Quote:
Blue Heron: 3000 rpm for best fuel economy? What tests were you looking at?
|
Connor,
Go to
Mercruiser Engine Test and pick any of the boats under 30' with a 350 Mag MPI or a 377 Mag. Scroll down til you see the graph that shows mph, gph, and mpg. The graphs only have data points at 1K, 2K, 3K, 4K and WOT rpm, so maybe I'm reading too much into it. But just about all of them hit the sweet spot for economy at idle and then again at about 3000rpm. Your Volvo could also be programed with different fuel or timing curves. If you have real world measurements, they've got to be more accurate than these tests for your application
Dave