Patrickmcmanus
New Member
I have a picton sunsport 15.5ft boat with a 60hp on it which recently decide to die. Would 115hp be too much for this boat I can't find anything online to say the max power for it
Engine size advice
- Thread starter Patrickmcmanus
- Start date
Patrickmcmanus
New Member
Assassin
Well-Known Member
Look up the technical data for your boat and this will give the minimun and maximum horsepower it can take along with specific torque loadings and any structural approved modifications that can be done.
Assassin
Well-Known Member
According to the technical data the maximum engine size is 70 hp.
Patrickmcmanus
New Member
Perfect thank you very much I couldn't find it anywhere
bowler
Well-Known Member
A friend of mine bought a 16 foot Sims Super V years ago that had a 115hp Evinrude on the back. Way over powered but it was a blast to drive. It actually leapt out of the water when you nailed the throttle. I believe the max rating was also 70hp. Not saying it was advisable though, but it was serious fun.
D
D
Patrickmcmanus
New Member
??Sounds like fun haha. I'm more concerned about ripping the transum
Rappey
Well-Known Member
Many older boats had a max hp but that was for a 2 stroke.
I bought a boat with an old Johnson 60. I could pick it up as it was not that heavy. Total guess but maybe 60kg?
I had a honda 75/90 4t and it was 230kg !
I also tried a evinrude e-tec 90 after using a 2t mariner 90 and honda 90.
26 knts top speed went up to 32 and acceleration was like I had just gone to a 140.
Was impressive!
I would suggest looking up the weight of replacement engine then getting that weight of people to stand on transom to make sure it does not submerge.
You will notice a huge improvement in fuel economy going from a 2t to 4t
I bought a boat with an old Johnson 60. I could pick it up as it was not that heavy. Total guess but maybe 60kg?
I had a honda 75/90 4t and it was 230kg !
I also tried a evinrude e-tec 90 after using a 2t mariner 90 and honda 90.
26 knts top speed went up to 32 and acceleration was like I had just gone to a 140.
Was impressive!
I would suggest looking up the weight of replacement engine then getting that weight of people to stand on transom to make sure it does not submerge.
You will notice a huge improvement in fuel economy going from a 2t to 4t
BruceK
Well-Known Member
Note your insurance may become invalid if you oversize the max hp rating.
Patrickmcmanus
New Member
The 115hp is about 50kg more than the 60hp I'm sure it wouldn't make that much of a difference
BruceK
Well-Known Member
It's not weight, it's when it rips your transom off under full power and lands in your lap
Patrickmcmanus
New Member
That's what I'd be worried about