Originally Posted by
Bamaman
Pontoons with larger engines are good for the high 20s before they hit a speed wall. They are displacement hulls plowing through the water.
A 20 ft. Bennie usually has 25 inch toons and the 90 hp 2 stroke should be good for the high 20's with the right propeller. You should be looking for 5800 rpms max.
Why don't you call Bennington's customer service and see if they can suggest a good propeller for your hull and engine? Or, call The Prop Gods in Florida and see what they suggest.
Those 40 mph pontoons have lifting strakes on the toons which get the nosecones out of the water. Most are also tritoons. And they are great rides.