[Putershark]

Originally Posted by haweater

i've been experiencing the same porpoising issue with my '04 191 f/s so it was good to see someone else with the same problem. mine has a suzuki 140 engine which, according to my dealer, should run comfortably at 6,000 rpm. i can't get it past 5,000 rpm even after added transom wedges. the wedges helped a little but the more you trim down the more the boat plows through the water which only serves to slow the boat down. i'd be curious to know if anyone found a solution to this problem. i'd like to max out the engine once in a while if i ever find some smooth water.
thanks

2 separate really issues...
1. Can't get past 5000 RPM (too much pitch / bite with the current prop)
2. Porpoising (most likely due to engine at the wrong trim angle for that speed) here again a prop change both in pitch and in blade config, can make a huge difference in overall performance. Many seem to forget that not only does the prop develops thrust, but also lift. Changing the running angle of attack on the prop will change where the water is striking the hull once on a plane... I would also check how the boat is loaded weight wise forward and aft as well as starboard and port