Ken Welter wrote:

   From day one I have been running a smaller racing beat crank pulley
 as I was told that you need to slow the water pump down to stop
 cavitation but I am using  Evans coolant and they say you can speed
 up the water pump with there coolant without cavitation so I wanted
 to know what most of you that are flying are running for a pulley.
 --
 Ken Welter

I might add Ken is using a 2.93:1 (or there abouts) gear box so he runs
his engine faster than most everybody else. Up to 8000 RPM.
Paul Lamar

  I rarely run 8000 but turn it 7000 on take off and cruise at 6500 rpm.

  Ken Welter

 
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