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Jan 23rd, 2013
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Alumacraft 1860 Tunnel horsepower recommendation #12605392
02/01/18 05:31 PM
02/01/18 05:31 PM
Joined: Jul 2007
Posts: 584
Lufkin, TX
A
A draper Offline OP
Pro Angler
A draper  Offline OP
Pro Angler
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Joined: Jul 2007
Posts: 584
Lufkin, TX
I'm replacing my current jon boat. I've been running a 16x48 all weld semi V for years but I need a bit more room. With a 18x60 with tunnel, how much horsepower is needed to make the tunnel work effectively? 115 hp is the max rated and 60 hp the min Alumacraft rigs them with. I'm thinking 75 or 90 hp. Anyone run one of these rigs?

Re: Alumacraft 1860 Tunnel horsepower recommendation [Re: A draper] #12605427
02/01/18 06:02 PM
02/01/18 06:02 PM
Joined: Jan 2005
Posts: 6,054
Seadrift TX
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Pat Goff Online content
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Pat Goff  Online Content
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Joined: Jan 2005
Posts: 6,054
Seadrift TX
I sold and rigged a bunch of them, it's a good hull. Put the 90 or 115 on it. Nobody ever whined about a rated motor, everyone who went less regretted the decision.

You'll want to set it up with a 4" bob's hydraulic plate, powertech flats cup prop and a compression plate, that will allow you to run with the prop completely above the bottom of the hull. 4" run depth easy.


Pat Goff
Seadrift TX
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Re: Alumacraft 1860 Tunnel horsepower recommendation [Re: A draper] #12607637
02/02/18 08:37 PM
02/02/18 08:37 PM
Joined: Jan 2003
Posts: 3,743
The Woodlands Texas
texcajun Online content
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texcajun  Online Content
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Joined: Jan 2003
Posts: 3,743
The Woodlands Texas
If you can afford the 115, put it on there. DO NOT GO WITH LESS THAN 90! You will be terribly disappointed. Just got rid of a 1650 Alumacraft tunnel hull and like Pat mentioned, hydraulic jack plate, cupped prop and a compression plate will allow you to get every bit of performance out of it.

I love tunnel hulls, as they'll go places a conventional hull won't, but there are trade offs. If you're looking for a speedy boat, stay away from the tunnel. They are designed to go skinny, not fast. That's why you want to go with the biggest motor you can get. Anything less than 90 and that boat'll just be a dog.

Last edited by texcajun; 02/02/18 08:38 PM.

2002 Scandy White, 2002 Yamaha 90
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