One oil cooler is not enough

SunsetZ

They are doing it for a reason. The radiator goes all the way to the top of the bumper. Lower rad temp means lower oil temps and vice versa, it's all interrelated.

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

Mt Tam I am

OP it sounds like you have done all the right things. I wish you luck.

I too have a 34 row oil coller in a 2009 Z, and at 99 degrees at Sears Point I hit 260*, while using a higher gear did bring temp down some. I did not hit limiter. Also no humidity to speak of.

This is an extreme heat situation, hopefully with these small fixes you will not be plauged again.

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Nissan Motorsports 34R Oil Cooler. Stillen CBE. Hotchkis Sport Sway Bars. KW Variant 3 Coilover System. Stillen Gen3 CAI. Michelin Pilot Super Sport. Stillen Brake Ducts. Carbotech™ XP10/XP8 Pads. Z1 Front Rotors. Z1 Stainless Brake Lines. Two degrees of camber

JWillis72

Because of how much the vented hood helped with cooling I would bet the engine bay on our cars are a high pressure zone and if thats the case I can't imagine the holes would help flow much without somewhere for the increased air flow to get out of the engine bay. With that said, if you try it please let us know how it works for you.