I've used Hy-Per Lube Super Coolant additive in everything for many years with decent results, but hopefully @Rocksandblues @FLtrackdays or @razorlab has experimented and can provide more insight.Is it recommended running straight water w/ water wetter or a higher water to coolant mixture for track days on the Supra? Given pure water vs a mixture gives higher cooling capacity seems reasonable but what are your thoughts?
The Antifreeze question aside the less coolant you use below 50/50 mix the more corrosion you risk. Straight water with or without water wetter is the most thermally effective solution and ok for race engines where corrosion isn't really a major concern but on a road car it's another thing.Is it recommended running straight water w/ water wetter or a higher water to coolant mixture for track days on the Supra? Given pure water vs a mixture gives higher cooling capacity seems reasonable but what are your thoughts?
50/50. When low, I add more premix. I’m lazy and it’s easy.Is it recommended running straight water w/ water wetter or a higher water to coolant mixture for track days on the Supra? Given pure water vs a mixture gives higher cooling capacity seems reasonable but what are your thoughts?
I never would have considered this. Great incite, thank you.The Antifreeze question aside the less coolant you use below 50/50 mix the more corrosion you risk. Straight water with or without water wetter is the most thermally effective solution and ok for race engines where corrosion isn't really a major concern but on a road car it's another thing.
The other thing to remember is that the antifreeze also raises the boiling point of the coolant by a decent margin over and above the system pressurisation increase. This might not seem like a big deal but coolant system architecture isn't a perfect thing especially in the cylinder head galleries and there can be areas of stagnation and low flow where the extra headroom of the higher boiling point can mitigate some of these issues.
Phil