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What will be the result of changing twin to single

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Old 10-23-2007, 05:33 PM
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Default What will be the result of changing twin to single

26 Crestliner Rampage twin engine 350 ,260 hp.
I am plannig tgo rebuild to singel bigblock around 450 hp.

What will be the result??

Good or bad idea??
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Old 10-23-2007, 05:45 PM
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The result, a lot of work. thats a big boat for a single. You may upset the balance and make it bow heavy. What drive are you planning on using? What is wrong that has you concedering the the rerig? My first thought is it's not a good idea.
Jim
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Old 10-23-2007, 06:02 PM
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So you are going change the stringers and reglass the transom?????? sounds like a lotta work for nuttin. Small blocks are cheap and you could just add some HP to them for less money and a lot less work.
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Old 10-23-2007, 06:31 PM
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Hi again

I live in Europe everything is expencive.

1litre gasoline 2,22 usd (1 gallon 9 usd)
The service cost 3 times US prices

Fountain 27 Fever most of the boats are with singel engine
Same with Formula 27 Fastech

Even though the hull on the Crestliner are older it is only 26 feet and weight without engines are 4000 pounds

And the favt that I am buying the boat without engines and drives are also the reason that i consider a singel engine.
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Old 10-23-2007, 06:34 PM
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IMHO, it's a project you'll never finish once you see how much work is involved.
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Old 10-23-2007, 06:36 PM
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I have a local boatbuilder who rebuild the transom for a reasonable price.

From the test in Powerboat Mag the boat did 60 mph
with the twin smallblock 260 hp installation.
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Old 10-23-2007, 06:42 PM
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Well anyway, if I keep the boat as is I need to install 2 engines
and 2 drives.

DO anyone have any expirience with kind of the same experiment?? twin to singel??
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Old 10-23-2007, 10:53 PM
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Originally Posted by Monaco20
Hi again

I live in Europe everything is expencive.

1litre gasoline 2,22 usd (1 gallon 9 usd)
The service cost 3 times US prices

Fountain 27 Fever most of the boats are with singel engine
Same with Formula 27 Fastech

Even though the hull on the Crestliner are older it is only 26 feet and weight without engines are 4000 pounds

And the favt that I am buying the boat without engines and drives are also the reason that i consider a singel engine.

I understand your concern of equipment, fuel, nd maintenance cost but I think the overall project does not make sense regarding the refurb cost and performance changes being considered. I'm not an engineer but my $.02
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Old 10-24-2007, 08:04 AM
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If it was me I'd be looking for a pair of nice, fuel sipping diesels in the 250 to 300 HP range. If you plan on keeping the boat for a long time the increased efficiency and reliability will pretty much pay for them. Just my $.02 worth........
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Old 10-24-2007, 08:37 AM
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Monoco20, given the situation it may not be such a bad idea. I would expect a little loss in performance. You may also need to change stringer configuration. Good luck.
Jim
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