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Old 07-19-2011, 04:23 PM   #2
Tom.B
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City: Cary, NC
Vessel Name: Skinny Dippin'
Vessel Model: Navigator 4200 Classic
Join Date: Jul 2009
Posts: 5,841
RE: Fuel Economy Question

TBH... I think your splitting hairs. There are a lot of things that affect your burn rate. And while over the entire distance of The Great Circle even a small difference in fuel burn can mean hundreds of dollars in your total fuel bill, you won't find better fuel economy than a single-screw trawler. Either of those motors will run for a lifetime with proper care and only sip fuel (my 130hp Perkins only burns 1.666g/hr.). The difference of just 100 rpm's over that distance could yield just about the same results between the two motors. You would be better served to spend your time learning what you need to know to pick the best cared for diesel out there. (and it I can inject my own personal opinion... a normally aspirated motor would be a better idea. It's simple, has fewer things to break, and turbo motors have had a little bit more stress and heat applied over their life. And you know the saying that a bulb that burn twice as bright... But that is just my own opinion.)

Tom-
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