Best prop for a pontoon boat?

[smokenjoe123]

I've got a 20 ft pontoon with a mercury 850 (85hp) on it.This outboard has a 19 pitch on it now but I'm sure it's not the right one.

 

[smokenjoe123]

I've got a 20 ft pontoon with a mercury 850 (85hp) on it.This outboard has a 19 pitch on it now but I'm sure it's not the right one.Im looking for all around good performance.

 

[Scott Danforth]

You have to first get your motor height correct. Then you dial in the prop

My guess you will be in the 15p range

 

[smokenjoe123]

You have to first get your motor height correct. Then you dial in the prop

My guess you will be in the 15p range

Thanks I was thinking a 15 p would be more appropriate. It don't have power tilt so I have to do it manually. I know it's not going to scream across the water but hoping it will run better than the 12 to 13 mph that my 50 hp does lol.

 

[Scott Danforth]

You may do 15-18

 

[jlh3rd]

I've got a 20 ft pontoon with a mercury 850 (85hp) on it.This outboard has a 19 pitch on it now but I'm sure it's not the right one.Im looking for all around good performance.

I have a 24' pontoon with twin 25" tubes. It came with a merc. 60hp Big Foot, efi, 4 stroke. By myself on a cool day I might almost see 21 mph.
Its got a 115 on it now.
I can't see yours doing less unless there's a problem.
What is WOT RPM?

 

[smokenjoe123]

I don't have it on the boat yet.I just thought that a 19 pitch on an 85 hp is to much for a pontoon boat.

 

[jlh3rd]

I've got a 20 ft pontoon with a mercury 850 (85hp) on it.This outboard has a 19 pitch on it now but I'm sure it's not the right one.