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i posted this in general maintenance but didnt get a response, so i thought i'd try in here.

ive bought an n1 oil pump for my rebuild and ive been told by justjap that theyre a direct fit for rb25det. ive also heard from other sources that they arent a direct fit and need to be modified somehow, he said the actual pump needs to be modified, not the crank collar (which is what is needed for the rb30 I THINK).

whats the story with them? do they or dont they need to be modified?

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https://www.sau.com.au/forums/topic/110104-n1-oil-pump-on-rb25det/
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Why not street use? Arent there heaps of GTR's that run this pump on the street?

the n1 variants are for track use only and not street use.

i think i recall reading they are in fact worse for a street car.

they are designed for high constant revving and not plodding around a street, idling etc

another classic example of how this moderator is not helping the forum! =( Isn't it best not to comment if you don't know for sure what you're talking about?? talk about fundamentals.

I too can confirm it fits directly no modifications required. What people suggest in terms of modifying your rb25 setup, is the restriction of oil to to the head, as people have commented on this forum, that not enough oil is left in the sump at the pickup. To get around this, you can install a front mount oil cooler kit to add to the amount of oil capacity. It is recommended that a larger aftermarket sump be fitted if you intend to be constantly revving (ie drifting) or track use. But if not, then it will be fine.

another classic example of how this moderator is not helping the forum! =( Isn't it best not to comment if you don't know for sure what you're talking about?? talk about fundamentals.

I too can confirm it fits directly no modifications required. What people suggest in terms of modifying your rb25 setup, is the restriction of oil to to the head, as people have commented on this forum, that not enough oil is left in the sump at the pickup. To get around this, you can install a front mount oil cooler kit to add to the amount of oil capacity. It is recommended that a larger aftermarket sump be fitted if you intend to be constantly revving (ie drifting) or track use. But if not, then it will be fine.

what are you on about?

some of the stuff in your post isnt exactly accurate either :dry:

each to thier own

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