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New Cummins/Mercruiser Project

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Old 09-26-2008, 02:02 AM
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Default New Cummins/Mercruiser Project

New development with Eliminator...500+hp with 1000# of torque...







Motors are going into this 43' Eagle...


Target delivery is the Ft Lauderdale Boat Show...
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Old 09-26-2008, 08:58 AM
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Looks like a great design...also looks like a modified 24v.
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Old 09-26-2008, 09:00 AM
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I think it will a great start. The 43 Scarab/Eliminator is a good platform. What top end number (80mph) are you guys looking for.
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Old 09-26-2008, 10:15 AM
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I wonder what the fuel burn is at a steady 60 mph cruise?
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Old 09-26-2008, 10:19 AM
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ASD's or #6's?

Can you stagger a diesel boat......never seen it done.
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Old 09-26-2008, 10:57 AM
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Originally Posted by PatriYacht View Post
I wonder what the fuel burn is at a steady 60 mph cruise?
If the engine is 500hp the fuel burn rate is easy to calculate. It takes 1 GPH of diesel fuel for every 20hp. So 500/20= 25 GPH per engine at WOT. I would take a guess that it would burn about 20 GPH per engine @ 60 mph.
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Old 09-26-2008, 11:21 AM
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how does that compare to say, a 525 at those speeds?
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Old 09-26-2008, 12:47 PM
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Originally Posted by waterboy222 View Post
how does that compare to say, a 525 at those speeds?
Not sure, but my 6.2 in the sea ray will burn about 25-36gph at wot, I would venture to say the 525 would be 50-60gph
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Old 09-26-2008, 01:09 PM
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60mph:
Diesels @ 40gph
525s??? will they even push that 43 @ 60mph cruise? @ 60gph? (figuring 1g/mile burn rate, which may be optimistic.)
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Old 09-26-2008, 02:45 PM
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Fuel consumption averages about .36-.38 lbs per Hp hour. The GPH is based on how many horsepower your using at any given time.

The 25 GPH is close, it most likely will be as high as 28 (dyno) but that "1 GPH of diesel fuel for every 20hp" is probably more representative of what you will see in the actual boat.

Maritime_Eng - that's a very good quick little gauge of fuel consumption, thank you!
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