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Old 12-04-2009, 12:12 AM
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Default Single Engine Twin Drive

Geared Up System
Anybody know anything about there product?

I was thinking about buy a 36' cigarette with some burnt out engines and replacing them with a single 480hp Yanmar diesel with twin bravo ones. Splitting the torque, so it should have no problems for the bravos. Seems like a simple inexpensive and fuel efficient system. I know the 480 is much more efficient than twin 315's. And I haven't heard great things about he bmax diesel drives.

I remember reading somewhere about a chain drive system in some of the typhoon boats. Anyone know who was making that?

Is there anything bad about having twin drives connected to a single engine?
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Old 12-04-2009, 05:24 AM
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Mastry Engine Center in St. Petersburg, FL has the setup you're looking for and is a Yanmar distributorship, 727-521-4661
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Old 12-04-2009, 08:30 AM
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There was an article in Powerboat a while back about a twin drive single engine setup. Lots of power loss, lots of drag. I think I would rather have it the other way around, two engines and one very beefy drive. For a diesel not real speed demon it may be good to split the power.
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Old 12-04-2009, 10:12 AM
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IMCO made a gearbox for a two drive/one engine setup a few years ago. It was a sharp looking piece. The only problem I see is that the boat will be a slug with one 480. I would think it would work good if you put more power in it.
There are quite a few monetary benefits to a single engine, however, if you have a problem, you are coming in on the end of a rope. It sure is nice to have that backup engine.
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Old 12-04-2009, 10:16 AM
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There was a 35 Nordic with something like a single 1200hp and the Imco splitter. I think the re were problems with the gear box.

480hp in a 36 Cig???? You'd be lucky to hit 50mph.
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Old 12-04-2009, 04:40 PM
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Wouldn't it simply be better to mate the 480 to a SSM V drive. Costs less, and fewer parts to break. A used SSMV, is quite reasonable.




Darrell.
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Old 12-04-2009, 05:01 PM
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Waaaaayyy underpowered.
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Want your ECU tuned right?? Call Mark at Precision www.pmefi.com
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Old 12-04-2009, 06:54 PM
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Originally Posted by fpjeepy05
Geared Up System
Anybody know anything about there product?

I was thinking about buy a 36' cigarette with some burnt out engines and replacing them with a single 480hp Yanmar diesel with twin bravo ones. Splitting the torque, so it should have no problems for the bravos. Seems like a simple inexpensive and fuel efficient system. I know the 480 is much more efficient than twin 315's. And I haven't heard great things about he bmax diesel drives.

I remember reading somewhere about a chain drive system in some of the typhoon boats. Anyone know who was making that?

Is there anything bad about having twin drives connected to a single engine?
Probably be a heck of a lot cheaper and easier to just throw a couple stock big blocks in it. You will never be able to resell it with a single.
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Old 12-04-2009, 09:26 PM
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Originally Posted by DMOORE
Wouldn't it simply be better to mate the 480 to a SSM V drive. Costs less, and fewer parts to break. A used SSMV, is quite reasonable.




Darrell.
and still won't do 50 mph. Maybe a seatec diesel and a single #5 or an Arny.
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Old 12-05-2009, 08:17 AM
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I agree, going to be a trawler version of a perf boat, use 2 if you do it...
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