N1 Oil Pump - Epic Fail

[Duncan]

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

[JD74]

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 September 27, 2009 by JD74

[DRIFTER]

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.

[Marko R1]

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?

[bubba]

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..

[R31Nismoid]

JD74 - why dont you do the smart thing?

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

[JD74]

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.

[TiTAN]

if you want an answer contact CRD directly.

you either want one or you want to fork out the extra for the Tomei

people aren't going to spoon feed you the information if you just keep carrying on like that.

[r33_racer]

lol he does have a fair point about google and 21st century bit!

[dano4127]

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

[DRIFTER]

who cares where they come from if they work, i,ve lost count of the number of n1 pumps i've heard of failing within 1000kms, nitto pumps have been out long enough now for us to hear about them failing.

[JD74]

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

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.

[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

Edited October 11, 2009 by lcgtr

[Swiper the Fox]

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

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

RB_OIL_PUMP_v2.pdf

[shanef]

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?

[ali-turko]

whats the point of a billet housing isnt the gears that break not the housings

[Lived4eva]

whats the point of a billet housing isnt the gears that break not the housings

Yeah but when they pull down your motor in years to come they will know you are hardcore.

[shanef]

whats the point of a billet housing isnt the gears that break not the housings

thats correct, i was just having a sly dig at paul

[lcgtr]

So when do you think these billet ones will be ready to go?

[shanef]

which billet ones are you refering to?