Does This Debunk the "Coolant Can Flow Through the Radiator Too Fast" Idea???

RustyRatRod said
It doesn't need to slow down.

Exactly. The ONLY time you slow the pump down when your RPM is so high you actually over speed the pump.

You’d have to do the math to know what that speed is but if you are 10% over and you shift at 8k you’d have pump/fan speed of 8800.

I don’t know if that is over speeding the pump/fan but it could be.

Plus you might have a hard time keeping the belt on at that speed.