Anyone??? how much HP should she handle?

[Mainiac]

I have an 18' aluminum closed bow boat. I have been unable to determine the make of the boat, it is very deep-sided. I need to replace the outboard and would like some input on what the boat should handle. I would like to put a 115hp on it....any thoughts?

 

[JB]

Re: Anyone??? how much HP should she handle?

Too little info on the boat, Mainiac. Got a pic??

 

[Mainiac]

Re: Anyone??? how much HP should she handle?

I do have some pics.... havent had much luck getting them to work on here....would more measurements help? or tips on how to get my images to work?

 

[ondarvr]

Re: Anyone??? how much HP should she handle?

This will tell what the max HP should be.

http://files.dnr.state.mn.us/education_safety/safety/boatwater/backyardboatbuilders.pdf

 

[Mainiac]

Re: Anyone??? how much HP should she handle?

Thanks a lot.... as long as my calculations are correct I think the boat will handle a 130hp outboard so a 115hp should be perfect. Thanks for the link it was very helpful! 18' aluminum boat, 6' transom width and 20" transom height. Now just to find a good deal on an outboard!