One oil cooler is not enough

ValidusVentus

I second what Martin said about the shrouding, also a shroud to effectively reduce the gap between the oil cooler and the heat exchanger behind it should help airflow. Also quality oil. Redline 5w30 is a very good oil as well as other actual full synthetics, motul, royal purple, mobile one etc. Do not run a heavier oil, that will just reduce your oil flow (and hence the cooling ability of the oil cooler) unless your engine specifically requires it for other reasons. Venting the engine bay through your hood or fenders should also help though it may be beyond the scope of your project.




PS ... dunno about the fan idea, I'm 99.9999999 % sure that during hard driving it would just reduce flow by adding an obstruction in the flow path... unless of course your fan is capale of moving air at 120+ mph, in that case your prolly good!

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Mods: Dedicated caged track car, lots of things. ||| Valkyrie Autosport |||

SunsetZ

I noticed on GT Academy that Nissan added four openings on the top of the front bumper, that doesn't look good but seeing that the manufacturer went that route says something about it being a good solution.

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2014 370Z 6MT Sport Midnight Blue
2013 GT-R Aurora Flare Blue Pearl

Jordo!

This.

Any gaps will cause the air to duck around the heat exchanger rather than flow straight.

Staying in the lower gear is surely heating things up too, as you noted.

Chuck's suggestion for a dedicated puller fan idea should certainly help.

Also, you can tune radiator fan duty cycles with uprev to come on full blast earlier -- that will definitely help out.

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Enjoy it. Destroy it.