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Old 12-26-2010, 09:59 PM
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Originally Posted by JIMKID Motorsports
60 mph is about 3000 rpm
Efficient and a decent cruise speed without being too hard on the equipment, smart, I like it.
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Old 12-26-2010, 10:51 PM
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I remember a while back powerboat mag tested a 26? sportboat with a hopped up duramax diesel that was getting 6+mph at cruise speeds. Think it was an Eliminator but dont remember specifics .

My boat I have never even done the math, it would probably depress me,..
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Old 03-28-2011, 12:27 PM
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one gall'n two gall'n three gall'n gone!
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Old 03-28-2011, 12:39 PM
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The gas is the cheap part. I has a set of 600's that pegged the monitors at WOT and they stopped at 65/gal/hr each
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Old 03-28-2011, 01:39 PM
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we checked the other day we get 2.8 mpg total both motors at 55mph 3000rpm awsome
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Old 03-29-2011, 10:23 AM
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Originally Posted by JIMKID Motorsports
we checked the other day we get 2.8 mpg total both motors at 55mph 3000rpm awsome
It is indeed.

For reference what is the tab on those engines fully marinized like you have them in the boat?


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Old 03-29-2011, 10:56 AM
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i have a 91 29 fever with twin 454 anybody have any past experience or data on this
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Old 03-29-2011, 02:22 PM
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there about 30k each not bad
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Old 03-29-2011, 06:42 PM
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Originally Posted by JIMKID Motorsports
there about 30k each not bad
for that price you could get some yanmar diesels and probably have similar performance and even better mpg.
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Old 03-29-2011, 07:58 PM
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Originally Posted by pstorti
for that price you could get some yanmar diesels and probably have similar performance and even better mpg.
Checked the price of diesel lately ? Not to mention the price of yanmar's .
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