Rb25 Bottom End Build Oil Pump Choice

[boostn0199]

Im slowly building a rb25 bottom end on the side for my drift car. Nothing to crazy just forged pistons rods and will be 300-350kw. Now Ive been reading on oil pump choices and since my stock rb25 has been in my car for a few years and still going strong with no oil starvation issues I dont really see the point of going a high flow pump like a jun or nitto and doing all the oil control mods etc.

So something like a standard pump would do the job but people have reported that buying new standard pumps of n1 in the past few years have failed. I was thinking of just putting billet gears into the standard pump as my best option. What are peoples thoughts.

[nomnomv8]

You will find alot of the people bad mouthing the N1 pumps have had no real experience what so ever with them and are pretty much just parrotting 1-2 forum members on here who have had a bad experience with them.

IMO bang for buck the N1 pump is great and I have been in many cars running 300+ kw at the wheels and recieving regular belting without fail on an untouched n1 pump, each to their own but.

If you have money to blow go the Tomei pump, otherwise just stick to the N1 imo

[JonnoHR31]

Just get some billet gears for your standard 25 pump and a crank collar, should be more than strong enough.

[boostn0199]

Yeah thats what I was leaning towards collar and gears since I have had no trouble with oil issues and pump so I dont see the point in going high flow pump and then having to do all the oil mods to use it aswell.

[wolverine]

You will find alot of the people bad mouthing the N1 pumps have had no real experience what so ever with them and are pretty much just parrotting 1-2 forum members on here who have had a bad experience with them.

IMO bang for buck the N1 pump is great and I have been in many cars running 300+ kw at the wheels and recieving regular belting without fail on an untouched n1 pump, each to their own but.

If you have money to blow go the Tomei pump, otherwise just stick to the N1 imo

Older N1 pumps don't seem to be brittle like the current ones are.

[33GTRV]

look in the tutorials and diy section for a gear install and some pics.

[Dobz]

Just get some billet gears for your standard 25 pump and a crank collar, should be more than strong enough.

+1

What harmonic balancer are you using?

[boostn0199]

+1

What harmonic balancer are you using?

At the moment probably stock one doesnt see over 7500rpm so dont really see it as a real concern.