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On 26 Aug 2004 15:52:09 GMT, (Greg) wrote:

There is some degree of truth that more HP doesn't change the speed that much.
Pontoons are not speedboats and they never really "plane". You do get a degree
of laminar flow across the pontoons and there is definately a step but it takes
a lot more power to get a tad bit more speed.
When I went down from 75 to 60 my top speed changed about 1-2 MPH.

That's interesting. I thought the opposite because of the nature of
the two hulls. I would think that you would get more speed because of
the nature of the round, non-displacement type hulls. Unless that 1-2
Mph represents a large percentage of total speed.

Ask them what the prop recomendation is for both and what the predicted RPM is
with that prop.

Another good point.

Later,

Tom