[Vwdiesel] Cavitation of waterpump ??? -good point.

[H .Hagar]

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Have a bunch of pumps here,so I shall drive one with an electric motor, and=
 let you know. Does some else know if these pumps loose efficiency at highe=
r speed ? The pumping is very different from one pump to the next due to th=
e rotorgap being all over the place (Screw rotor),
I am staying with the higher speed for now ,due to age and condition of coo=
lingsystem.At idle she really
gets warm. On the 1.6L VW sped up the rpm of the pump.That is where I got t=
he idea.
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