the yamaha prop is 151/8 dia 22pitch 3 blade and the pt is 13.3/4 dia 22 pitch 4 blade. how much do you think it will increase rpms, boat 2021 x19 175 sho 10 jack plate i am running 5500 rpms now and 56mph with the yamaha t2. i have 2 talons on back full gas and me only prop to pad 41/2 inches had ptp up to 33/4 but it tries to porpoise with heavy load at low speed, i can trim more to get more rpms but tries to porpoise or walk on top end. reason for question i have a pt tr04 ordered to try
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