-b welded it back shut, haha. It never had a prob though. Unless thats why my idle was up and down, up and down when I sold the car, hahahaha. probably.... Link to comment Share on other sites More sharing options...
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