Hi rpm oil starvation

BGTV8

Me too !!!!!!

phunk

LOL I dont really need the pan in my hand, I can just as easily get the bolt pattern and flange off my Z. Its only a nights work of CAD. But I am curious about the hinge system for the baffles. IMHO its very important that it be a reliable system that remains active. If it ever seized up, its going to be bad news by drying out that pickup in short order. Rather than wing it as a first-timer in active oil pan baffling, I would like to at least examine how others have done it first.

Simple 2D billet parts like that are by far the easiest products to get from concept to reality. I dont have enough of those. Do we know for sure nobody else is going to sell that pan? I dont want to step on anyone's toes.

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FL 4Motion

You make it, ill buy it, baffled oil pan that actually works aka am perf or "phunks oil pan forthcoming" (fingers crossed) along with nismo oil pump are on my short list.

jrb55gh

Any more thoughts on when you might have a production oil pan available?

phunk

^ It is comically wide... but might be a decently functional part.

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jrb55gh

The GTM pan looks strange but there might be a useful function served by the width of the pan beyond that of the gasket surface. The oil held in the “wings” of the oil pan is mostly stagnant in normal street operation. However, I would think that in a high G turn at hi rpm that extra quart of oil in the wing on the inside of the turn would tend to flow through the active baffles into the pickup area to keep the oil level around the pickup high enough to avoid sucking air.

phunk

I think the largest impact it will have is making it very difficult to change your oil filter.

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JWillis72

Am I missing something? Has this been a problem for anyone or is this just you more oil in the car to help keep it cool? We trashed a Trans Am engine because of oiling problem and I remember looking it up about the Z right after that and the only problems I found were when the rev limiter was moved up.

2011 Nismo#91

Yep. solutions to a problem that only exists hypotheticly. And the oil pump gernading at high rpms won't be solved by baffles, the nismo race oil pump will solve it for much less then a dry sump setup.

phunk

I wish there was some solid information on the NISMO pump. Last I heard, the nismo DE/revup pumps grenade just the same with increased RPM. Havent heard any first hand information on the HR/VHR versions but I assume its the same case.

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BGTV8

This is why the Grand Am race teams went dry sump - the NISMO oil pumps gears are just a better steel - they just tolerate the harmonics for longer, but are still subject to failure under sustained rpm >8500. The only place for definitive information will be Doran Racing or NISMO Japan and the key is getting the information - they are usually reluctant to provide information to other than race teams.

This is not a "road-user" issue, but a "race" issue. Since my engine is ultimately destined for a race series where 1-hour and 3-hour races are the norm, I am vitally interested in oil pump reliability and I am happy to contemplate dry-sump from the get-go as a consequence.

Ross Performance in Albury, NSW (see here :| Ross Performance Engine Parts - Metal Jacket - ROSS Tuffbond Harmonic Balancers - Crankshaft Damper - ROSS Performance Parts |: and follow links for dry-sump/oil pump drives) are working on an external oil pump (Gilmer belt drive) for the VQ/HR as well as an "affordable" dry-sump kit (by comparison to the Dailey Engineering "gold-standard" - it won't be "cheap").

phunk

I would be happy with 8200 or so regular use.

I have played a lot with the idea of getting a GT-R oil pump in here, even bought the pump... But it would require quite a bit of custom work and I am not sure I have the time for it. If the NISMO pump is good for 8200 I am all over it and that is good enough for a powerhouse straight-line engine. Otherwise I dont think I would take a stock pump past 7800.

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FL 4Motion

My whole reasoning for wanting to get the nismo oil pump is b/c i want to build a moderate n/a car with all available mods along with a raised redline of 7800 -7900 rpm and have it be reliable as if stock. Were i wanting 8k rpm +, i would be looking into dry sump but honestly, for a noncompetitive track car, its just not worth it so nismo oil pump, baffled pan (eventually) or worst case spacer and just under 8k rpm limit and try to max out power with those constraints.

Btw, last nismo was tracked reg for 3 years with a 7900rpm redline, stock oil pump no issues.

phunk

I am going to order some billet material for other production today or tomorrow. I just ran out under my Z and measured 14x8x2.5 would be large enough to just barely stay above the crossmember. I will get some bricks on the way for it. Maybe try and push through a quick batch of 7-8 and see how it goes.

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jwick

If you are measuring the cross member clearance, would I be wrong in assuming that it will increase oil capacity or does the active baffle system eliminate the increased depth?

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'10 G37T 6MT Graphite/Graphite - BP - G37T Build