A new 2010 ZO6 would cure a lot of the compromises Todd!
In general, the oil temperatures for this engine are far lower than the previous GEN1 SBC's the car has had. At the last track day the oil never exceeded 185* with an ambient around 85*F. With the previous 406 SBC it would have been 220+. The current supercharged LS makes more power, turns at higher engine speeds, and has less oil capacity, yet runs significantly cooler.
I see no need for whoop-de-do thermostats for these engines unless the build is pretty wild. These engines already have the good stuff built in.
I need to pony up for HPTuners so that I can change fan temps. I'm just a cheap SOB for some things.
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