Nissan 370Z Forum - First potential problem?

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First potential problem?

Quote:

Well MCR have put a solid 600km on their new Z already figuring out how it goes and what needs improvement and a list is already drawn up.

First up is full coilover replacements from Endless. These Endless Zeal coilovers offer full front and rear height asjustability as well as damper adjustment. Once on, the suspension is tweaked to MCR’s specifications. Enkei GTC01 wheels in 18×9.5+38 front and 18×10+22 rear sizes wrapped in Yokohama NEOVA tires are fitted also to complete the footwork modifications.

During hard driving, MCR has noted that the engine oil temp climbs rapidly. If it reaches 135°C the ECU lowers the rev limit to 5900 rpm temporarily. To combat this MCR worked with long time partner ARC to come up with an engine oil cooler. A rear differential oil cooler kit is also planned. A Z33 Nismo LSD completes the rear diff work.

370zblog.com

That's 275 degrees F on a pretty much stock car.

Discuss.

damn...the Z's have limp mode built in also, like the G's

I believe Mines installed an oil cooler

Edit: ARC now working on parts for the 370!!!

ya oil cooler should fix it same issue as the 335I had

This won't be a problem for me since I have never tracked my car nor do I ever plan too. But yes the g37 has the same problem.

This indeed is a problem. I was talking about it in the other thread. MCR is working on a solution for this. I hope they come out with a reliable solution. Namir posted in his other post that STILLEN is also working on it.

Quote:

Originally Posted by AK370Z (Post 5747)

I think it is. BTW, I should also mention that they kept saying something about when oil temparature reached 130 C it goes into fail-safe mode?

Quote:

Originally Posted by Namir (Post 5760)

Aw bummer, I heard the G37 gets limp mode too.

I think it limits revs to 5-6k or something. I can't remember details but I remember some people complaining about it on MyG37.

It looks like an oil cooler will be a necessary upgrade for any one interested in tracking?

Quote:

Originally Posted by Namir (Post 5762)

O
Apparently Stillen is working on one for the VQ37 thanks to the G37 guys. Should probably work for the 370Z too I assume?

"TORQUE CUT CONTROL (AT HIGH ENGINE OIL TEMPERATURE)
ECM receives engine oil temperature signal from engine oil temperature sensor.
To avoid VVEL performance, ECM performs the engine torque cut control at high engine oil temperature.
If engine oil temperature is too high, engine oil viscosity will change. As a result, engine oil pressure is
decreased. This control is to control the VVEL operating angle by operating the VVEL actuator sub assembly.
If this control is operated, engine performance will decrease, then maximum engine speed is reduced a little,
for example.
NOTE:
If the engine oil temperature sensor is deteriorated, its characteristic will change.
In this case, the operating temperature for engine torque cut control might be decrease.
Perform Component Inspection of the engine oil temperature sensor to check for the deterioration.
Refer to EC-248, "Component Inspection". "

This is from another thread.

This isn't a problem that aftermarket companies should be fixing...

yes stillen is suposed to be close for the G37S. thanks for reminding me I got to call them.

Quote:

Originally Posted by xDIEGOx (Post 7611)

This isn't a problem that aftermarket companies should be fixing...

I have to agree. Sounds like something Nissan should take care of. Kinda early but maybe Ill just wait till the car is out a bit before jumping into it.

This concern sounds very similar to the issues that the BMW 135i and 335i guys are having with heavy abuse; overheated oil temps. A well placed oil cooler should do the trick. It would've been better if Nissan spent a bit more $$$ in the Sport Package and had an oil cooler part of that package, IMO.

Damn this sucks deffinitely nissan should be taking care of this problem. With an oil cooler after market would that then void the factory warranty? I plan on DRIVING mine and babying it as well, but the last thing I need is for the cut to happen in the middle of the strip.

^^^ if you warrenty is an issue get the stillen one as it will not void warrenty. They still got to prove the oil coller caused the failure.

I wonder where the temperature is where they are tracking. Tracking in a mild environment may be the same as commuting in Phoenix. Last thing I want is to be on the I-10 in heavy traffic when it's 120 outside and the car can't handle it. Nor do I think I should have to buy aftermarket parts for the car to do what it's supposed to do.

^ Well it is winter...

Quote:

Originally Posted by xDIEGOx (Post 7909)

^ Well it is winter...

Exactly.

You can really put just about any good oil cooler on any car including the Z. You dont have to spend $1,000 on an ARC one although it would be pretty cool. Any oil cooler will work...

Quote:

Originally Posted by RCZ (Post 7982)

You can really put just about any good oil cooler on any car including the Z. You dont have to spend $1,000 on an ARC one although it would be pretty cool. Any oil cooler will work...

But again, why should we have to?

Oil temp issues were my biggest concern with my 135i, fortunately it's ok with the oil cooler.

Is this car sport pack? I wonder if the sport pack adds an oil cooler.

I would say you shouldnt need to, but you can't expect a $30,000 car to be perfect. It will never overheat on the street, only on the track.

Everyone keeps treating the $30k price point like it's $100k. $30k is a bargain for a car of these performance specs, so we can't expect everything to be perfect.

But when it is the 350z's predecessor and they didn't have this problem well I think that there fit and form for the engine is then being tested. No this is not an expensive car by any means but at the same time it is a car that is making a statement of refinement, value and track prowess and if they can't back it up by combating the over heating problem well yeah I think then there is room to complain there.

You make some good points there. I just have trouble faulting a car that performs so well but needs an oil cooler for hard track driving when there are people driving around in $30k+ civics (from the factory!)

18rgcelica73 has an excellent point. This is a pretty quick fix, wilth a pretty low price tag. Prediction one, everyone initially installs an after market oil cooler. Prediction too, people start rerouting the gauges. I am going to leave mine stock until 15K then I'll mess with the top of my VQ.

I will only be DD'ing this car so I doubt I would have that problem.

It looks like it is a track related problem only. Daily driving should not be effected. Also, they have not reported a failure due to the high temps on the track. Just that they are a little high for there liking.

I don't think of this as a problem, but nissan should add offer it as an option. This is the same issue full size trucks have when you tow or take them off road. With out a cooler, you are at risk to high repair bill. Nissan, does not see this as an issue cause majority of ppl will not push there car as I or most of us(forum). I do see the point from the guy in Az., in those extreme temps. you should have at least have the option.