Quote:

Quote:

The only reason to restrict flow is to make the engine run hotter, or to prevent pump pressure from blowing the cap open on a top tank radiator. You can not make the engine run cooler by restricting flow. That is an old wives tale that has been disproven by scientific testing. Higher flow = lower, more consistant temps in the heads, reduces steam pockets and reduces detonation. Proceed acordingly.



Is that really a fact?
I believe that if water flows slow through the rad it will be cooler entering the motor.

Btw i have always used a stat with a mech pump.
I even used a stat on my hemi with elec pump seemed to work but got too little run time to say for sure



Well, think of of this way: Would you slow down the flow of air thru the radiator so that it had more time to absorb heat? Of course not. It is the same thing.