Motor rigged and now I am not so patently waiting for some decent weather to seatrial. The mechanic ran it for a short 15 minutes and reported 51 mph at 5400 rpm at wot burning 26 gph. The numbers should be better as he ran with the jack plate all the way down and I had them bolt the motor low enough on the plate so that the ventilation plate was even with the bottom of the boat. With the six inch setback I should be able to run the plate up at least two inches before it even starts to cavitate. Should pick up a couple hundred rpm along with a few mph. He didn't check fuel burn at cruise but 2 mpg at wot is pretty damn good for not even being trimmed out on the plate. Will 3mpg at cruise be possible as I had hoped? This is all with a 19p 3 blade Merc Mirage Plus, two people and half tank of fuel. No ice or beer on boat. I will correct that unloaded condition when I seatrial. He reports prop chatter is quite loud at idle speed in gear so a Yami SDS prop will be forthcoming. Will update with final thoughts and numbers after weather allows me to get it dialed in.
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02-06-2014, 10:38 AM
Update
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