Intercooler Gains

[nomnomv8]

you guys making over 300+kws with standard oil pumps or are they aftermarket?also ARC are the best flow on the market.

I dare say most of the motors making that power are unopened and have never come out hence running standard oil pumps

[BCNR33GT-R]

thats pretty good power from standard id say they would have to have at least turbos ect..

[sydking]

In the new PI magazine, the r32 gtr "gmaster" made 360kw with stock r32 cooler, then changed to an r34 cooler and made 380kw, then again changed to a cooling pro 76mm core and made 411kw....

All runs done on JEMs Dyno...

51 KW gain for changing an intercooler- Id like to see the graphs. Also would like to know if the gtr cooler was in good nick.

[SiR_RB]

I'm just stating what I read....

Glad my car came with an ARC front mount

[TTT]

I've got an ARC return flow FMIC on my R32 GTST.

It'll be getting replaced by a stock R32 GTR cooler.

[R31Nismoid]

As for the XR6 cooler debate its really not a fair comparisson putting a 4L I6 next to a 2.6L I6.

The Barra can push out 320rwkw out of 12psi with not too much difficulty. Compare that to the conventional 18 - 20psi to get the same power level out of your typical twin setup RB (purely going by the results I have seen in the RB26 Dyno thread in the past).

A RB30 will need 17psi for the same power as a RB26 will @ 20psi (for example) - it's still the same amount of air, there is just less restriction (boost). It's as much about the volume & cooling that volume as it is about the pressure. Both need to be taken into account....

And it's totally fair, it's and intercooler. If it's tested to flow fine @ 25psi+ and does the job - then size is irrelevant, this is why i was going to use one

sorry was this on BP pump or E85 / Water meth??

BP Ultimate ususally

you guys making over 300+kws with standard oil pumps or are they aftermarket?also ARC are the best flow on the market.

N1 here (3 times). But thats a whole different debate, search and start reading for that

[Anz32GTR]

yeh im runing a new 33 gtr oil pump in my 32 but machined the collar on which it sits on for a wider base.

[GTSBoy]

The core Nizpro use for their XR6 upgrades flows enough for 400-450rwkw and these cars are well proven. From memory it's roughly:

400mmL x 300mmH x 76mmD

Now look at a Greddy replacement size:

600mmL x 284mmH x 76mmD

If Nizpro cores that are pretty much the same size as a GTR core (GTR is actually larger)... and they flow easily 400rwkw... I don't see why it's so hard to believe a GTR one, or sized replacement, can't?

The Greddy GTR core is smaller (in internal flow area) but has longer tubes. Ergo, it will have a higher pressure drop. So I would say that raw cooling ability aside, the GTR core should be flow limited to a lower power ceiling than the Nizpro XR6 core.

[Moodles2]

Doesn't ARC make intercoolers (well did until they went under) for Nismo? Why would you go back to a factory GTR cooler.

[TTT]

Because I like OEM parts where I can.

Also more air for my radiator through the GTR core.

[BCNR33GT-R]

Are the R33 GTR oil pumps N1

[Piggaz]

Are the R33 GTR oil pumps N1

No.

[nomnomv8]

Are the R33 GTR oil pumps N1

As piggaz stated above. Standard GTR oil pumps are the most fail creation known to mankind

[BCNR33GT-R]

yeah ive heard,so the R34 gtr is N1 pump true?

[R31Nismoid]

No the N1 pump is the N1 pump.

The standard GTR pump is the standard GTR pump.

There are two different part numbers. Not often you hear of a stock motor crapping and oil pump either.

[BCNR33GT-R]

There are two different part numbers. Not often you hear of a stock motor crapping and oil pump either?

so your saying the gtr pump is good for standard setup maybe diff turbos and cams..

[GTSBoy]

No because different turbos and cams implies quite a lot more power and probably revs than stock.

[BCNR33GT-R]

yeah thats true.

[Anz32GTR]

the factory gtr oil pumps are fine.. its the collar they sit on, it just slips then the pump fails.

[Piggaz]

No because different turbos and cams implies quite a lot more power and probably revs than stock.

Didn't know oil pumps had a power rating.