bayliner trophy propellor/ speed question

[inchman]

hello, i have a 1988 bayliner trophy hardtop fitted witha a mercuiser 3.0 liter engine and an OMC cobra leg. currently the boat will do 20 knotper hour (sog) and reving at 4000 rpm wot. (2 adults and 2 kids in boat) is this as fast as i could expect or would a change of prop help get me a bit more speed. has anybody any suggestion for what size of prop they have on similar boats,
or has any body got a program where you can input your data and get a prop size to suit.


thanks in advance

cheers Gary

 

[Haut Medoc]

Re: bayliner trophy propellor/ speed question

How big a boat?.......
What prop are you running now?.....​

 

[inchman]

Re: bayliner trophy propellor/ speed question

sorry, the boat is 21 foot long and there are no marking on the prop on it..

cheers gary

 

[Don S]

Re: bayliner trophy propellor/ speed question

Moving to the Prop Topics and Questions forum

 

[inchman]

Re: bayliner trophy propellor/ speed question

anybody even running a similiar size boat and power plant any suggestions to get it to rev to 4400 rpm

cheers Gary