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Let's Reignite The Debate - Oil Pumps - N1, Tomei, Nitto

Shoota_77

By Shoota_77,
in Engines & Forced Induction

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Shoota_77 Veteran

Shoota_77

Posted
Posted

Ok, as per my clutch post I think I've just killed my oil pump due to stupidity or possibly just a case of was always gunna happen just when.

Anyway, that got me thinking about what pump do I put in.

I've read all the posts about N1's self destructing and at this point i'm a victim of the N1 curse (mine is N1 but a few years old now).

I spoke to Chris at Racpace who did the tune on my car and he said they still predominantly fit N1's. They do a lot of track cars and some pretty high performance stuff at that. He said the only time he wouldn't fit an N1 would be to say a drift car that is bouncing off the limiter on a regular basis.

So I'm in two minds, spend say $450 and get an N1 or go nuts and spend $1400 on a Nitto or $1700 on a Tomei and hope to never have a problem again???

Decisions, decisions.

Your thoughts gentleman? And keep it clean, this topic seems to get people a little emotional......

kitto Mentor

kitto

Posted
Posted

Nitto pump

Nitto crank collar

6 - 10 thou total clearance between collar and inner gear drive flat.

External oil pressure reg

ROSS/ATI/ New OEM harmonic balancer

Fully balanced rotating assembly

Avoid rev limiter

Failing that, external oil pump opens up a whole can of worms.

Piggaz Grand Master

Piggaz

Posted
Posted

Just don't hit the limiter. Is it REALLY that hard?

Set the limter at 8500 RPM and shift at 8000 RPM and get your tuner to pull a shit load of timing out before the hard cut.

It seems that the older N1 pump's are more reliable than the new ones (Just like the above post has suggested)

Buy a Tomei, don't bash limiter. Issue solved.

Shoota_77 Veteran

Shoota_77

Posted
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Posted

That's the bloody annoying thing. Hitting the limiter once like I did shouldn't have shat the thing. I guess it was just gunna happen, fortunately it happened while static. I''ve had the car for 6 months but only put a few thousand kms on it. I got it back from the tuners yesterday so a brief rush of blood to the nether regions and here we are.

Plus side? I used heaps less fuel on the back of the tilt tray than if I'd driven!!

I''m kinda pumped about pulling the engine out anyway. Heaps of other stuff I can do while it's out.

zebra Grand Master

zebra

Posted
Posted

Smashing the Limiters is bad in any engine/pump combo

Shock loading anything drive/engine related is never good for it

Set rev limiter to what ever the bottom end or valve train is good for (which ever is the weaker link) and besides 99% of the time the power has fallen well over by then so there is no real point being up there

I can't comment on oil pumps because I've only ever used oem stuff, ironically never broke one though

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

For the record, i limited bashed a N1 all the time @ 8400rpm. No problems.

Anyway lets not reignite the debate - there has been more than enough information posted over the years for someone to make their own decision - and that's what needs to happen, you need to decide.

Thanks.

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