pitch of prop

[12345]

could someone please explain to me what pitch prop i need and how you work out which prop i need to get my boat to go faster without reving the nuts out of the engine too much? (simply as this is all to confusing for me)I have a 1981 evinrude 60 hp engine model No# E60ELCIA serial No# B010892 Oh and with gullwings, on a 15.5ft glaston speed boat with a small home made cuddy on the front. she is only getting 27knots she would get 22 knots with my old 30hp mariner but that i was told was a 6pitch prop and the engine was screaming but run very well doing so this all makes no sense to me as i have been told so many different things, many thank to anyone how can help, Tony

 

[Dhadley]

Re: pitch of prop

We have to know what the top rpm of the motor now is and the pitch of that prop. That will give us a starting point.<br /><br />It's like mapping out a trip. We know where we want to go but to figure out how to get there, we have to know where we are now.

 

[JB]

Re: pitch of prop

The best way to find out is to go to the Prop Forum, where I am moving this.

 

[12345]

Re: pitch of prop

hi Dhadley,<br />how can i find the rpm of the motor? no rev counter or any guages for that matter so i can only assume that it should be what the evinrude company say it should be but i have no manual to find out what that is? and the prop on the outboard at the moment has no markings at all. thanks Tony

 

[12345]

Re: pitch of prop

hi JB,<br />just to let you know i'm also new at this pc stuff, and it's all a bit much to take in at the moment as i'm still learning to type. so finding my way around new sits ect is a bit hard going as i also don't really get the time to sit and learn much stuff. but thanks for your help it runs really sweet now. were do i find the prop forum as i can't seem to find a heading for it? or am i just being a bit thick?