I have a 20 ft center console with a merc 200 efi pushing it around. I also have a 15 hp 4 stroke on the transome and that makes her a little fat in the ***. At over 3/4 throttle all she wants to do is porpoise untill I lower the trim tabs quite a bit. That holds her flat through WOT but at a considerable speed cost. I am currently pushing her with a 19p stainless prop. Boat maxes out at about 5200 rpm and 52 mph depending on conditions. Question is, is there a prop that might overcome the porposing problem without so much down on the trim tabs? Wierd thing is I used to have a 21 p prop and it would run at 5200 rpm with that also.
Thanks
Bruce
Thanks
Bruce