DIY ZSpeed NISMO 370Z Aluminum Under Pan Diffuser

Cell

Even with an oil cooler you still hit 260... Is that with mild boost or hard driving?

wind.zero

^^
Yes even with a 25R oil cooler. The NISMO bumper has very little air flow and the oil cooler is stuffed into the driver side pocket of the bumper.



260 is an exception and not the norm. But I still do not like seeing that on the gauge. In the heat of the summer, cruising on the highway, I run 220-240. Get into boost and 260 is easily achieved. Depending on the ambient air temperatures and humidity, sometimes temperatures come back down to a reasonable level, sometimes they don't.

260 happens with hard driving combined with ambient air temperatures as low as 80 degrees though. I am confident that the SPAL fan will cure the problem.

I saw 260 last week and it was 78 degrees after some spirited, high speed driving.

koffeegy

I was under the impression that the 25R oil cooler was designed to be open to the direct air flow being forced in through the opening in the bumper at higher speeds. Just like the radiator has to in the path of the best air flow. Just my opinion... But I think if you relocate the oil cooler to in front of the radiator, you should probably see better results. I just don't see it getting the proper amount of air circulation through the coils hidden off to the side. Just like the radiator needs the air to cool off the coils... so des the oil cooler.

__________________
-Glenn

2012 NISMO Gun Metallic #0015

wind.zero

I can't relocate the oil cooler to the front because of the FMIC.



I have the SPAL fan and relay, but I have not had the time to install it. I have already vented the fender lining. The fan should push air over the oil cooler and out the vent in the fender lining. This should be a problem solved on the high oil temperatures.

Vented Fender Lining