Silly question... but got to ask

[Maxum Don]

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??? :

[mmwjr]

The diesel will burn less fuel, however this is true only when comparing them in the same hull or at least similar size.

[Maxum Don]

Thanks Mike, comparing to our Carver 355, similiar in many ways but the 4100 has a 10,000 pound "advantage".

[PJHoffnet]

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.

[Maxum Don]

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.

Don

[PJHoffnet]

Sorry Don, just not enough open water runs at that speed to make a good average for you.