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Old 18 April 2011, 11:46   #1
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Country: Canada
Town: Vancouver, BC Canada
Boat name: Black Ops
Make: Zodiac Hurricane 733
Length: 7m +
Engine: OceanPro 150hp x 2
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7m fuel burn

I'm considering a repower, I've got twin 150 two strokes (carbed) and burn something like 2mpg (2l/mile in your mixed metric format)

Can those with outboards on 7m ribs please post some fuel burn numbers with their respective speeds? I'm finding very little data that would support spending the dosh on a new engine. The equivalent hard boat figures posted on various manufacturer websites seem to indicate 3mpg (1.5l/mile) as an average using a new technology large single (4 stroke or dfi).

I'm of the feeling that close to 4mpg or your 1l/mile could justify the expense, yet have only seen one boat achieve that in a manufacturer's performance specs. I am however, hoping that rib numbers might be closer to that figure.

Any real world figures would be appreciated.

Thanks
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Old 18 April 2011, 11:54   #2
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Do you guys use Imperial or US gallons? I forget, but your beers seemed the right size when last I drank them...

and again, are those Nautical miles?
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Old 18 April 2011, 12:14   #3
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Length: 7m +
Engine: OceanPro 150hp x 2
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Quote:
Originally Posted by willk View Post
Do you guys use Imperial or US gallons? I forget, but your beers seemed the right size when last I drank them...

and again, are those Nautical miles?
The manufacturers use US gallons and statute miles for the US. There are 3.8l in a US gallon vs. 4.5l in the imperial. I lean toward the US gallon just to keep comparisons simpler but am happy to convert from any format.
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