Jump to content
SAU Community

Recommended Posts

well....why did the pump you see die? I am yet to be convinced there is some basic issue with n1 oil pumps.

they get used in lots (most?) builds?

those motors get treated very hard (otherwise why did the owner spend 5-15K to build it?)

anything goes wrong in the bottom end...first place a bit goes to is the tight clearance oil pump. put any shit through it and it breaks.

once the pump breakes due to the other problem the whole motor dies very soon after.

first thing you find when you pull a motor apart is a broken oil pump.

bottom line is....finding the *real* reason a motor dies is very very complex. oil pumps do not often die on their own but they are very often the first symptom of the real problem

It's usually always the same story......

No aftermarket harmonic balancer and/or rev limiter pump shock. This pump died from both at launch......broken inner gear.

Edited by JD74
as long as you dont smash the limiter you will be fine

heres one with gears broken

http://www.gtr.co.uk/forum/104505-n1-oil-pump-tomei.html

have a look around on the site you'll find more, and race pace had a couple break gears due to limiter bashing

i only got the tomei one cause im paranoid and a dry sump setup for me is over kill

just read that thread in the uk, it had only done 625km and looks like it had other issues that caused the failure.

been limiter bashing(7500) mine for three years now, hope it holds out for another three.

that....or you could give them a call and ask? 02 9648 4264

JD74 - as per duncans post & my original suggestion a lot earlier in the piece...pick up the phone & call the above number.

reason not many people know about this pump is because it is tried & proven, simple as that.

who cares if it was even made in india or vietnam at the end of the day, it is a great pump :)

if it can chew through bits of cast block that should compel you right?

My N1 pump has eaten something (scoring on the gears, probably left over thrust washer ;)) and not broken. Not happy with the wear on the drive face though. Personally I think it's a clearance issue as to why they break, aswell as others. If you look through that linked thread you'll find that the guy that broke the Jun pump was also using a beat up stock balancer.. poor drive clearances and shitty balancer = broken pump? seems like we're going over the same ground again..

JD74 - why dont you do the smart thing?

ring/email CRD and fken ask rather than harp on like a child?

Well, because up untill now NO ONE seemed to even know where they came from......even after I asked a few times.

Harp on like a child ? gimme a break.

I saw user CRD reading this thread and STILL not jumping in. What gives ?

Is CRD really NITTO ? Are NITTO parts really 'Jun Jobber Parts' that are resold under the NITTO brand ? .....sure looks that way to me.

HHmm....people are 'sourcing pumps through CRD'.....

I still can't get a straight answer and what's even more funny, the people that purchased these pumps don't even know for sure.

People are quick to jump to their...ehem...'THEIR' defence, when in reality......noone even knows who THEY are.

Thanks for the info......and thanks for calling me a child.

And the Google comment ? IT'S THE 21ST CENTURY. IF YOU CAN NOT BE FOUND ON GOOGLE, THERE IS SOMETHING WRONG.

I'm done.

Well, because up untill now NO ONE seemed to even know where they came from......even after I asked a few times.

Harp on like a child ? gimme a break.

I saw user CRD reading this thread and STILL not jumping in. What gives ?

Is CRD really NITTO ? Are NITTO parts really 'Jun Jobber Parts' that are resold under the NITTO brand ? .....sure looks that way to me.

HHmm....people are 'sourcing pumps through CRD'.....

I still can't get a straight answer and what's even more funny, the people that purchased these pumps don't even know for sure.

People are quick to jump to their...ehem...'THEIR' defence, when in reality......noone even knows who THEY are.

Thanks for the info......and thanks for calling me a child.

And the Google comment ? IT'S THE 21ST CENTURY. IF YOU CAN NOT BE FOUND ON GOOGLE, THERE IS SOMETHING WRONG.

I'm done.

Hey mate I feel your pain! Sometimes it can be like getting blood out of a stone...

FWIW

According to Godzilla Motorsport Nitto (Nitto Performance Engineering) is Croydon Racing Developments (CRD) own brand

found that with GOOGLE :D

Hey mate I feel your pain! Sometimes it can be like getting blood out of a stone...

FWIW

According to Godzilla Motorsport Nitto (Nitto Performance Engineering) is Croydon Racing Developments (CRD) own brand

found that with GOOGLE :P

Thanks man....... Your Google-Fu is stronger than mine ;)

I'm buying a Reimax anyways.....because it takes more than an upgraded Gear and a Jun Pump Housing to get my money.

  • 2 weeks later...

Ive just spent a few hours reading every bit of this post and it was extremly informative

Problem was I was chasing info and opinions on the Reimax complete oil pump (not just the gears) and as soon as someone mentioned it ....... no more posts, what a crack up, I pissed myself laughing

Anyway what do people think? http://www.reimax.co.jp/pages/products/lower-area/index.html

The company certinly has the credentials

http://ganesh-cf.livejournal.com/16558.html

3791064180_9876a9eb57.jpg

Edited by lcgtr
Ive just spent a few hours reading every bit of this post and it was extremly informative

Problem was I was chasing info and opinions on the Reimax complete oil pump (not just the gears) and as soon as someone mentioned it ....... no more posts, what a crack up, I pissed myself laughing

Anyway what do people think? http://www.reimax.co.jp/pages/products/lower-area/index.html

The company certinly has the credentials

http://ganesh-cf.livejournal.com/16558.html

3791064180_9876a9eb57.jpg

i see your Reimax and raise you a newly released Nitto pump with billet rear cover for added strength.

RB_OIL_PUMP_v2.pdf

i see your Reimax and raise you a newly released Nitto pump with billet rear cover for added strength.

billet rear cover u say paul, so a full billet housing must be pretty good then huh? :)

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 guess one thing that might be wrong is the manifold pressure.  It is a constant -5.9 and never moves even under 100% throttle and load.  I would expect it to atleast go to 0 correct?  It's doing this with the OEM MAP as well as the ECU vacuum sensor. When trying to tune the base map under load the crosshairs only climb vertically with RPM, but always in the -5.9 column.
    • AHHHH gotchaa, I'll do that once I am home again. I tried doing the harness with the multimeter but it seems the car needed a jump, there was no power when it was in the "ON" position. Not sure if I should use car battery jump starter or if its because the stuff that has been disconnect the car just does send power.
    • As far as I can tell I have everything properly set in the Haltech software for engine size, injector data, all sensors seem to be reporting proper numbers.  If I change any injector details it doesnt run right.    Changing the base map is having the biggest change in response, im not sure how people are saying it doesnt really matter.  I'm guessing under normal conditions the ECU is able to self adjust and keep everything smooth.   Right now my best performance is happening by lowering the base map just enough to where the ECU us doing short term cut of about 45% to reach the target Lambda of 14.7.  That way when I start putting load on it still has high enough fuel map to not be so lean.  After 2500 rpm I raised the base map to what would be really rich at no load, but still helps with the lean spots on load.  I figure I don't have much reason to be above 2500rpm with no load.  When watching other videos it seems their target is reached much faster than mine.  Mine takes forever to adjust and reach the target. My next few days will be spent making sure timing is good, it was running fine before doing the ECU and DBW swap, but want to verify.  I'll also probably swap in the new injectors I bought as well as a walbro 255 pump.  
    • It would be different if the sealant hadn't started to peel up with gaps in the glue about ~6cm and bigger in some areas. I would much prefer not having to do the work take them off the car . However, the filler the owner put in the roof rack mount cavities has shrunk and begun to crack on the rail delete panels. I cant trust that to hold off moisture ingress especially where I live. Not only that but I have faded paint on as well as on either side of these panels, so they would need to come off to give the roofline a proper respray. My goal is to get in there and put a healthy amount of epoxy instead of panel filler/bog and potentially skin with carbon fiber. I have 2 spare rolls from an old motorcycle fairing project from a few years back and I think it'd be a nice touch on a black stag.  I've seen some threads where people replace their roof rack delete with a welded in sheet metal part. But has anyone re-worked the roof rails themselves? It seems like there is a lot of volume there to add in some threads and maybe a keyway for a quick(er) release roof rack system. Not afraid to mill something out if I have to. It would be cool to have a cross bar only setup. That way I can keep the sleek roofline that would accept a couple bolts to gain back that extra utility  3D print some snazzy covers to hide the threaded section to be thorough and keep things covered when not using the rack. 
    • Probably not. A workshop grade scantool is my go to for proper Consult interrogation. Any workshop grade tool should do it. Just go to a workshop.
×
×
  • Create New...