N1 Oil Pump On Rb25det

[SECURITY]

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?

[paulr33]

off topic as i cant answer your question but this pump is only suited for track race use and not street use

[bnr#@]

Why not street use? Arent there heaps of GTR's that run this pump on the street?

[SECURITY]

just need to know if its a straight swap guys.

[R31Nismoid]

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

probably cause it comes up so often

[paulr33]

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

[R31Nismoid]

N1 oil can be used on the street paul.

Its the water pump that isnt a good idea

[paulr33]

oh, my bad

[SECURITY]

ive read a few build ups where theyve used the n1 oil pump on rb25's without making any modifications to it. should be right.

[stav]

ive read a few build ups where theyve used the n1 oil pump on rb25's without making any modifications to it. should be right.

They are a direct replacement for RB25's no mods required, I have built several 25's using these pumps.

[SECURITY]

thats exactly the type of reply i was looking for.

cheers stav.

[silman]

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.

[carl h]

might want to fit a crank collar so you dont eat the oil rotor in your new pump, that is if your crank needs it.

[R31Nismoid]

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

each to thier own

[silman]

It's blatantly obvious what i was referring to, and i'm open to hearing what isn't exactly accurate here.