Question on a prop

[gdshepard]

I purchased a 26 foot 92 Lowes pontoon with a 93 50HP Evinrude. I ran this for one season but was unhappy with the speed about 7 mph. Last summer I lost the lower piston. I found a used 83 115HP and put it on the boat. My speed is now around 15 or a little better but my RPM's at WOT is about 4350. I was thinking of changing the prop to put the WOT at about 5300-5500. With price in mind what would be the better prop, blade number and or type.
Thanks for any help.

 

[Silvertip]

Re: Question on a prop

This post should have been placed in the PROPELLER forum. And before you do that, at the very top of that forum there is a "sticky" that is titled READ THIS FIRST. It explains what information is needed to answer most performance related prop question. In your case, we have no idea what prop you have now so we can only guess what you need. If you only got 7 MPH with a 50 HP and now only get 15 with a 115, I'd suggest you have two logs containing some water or a very heavy pontoon so check that first.