Interchangable Rb Oil Pumps

[wildeagle44]

Just like to get a confirmation before I go ahead and buy another pump.

Are rb oils pumps interchangable. Specifically rb20,rb25 and rb30. I don't want an N1 as i don't have a crank collar and I can get a standard rb20 pump at a good price..

Found this thread: http://www.skylinesaustralia.com/forums/topic/123932-interchangeable-parts/

which says yes but double checking before I commit.

Thanks

[Ben C34]

Yes

[89CAL]

Do the 20 pumps flow as much as a 25 pump (if thats what your putting it on)

Dont know if they are internally different at all but you dont want a pump that flows less oil

[Ben C34]

Sorry should have elaborated. They will all bolt on but will flow different amounts.

[R_34]

I don't know about the RB25 oil pump but the rotor of the RB20 is 9.3mm thick whereas the RB26 is 11mm thick.

I couldn't source a RB20 oil pump for my 20. I installed a 26 oil pump and it's working like a charm.

[Ben C34]

The thickness, along with teeth count etc determine how much it flows, so thinner equals less flow.

[wildeagle44]

Right so i should really only be putting on a 25, 26 or 30 pump? As these would flow the same if not more?

I'll pull the 25 pump off and measure first.

Trying hard to steer clear of an n1 simply because of the crank collar.

[Ben C34]

The na 30 pumps less than the turbo 30 pump. They are all different butwill allbolt on.N1 pumps break due to huge revs and potential misalignment caused by line boring, combined with the small drive contact on the crank. All pumps barely make contact on the crank drive. what are your goals for the engine?

[wildeagle44]

The na 30 pumps less than the turbo 30 pump. They are all different butwill allbolt on.N1 pumps break due to huge revs and potential misalignment caused by line boring, combined with the small drive contact on the crank. All pumps barely make contact on the crank drive. what are your goals for the engine?

Used in a drift car. So high revs constantly.

Makes 260kw so not huge power.