Posts: 767
Location: Ames, Iowa | Bronk- I have a 16 ft Sylvan with a 40 merc 4 stroke. Definitely underpowered. Wish I had a 60. Was porpoising a lot at any trim after I bought it until I put Nautilus trim tabs on it. Measured very carefully drilled thru the aluminum and sealed properly. They cost me 1.5 mph in speed, but the boat planes up quickly and no bouncing at all. I experimented quite a bit with proper setting and have them set at the lowest setting (#1). Now I have a nice smooth ride. Been a great buy imo. |
