Header wrap question

I think what I'll do at this point is try the car out with some recording temperature sensor I have when I next do Autocross. The suggestions I received are a good starting point. I also found this on the internet which might be of some help:

https://www.zhome.com/Care/z_cooling.htm

I'm tempted to try that oil cooler as I found a used one for $50. I'll have to read up on them more. I only recently learned that my G35 daily driver had one after it started leaking.

I also might consider creating a shroud out of fiberglass based on a method posted by several hotrodders but that will have to wait until next winter when my Z hibernates:

https://www.motortrend.com/how-to/1006sr-fan-shroud-fabrication

Edited June 29, 20231 yr by Jeff Berk