Motor too Heavy?

[knouse94]

I have a 15.5ft venture bass boat. It is only 5.5ft wide at the widest point so its not a very big boat. The transom is 2.5 inches thick. I have a 1976 Johnson 70hp which weighs 235lbs. That is what the website that I found said anyway but I am not sure. I also have a CMC tilt and trim system which is 63lbs. Is this going to be to much weight on the back of my boat? I plan on mounting the CMC with plates behind all bolts to spread out the pressure on the transom. Thanks

 

[oops!]

Re: Motor to Heavy?

Re: Motor to Heavy?

your fine.....a 70 on a 15.5 is great

 

[knouse94]

Re: Motor to Heavy?

Re: Motor to Heavy?

Thank you I appreciate the info.

 

[Huron Angler]

Re: Motor to Heavy?

Re: Motor to Heavy?

I'm planning on running the exact same setup on my 16' aluminum boat so I see no issues with what you are doing. The CMC bracket does add leverage being 6" out, so good idea to use the backing plates.

That motor is a good one for your boat like oops mentioned, great power to weight ration on the 3-cyl Johnson/Evinrudes.

 

[Evinbuck]

Re: Motor to Heavy?

Re: Motor to Heavy?

Just for your information the formula for motor size is simple........length x beam.......15.5x5.5 = 85.25 or maximum 85hp