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Old Aug 30, 2010 | 09:56 AM
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Default Input on intercooler sizes

So I've got alot of parts still from my turbo miata and looking to use what I can from it if I can. So I'm curious what size intercoolers you guys are running. For now it'll be low boost maybe around 350hp till I decide to step up to 20psi with a th400 etc. So the rough measurements I have of my current IC are 21x9x3 not counting the end tanks. I would assume this should be plenty fine for low power but figured I'd go ahead and see what size you guys are running for when I decide to step up. Thanks
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Old Aug 30, 2010 | 12:42 PM
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What you have should be more than adequate for 350hp.
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Old Aug 30, 2010 | 01:08 PM
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Im running overkill..31x12x3 with 3'' inlet/outlet..but will be making up for it soon.
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Old Aug 30, 2010 | 01:17 PM
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sounds bigger then the supra's stock SMIC... You should be fine for a while.
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Old Aug 30, 2010 | 02:06 PM
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Thought so thanks alot guys
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Old Aug 31, 2010 | 02:40 PM
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Ok I got the answer about the IC I have now but would still like to know what you guys are doing with around 500-500hp?
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Old Aug 31, 2010 | 02:56 PM
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a big front mount should get the job done just fine. I used to use a 12x24x3.
If you are na-t w/stock intake manifold your intake temps will be higher than on a front facing gte manifold, so its a good idea to step up your cooling in this case.
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Old Sep 1, 2010 | 02:14 PM
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When I get around to the na-t swap I'll be a FFIM too. Seems stupid to me to have the intake sitting on top of the turbo
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Old Sep 1, 2010 | 02:54 PM
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Originally Posted by JohnMatt
When I get around to the na-t swap I'll be a FFIM too. Seems stupid to me to have the intake sitting on top of the turbo
Anyone would agree with you, but there are other considerations ($$$$)
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Old Sep 2, 2010 | 06:55 AM
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I was thinking of using the DM greddy look alike but haven't researched it much yet

Edit: Nvm I might do the GTE top and GE lower intake conversion though

Last edited by JohnMatt; Sep 2, 2010 at 07:28 AM.
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Old Sep 2, 2010 | 08:10 AM
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I am using the BL I/c kit which uses a precision intercooler and 2.5" piping. Its rated to 850hp but I have surpassed the efficiency a long time ago. Meth injection helps allot. I believe it measures around 12x24x2.75.

Lawrence
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Old Sep 3, 2010 | 03:09 PM
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What setup do you have to surpass the efficiency of that kit and intercooler?

Any recommendations for when 2.5" pipe is considered a restriction?
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Old Sep 4, 2010 | 05:50 PM
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Originally Posted by JohnMatt
What setup do you have to surpass the efficiency of that kit and intercooler?

Any recommendations for when 2.5" pipe is considered a restriction?
Na-t built motor, Pt76gts @32psi , Th400, etc..

Not sure on what power level the 2.5" piping will become a restriction. I seam to keep on making power with every pound of boost above 30psi. Right now I have it set maxed out the wastegate spring at 32psi. I probably should increase the I/c and get rid of the stock intake manifold and throttlebody but she keeps making power so untill I feel i have maxed it out. I think I will keep it untill then. I also plan on spraying it with a 150 shot, as I need to pick up a few mph in the quarter.

Lawrence
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Old Sep 4, 2010 | 08:05 PM
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I think you're beyond the power I'm wanting to run. I like high horsepower cars yes but I don't see myself going over 550hp or 20psi on a billet 6765 down the road. What kind of times are you running with that setup? Mid-low 9s???
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Old Sep 5, 2010 | 04:45 PM
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Originally Posted by JohnMatt
When I get around to the na-t swap I'll be a FFIM too. Seems stupid to me to have the intake sitting on top of the turbo
They didnt make that intake mani with turbo in mind.

At least when you hook up Methanol / spray the NA manifold will distribute it more evenly than the GTE. You can also just insulate the intake pipe so it really is not that big a deal.

2 cents

Last edited by lfrers; Sep 5, 2010 at 04:51 PM.
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