oil pump

[muzzer2002]

hi guys just bought myself a jun oil pump

but now im wondering should i have gone for the greddy pump or the tommie



what revs can the jun pump handel btw



sorry if this has been asked before just doing a big shop online for parts

[Listerofsmeg]

jun will do just fine, i wouldnt worry about it.

[muzzer2002]

cheers mate

o well off to do more shoping

[alex2005]

Iv heard that they can rev to 10k but not sure how true this is.
Iv just bought a Jun too. are you fitting a restrictor?

[GT-R Glenn]

Jun Tomei are at the top end of aftermarket pumps /

[Vipes R32 GTR]

i most say ive was checking out pumps and ive sort of done my own research ive bought a tomei oil pump in the end with trust baffle kit and sump extension from what i have found tomei oil pumps they give you 3 discs which u can adjust the oil presure with and because of a completly different design of pump you can put these discs in with out taking the sump off not like the others if u have the money the quality of this pump is remarkable ive found out that jun oil pumps crack easy not sure if cause is the crank balance or damper pulley or the high revving but they still work but leak oil and plus them being a high flow oil pump i would recommend sump extension if i had a second option on pumps it would have been the trust oil pump as i have never heard anything bad about it but nothing really any good about it ever
n1 oil pumps are exactly the same as oem pumps with just a uprated spring in it all in all if u going to be doing low revving not exceeding 6000 then the n1 or oem pumps will be fine if u going to hit 7000 or 7500 ill would get a trust pump if u want to hit 10000 there is 1 pump that can trully proberly handle it for the money and that is tomei pump

[GT-R Glenn]

n1 oil pumps are exactly the same as oem pumps with just a uprated spring in it all in all if u going to be doing low revving not exceeding 6000 then the n1 or oem pumps will be fine if u going to hit 7000 or 7500 ill would get a trust pump if u want to hit 10000 there is 1 pump that can trully proberly handle it for the money and that is tomei pump

BULL SHIT !!!!

Dont post bollocks ...

N1 oil pump vs. stock RB26 oil pump: RB20 / RB25 / RB26 Forum: Nissan Forums / Infiniti Forums - NICOclub

[R.I.P.S NZ]

The JUN and greddy are the same pump, made in the same factory aparently.

I have used JUN/greddy in many engines up to 750hp/8500rpm and I use the Tomei where we have been to over 1200hp/9500rpm.

I personally wouldn't use an N1 pump on anything other than a very basic street engine.

Sounds like what you have will be fine.

Rob

[Vipes R32 GTR]

dont get me wrong but if this is bullshit then prove me wrong ive heard of 2 people having faults with there jun pumps ie cracking and like i said 2nd choice would be a trust pump if i had a modified car. but if i really wanted piece of mind i would go with a tomei oil pump all day long and i never said n1 would be ok for modified cars ever i said 6000 rpm is the max i would really go up too.but im not saying u cant exceed that im just saying it would be quite safe at that sort of rpm .that pump on that tread looks to me like a nismo pump coz i have 2 n1 oil pumps and non of them look like that guys im not hear to argue with u guys but if you can prove to me wrong then im man enough to say sorry but this was my own opinion the and im willing to except defferent opinions if we going to learn something new everyday y shouldnt it be about the rb26

[matty32]

we have heard stories of the JUN pumps failing a few times, and after hearing various people on here with their JUN pumps we will only quote for TOMEI items now

[TP_]

Yes this has been asked a lot of times before.....

As matty says, i´ve also heard of Jun pumps failing. It´s not so often the gears break, the thing that goes is the casing of the pump. It cracks apart and begins to leak oil (still the pump itself works).

When i heard about that, there was no doubt about that it was Tomei i needed.

Here´s some about Jun cracking: Cracked Oil pump

And please, SEARCH there´s BIG and great threads regarding oil pumps!
Try out "Jun Tomei oil pump"

[paul cawson]

Originally Posted by R.I.P.S NZ

The JUN and greddy are the same pump, made in the same factory aparently.

Rob

Greenline charge another 28000 Yen (£131) for the Greedy pump I do not think it has the same gears, SCM 435 its also rated to 10000rpm

[asiasi]

what is the part no of the best tomie pump is it 193035, or do they do a higher spec one,

[Vipes R32 GTR]

i dont think i could ever trust 10000rpm on a greedy pump im not saying it couldnt do it but there would always be that dought in my head that it wouldnt be upto the job

[LAURENCE]

From what I have picked up from looking at different oil pumps, it does seem to be a grey area.

So many variables could affect longevity of an Oil Pump

- Rev Limit
- Long or Short Nose 26 Crankshaft
- Imbalanced Crankshaft
- Incorrect Bottom End Clearancing/Rebuilding

There are GTR's out there doing over 550hp, battered round the 'Ring season after season, rev'd to 7500+rpm, on stock crank.. and STOCK Oil Pumps, with no drama's.

Then you hear about Jun pumps cracking, and Trust pumps making 'too much ' pressure.

Tomei by the looks of things, is superior in terms of design, but not sure what level of performance warrants this.

I've seen big spec Japanese Circuit Cars on N1 Pumps.

I suppose you could just say you simply wanted the most reliable pump on the market full stop, and buy the most expensive - Tomei...it is a very pricey commodity though.

I'm tempted with an N1 Pump and spend the extra on Harmonic Balancer Crank Pulley, although I'm not interested in revving beyond 8k rpm (nothing more to gain over 7k rpm, just to keep in powerband when going up the box). Anyone on this setup?