prop

[searover]

Hi Guys, just a little question?, my engine 115 suzuki 4 stroke with a prop 14x21pitch will rev to 6200 . very quickly. as i want top end speed more ofton than low would it be a good idea to fit a prop with more pitch ie. 14 23p will 2" more pitch do anything.. thanks for reading this guys......

[cosworth mirage]

5-10mph depending on your gear ratio

[searover]

Thats quite a lot then ,so i can go more pitch, ok thanks for that. have a good weekend.

[aquatec]

The DF115 Suzuki has an operating range of 5 to 6000 rpm. At 6200 you are about to hit the rev limiter. If 6200 rpm is your max rpm going to a 23 pitch prop will bring the revs down by 4 to 500 rpm approx. You will then be in the correct rev range at wot. Just a thought, are you sure you have not got cavitation, a slipping prop bush or lumps out of the prop. As these things will cause the prop to slip. If all OK you will need to go to the larger pitch prop.
Aquatec.

[searover]

Hi thanks for that aquatec, yes it will rev up to 6200 very fast, but i dont use it up there though.prop is good and no cavitation, at all. at the moment i only rev it to abt. 5000 max. so ill try a 14x23 if i can get one. cheers for info