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Oil/water Pump Upgrade

druzilla32

By druzilla32,
in Engines & Forced Induction

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Sydneykid Grand Master

Sydneykid

Posted
Posted

This subject is much written about, so I will keep it brief, if you want more info do a posts search ("Sydneykid" and "N1 oil pump").

1. N1 is for RB26's, there is no N1 stuff for RB20/25/30

2. All of the recent N1 oil pumps are designed for the large diameter (R33GTR or later) cranks and don't fit RB20/25/30 cranks. You need to buy (make) and adaptor (collar)

3. N1 water pumps actually flow less than standard RB26 water pumps. They are designed for sustained high engine rpm as encountered in circuit racing. Not driving in traffic, with the aircon flat out, on a 40 degree day.

4. N1 oil pumps do not flow any more than standard RB26 oil pumps. They simply have a higher rate pressure relief spring, so they hold a higher pressure. But only when the pump is capable of supplying sufficient flow to maintain that pressure.

5. If you want a higher flowing oil pump, then the aftermarket brands (Jun, HKS, Trust etc) are an expensive choice. Dry sump systems are not much more and give a far superior result.

6. Speaking of sumps, GTR sumps are not so good for circuit work. I wouldn't be taking a GTR anywhere near a circuit without bafffles. For any decent track time, wings, one way doors and baffles are essential.

:D cheers :D

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Baz Experienced

Baz

Posted
Posted

Contacted a Nissan Dealer in Perth as well and was quoted the same price as Bu5ter. Just a matter of finding someone who can help you buy it at the listed price.

Cheers,

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