prop pitch

[jrzmotorcycle]

Hey fellas... If I up my pitch by 2.... From 10 to 12 on a 20 HP 4 stroke, on a 12 ft. Sib, will I be able to get a couple of miles an hour more out of it???? wot is around 25 mph with only me.... Could iI get 27??? Thanks Joe.

[Nos4r2]

Maybe-depends what you're revving to on your current prop.

[Max...]

As Nos says you need to fit a tinytach and see what you get at WOT. Is it worth it though for 2 mph? If you are getting 25mph on a 3.6m SIB that's pretty good going.

[dave3235]

Originally Posted by jrzmotorcycle

Hey fellas... If I up my pitch by 2.... From 10 to 12 on a 20 HP 4 stroke, on a 12 ft. Sib, will I be able to get a couple of miles an hour more out of it???? wot is around 25 mph with only me.... Could iI get 27??? Thanks Joe.

Hi

As said in previous, that pitch prop is ok for towing toys.I run a 13p and will reach more or less 25 mph.I have a tach but not fitted yet but think it will push a 15p if on my own,or with someone light.Have asked what others run but feed back is limited.Get a digital take for around a £10.