Powering a tri hull

[float2]

Looking for an OB to put on the back of an old 17 ft tri hull that weighs about 900 lbs dry. I have access to a nice running 55 hp Evinrude. I'm not looking for lots of speed this set-up will mainly be used for fishing. The boat is factory rated for up to 140 hp.
Anyone have a similar set-up and how do you or don't like it? This is just a cheap fishing rig nothing more.

 

[steelespike]

Re: Powering a tri hull

Rule of thumb power should be about 3/4 of the rated.
The 55 is pretty low but will do ok if propped right and you don't carry too much.

 

[Ross72]

Re: Powering a tri hull

55 hp would be ok for fishing and just cruising around. I don't believe it would pull a tube or skier. I had an 85 hp Chrysler on a 17 Ebko tri-hull this past summer and it screamed. Also, I used to have a 16' mark Twain tri-hull with a 40 hp Big twin and it would do 22 mph with just me. Add to buddies and I was down to about 15 to 16 mph.

 

[float2]

Re: Powering a tri hull

Thanks for the replies. Yeah no tubing or skiing with this boat.

 

[Home Cookin']

Re: Powering a tri hull

those old 55's were good motors. you just have to decide for your own use whether the lack of the top end speed/power is worth it. Also, consider where you boat; an underpowered boat can be dangerous if you need the extra power to handle adverse current and weather.