I have 115hp Johnson OB on a 35' pontoon hull when I test drove this boat I was told they never went over 3000 rpm and said the boat wieght to much to go over that. Regardless of the wt arn't rpm's rpm's? Am I wrong to think that the same motor on a smaller boat would probably top out around 5000 rpms and there for would be the same on a houseboat. only the speed would change right? If so what would be top rpms on this motor? Not looking to break speed records here just a new boat and I am just wondering. I know you can play with props to get better speed, milage, ect.
OLD HOUSEBOATER
Super moderator
Posts: 1520
Joined: 10/18/2002
You should prop the boat to at least 5000 RPM. Check with the builder of the boat. Most 35 footers are rated for more than a 115. Info should be on the boats data plate.
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08/06/2007 05:43:15 PM
