1995 baha 299 twin inboard to twin outboards

[rick powell]

I have a 1995 baha 299 twin inboard wanting to change to twin outboards. I have a set of twin 225 Honda four strokes and a Armstrong bracket to do the motors. My main concern is how much should I build up the transom to hold the bracket and if I should build the transom up all the way to the top or to just the height of where the bracket connects . Should I put several layers of glass on before I start with the plywood?

[jacquesmm]

Where the inboards straight shaft or stern-drive?
That makes major difference.

Close all the way to the top is always stronger but no need to go full clamping board thickness all the way up.

Do you have pictures?

1st question is the most important.

[rick powell]

it is a straight shaft inboard. Was hoping to go two layers of 1/2 inch marine ply and one layer of 3/4 marine ply. Just don't know if its better to run a sheet of glass between each one or just apoxy the sheets together. My thoughts were to drill some holes thru the transom to threw bolt the first sheet together ,then screw the next sheets one at a time to build the thickness up to at least 2" thick. was going to epoxy one side and the ends then screw together and remove the screws as I go to the next sheet.

[rick powell]

will try to get some pics to post.

[jacquesmm]

Post pictures first.
Twin 225 are going to need a 2.5" transom, that's an industry standard (USCG and ABYC).
Fiberglassed etc. and I will give specs later.

Now, there is another problem: weights.
That is why I asked stern drive or straight shaft.
You move the weight of an inboard all the way to the stern. We need to keep the boat balanced or the trim when getting on plane is going to look like the dolphin show at Seaworld!
Post pictures and tell me where the fuel tanks were.
They must move forward.