> >  OK Bill I will see what I can do. What is the current max

diameter

 > >  and what max diameter can you handle?
 > >  I see an 8 inch 4L(A) section belt Zinc die cast 5/8th bore.
 > >  We can get a pressed steel up to 18 inch.
 > >
 > >  Paul Lamar

 > I would be reluctant to go over 8", anything greater than that

would be

 > scary. The biggest that I have run is 6".
 >
 > Bill Schertz
 > KIS Cruiser #4045

 OK I will drop ship an 8" to you. What pump RPM will that give us?

-----------------
3450*8/3.7 = 7459rpm

Bill Schertz
KIS Cruiser #4045

Anybody calculate the pump rpm with stock pulleys at engine rpm of 7000?
This is where Racing Beat says the threshold of cavitation is.
Too bad Bill doesn't have a variable speed motor on the test rig.  Onset of
cavitation is signaled by a sudden drop in flow, not a complete stop.
Should still be able to detect it if the flow numbers fall below Bills
projected values on the chart.

Tracy Crook
tcrook@rotaryaviation.com

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