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Wel I finally spun an upper bearing on my 88' yam 40hp etlg. Like always looking to go a little faster. Looking to put it on a 14' novuraina rib. So I ask the question weight vs speed, hp vs speed. A friend put a 80 on same boat and only gained a few mph top end. So there must be a calculation to find optimum speed. Opinions welcome
Go with the biggest it will hold. You will never regret the increased torque as long as you don't go over its weight capability.
Joe
Ready to pull the trigger on a merc 60 race 15 mid it's only 8# more than yam 50
Now I see merc makes a 60 formula.Any one know the differance 7between them?
I have a new merc 60R if you r looking
Where you at ? How much ?
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