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Re: Liquid cooling

Al Gietzen wrote:

> Larry wrote:
> ". and a normally aspirated engine is capable of less than 50% power, the
> flow through the radiator is very small. The low flow will unload the water
> pump and the power used is insignificant.  The low flow will also allow the
> coolant to freeze in the radiator"
> I'd say that 50% power does not mean you would not have significant RPM or
> low flow from the water pump.  Automotive water pumps are designed for
> adequate cooling flow at low RPM and have significant excess capacity at
> higher RPM.

When mechanical waterpumps operate at high rpm and velocity doesn't the cooling
actually decrease?  They also steal lots of power at high rev's.  Don't all the
really hopped up engines use electric water pumps to get a handle on these

Alan Shaw