thinking about a third partial toon, no new transom

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fiddlebick
Posts: 143
Joined: Sat Aug 27, 2011 8:46 am

thinking about a third partial toon, no new transom

#1 Post by fiddlebick » Wed Mar 21, 2018 9:06 pm

2005 Bennington 2575, honda 135 4 stroke. I have an opportunity to get a third log, 25", which is the same diameter as my logs. Has anybody added a toon to a boat this size with similar HP? I've found posts about shorter boats with a third toon added. I can currently run about 25mph with me and the wife on board. I wonder if I'd get a few more MPH to make a little better ride for my grandsons on the towables. I will not be upgrading the motor either, and it would be more of a 3/4 tube installation short of the motor pod.
"I may be old....but I am slow!" 2005 Bennington Rfs, 2004 Honda 135.

ron nh
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Location: Litchfield New Hampshire

Re: thinking about a third partial toon, no new transom

#2 Post by ron nh » Thu Mar 22, 2018 10:55 am

I think your boat is the perfect candidate for that, It's plenty big with enough power to justify doing it. You'll get a much better ride and probably hit low 30's MPH if it's all done properly.
2015 Qwest LS 818XRE Tri-toon w/mercury 115.

willy13
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Location: Canandaigua Lake in NY

Re: thinking about a third partial toon, no new transom

#3 Post by willy13 » Thu Mar 22, 2018 5:30 pm

There needs to be lifting strakes on that 3rd toon, are there?

Bamaman
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Location: NW Alabama--Tennessee River

Re: thinking about a third partial toon, no new transom

#4 Post by Bamaman » Thu Mar 22, 2018 7:34 pm

I would suggest you look at a new Bennington with the Express Tube in place. The rear of the center tube is very close to the front of the engine pod. Copy what Bennington has done--using a center toon the exact size the factory would use.

I would think with lifting strakes on the center toon, you'd be good for 35 mph. If your boat has never been underskinned, do it at this time. A new prop may be warranted to get 100% out of your boat.
'12 Bennington 24' SSLX Yamaha 150

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lightpants
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Location: Lancaster, PA

Re: thinking about a third partial toon, no new transom

#5 Post by lightpants » Fri Mar 30, 2018 1:22 pm

I have a 24' boat with 115hp, I added a shorter center tube with lifting strakes.
I didn't gain much in MPH, but the ride is much better!
The 3rd tube will add drag, slowing you down, but that is offset by the fact that you will be riding higher in the water.
It will be night and day, how you handle waves after you add the 3rd tube.
I recommend it.
97 Fisher Freedom 240 - 09 Optimax 115 - added 3rd pontoon with lifting strakes
former Pontoon Water Glide Owner (5+ years, on 2 different boats)

DWRAT
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Re: thinking about a third partial toon, no new transom

#6 Post by DWRAT » Mon Apr 09, 2018 9:44 pm

I picked up 2-3 mph when I added my 3/4 toon with lifting strakes.
2012 SouthBay 722CRO 115hp Merc 4-stroke. Edit, make that a 150hp Merc 4-stroke now.

TDJ2591
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Location: Smith Lake, AL

Re: thinking about a third partial toon, no new transom

#7 Post by TDJ2591 » Thu Apr 19, 2018 10:38 am

What speed are you getting with the Honda 135 and what prop are you running? I have the same engine on a 2005 Crest 25’ and have always wondered how it compares to similar boats
[color=#4000FF]2005 Crest Caribbean 25'
2006 Honda 135hp 4 stroke[/color]

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