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hi guys i need to upgrade my standard gtr intercooler with a bigger better direct replacment item. im chasing 470/500rwhp and need limited pressure drop prices so far are jj cooling pro 600x300x100 $500 and PWR 600x300x76 $850 im not worried about price just many rwhp limits and pressure drop im running twin hks 25/30 and want 1.3 bar and am just trying to get the least pressure drop and cooler range. any info from people with upgraded intercooler would be great

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either stick with stock I reckon or go the whole hog with a nice japanese cooler. can't go past the ARC cores, in all probability they are the best in the business.

I know of a particular car making closer to 400awkw still using the factory GTR intercooler

I know of a couple aswell...

Cant be that bad if people are using them.

danoz - do you even know if there is going to be a pressure drop?

Have you measured one?

I'd leave as is, you can always measure it later on and then refit accordingly

Yes you cn make power with the stock cooler, but at the expense of pumping more boost into the hot side of the cooler than needed.

We have a TRUST 600x300x115 cooler on our car at the moment and we have found that we are also starting to get a drop across the core.

We are looking at getting a custom core with the size being 700x340x150 made up so we don't have these problems again.

You can just get the big TRUST units like the 600x 300x 165 and you would be done.

Keep in mind that the larger an intercooler the more air it holds, the more inertia this causes and hence lessens the throttle response. Personally (for what I use mine for) I would give away a couple of psi of pressure drop for an improvement in reponse. It all comes down to what you use the car for.

:wave: cheers :)

PS; the best I have seen out of a standard R33GTR intercooler was 450 rwkw.

Edited by Sydneykid

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