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Old 08-18-2019, 04:56 AM   #1
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Default Silly question... but got to ask

We are sea trialing a 2000 Maxum 4100 SCA with twin cummins. Our curiousty has us asking, what should we expect of the cummins versus fuel burn of a 454 Mercruiser??? :
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Old 08-18-2019, 11:50 AM   #2
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The diesel will burn less fuel, however this is true only when comparing them in the same hull or at least similar size.
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Old 08-18-2019, 03:39 PM   #3
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Thanks Mike, comparing to our Carver 355, similiar in many ways but the 4100 has a 10,000 pound "advantage".
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Old 08-19-2019, 03:19 PM   #4
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Don,

Cruising the ICW here in Florida (Same boat, two Cummings 6BTA 5.9 M3, 330HR)... usually running around 9 kts at just over 2,000RPM (not on plane) with routine slow/no wake/manatee/bridges zones. Average just under 8kts and burn at ~1.26 gal/nm or 9.72 gal/hr.
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Old 08-24-2019, 06:25 PM   #5
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Thanks Paul,
Our old Carver 355 with 454's sucked 13 gph at 12kts- calm seas. Our 4100 of course is displacing a tad more. Any optimum open water consumption rates would be equally useful if you can share.

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Old 08-25-2019, 03:45 PM   #6
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Sorry Don, just not enough open water runs at that speed to make a good average for you.
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