I've got a 2009 tracker flat bottom 16.5 foot boat with a 2009 60hp Yamaha 4 stroke tiller. I have a 14pitch prop. I am revving 5300 rpm and getting 38mph. I would like to know if I was to use a 12 pitch stainless steel, would I be closer to revving 6000rpm and would I gain speed to 40mph...
