Quote:
Originally Posted by bigshrimpin
Randy - IMO the 17P mirage plus is probably a very good for you, but your tach has to be wrong . . . unless your are sucking a lot of air . . . your slip would have to be more than 20% to turn 6000 with 2:1 and 17P and only achieve 36mph. GPS's don't lie. You can run the numbers and see for yourself.
http://www.go-fast.com/Prop_Slip_Calculator.htm |
I was going to comment that it sounded like he was cavatating. I think Bigshrimpin has his finger on the right button. Did you check your engine's cavatation plate with relation to your keel?.... Sounds like your engines up too high and you're sucking air. 
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1987 V20 w/1987 150HP Yamaha on a Shoreland'r Trailer
1978 16.5 Airslot w/1996 120HP Force on a Four Winns trailer
1996 V21 w/1993 200HP Mercury on a Shoreline Trailer
All towed by a 5.7L Hemi Durango.
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