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N1 Oil Pump - Epic Fail

Rezlo

By Rezlo,
in Engines & Forced Induction

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Swiper the Fox Grand Master

Swiper the Fox

Posted
Posted
what's involved in doing a pump r and r in an R32 GTR with the engine in? doable within reason? those reimax gears look the goods.

you wouldn't do it...seriously, pulling the donk and doing it properly is a piece of cake. Id hate to see your anguish after seeing the sump leaking after trying to do it in the car only to go through the process again to try and fix leaking again.

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Marko R1
Marko R1

fuel cut explains the massive flames that gtr's shoot out on the limiter - most gtr's u will see in japan run this way. so my guess is that fuel cut is acceptable but not sure if its better or worse t

zebra
zebra

errr....might want to re-read what you just wrote Marko. No fuel = no flames

JonnoHR31
JonnoHR31

same shit for an oil pump, engine is still stopping and starting in the same way. the only difference would be between different ecu's, for example, a stocker rb30e ecu cuts fuel to all cylinders when

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shanef Grand Master

shanef

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Shanef ,can you elaborate on the powertune gears? are these sh1t ?

I wouldnt say they are shit, they are however made of a low grade material. They have a nice CNC machined finished aswell.

Saying that, in my view they can be improved upon in many ways :D.

Swiper the Fox Grand Master

Swiper the Fox

Posted
Posted
too late shane, whats the reason behind that though?

I threw the stock on in the bin, shit :D

they are a saw tooth gear design...not a gerotor like other RB pumps. Saw tooth pumps are less prone to breaking due to harmonic vibration.

Fastrotor Proficient

Fastrotor

Posted
Posted

Hey Paul, i was almost set on getting a Tomei pump for my 2530 , there like high $1600's delivered (well they were 2 days ago, now 1750.... but the dollar is set to climb apparently.)

Do you seriously reccomend a Nitto over one of these ? If so what can you do one for ?

Gary

Rezlo Community Regular

Rezlo

Posted
  • Author
Posted

Wow a lot more response than I thought,

I can see there is a lot of banter about N1, I agree any pump will fail due to serious abuse, but how often do you hear of any Greddy, Jun, Tomei, Nismo etc pumps just randomly failing even when not abused? Before I rebuilt the RB25 it had 6 times more abuse at similar and higher RPM than this N1 and the stock pump held just fine even with the crap 1/4 depth pump drive.

I am surprised no one has commented on the Nismo pump considering it is in the middle of the price range.

I am thinking about doing some testing on the materials used in as many of the pumps I can fidn, does anyone have any old parts of inner and/or outer ring's they would like to mail me (only need 10-15mm of each each), get a good profile of all the different pumps?

Swiper the Fox Grand Master

Swiper the Fox

Posted
Posted (edited)
Hey Paul, i was almost set on getting a Tomei pump for my 2530 , there like high $1600's delivered (well they were 2 days ago, now 1750.... but the dollar is set to climb apparently.)

Do you seriously reccomend a Nitto over one of these ? If so what can you do one for ?

Gary

Reslo bought, or is buying the last one from the group buy...around $500 cheaper than the Tomei pump. The Nitto gears are designed and manufactured in Germany and are made from superior material than any other OEM style pump. If Reslo pulls out of the sale the last one is yours, if not ill contact the group buy supplier to see if they will do another lot of 5 pumps at the reduced price.

Edited by DiRTgarage
shanef Grand Master

shanef

Posted
Posted
fark me, i took the cover off to have a look as well and being a noob though the saw design looked pretty rubbish

might go cry myself to sleep

back on topic

same design the tomei pump is based on, hence its awesomeness

Reslo bought, or is buying the last one from the group buy...around $500 cheaper than the Tomei pump. The Nitto gears are designed and manufactured in Germany and are made from superior material than any other OEM style pump. If Reslo pulls out of the sale the last one is your, if not ill contact the group buy supplier to see if they will do another lot of 5 pumps at the reduced price.

why do they need to be made in Germany? Its not like there arent any machines here in australia that can't do the job. You don't even use a bloody conventional CNC to do them properly.

plus all (from what i've seen) aftermarket pump housings are shitty cast housings, f**k me they'd only cost ~600 to make

or is Germany code for Taiwan?

Rezlo Community Regular

Rezlo

Posted
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Posted
Reslo bought, or is buying the last one from the group buy...around $500 cheaper than the Tomei pump. The Nitto gears are designed and manufactured in Germany and are made from superior material than any other OEM style pump. If Reslo pulls out of the sale the last one is yours, if not ill contact the group buy supplier to see if they will do another lot of 5 pumps at the reduced price.

Just awaiting shipping prices :D

reZlo

Fastrotor Proficient

Fastrotor

Posted
Posted

Ok, thanks Paul, let me know.

Just out of curiosity, assuming money wasn't a consideration, would you pick the tomei over any other ?

So the Tomei uses a Saw tooth design ? Anyone got any nice pics to show of one open ?

Also for the guru's..... whats the disadvantage of the saw tooth design ?? I ask as i assume the newer gerotor design is better somehow since nissan swapped to them. (from a factory motor point of view not racing)

Gary

Swiper the Fox Grand Master

Swiper the Fox

Posted
Posted
Ok, thanks Paul, let me know.

Just out of curiosity, assuming money wasn't a consideration, would you pick the tomei over any other ?

So the Tomei uses a Saw tooth design ? Anyone got any nice pics to show of one open ?

Also for the guru's..... whats the disadvantage of the saw tooth design ?? I ask as i assume the newer gerotor design is better somehow since nissan swapped to them. (from a factory motor point of view not racing)

Gary

Saw tooth or not ive seen what a Nitto pump is capable of...im not gambling on other brands when i know i don't need to. Id buy a Nitto over a Tomei.

r33_racer Grand Master

r33_racer

Posted
Posted

Gerotor pumps are more efficient in working, but easily damaged from foreign material running through them, whilst gear pumps (saw tooth types) can easily pass crap and not get damaged (too badly)....they are more forgiving and genereally more reliable.

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