Quote:
Originally Posted by CharlestonSC
I have a 14.25x19 SS now and it takes off quick and tops out at 43mph on GPS at 59K rpm.
Think of a 14.25x21 to give me a better gas mileage and more top speed to get me to my fishing holes faster.
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A 21p (that's what I run on my 200 merc) might give you faster top end, depending on what your WOT revs read and what your engines factory recommendations are, but it will not give you better gas mileage. Just like a car, the faster you go the more gas you have to burn to achieve and keep that speed. Friction rules, and you cannot change the laws of physics.
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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.
If God didn't have a purpose for us we wouldn't be here, so
Live simply, Love generously, Care deeply, Speak kindly.
(Leave the rest to God) 
Silence, in the face of evil, is itself evil. Not to speak is to speak, not to act is to act. God will not hold us guiltless.
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