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N1 Pumps Vs Nismo Pumps

GTRsean

By GTRsean,
in Engines & Forced Induction

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GTRsean Grand Master

GTRsean

Posted
Posted

Just bringing up another thing on RB oil pumps.

Sydneykid and others have already brought up plenty of info on the various oil pumps and setups available at the moment.

I just want to know who has had any experience with the NISMO oil pumps that are available as well. They are roughly $900ish.

They are not N1 oil pumps, so they must be different, stronger?

Cheers

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GTRsean Grand Master

GTRsean

Posted
  • Author
Posted

Jun....hmm, better save up some more!

post-12712-1219273071_thumb.jpg

Here's a pic of a stock r33GTR pump vs an N1 pump I have pulled apart.

Wider and bigger gears, stiffer oil relief spring, more robust and flow friendly housing and a different shape pressure relief valve.

Haven't seen the inside of a Nismo pump.

  • 3 weeks later...
GTRsean Grand Master

GTRsean

Posted
  • Author
Posted

Okay, I'm going to use an N1 housing I have lying around and buy a new billet gearset that is made to suit the housing. It'll cost $550 for the gears.

They are CNC machined billet. The material they use doesn't require hardening.

Only doing this as I already have an N1 pump with gears I ain't gonna use.

Martin HKS Enthusiast

Martin HKS

Posted
Posted
if you got bulk keshhh HKS 3.2k

Edited by Blitz:

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GTRsean Grand Master

GTRsean

Posted
  • Author
Posted (edited)

????????????????????????????!

Great, now I don't know what pump it is...

I know the top on in my pic is definitely an R33GTR stock oil pump (it's out of my R33 engine).

What is the bottom one then.....I have another pic of it.

There are no nissan markings on the casting, the insie of pump has a smooth coating on it and oilways are cast for more flow compared to stock.

The gears are wider and larger in diameter than stock gears. 85mm diameter and 12mm thick.

Relief valve is different too. Also has roll pins x2 as locators?

post-12712-1221030021_thumb.jpg

Anyone?

Edited by GTRsean
GTRNUR Grand Master

GTRNUR

Posted
Posted
Edited by Blitz:

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3.2K for a pump! I thought that was a reason to not buy HKS! The 4 stage dry sump system on my vw race engine cost only about 1k more than that, and it could easily be adapted to a GTR engine.

I cant imagine why anyone would want bigger than a jun or trust pump and a nice 8lt upgraded baffle sump on 99% of nissan engines. Add some restrictors and isnt that the most proven reliable lubrication system out there?

Duncan Grand Master

Duncan

Posted
Posted

just a guess.....could it be rb30 or aftermarket rb30 alternative? surely if it was one of the jap brands they would put their name on it.

no-one likes to spend 4x what nissan charges and still miss out on the logo

T04GTR Grand Master

T04GTR

Posted
Posted

if it has an alloy plug for the relief valve, and a threaded block off on the side its probably a jun. but definatly aftermarket.

whats the back of the rear cover look like? did it have allen keys as aposed to screws holding it together?

could it be a rd30 diesel onE ???? who knows but its a go-er regardless.

duncan. the rb30 pump has a steel inner gear sleeve thingy. and is a spur gear type not a gearotor type. also smaller.

den001 Proficient

den001

Posted
Posted
if it has an alloy plug for the relief valve, and a threaded block off on the side its probably a jun. but definatly aftermarket.

whats the back of the rear cover look like? did it have allen keys as aposed to screws holding it together?

could it be a rd30 diesel onE ???? who knows but its a go-er regardless.

duncan. the rb30 pump has a steel inner gear sleeve thingy. and is a spur gear type not a gearotor type. also smaller.

definatly not a jun pump, jun pumps have a andoised red bolt for the spring and also the back casing will definatly say jun

GTRsean Grand Master

GTRsean

Posted
  • Author
Posted

It has no threaded block off.

Rear cover is flat and screws look the same as stock pump screws (countersunk philips), just one extra.

Couple of things, it was used on a narrow drive crank by the look of the inner gear :P

And the alloy pressure relief bolt had a valve shim to bump up the spring tension on the relief valve (you can see it in on of the pics in the plug lol).

  • 2 weeks later...

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