Prop - 1999 15 HP

[Calibra]

Hi

I am thinking about getting a new prop for my 1999 15hp Johnson 2 stroke.
The engine powers a 3.6m Rib

What pitch of prop should I look at? I want the best top speed possible

Thanks

 

[flyingscott]

Stainless prop will give you the best speed. But what rpm are you running max on that motor is 6000 that will determine pitch. Get a tiny tach and tell us what prop you have now and Rpm it runs at. Not an easy answer

 

[oldboat1]

could try cupping first. solid floor in that one, yes?

 

[Chrisravosa36]

I have a Johnson 9.9hp, had it on a buddys RIB 3.2m and it went 30mph with a 11 pitch prop, you probably are going to need the 11 pitch to, but go and get a cheep tach first. And stainless is the best. You dont want to rev that engine anything more than 6000 like Scott said, it could damage the powerhead or gearcase.