Repower

[hydroman]

I have a used boat with a 30" transom, but I own a 25" single outboard. Besides buying a new engine with a 30" shaft, is there a cheaper way to mate the two. I've looked at Armstong outboard engine brackets and have considered having one made locally. Any ideas? My boat is a 24' Bayliner Trophy (project boat-bought it dirt cheap and abused). The boat will take up to 300 hp, but right now I have a 100 hp commercial just to get me around the lake (not interested in sking just motoring around).

 

[Dhadley]

Re: Repower

Since we're guessing you dont want to cut the transom, a bracket or set back is the easiest thing to do. Rule of thumb - for every 5" you go back you can go up 1". So, with a decent 3 blade prop you can probably run the X dimension at about 26" to 27". With a good 4 blade prop you can run around 28" or so. You could probably use a 10" manual jackplate and, depending on your prop choice, add the 2" spacers to the jackplate if needed.<br /><br />It would also help to know what motor you have and the angle of the transom.<br /><br />Good luck!

 

[Dhadley]

Re: Repower

Another thing that allows a higher X dimension is one of the larger fins. Something that starts in the front and goes past the back of the anti vent plate. Something like a King Fin will allow for about another 2". <br /><br />It's not that unusual to see a 20" motor on a 25" transom, which is basically what you are dealing with.<br /><br />Good luck!