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Old 01-20-2021, 06:43 PM   #17
lt4camaro


 
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Drives: 2021 LT1 10 speed auto
Join Date: May 2013
Location: Connecticut
Posts: 2,355
Quote:
Originally Posted by cmitchell17 View Post
I will say since I've fixed my thermostat, I now notice a lot more knock retard being pulled at WOT. I run E85 (more like E74) 100% of the time so I was surprised.

If you let the coolant get too hot, it will knock enough for you to audibly hear it. My stock oil cooler hose busted and my coolant and oil temps got above 240 and I was trying to limp it home and even then it was knocking like crazy, I should've had it towed.
And timing being pulled is a power loss. Run a 180 stat for the best of both worlds and you should have less or no spark retard and maintaining power levels versus losing power. Hot engines require more octane.
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