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Old 03-07-2003, 09:39 PM   #16
colbs19
 
Join Date: Mar 2003
Location: JAX, FL
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Re: 300zx intercooler

Quote:
Originally posted by CoasTek240
ok qwik q?

planning on running my custom turbo setup, and looking at a 300zx smic the right side. it's cheap and seems big enough.i will mount it whereever piping fits.. the issue is.. will it cool sufficently for 7-9 psi...?... i know the two combined cool 30 psi on my friend z32tt... so i'm wondering if it'll be sufficient?... hows the pressure drop btw?
Just a couple of comments, reguarding your friend's 300zx, just to set the record straight (or FYI) your own benefit of knowledge.

30psi on the stock internals, stock 370cc injectors, and stock intercoolers on a VG30DETT is absolutely NOT possible, unless you are shooting for a nice explosion. I submit the following info for you:
*Stock injectors max out at about 15-18psi or around 500hp (depending on levels of tuning) After that point the engine would be running lean and detonation would occur
*Stock intercoolers start to become insufficient around 13-15psi due to the massive amount of hot air in too small of a cooling area to cool it to a dense enough charge to due the job.
*Stock internals will simply not hold up to more then 18psi without replacing the pistons, rods, valve springs and everything else with Titanium...lots and lots of Titanium

That being said, and getting back to the point of your post:
For your application, the stock Z32 intercooler would work fine for any boost level under 15psi. If you decide to actually build this custom turbo setup and need any info or are looking for the intercoolers, let me know. I have a set of stock intercoolers in my garage which I just replaced with Stillen ICs and I wouldn't mind helping with some input.
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-=Colby=-
1991 300zx Twin Turbo Stage VI
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