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Wondering if anyone has put SHARROW propellers on their Grady 330 they are $5,000 but say they can increase mpg at cruise by up to 30% , completely change cruising speed and reduce noise and engine wear and tear because running at lower rpm I created a new thread asking for anyone out there who...

I have been looking into putting the new SHARROW propellers on my 2004 Grady white 330 that is powered by f300 Yamaha's and am wondering if anyone out there has them and can give real world performance information to me and the community. Sharrow propellers has test info on a number of boats...

what is up with my computer?? GRADY-WHITE not grays

gray white- not grey

Always working to try to tilt the engines to try to get the sweet spot for best performance/push angle-height. I'm still just wondering why the Yamaha techs mounted their f300 engines at #2 hole = 1 up vs the grays performance sheet of all the way down #1 hole and if it gave better overall...

Its true that there is more boat owners than you would think who fake their engines with different decals. I would doubt the prior owner would ever do something like that. It is funny to see like a scarab in Miami for sale with 450HP decals and then in the ad it says 350's with 450 decals...

Thanks guys for the info so far added to the post

Bert Kelly from Grady White did send me a 2010 performance spec sheet for a 2004 330 with f300's. The engines were mounted in the #1 hole = lowest position. The sheet shows better performance than I am getting. It showed a top end 44mph, best cruise at 4200rpm 29.9mph at 1.25mpg 32.9mph at...

Engine mounting height plays a enormous role in speed/performance as does propeller style, pitch and diameter. many times engines are mounted too low. I am purchasing a 2004 330 with 2014 f300's and it isn't performing as well as expected. the engines are mounted in the #1, top hole, lowest...