For what it’s worth I have a 2015 290 with twins and I have experienced this in the past. I will say the boat drives beautifully with drives all the way down all the time, but I feel there was a bit of extra drag and probably sacrificing a bit of fuel efficiency. I could very slightly trim up (maybe 10%) without issues but didn’t feel I was getting full benefit but it drove fine as well. If I went a little higher (20-30%) it would porpoise and not drove well. I went out with a friend one day and started playing around and went to 50-60% and it drove fantastic. It was much higher than I thought was logical but it literally floated on water and cut through everything with minimal slam on the hull even in choppy conditions. Don’t be afraid to play around - we were at about 3200 RPM/30ish MPH in this case which is a great cruising speed for the boat. Hope this helps a little.
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10-04-2019, 07:13 AM
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