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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

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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.

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 :thumbsup:

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

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.

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