Nissan 370Z Forum - One oil cooler is not enough

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Obligatory shot of my giant oil cooler.

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Quote:

Originally Posted by ValidusVentus (Post 2813288)

shrouding, also a shroud to effectively reduce the gap between the oil cooler and the heat exchanger behind it should help airflow.

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.