20SC w/ 115 #'s and opinions needed

[mrobertson]

Alright guys -

I've got my engine height where it needs to be. On plane my anti-cavitation plate is completely out of the water.

5500 RPM = Safe Operating Range

Black Diamond 13 3/4 x 17 aluminum prop gives me a WOT 5100 - 5200 at about 33 mph.

Black Diamond 13 1/4 x 15 aluminum prop.................i can peg that 5500 with more to spare with a full tank of fuel and 2 large adults. I'm not sure exactly how far above 5500 it would go, i was scared to let it wind up and damage the engine.

In any case - there's nothing that quicksilver offers that's between those sizes. I'm wondering if i go stainless on a 13 1/4 x 15 if that would be the ticket.

Holding it at 5500 (not going above) i was getting slighly over 35 mph trimmed out with the 15p.


Any thoughts????