How do you cool you motor in between passes?

Electric water pump, electric fan and a Temp Controller, that turn the water pump on at 140 and the electric fan on at 170.

Pull in the pits turn eng off, start generator, battery charger and walk a way. fan and pump will shut of when there ready. usually only takes 5 minutes on the fan and another 15 on the water pump. NO T-Stat so when the motor heat soaks the electric fan will turn on for another minute.

Has worked really well for me so far.
Agreed, that method works great, but costly for my engine configuration. (Gen III Hemi)