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Ok guys before i get nailed for this i have done my research and I am well aware that a standard R34 GTR will handle 350awkw but ive only heard this on forums.

Ive gone to several workshops (dont want to name places) and all of them so far have told me that I would need to be changing my frontmount.

Car is going to be a simple -9's setup: Turbo back exhaust, Tomei Type B camshafts, Nismo fuel pump + afm's+clutch, powerfc and boost.

From what i hear i will have 310 - 30awkw will be achievable with the above after tuning with the standard intercooler but as a few workshops have told me they become too restrictive and require more boost from the turbos to push through the same amount of power (+2 psi ontop of what i would need to run say if i had a cooler with bigger core)

Just wondering if anyone can clarify this for me?

Edited by PSI-FED

You're only going for really what is a 'mild' setup.

Spend the cash elsewhere. Sure there maybe an improvement... But you're not going to go from say 300 to 330 rwkw by a cooler change...

Definitely no need to change cooler for -9s

I'll hopefully have some back to back with a GReedy core late this year to help remove the doubt and show the GTR core is great for under 380-400rwkw.

do not bother with changing your intercooler.

i went from a R34 GTR cooler (60mm thick) to an ARC (70mm thick) cooler. and there was absolutely no difference!

this was the only change i made to the car, and the car still pulled 360rwkw on 24psi boost on E85.

i have -5's so they are a little bigger than the -9's i think?

there were no significant signs that the intake temps were too high or it was restricting flow too much. i thought by changing it, i would've been able to hit my power goal of 500hp but it looks like i might have to try a set of poncams.

also, i wouldnt bother with poncams for anything up to 350kw, my std head pulled 369rwkw and this was without adj cam gears.

with the poncams, you will lose response for very minimal gain if at all for anything under 350kw.

Also pretty interested in the difference over a R32 R33 GTR cooler.

Have read and been told they have a higher flow?? or slightly better core which allows better cooling?

Currently have a R34 Gtr cooler to put into my R32 Gtr.

My favourite one is people expecting more power by upgrading R32GTR stock injectors with R34GTR stock injectors

i can vouch for this one!

but its only because my R32 GTR injectors were leaking really badly. whenever i drove it all you could smell was fuel!

do not bother with changing your intercooler.

i went from a R34 GTR cooler (60mm thick) to an ARC (70mm thick) cooler. and there was absolutely no difference!

this was the only change i made to the car, and the car still pulled 360rwkw on 24psi boost on E85.

i have -5's so they are a little bigger than the -9's i think?

there were no significant signs that the intake temps were too high or it was restricting flow too much. i thought by changing it, i would've been able to hit my power goal of 500hp but it looks like i might have to try a set of poncams.

also, i wouldnt bother with poncams for anything up to 350kw, my std head pulled 369rwkw and this was without adj cam gears.

with the poncams, you will lose response for very minimal gain if at all for anything under 350kw.

Thanks for the advice mate.

I was well aware that the standard cooler was fine but just speaking to a few workshops got me abit confused and I dont think its a money making issue because i specified to them that i'd be fitting the cooler on my self.

Im interested in your statement in regards to the poncams you made, can someone please elaborate abit more on it? I couldnt resist getting them at the price that i found them but didnt realise they would be a hinderance to my setup instead of a benefit..

the poncams wouldnt be too much of a hindrance on your setup.

but in all honesty you'd probably be better off with std cams and some cam gears for those turbo's

you'd get better response and the turbo's would probably max out before the std cams would.

i'd offer to buy the poncams off you at a good price ! :rolleyes:

but you've got a R34 GTR and i have a R32 GTR, i dont think the cam's are interchangable.

i think the R32&33 ones are the same and the R34 has a different CAS?

  • 4 months later...

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