Jump to content
SAU Community

Reimax Or Jpc Oil Pump Gears?

bubba

By bubba,
in Engines & Forced Induction

 Share

Recommended Posts

bubba Grand Master

bubba

Posted
Posted

So I'm in the market for some new oil pump gears, I was going to get some JPC items but after discussions on the phone this morning, they are out of stock for another week or so.

I also queried the different sizes of gears and the guy said he wasn't aware of different sizes..

So I jumped on RHDJapan as I recalled seeing them specifiy two different OD's of gears and they only want AU$430 delivered for the Reimax gears while the JPC gears are AU$370+postage...

Which ones should I go for?

Link to comment
https://www.sau.com.au/forums/topic/376478-reimax-or-jpc-oil-pump-gears/
Share on other sites
djr81 Grand Master

djr81

Posted
Posted (edited)

A week & 60 bucks is neither here nor there.

Which pump do you have - the Reimax ones are for the stock & N1 pumps - different sizes for different pumps.

By the sounds of it the local offering is for a stock pump?

Edited by djr81
bubba Grand Master

bubba

Posted
  • Author
Posted

Currently an RB30E pump but I have an N1 pump as well which is what I was going to put the gears in (neither JPC or Reimax do RB30 gears). The info on RHDJapan says there are two sizes of Reimax gears, both for the N1 pump but there is an early (bigger OD) and a later (smaller OD) version.

Yeah a week and $60 is neither here nor there, so that's why I'm torn with which way to go and I guess I am looking for peoples experiences with either.

djr81 Grand Master

djr81

Posted
Posted

Currently an RB30E pump but I have an N1 pump as well which is what I was going to put the gears in (neither JPC or Reimax do RB30 gears). The info on RHDJapan says there are two sizes of Reimax gears, both for the N1 pump but there is an early (bigger OD) and a later (smaller OD) version.

Yeah a week and $60 is neither here nor there, so that's why I'm torn with which way to go and I guess I am looking for peoples experiences with either.

Um, is there?

As far as I know (& I could be wrong) there are two different crank drives for the pump - the early R32 (Pre August 91 perhaps) being the least strong.

The OD of the N1 & stock pumps is different the stock somewhat perversely being larger than the N1.

I wasnt aware that the outside diameter of say a stock pump changed over the life of the RB26 but I could be wrong.

bubba Grand Master

bubba

Posted
  • Author
Posted

No, the OD of the N1 pumps, they state an early (81mm) and a later (77mm), the later being the same size as normal RB26 pumps.

http://www.rhdjapan.com/reimax-oil-pump-gear-kit-skyline-gt-r-rb26dett-54021

djr81 Grand Master

djr81

Posted
Posted (edited)

Try here & go to the reimax oil bits.

http://www.greenline.jp

They list different thicknesses & diameters. I am not at all sure the RHD Japan site is entirely correct in what they are saying.

Maybe this is the same as the all pumps are now N1 rumour?

Edited by djr81
bubba Grand Master

bubba

Posted
  • Author
Posted

The thicker ones are the Reimax Capacity Up gears that you have to send them your housing to have them fitted in to, RHDJapland list them separately: http://www.rhdjapan.com/reimax-reinforced-and-capacity-up-oil-pump-gear-kit-skyline-gt-r-rb26dett-59391

I guess this is why I'm leaning towards the Reimax gears over the JPC as the JPC guy said he wasn't aware of any size differences with the N1 pumps and that's why they moved to the N1 over the RB30E/T.

Legionnaire Collaborator

Legionnaire

Posted
Posted

No, the OD of the N1 pumps, they state an early (81mm) and a later (77mm), the later being the same size as normal RB26 pumps.

http://www.rhdjapan....-rb26dett-54021

Isn't it the other way around? N1 pump 77mm gears with assymetric tooth profile, factory RB26 81mm gears with symmetric profile, almost duocentric?

post-36390-0-47688800-1315380209_thumb.jpg

Legionnaire Collaborator

Legionnaire

Posted
Posted

No first hand experience with either of them, but why would oyu want smaller gears with thin metal? Isn't it better to just put 81mm reimax gears into a RB26 pump? It has a good 2mm extra metal for each gear, so IMO is less prone to breaking.

DR 32R Rising Star

DR 32R

Posted
Posted

No first hand experience with either of them, but why would oyu want smaller gears with thin metal? Isn't it better to just put 81mm reimax gears into a RB26 pump? It has a good 2mm extra metal for each gear, so IMO is less prone to breaking.

Are their really that many reports of billet gears breaking? Certainly much fewer than sintered gear N1 pumps.

  • 6 months later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Kinkstaah
      Strange issue RB25DET wont start

      By Kinkstaah · Posted

      I've seen similar actually in my situation. You never know what tables are attempted to be used when the car thinks it's -99C or +200C. The fail state is not usually that extreme but you know what I mean - it was in my case though! This is where being able to read all the sensors is useful cause you see this stuff really quickly.
    • Kinkstaah
      First time Skyline owner

      By Kinkstaah · Posted

      The above is very important. However as long as you keep timing relatively low, it's plausible to make your own knock ears and plausible to learn to tune with a modern ECU that can do wideband O2 correction like a boost controller. I mean if you only have one viable road to even drive the car on, learning to tinker to this level may be worth doing given you can't do much else with the car...?
    • Kinkstaah
      Chris' Toyota Mark ii JZX110

      By Kinkstaah · Posted

      I find the fact that the rear plate has to be bent inwards at the rear not so bad: but the front is just awful: It's like come on. (these are my very old, now retired/turned in plates) TBH it is a lot of money to fix a minor issue, the fact I said "I'll never really spend the money on doing this" is why people ended up buying them as a gift for a 'car guy' who can be hard to shop for.. for car guy things.
    • GTSBoy
      Chris' Toyota Mark ii JZX110

      By GTSBoy · Posted

      I just bent the ends of my premo plates. It even went through Regency like that after the engine conversion and the inspector (a great bloke!) just squinted his eyes and said "I didn't see that". Plates, and how they look, are just something that have zero importance to me.
    • GTSBoy
      Strange issue RB25DET wont start

      By GTSBoy · Posted

      Yeah, I would have said the same. It makes me suggest that there are other things wrong, such that the ECU is totally unhappy with the broken sensor. The only other thought here is that maybe it is shorted, which might cause a different issue to the typical "disconnected" sensor.
×
×
  • Create New...