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Twin engines in a 26 to 29???

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Old 12-03-2002, 09:09 PM
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I have two twin SBC powered boats: a 24' Formula 242LS ('86) with Alphas, and a 28' Active Thunder ('99) with Bravos. Been an owner of the Formula for 9 years. Both boats are 70+ boats.
My observations of twins in this size boat-
1) Twins will get you home when you have a problem (I have experience here). When things get quiet with a single, call seatow. They are also more manueverable, and the cool factor has already been mentioned. If you're on lake that doesn't get real rough, and a lot of people are around to help out, a single BBC would be fine, unless you like the cool factor of twins. I personally will never own a single-engine offshore boat.

2) SBC engines live longer than BBC's. They were designed to be a higher revving engine as well. They are also easily upgraded, stroked, or supercharged. A Whippled 350MagMPI has the same perf numbers as a HP500EFI, at a very low boost level.

3) Have never had a problem with the Alphas in the Formula, even with 360 hp engines. They share the load. If I keep the boat I will install a counter-rotating drive (port). Twins in a boat this small makes it transom heavy, but this was greatly improved by aluminum intakes and exhaust .

4) The AT is a very well balanced 'fly-level' boat with the twin SBC's (the boat is not offered with twin big blocks). I am a firm believer in BBC's giving boats this size a less-than-desirable center of gravity. I looked at Powerplay, Pantera, Sonic, and Cig 28's before buying the AT.
A twin Scorp powered 28' AT, Sonic, Donzi, or 29' Formula or Fountain will go 80+mph economically.
I know if I go bigger, I will be in big blocks. Small blocks do make great boat engines though!
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Old 12-03-2002, 10:15 PM
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Bought my first boat with twins a couple of years ago. A 28 footer with twin big blocks. I could never go back to a single engined boat again. Why you ask ? Could it be the solid feeling it has going thru the water, the ease of docking, the ability to get home on one engine if need be, or maybe the extra speed & power, no my friend , it's none of these !! I don't know if I can put this into words properly because it's sort of a feeling or aura that can only be experienced by driving a boat with twins. It happened to me the first time I test drove the boat & I loved it !I think some of the other guys tried to explain it too, and I quote, Jafo called it " the cool factor " JT29 said " the sweet sound these make when running in sync " STEVE H notes " nothing sounds better than starting up 2 engines " RUSS calls it " awesome feeling that you get from having one motor running and having to fire up the second, how cool is that ! Put all this togeather, throw in some Tim the tool man Taylor logic, ARRG, ARRG, ARRG, and you get the twin engine boat mystic. You really have to drive one to know what we're talking about here. And as long as your going to buy a boat with twins, do you really want one with teeny, weenie, tiny small blocks, or one with GIGANTIC BIG BLOCKS !!! I know that the small blocks can be built to similar horsepower but you still have small blocks here. Wouldn't you rather tell everybody that 2 BIG BLOCKS are sittin under that hatch ?? Yes you would !! Well I hope this helps you make up your mind & I'll see you on Lake George In 6 months.

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Old 12-03-2002, 10:19 PM
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I have a 91 26' Nova with twin big blocks 454's and the boat is very stern heavy. The big blocks are 330's stock with silent choice. A guy at my marina had a 93 26' Nova with a single 502 magnum. His boat does 61 mph. My boat does 67 mph and it has bottom paint. I'm about to put some hopped up small blocks in mine to see if I can get better speeds. After owning both twin and single screw I recomend the twins. But Remeber everything you do cost double. But Steve H is right nothing sounds better.

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Old 12-03-2002, 10:43 PM
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Twins,Twins,Twins,
Got my first with twins three seaons ago. LOVE it. Like others have said cool sound when starting , better yet more manuverability when docking , and best of all...an extra engine to get you home.
Been there , done that. Last one was 22 miles at 10 pm at night. Didn't have to wait for BoatUS or SeaTow , or it probably would have been midnight
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Old 12-04-2002, 01:04 AM
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Quote:
Originally posted by Bo Knows
And as long as your going to buy a boat with twins, do you really want one with teeny, weenie, tiny small blocks, or one with GIGANTIC BIG BLOCKS !!! I know that the small blocks can be built to similar horsepower but you still have small blocks here. Wouldn't you rather tell everybody that 2 BIG BLOCKS are sittin under that hatch ?? Yes you would !!

nice
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Old 12-04-2002, 06:10 AM
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But most small boats under 30ft don't Handle well with twin Big Blocks! Thats why they went small blocks. Or 1 Big block.
(2) 6.2s or 350s then Vortech,Procharge or Whipple.
also Scorpions work well
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Old 10-12-2006, 03:49 PM
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Thumbs up Re: Twin engines in a 26 to 29???

My Dad had a 27' Mirage with twin 454's the boat was heavy but hauled balls. I have to disagree with the handling statement. The Mirage had a deep V that made it a champ in rough water.
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Old 10-12-2006, 04:23 PM
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Default Re: Twin engines in a 26 to 29???

Quote:
Originally Posted by EriksonFL
My Dad had a 27' Mirage with twin 454's the boat was heavy but hauled balls. I have to disagree with the handling statement. The Mirage had a deep V that made it a champ in rough water.
Where ya been for the last 4 years ???
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Old 10-12-2006, 04:49 PM
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Default Re: Twin engines in a 26 to 29???

I had a pair of 454 mag's with Whipples in this 28 Checkmate. It was hard to work on the motors but worth every skint knuckle when they fired up.
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Old 10-12-2006, 04:54 PM
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Default Re: Twin engines in a 26 to 29???

I have had both and I agree with alot of whats been said. when I went looking for my last boat I wanted 27 to 30 with a single. Mainly because I was buying new and with the materials and the way that boats can be built these days that size range only needs a single. the weight and balance of that size is perfect if it is done right. I looked at a lot of boats and ended up with a 28 Active Thunder with one 525 ITSxr the boat is huge for a 28 handles rough water better than alot of others that have twins and are well over 30ft as they measure them. the get home 2nd motor is fine but the dock handleing is nit much different. also my 28 has more cockpit and cabin room than alot of 30 and bigger twins. I guess my point is if you want a lake boat a single is all you really need. also ck price's and insurance cost and fuel is way better in my single oh and it will run in the 70s what more do you need? how about room in the engine compartment I can sit down with my baby
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