why are you starting so high ?
my car I try to roll through the water at 90-100
stage at 110-120
return road usually 145
If you look at a lot of heads up racers, they have small rads to save weight. If using a small rad and it doesn't have the capacity, just start lower.
As long as it comes up on the trans brake, your good
you right ... but is from a pass and another pass is 15 minute .. no time for make cold ... i started minimum at 120 .. i can start at 90 ? but some time for wait before burnout go fast from 100 to 140 ...