Additional horsepower for 16' Jon boat

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Additional horsepower for 16' Jon boat

Postby luie b » Fri Jun 20, 2014 4:13 am

Right now I have a 16' polar craft Jon boat with a coast guard bow running a 5 horse merc 2 stroke. I'm looking into getting a bigger outboard on it because right now it tops out around 8-10 mph and am wanting to get it up to around 20 mph. How big should I go as far as size to get this kind of performance. I was thinking about getting a 10 or 15 horse but don't know if that will make much difference. Any thoughts?

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Re: Additional horsepower for 16' Jon boat

Postby berganser » Fri Jun 20, 2014 5:48 am

I'd look for a 25hp and Nothing Smaller. That's what I have. Should be enough for your use.
Unless you wanted bigger. See what's it rated for and maybe step up to 30 or 40. That would be up to you.
Last edited by berganser on Fri Jun 20, 2014 11:12 am, edited 1 time in total.
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Re: Additional horsepower for 16' Jon boat

Postby Boatman » Fri Jun 20, 2014 7:57 am

16X48 go with 20-25 hp if your planning on duck hunting out of it. 15hp will work with a light load.
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Re: Additional horsepower for 16' Jon boat

Postby T Man » Fri Jun 20, 2014 7:13 pm

berganser wrote:I'd look for a 25hp and Nothing Smaller. That's what I have. Should be enough for your use.
Unless you wanted bigger. See what's it rated for and maybe step up to 30 or 40. That would be up to you.


I run 23 with a full fishing load and another Guy in my 1652 with a 25 hp
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Re: Additional horsepower for 16' Jon boat

Postby QuackerSmacker498 » Fri Jun 20, 2014 8:01 pm

I have a 1448 tracker sportsman with a 20 HP merc 2 stroke. 380 lbs in man and light fishy load we get 20 mph. It has more than enough power to get the boat on plane in a short distance. I should probably change the pitch to get a bit more top end out of the motor.
Hopefully this gives you an idea of what to expect.
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Re: Additional horsepower for 16' Jon boat

Postby gearhead80 » Fri Jun 20, 2014 9:27 pm

Run the MAX HP rated for the boat and be done..
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Although, being a forum the next guy will know more no matter what.
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Re: Additional horsepower for 16' Jon boat

Postby luie b » Fri Jun 20, 2014 9:49 pm

That's what I'm starting to think would be wise. I'll have about a grand to spend on it so I think I could find d something used and about 20 years old for that. Probably try to buy it from a marina so I dont have as much chance of being screwed over.

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Re: Additional horsepower for 16' Jon boat

Postby mudpack » Sat Jun 21, 2014 7:58 am

gearhead80 wrote:Run the MAX HP rated for the boat and be done..

Good advice.

Actually, my rule of thumb is to run about 50% OVER max rated hp for the hull. Aaaarr, aaaarr, aaarr....
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Re: Additional horsepower for 16' Jon boat

Postby captainduckhead » Sat Jun 21, 2014 8:05 am

I owned several of those 16' Polar Craft boats. The smallest engine I ever had on one was a 25. I hade an evinrude 55 on my last one. I was happy with the performance, but keep in mind, the harder you run it, the less life you'll get out of it. When I said I've owned "several" of those boats it's because 1- They're cheap and 2- I abused the crap out of them.
They were work boats that doubled as hunting boats when I wasn't working with them. The big horses made for leaky boats. Rough water really beats them up. Unless you have someplace to go in a real hurry, or you use it daily you'd be better off with a 15 - 25 hp. You'll be replacing less rivets and get more life out of it.
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Re: Additional horsepower for 16' Jon boat

Postby luie b » Sun Jun 22, 2014 8:53 am

I don't run it everyday and I don't get in too much of a hurry anywhere except when I'm in the channel on the river then I let that motor eat!

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Re: Additional horsepower for 16' Jon boat

Postby omaha » Sun Jun 22, 2014 9:50 am

For a grand you can get a nice motor on craigslist. Keep your eye out for motors


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