Jump to content
SAU Community

Recommended Posts

i currently run 20-60w in my engine but i question the oil pressure as its almost off the clock...on cold start up it reads 7bar and once warm reads 4bar when on idle, should i consider 10-40w as suggested by my engine builder? bearing clearance is 2thou

then again, oil pressure is my friend as it seems :)

Almost off the clock?

pfft - mine is soo far north of the end point it hits the gauge stoppper (over 8), but then it is a Racepace motor, they all are high. :(

Paul you notice much drop in oil pressure if you open up conrod side clearances? Or you think the drop would be negligible?

its neglible...think about when a bearing is spun, the conrod thrust is not much of a restriction on flow as oil pressure plummets.

i cannot get my head around why this is being viewed in a ngegative light. Anyone who really knows and or builds these engines would see this as a bonus...Ash's post backs this up.

Edited by DiRTgarage

my only question is if the pumps are made in australia why does the distributor claim they are made in germany? and pages before that someone claimed they were made in china or taiwan? I couldn't really give a crap where they are made but it would be good for guys who are selling them to at least all be saying the same thing. :(

hell I might even buy one for one of my engines. :D

though I'm still waiting on shanef's splined gears...... come on shane!!! :)

I've got absolutely no issue with n1 blocks being manufactured in china, in fact I would very much welcome it.

nissan has not been casting n1 blocks for at least 5 years and globally all old stock has pretty much disappeared.

If Nissan is going not going to supply new blocks where will we get them from? Good luck to anyone that has gone to the effort of casting them, I'll take 5.

I haven't had trouble getting new N1 blocks in japan recently? or compelte N1 motors for that matter. direct from nissan. I think this whole no block making for 5 years must be a rumour. either that or they had stacks upon stacks of them sitting around waiting. can still buy one today if needed. either block or long motor. N1, N1 Nur or even standard 05U. pick one. :(

its neglible...think about when a bearing is spun, the conrod thrust is not much of a restriction on flow as oil pressure plummets.

i cannot get my head around why this is being viewed in a ngegative light. Anyone who really knows and or builds these engines would see this as a bonus...Ash's post backs this up.

I was only curious as others have said that oil pressure can drop if you open up side clearances too much as it escapes more quickly...But if you had enough flow, such as that provided from any of these aftermarket pumps (especially nitto) it wouldnt really matter as the pump will more then likely outflow what could be lost through these bigger clearances.

I thought RB's needed higher oil pressure to help prevent big ends from grabbing due to the cranks being cross drilled, rather then straight shoot like most aftermarket race cranks...the usual centrifugal forces trying to stop oil reaching the big end as crank rpm increases, generally more evident in higher revving RB's.

my only question is if the pumps are made in australia why does the distributor claim they are made in germany? and pages before that someone claimed they were made in china or taiwan? I couldn't really give a crap where they are made but it would be good for guys who are selling them to at least all be saying the same thing. :(

hell I might even buy one for one of my engines. :D

though I'm still waiting on shanef's splined gears...... come on shane!!! :)

they are close!!!

Had a search but surprisingly could not find a single thread about rebuilding these oil pumps, given the price of them i would have thought that some one would have done it.

Also is there any way to test and oil pump that is off an engine, picked up and engine with a bottom end rattle and another good bottom end to go with it, problem is that the only oil pump that came with it is on the engine with the bottom end rattle.

i just had a call from jim @ crd...we can finally put this to rest!

jim was heavily involved in the development of what he calls "the ultimate pump" for the rb, some compare it to tomei, jun etc...from this they decided to release a 2010 version which now includes a billet backing plate, the main reason for this is to give it a point of difference from the japanese competitors. he said its like buying a newer version commodore i.e. change the bumpers, headlights etc. simple aesthetic updates to pick up the anti. mechanically, it does not improve the car what so ever which brings me to the next point...he couldn't justify pulling out a 2009 version nitto pump & replacing it with a 2010 as only the headlights have changed so to speak. there is no advantage nor a requirement to run a billet backing plate BUT it sets itself apart from the rest & its another tick in the box, makes sense to me.

100's customers are using the cast backing plate with not 1 failure to date - perfect record!

the pump is competitively priced which also makes it the clear winner!

lastly, the nitto oil pump is MADE IN AUSTRALIA & as jim quotes, "we have some of the best engineers in the world, just look at what else is made here for these cars: gear sets & ecu's"

we even have the best tuner here in australia :D

LOL......

Why was 'The Ultimate Pump' created using a Jun 'jobber' Pump Housing ? I think during Jim's 'heavy involvment' he should have asked Shanef for a copy of his CAD file for his new pump housing with EXTERNAL pressure relief adjustment availability.

Let's face facts here.

1) The 'NEW' Billet back plate serves nothing more than as a 'name' plate and is a plucebo at best because housings DO NOT flex and to make this statement true (flex) the inner gears would have to be constantly bashing up the inside of the pump, breaking things....get it ?

2) It's an old housing with a new gear. The only thing 'different' is their marketing. Other Aus & NZ companies have done it as well, using Nissan housings rather than Jun.....and did it first.

3) Until NITTO have a website (not the tyre guys either).....they are a worldwide NOBODY.

As a side note, I saw a Nitto pump sell on Ebay the other day for $900 AUD.........

My thoughts are.....SHANEF's Housing machined to fit Reimax 85mmx12mm Gears will be THE ULTIMATE.

you are entitled to your opinion - go with your heart & buy suits your project

end of the day does it really matter what pump you use, no.

if your pump breaks though, you wont be happy & nitto have a clean record...the thing has chewed up bits of a cast block - case closed IMO

My thoughts are.....SHANEF's Housing machined to fit Reimax 85mmx12mm Gears will be THE ULTIMATE.

I think the splined gears that Shanef is making up will be the ULTIMATE oil pump setup... none of this two drive flats shit.

i currently run 20-60w in my engine but i question the oil pressure as its almost off the clock...on cold start up it reads 7bar and once warm reads 4bar when on idle, should i consider 10-40w as suggested by my engine builder? bearing clearance is 2thou

then again, oil pressure is my friend as it seems :)

i would drop to a thinner oil, the pressure is not the issue but the extra loading on the crank flats and pump rotors is what im concerned with... especially cold starts with a 20w-60

LOL......

Why was 'The Ultimate Pump' created using a Jun 'jobber' Pump Housing ? I think during Jim's 'heavy involvment' he should have asked Shanef for a copy of his CAD file for his new pump housing with EXTERNAL pressure relief adjustment availability.

Let's face facts here.

1) The 'NEW' Billet back plate serves nothing more than as a 'name' plate and is a plucebo at best because housings DO NOT flex and to make this statement true (flex) the inner gears would have to be constantly bashing up the inside of the pump, breaking things....get it ?

2) It's an old housing with a new gear. The only thing 'different' is their marketing. Other Aus & NZ companies have done it as well, using Nissan housings rather than Jun.....and did it first.

3) Until NITTO have a website (not the tyre guys either).....they are a worldwide NOBODY.

As a side note, I saw a Nitto pump sell on Ebay the other day for $900 AUD.........

My thoughts are.....SHANEF's Housing machined to fit Reimax 85mmx12mm Gears will be THE ULTIMATE.

ROTFL

Edited by dazmo

people talk alot about the nitto clean record of no failures but to be fair N1 pumps have been on sale for nearly 20 years, Jun for about 13 or so and most of the other jap pumps at least 10. reimax (reinik) over 15 years too. so you would expect in that time some would get f**ked and quite possibly due to user or installer error not necessarily due to pump fault. though I'd wager there were/are faulty pump as well. nitto pumps have been on sale about 1 or 2 years and have sold no doubt much, much, much less than any of the others so it would make sense there are less (apparently none) failures. I'm not saying they are not a great pump. but saying we've had no failures sounds impressive, but if you've only sold 100 of them then it looks less so. if you've sold 10s of thousands like the nissan N1 pumps then it will be remarkable!! :P

I'm still holding out for the splined gears. the nitto pump is a very viable option and seems good value too. other than that I'm still a fan of the reimax gears in your old N1 housing or stock housing.

  • 3 weeks later...
I think the splined gears that Shanef is making up will be the ULTIMATE oil pump setup... none of this two drive flats shit.

I hope so!

people talk alot about the nitto clean record of no failures but to be fair N1 pumps have been on sale for nearly 20 years, Jun for about 13 or so and most of the other jap pumps at least 10. reimax (reinik) over 15 years too. so you would expect in that time some would get f**ked and quite possibly due to user or installer error not necessarily due to pump fault. though I'd wager there were/are faulty pump as well. nitto pumps have been on sale about 1 or 2 years and have sold no doubt much, much, much less than any of the others so it would make sense there are less (apparently none) failures. I'm not saying they are not a great pump. but saying we've had no failures sounds impressive, but if you've only sold 100 of them then it looks less so. if you've sold 10s of thousands like the nissan N1 pumps then it will be remarkable!! :)

I'm still holding out for the splined gears. the nitto pump is a very viable option and seems good value too. other than that I'm still a fan of the reimax gears in your old N1 housing or stock housing.

I'll provide plenty of feedback and testing back to back with an origional N1 pump, when I get my "shanef" gear set installed. I have the perfect rb25 in a 32 test bed... and a 26 crank-rods-piston set waiting to go in when/if it blows.

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

    • Howdy all Im in a little predicament and wondering what everyone’s thoughts are? I’ve had my long block rebuilt and am in the market for a turbo due to my old one having metal shavings from crank bearings (cause of rebuild) go throughout the turbos oil lines and there wheel has a little play. I’m not really aiming for any power, just trying to keep it as oem as possible, but I can’t find a turbo that’s built for the stock ecu or find something that would be a standard replacement. Anyone have any ideas or suggestions 
    • How's everyone going? Just a shout-out introducing myself. I'm James, I live on the north side of Brisbane. I bought an R33 that had been left to rot in someone's front yard for 14 years. Apparently, it has immobiliser/fuel issues. Long story short, it's suffering from a seized engine, plus whatever else turns up once it runs. The car is pretty good considering it sat for so long. It pretty much died after being imported. It has a bunch of Jap parts and a full Top Secret body kit. It's painted Fiat Turchese Festival, or aqua blue if you're not French. Another project to throw money at!
    • So the clockspring is responsible for the indicators cancelling on their own? I thought that was the function of that white thing in the center (any idea what it's called?)
    • Can you log IAT? Whilst WTA coolers have their place, doing any sort of sustained run is not one of them There are fixes that slow down the heat soak, like ice boxes, which don't last that long, and interchillers, which are fairly expensive, up grades to the WTA cooling radiator, which may require a bigger pump, and upgrades to the reservoir size,  and upgrades to the cooling fans, but, it all still heat soaks, and takes ages to come down in hot weather  For a turbo, that isn't locked into WTA like my PD blower is, can you not possibly swap to a nice air to air intercooler????, it would be better for sustained runs then, and have alot less things that could go wrong in my opinion 
    • So, the other thing I've sorted is a baseline dyno run up at Unigroup's new location. The auto trans was a little unco-operative by both shifting down when the throttle was floored on the dyno (so Mark had to ramp it up more slowly than in a manual) and also by shifting up at 6,000 even in sports mode instead of the indicated redline of 7,000 Still, on a hot day it made 240rwkw at 16psi which seems about right for 300kw (400hp) through an auto at the wheels.  The shape of the curve is not quite right because it was not full throttle to about 4,500 to stop it kicking down, but until I can get a tune on the auto trans control this was the best we could do.....full boost will be well below 5,000 once that is sorted, I'll get some data logs when I can to confirm For comparison, the R32 made 255 at 12psi (at 4,500) on the same dyno with tune, n1 turbos, cam gears, big exhaust but otherwise all standard so the v37 is likely a little better out of the box. One thing that is very clear is that the standard water to air intercoolers are not up to sustained use at full throttle in warm ambient temps. After about 5 runs (so only a few minutes full throttle), it was pulling boost and timing and dropping 10-15% power. Unfortunately I didn't get that printout and the Unigroup guys are away at the moment, will try and get hold of it on their return. So, looks like a healthy engine to start modifying and the only real area of concern is the w2a heat exchangers which the aftermarket has plenty of solutions for    
×
×
  • Create New...