wrote in message
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On Mon, 12 Apr 2010 09:19:48 -0400, "mmc" wrote:

Bear in mind this is 4" above the stock location and the prop does
blow out on a hard turn at speed. My goal was shallow running
Thanks, I'm just trying to run down what my problem is and this will help
I
think. How deep was your cav plate in the stock position? We're shallow in
the IR Lagoon too but I still have a good couple feet whereever I want to
go.


4" lower ;-)

It would have been 4" below the water line at speed. Pontoon boats are
a bit different than a monohull and a lot depends on how the water
flows between the pontoons. In a perfect case it would mound up right
in front of the motor like a well designed tunnel hull and you could
mount the engine very high. The problem on a turn is the hull creates
a low spot in the water and starve the prop.

Thanks, I'll check mine and see where it sets. Probably the simplest fix
would be a couple of hefty females abaft the beam!