Jump to content
SAU Community

Recommended Posts

Given that current exchange rates have pushed the price of tomei oil pumps un near the 2k mark - I was wondering if there is any other options to upgrading the oil pump on my RB26. I have heard some talk of a CNC'd Pump Gear assembley that is larger and manufactured from better material than the stock and N1 oil pumps(??). The other thing is I assume there is more than just the gear assembley to upgrage... e.g can a stock or N1 housing be machined to accept the larger gear and so on....

RB26OILPUMP1.jpg

Thoughts?

Edited by Antimatter
Link to comment
https://www.sau.com.au/forums/topic/240582-rb26-oil-pump-gears/
Share on other sites

Given that current exchange rates have pushed the price of tomei oil pumps un near the 2k mark - I was wondering if there is any other options to upgrading the oil pump on my RB26. I have heard some talk of a CNC'd Pump Gear assembley that is larger and manufactured from better material than the stock and N1 oil pumps(??). The other thing is I assume there is more than just the gear assembley to upgrage... e.g can a stock or N1 housing be machined to accept the larger gear and so on....

RB26OILPUMP1.jpg

Thoughts?

I think it is a great idea if it is possible for the pump housing to suit the strengthened (possibly larger) gears. Buy a new N1 pump (or possibly standard) and replace the gears with some CNC machined ones out of some very tough alloy would be a viable option. Also, because the pump does not have an increased flow rate (like the Jun and Tomei ones) you may not have to worry so much about increasing the capacity of your sump (less $$$).

Not sure how everything fits into the pump but you would want to have an idea on the tolerances for the gears other wise you will end up that famous creek without a paddle.

Oil pump gears to suit RB pumps are not too far away....being manufactured as i type this

You are a good one for keeping secrets Paul, and releasing bits of information, haha.

- What material?

- Where did you get the design from?

- How do you know what tolerance to machine to?

I am sure there are more... that should keep everyone going.

Uh huh........

Actually they quoted me $550, just had a look at the email I had a while back.

From an email I recieved from power tune:

Yes, they are modelled on the N1 gear set so are exactly the same size.

The difference between our gear set is the material they are made from which is a pre-hardened alloy composite and as such does not require heat treatment.

As a performance part, we regret that we cannot offer warranty. We developed these gear sets out of necessity as many of our customers had broken so many of the N1 gear sets.

We made our first set in 2006. It was put into a 400kw GTR and is going strong.

if theres genuine demand i could push production of mine?

billetoz08cr1.th.jpgbilletoz07mr9.th.jpg

A complete new Pump incuding housing ?

Or just a new set of 77mm N1 Pump Gears ?

The best thing about this idea is the option of Gear upgrades for those that bought N1 pumps and don't want to get rid of them, but are scared to use them without the upgraded gears.

I am not sure if a redesigned pump would sit with enough confidence with most people.

Allan

Edited by JD74

if you want to upgrade your pump gears but the reimax ones. they are the best. they make the gears for group A race cars etc. formerly reinik.

http://www.reimax.co.jp/pages/products/lower-area.html

up till a few weeks ago they were about $550 too, bit more now with the bad exchange rate though. but they are good stuff. I know a few people who have used them in pumps both here and in japan with good results.

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


  • Similar Content

  • Latest Posts

    • I am getting the same issue. Did you resolve it? I just got it after installing my new super coppermix and literally the same issue, new fork, new 18mm carrier, release bearing that came with the kit and replicated the exact same sound. 
    • If you like - I have the STL files so I can email em. There's a couple of gotchas (i.e the holes are not threaded so you might need/will need) to utilize some M3 melt-in threads for some of the points. However if you want to be super accurate, and are willing to remove your calipers and your SHOCKS it's a really good tool. You also might need to scale the part that measures the tyre width a bit wider. It defaults to a 7.5in tyre and I mean who is running that. Luckily with the magic of CAD this is very easy to rescale.
    • jeebus. glad you weren't under it while performing the stunt. Also thanks for the link to the wheel measurer, exactly what I needed
    • In the older stuff there were very significant differences 2wd to 4wd, for example Stagea had strut front end for 2wd and double wishbone for 4wd so it was not minor to swap. From poking around the 2wd v37, it *looks* like it might be more possible; some of the parts specifically have "2wd" stamped on them which suggests the platforms are more similar. You'd still want to start with a 4wd half cut to swap stuff from though. I'd suggest if you don't have a tune on the ECU you don't really need one on the trans either. Throttle mapping is in the ECU side (and you can always use a Roar Pedal if you want the throttle to actually respond to your foot), and really if you are happy with the stock power you probably accept the stock trans behaviour too....its all made to be "sporty" not racey.
    • So, updates. I have not washed the car since it came back from Tassie. I've driven it around a bit but not got around to actually sorting it out. I DID raise it because I cracked the rear bar leaving a hotel which was very distressing. Interestingly, the car drives more compliant now that it's raised a fair bit (5mm front, 15mm rear). Also noticed that my FR height was 10mm lower than FL. So that's now sorted out, too. I also bought this and had it printed: https://www.etsy.com/au/listing/1576422240/wheel-and-tire-fitment-tool-universal?ref=shop_home_feat_1&dd=1&logging_key=08f604d9fa4cc383550ba985e6ac85cd5cac7fbb%3A1576422240 Now, if I was smart I would have taken my brake calipers off to actually use this correctly but it was evident enough to me that in the region where the caliper was... there was nothing to hit suspension/guard/arm wise. So I'm going with "it'll be fine" after using the tool to hopefully very precisely measure the wheel clearance. Also while doing this, I had the very VERY bad idea of jacking one of the wheels/suspension arms up while the rest of the car was on jack stands. I did this to see how the arm would travel. This all was well and good until the car slid off the stands and went through a fence. So don't do that. Incredibly nobody was hurt and there was only minor damage to the rear bumper as the car didn't have far to slide, and had 3-4 wheels on it. The only damage turned out to be the fence itself which was easy to fix, and a little bit of damage to the fibreglass rear bumper trim. I had already planned to try a touch up paint kit to fix the time I drove into my garage door to see if it'd help in the interim before I get it fixed properly. I used the Dr Colorchip kit after looking online and seeing everyone talking about it. Yes it's made for chips and not huge broken missing pieces and I'll be 500% recommending it for stone chips after using it for stupid things like me. This took about ... 10 minutes and looking at the half assed photo the 30 second job I did on the bumper corner was almost perfect just by using the tiny little brush and painting it in. The sealact stuff to remove over-painting is really useful, so if/when I do it again I'll likely slather the touch up paint well over it and then clean it up with the cleaning solution. The wheels should arrive in a couple of weeks. I am still kinda confident after doing a stupid amount of measuring (and borrowing a set of 18x10.5+15) that they will not fit because I overlooked something, somehow and flew too close to the sun. ALSO R34 GTR guard liners do not fit on a GTT. I bought the undertray brake duct guides and had the wonderful problem of them not fitting my intake, my oil cooler and the liners themselves were even worse. Attempting to fit them won't work in general - You would have to cut them up as another poster mentioned as the bodywork is different on the GTT. At least I can try to resell them. So instead of cutting those up, I cut up my old already-cut-up GTT liners and extended them by using some PP plastic and drilling some 8mm holes for some nissan clips for the 'extra' bit. Because I was happy to cut them I was able to mount them pretty damn forward so I now have some semblance of guard liners, and the brake vents seal the bumper from the bottom. It sort-of-looks like this, to give some idea - If you look at the GTR and then the GTT this is when I realised that I needed to seriously measure as the inside of the rim area is entirely, entirely, entirely different and could not take any internet measurements for granted.   
×
×
  • Create New...