Originally Posted By: rennocneb
my coolant temp ran 190 today, not crazy hot by any means. I have been considering going to a 160 degree tstat though, and adjusting the fans a bit to keep coolant temps around 170-180. that should help some im sure.
If you do this, make sure that you adjust the tune for this as well.
I take for granted that there are not even metal matrix catcons at the end of the long tubes, correct?
As far as oil goes, I would just try Red Line 0W-40, or 10W-40 both have a very high HTHS viscosity, and basically do NOT shear with heat and very hard use.
Then a good, thermostatically controlled oil cooler, maybe even with it's own dedicated fan attached.
Do you use this Commodore daily, right through the entire winter??
BTW; my completely stock internal LS1 sits at almost 50psi cold idle, 40-45psi hot idle, and NEVER drops below 35psi, even after hard running, in the heat, at a open track day.