Has Anyone Used Just Jap Intercoolers On Gtr's

[Brezza]

Hey Guys,

just wondering whether people have used the Just Jap brand intercoolers for GTR's pushing more than 350rwkw

i managed to get 351rwkw still using a stock R34 GTR intercooler on my GTR

but i think it suffers a little from heat soak at that power level, its running over 20psi on -5's

am debating whether to get a 100mm core just jap one?

[R31Nismoid]

I can think of 3 R34's making 380rwkw/-5s (20-22psi) through factory coolers down here without a problem.

It sounds like you haven't actually confirmed you are getting soak. Could also be your core could do with a bit of a clean even.

So I'd certainly suggest spending some time checking out your setup in more detail - no point upgrading if you dont know if its a problem.

That said, if you needed to upgrade for that power range i'd be looking in the For Sale and pickup a jap one a bit cheaper

100mm you might not even need to go that big.

(side question, whats the thickness of stock? I cant remember off the top of my head atm )

[DAS KAMU]

where do you go to get your cooler cleaned

[DVS JEZ]

take it off at home, good clean with degreaser and a good flush with water, do this till the water comes out the other end clean.

then let dry overnight end in the air with rags over the holes. refit the next morning,

[DAS KAMU]

take it off at home, good clean with degreaser and a good flush with water, do this till the water comes out the other end clean.

then let dry overnight end in the air with rags over the holes. refit the next morning,

oh cool

now how do i get the front bar off

[Beer Baron]

stock cooler is about 60mm in the core.

personally I'd go with a 70mm japanese intercooler, like ARC. they are nice and thing. the problem with the 100mm cores is they rob your radiator of almost all it's airflow so you then end up with higher water temps or even overheating problems. then you buy a bigger radiator and the cycle continues and you've suddenly added a whole lot of weight right up the front of the car where you don't want it. have you ever picked up one of those china 100mm GTR coolers? they are bloody heavy. an ARC 70mm core is actually lighter than a factory GTR cooler.

[Mr. Untouchable]

without getting into all the gazillions of possible debates, here is the answer to your first question.

its a tassie built/owned car.

I personally would never put a $2k jap cooler on the front of my car unless i was racing for sheep stations, as they are so easily damaged being fairly expsosed. a while back someone at a set of lights rolled back into my GF's 33 and punched her big dollar blitz cooler with a tow bar :-/ And I had a bit of shit at the track fly up and mangle some rows & fins on mine awhile back also.

cheers

[James_03]

The 100mm drag just jap units don't fit without quite a bit of modification.

None of the factory inlet/outlet pipes line up, the lower mounts don't line up, and you need to hack the rad support away.

Go an ARC like Beer Baron mentioned if you need to upgrade at all.

Edited September 8, 2010 by James_03