oil and water Temp, WOW

Z is 4 ZEBRA!

I was having the same issues on 90+ degree days. What finally resolved it was a combination of multiple things:
- Upgrade oil cooler core to 40 row. It is not necessarily a direct fit as some trimming and creative mounting had to be done.
- Trackspec hood vents
- Trim bumper opening to allow more airflow.
- Mild ducting to force air to go through the radiator and oil cooler
- Water wetter

So far this has been successful for me. I have not yet tried a track day with triple digit ambient temps, but 95 degrees with hour long sessions have not been an issue. Water stays dead center and oil does spike to about 245 but no higher.

danegrey

Thanks for the ideas, will probably work on the bumper first do you have any pics on what you did...

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the Z needs to be driven and driven hard for the car lives for it

Z is 4 ZEBRA!

Here you go. I removed the black upper part of the bumper that normally blocks the factory crash bar and foam.


Here's a pic of the 40 row setrab core. The top right AN fitting would collide with the hood latch mechanism so it needed to be mounted slightly askew to clear.

ResIpsa

I came up with a solution of making huge cuts in the top of my bumper cover (see avatar). That 100% resolved my issues but the aerodynamics (and aesthetics) are absolutely terrible.

Zebra’s aftermarket crash bar is really opening up airflow.

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The Reed Law Firm; Michael Fasano VA Attorney and Counselor at Law: A Virginia Traffic, Criminal, and Family Lawyer.https://reedlawva.com/

Rusty

Hotrodz did the same thing with his front bumper.

A splitter helps too by keeping the up, instead of going under the car. Someone had posted a video on aero. Think it was Hotrodz in one of his threads.

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ResIpsa

It's funny, I am now running a Nismo bumper cover that was gifted to me from TakJack on the condition that I do not cut holes in it. Predictably, I suffered overheating issues at Summit Point last week.

Someone suggested that I remove the condenser from the radiator, so I pulled out the old angle grinder and discovered that...our condenser and radiator are actually a single unit. Oops...

Thus, my need for a new radiator...

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The Reed Law Firm; Michael Fasano VA Attorney and Counselor at Law: A Virginia Traffic, Criminal, and Family Lawyer.https://reedlawva.com/

Tedmeister

Just remember air out flow is almost as important as in flow. I have my 40 row
cooler where the windshield washer fluid was. Direct ducting to it and exiting
into the wheel well. My radiator is tilted forward and there is a ton of room
between the back of the radiator and the block. There is direct ducting to it and hood vents for the air to leave the engine bay. Oil temps barely reach 210
at Sebring in the summer. Water temps never go above the 50% level on the light bar.