Go with the recommended diameter and pitch prop. If you're running 1500-2000
rpm below recommended WOT rpm's you're putting a tremendous amount of torque
load on the engine.

The numbers still don't fully compute, though. You're either giving the
wrong specs for your current prop, or the engine has more problems thatn
just the wrong diameter prop.


"hdb" wrote in message
ups.com...
My tach is not really working but if I had to take a guess I would
probably say somewhere near 3000 or 3300 RPM
Wes