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6 hp on a classic
chiburis4	#1  Posted on 05/29/12 - 8:41 AM
Member Personal Page Posts: 53 Comments: 0 Joined: 11/12/07	I just picked up an old 6 horse Johnson for my Katama and it works well. It'll push it about 4.5 to 5 MPH measured on a GPS. I think that's the best it can get unless I move up in HP. Anybody have the same numbers? How about anyone with an 8 horse? I think there has to be a threshold limit for the hull until it gets on plane.
tom blinstrub	#2  Posted on 05/29/12 - 8:48 AM
Member Personal Page Posts: 369 Comments: 0 Joined: 12/14/09	I have a 8 hp on my Katama and my 21 and it's plenty. The 21 will get 4-5 knots and the Katama a little more. Your 6 should be plenty.
lovemaiboat	#3  Posted on 06/24/12 - 9:42 PM
Member Posts: 26 Comments: 0 Joined: 11/13/11	i have a six horse on my 16'7" custom, with no wind i can get 3+ knots. what size and pitch prop do you have? 1963 16', 2013 75 hp E-TEC, 50 years of great fun in between
chiburis4	#4  Posted on 06/25/12 - 5:04 AM
Member Personal Page Posts: 53 Comments: 0 Joined: 11/12/07	I don't know the prop info but if it helps it's a johnson Sea Horse about 1973. I can take a pic if you think that will help.