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

ir3333 said

I read that stock Mopar pumps flow about 15% more than stock Chev pumps. So by speeding up the pump you guys have discovered something that the Mopar and Gm engineers completely missed.Me, don't know but i've found using
aftermarket parts is a step backwards more times than not.

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Not exactly. Chrysler was overdriving pumps a long time ago.

A quick read of the FSM will show that.

The aftermarket stuff is junk because SOME engines turn enough RPM that you can over speed the pump and fight keeping the belts on.

But I'd bet everything the engineers know that limit and run slightly under that speed.

At 8500 RPM you may have to turn the pump slower to keep the top pump speed where it would be if the engine only turned 7k.

Circle track guys are the WORST about speeding the pump up. Its in all the books that under driving saves horsepower so it must be true.