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Old 03-27-2019, 02:21 PM   #30
gcrusco
 
Drives: 2018 ZL1 1LE, 2014 ZL1
Join Date: Jul 2017
Location: Austin Texas
Posts: 114
Quote:
Originally Posted by RUQWIKR View Post
Not an issue with the stock exhaust manifolds...I'm sure the added heat with how close the headers are were the root cause of the tie wrap failures or they got broken during installation.

I always coat my headers and also wrap near. On my cars with coated headers, within a short time, you could touch the headers after running...yes, still hot, but, WAY lower temp and radiant heat off them. Might have saved my Firebird years ago from burning up when I kicked rods out at almost 150mph and oil got on them even with an engine diaper.

Surprised so few guys get headers high temp coated...not saying you can lay plastic loomed wiring against coated headers, just saying it greatly lowers the outside temp of the piping.
I have my headers coated, not wrapped though think the issue was the harness was laying on the headers under a full track day running hot.
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