Re: Whats the optimal engine coolant temperature to make most HP?
I stand by my original response.
What Dave427 is asking is whats engine temp is best for making the most horsepower.
I don't see anywhere in his question anything about engine longevity.
I agree, the hotter coolant temps will reduce cylinder wear.
my engine in sig is in it's 6th year,
400 + passes,
160 stat it's whole life.
why 160, because this is where it ET the best.,,,leaving the starting line at 160-165F, crossing at 170-175F.
and believe me it's not worn out.
93 Camaro backhalf car, 3100lbs SBC406 (tow truck motor) AED 850DP,super victor, AFR210 elim, Flat tops, UD Harold SR 243/249/112LSA, 1-3/4 custom headers, T-400, 4500 stall 4.30, best ET/MPH 10.30 at 129 mph (corrected), 10.57 at 126 at 3100 foot air. 1.39 - 60 ft. 91 octane pump gas.
47 years old, into my 5th decade of drag racing.
Last edited by boldm; Sep 11th, 08 at 7:25 PM.