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What will a 48Ft Fountain Express cruiser top out at?

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Old 05-24-2010, 08:55 PM
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A friend picked up a 2006 48Ft Fountain Express Cruiser.
He is wondering what this should do.
It has triple Yanmar Diesels 480HP with Arneson drives.
"Berth Control"?
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Old 05-24-2010, 09:28 PM
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Triple YANMAR 440's - 60MPH

Triple Cummins 480's - 63MPH

Triple Mercury 525EFI - 68MPH

Triple Mercury 700's - 90MPH

Fuel and weight of passengers does not really effect top speed of boat.

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whats the fuel consumption of the 525 package versus the Cummins or Yanmar?
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Old 05-24-2010, 09:55 PM
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ALOT, we have only built 2 with 525's, a 2004 & 2005, both customers still own them and love them but they use about 3X as much fuel as diesels. We ran a new 480 Cummins boat this weekend with 19 people on it and 300 gallons of fuel. We were at 1.4 @ 48MPH, topped out @ 60 with 19 adults and 300 gallons of fuel.

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whats the fuel consumption of the 525 package versus the Cummins or Yanmar?
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Old 05-24-2010, 10:37 PM
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ALOT, we have only built 2 with 525's, a 2004 & 2005, both customers still own them and love them but they use about 3X as much fuel as diesels. We ran a new 480 Cummins boat this weekend with 19 people on it and 300 gallons of fuel. We were at 1.4 @ 48MPH, topped out @ 60 with 19 adults and 300 gallons of fuel.
wow Scott..what do you like better..the Cummins or Yanmar package....thanks Jeff
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Old 05-25-2010, 12:25 AM
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ALOT, we have only built 2 with 525's, a 2004 & 2005, both customers still own them and love them but they use about 3X as much fuel as diesels. We ran a new 480 Cummins boat this weekend with 19 people on it and 300 gallons of fuel. We were at 1.4 @ 48MPH, topped out @ 60 with 19 adults and 300 gallons of fuel.
Wow thats impressive.
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Old 05-25-2010, 01:58 PM
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Default Cummins & YANMAR are both good

Both good motors. Cummins are heavier and weight down swim platform which has been changed and raised on 2011's. Nice thing about Cummins, GREAT customer service and very little smoke and noise.

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wow Scott..what do you like better..the Cummins or Yanmar package....thanks Jeff
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Old 05-25-2010, 02:06 PM
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Both good motors. Cummins are heavier and weight down swim platform which has been changed and raised on 2011's. Nice thing about Cummins, GREAT customer service and very little smoke and noise.
What is the actual speed difference between the Cummins and Yanmars?
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Old 05-25-2010, 02:44 PM
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I think you'd top out at about 2-3 college-age fat chicks...maybe a chain-smoking cougar or two...possibly a handful of bored pole-dancers.
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Old 05-25-2010, 10:34 PM
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Default They're both good and about same speed.

There really is not. We have learned so much with props and set up that the Cummins boats run the same speeds as the YANMARS and we also have hard tops now. I think the YANMAR accelerate a tad better but the Cummins are VERY nice and we have not had any mechanical issues with them.

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What is the actual speed difference between the Cummins and Yanmars?
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Old 05-26-2010, 02:49 AM
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formula 400s s with 525s deoes 60
enough said
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