7.2 lbs weight in a US gallon of #2 diesel. A Deere 8320 made 18.93 HP-hr-gal at max rated. That would be 0.380 lbs fuel per hr per HP. The 720/730 diesels were ahead of their time making 1799HP per gallon per hour or 0.400 lbs per HP per hour. Best engine to date is a turbo two stroke marine diesel at 0.260 lbs per hp per hr.That's 27.7HP per gallon per hr.Over 50% efficiency too. IF............you could wring 100% efficiency from a gallon of #2 at 129,500 btu per gallon.An "engine" would make 50.9 HP per gallon per hour. So 37.2% fuel efficiency on a farm diesel while running all those accessory loads and emissions equipment ain't shabby.
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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