Thread subject: Whaler Central - Boston Whaler Boat Information and Photos :: 2000 Dauntless 22' Cavitation in turns

Posted by butchdavis on 06/05/16 - 7:13 AM
#2

There seems to be no perfect prop for any boat. If you want hole shot you sacrifice speed, etc, etc.

Generally, most Boston Whaler owners find the factory engine mounting position is not high enough for optimum performance. Some experimentation may be required to find the "just right" mounting height.

Another critically important factor is engine trim. With a high five prop you can probably leap on plane regardless of trim setting, but most of us have to trim the engine fully down to achieve "best" hole shot. For best top speed and/or maximum fuel economy I must trim the engine up until the boat just begins to porpoise then trim down very gradually until porpoising stops. The problem is that when running along at speed and attempting very sharp turns with the engine trimmed for optimum cruising operation a sharp turn can cause "blow out". The easy solution is to trim the engine down a bit before making a very sharp turn. When towing toys or skiers this can be very annoying, so when engaged in towing just trim down enough to make your turns and leave the engine there.