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Reload this Page Tunnel Hull Advice

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  #1  
Old 10-13-2014, 10:57 AM
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Originally Posted by 1fastmerc View Post
If you're looking for stability and room get the 48" bottom but if you're not get the 42" or 46". With a stock mercury 40 with a console plywood floor a big front deck and three big batteries it'll do 30-31mph. Not a speed demon but a comfortable ride. I had it in Biglake a Friday in the wind and never was concerned. It handled the waves very good. My only complaint is the tunnel on the 48" bottom is wider than the tunnel on the 42" bottom and to me it doesn't run as shallow. That being said I know the boat is heavy with all the batteries in it. I'm fixing to reduce some weight in it and hopefully it'll improve some.

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Hell I run 32 mph in my 16x42 all day long with one battery and an aluminum floor, ice chest and 6 gallons of gas but length does slow you down a lot. I didn't know that about the tunnel on the 48" boats, I don't like that .
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  #2  
Old 10-13-2014, 11:06 AM
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Hell I run 32 mph in my 16x42 all day long with one battery and an aluminum floor, ice chest and 6 gallons of gas but length does slow you down a lot. I didn't know that about the tunnel on the 48" boats, I don't like that .
I have had problems getting the boat proped right and I think part of it is the tunnel. That's just my uneducated opinion. Lol

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  #3  
Old 10-13-2014, 11:07 AM
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And I forgot to include a 12 gallon gas tank also.

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  #4  
Old 10-13-2014, 01:27 PM
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Merc what motor are you running?
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Old 10-13-2014, 01:43 PM
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Merc what motor are you running?
Sorry I thought I had included that. 😶 I'm running a stock 3cyl 40hp merc.

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  #6  
Old 10-13-2014, 02:05 PM
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Sorry I thought I had included that. 😶 I'm running a stock 3cyl 40hp merc.

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Crap you sure did..."F" in reading comprehension for myself!
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The cops are the experts on the current criminal trends. If they have determined that a “high capacity” semiautomatic pistol and a .223 semiautomatic rifle with 30-round magazines are the best firearms for them to use to protect people like me and my family, they are obviously the best things for us to use to protect ourselves and our families .
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  #7  
Old 10-13-2014, 02:16 PM
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Crap you sure did..."F" in reading comprehension for myself!
Lol. I thought I did but I just typed it again and didn't even check.

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  #8  
Old 10-13-2014, 02:28 PM
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Im also shooping for similar rig.

Southfork .80 gauge 18/42 Tunnel $2,500.

The 48" Southfork tunnels are .100 gauge, I didn't price that model.

The Southfork model i quoted had a "performance tunnel" not the deep tunnel, but they prob make deep tunnel.

I priced Alweld 18/44 and 20/44 La Model with deep tunnel this am, I believe price was around $2,700 and a little under $3,000.

I'm leaning heavy on the 20/44 Alweld with deep tunnel. I'm not too concerned with speed, and I would prefer not to run jack plate if possible.

What I would really like is a true flat bottom 19/50 Custom Tunnel but that's a little more $$$ than I'm wanting to spend.

Anybody have any 1st hand feedback on the performance tunnel vs deep tunnel?
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Old 10-13-2014, 02:34 PM
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One more thing, IMO if your pricing a Tunnel Hull and your getting up around $4,000 you might wanna think about a custom built boat or a good used custom built boat.
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  #10  
Old 10-13-2014, 03:09 PM
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I have the 18/44 alweld performance tunnel. Very stable and solid built boat. Have t got real shallow with it yet. But runs good
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  #11  
Old 10-13-2014, 03:30 PM
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I have the 18/44 alweld performance tunnel. Very stable and solid built boat. Have t got real shallow with it yet. But runs good
I was wondering what you had, i remembered you got a new rig...
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The cops are the experts on the current criminal trends. If they have determined that a “high capacity” semiautomatic pistol and a .223 semiautomatic rifle with 30-round magazines are the best firearms for them to use to protect people like me and my family, they are obviously the best things for us to use to protect ourselves and our families .
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  #12  
Old 10-13-2014, 04:52 PM
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I have the 18/44 alweld performance tunnel. Very stable and solid built boat. Have t got real shallow with it yet. But runs good
This is what I have. Running it with a 2 stroke yamy 25hp. Runs very shallow, start in water where boat is sitting on the mud in 3 inches of water. Also run an old southfork light weight 20/42 w/ a 25hp 2 stroke merc. This boat will go places the alweld can't.
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Old 10-13-2014, 04:54 PM
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This is what I have. Running it with a 2 stroke yamy 25hp. Runs very shallow, start in water where boat is sitting on the mud in 3 inches of water. Also run an old southfork light weight 20/42 w/ a 25hp 2 stroke merc. This boat will go places the alweld can't.

Are you running no jackplate? I have a 10" setback plate on mine and I think it's too much. I'm running a 40 tohatsu tldi. What prop u spinnin?


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  #14  
Old 10-14-2014, 09:11 AM
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Are you running no jackplate? I have a 10" setback plate on mine and I think it's too much. I'm running a 40 tohatsu tldi. What prop u spinnin?


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No jackplate on either. I'll have to check on the prop....Prop Shop set up both boats years back.
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  #15  
Old 10-13-2014, 04:52 PM
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I had a 1648 with a performance tunnel. It would not run without porpoising with my 40 merc. Lake Area bought it put a Tohatsu on it and it ran fine.

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  #16  
Old 10-13-2014, 07:22 PM
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I just purchased a 16x42 southfork from Watercraft marine in Beaumont. It was $1900 cash. It wasn't a tunnel, although they did have some 18x42 tunnels in stock. Not sure what they have on wider boats. Very friendly people and $200 cheaper than our local dealer.
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  #17  
Old 10-14-2014, 09:15 AM
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what is the limitations the 10" setback is causing?
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The cops are the experts on the current criminal trends. If they have determined that a “high capacity” semiautomatic pistol and a .223 semiautomatic rifle with 30-round magazines are the best firearms for them to use to protect people like me and my family, they are obviously the best things for us to use to protect ourselves and our families .
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  #18  
Old 10-14-2014, 09:48 AM
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what is the limitations the 10" setback is causing?
Well it's a pain to put in and out of gear and turn all the way. But I've also heard that tunnels run better with the motor closer to the tunnel.
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  #19  
Old 10-14-2014, 10:36 AM
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When you put the motor on a jackplate with a tunnel you loose the cone of water coming out the tunnel. Creates alot of prop slip. Defeats the whole purpose of a tunnel. Some people will extend the tunnel with a jackplate but I don't see the need for it.
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  #20  
Old 10-14-2014, 01:00 PM
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When you put the motor on a jackplate with a tunnel you loose the cone of water coming out the tunnel. Creates alot of prop slip. Defeats the whole purpose of a tunnel. Some people will extend the tunnel with a jackplate but I don't see the need for it.
Bingo, the water does not stay focused to the area of the prop once it leaves the tunnel so the farther back from the transom/tunnel the less water to your water pump and prop so less to grab hence the prop slip.
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