I usually run my 6-71Ti's at 11-1200 rpms. I am averaging 7 gallons an hour with a 15kw genny running at about 35-45% load. My temps are right in range and have never had any glazing issues. no smoke, nothing. At this ,I am running 8 kts and getting about 1.3 mpg. The boat is a 48 Californian weighing in at 47,000 lbs wet.
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