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View Full Version : 2005 3.0 Merc 225



clayton bigsby
05-14-2007, 09:26 PM
Is there anyway of turning this motor more than 5750? I would like to get in the 6000 range if possbile.

trashy
05-15-2007, 05:40 AM
I may be mistaken, but it seems like I have read that motor makes it's best horsepower/speed right around 5700 - 5800 rpm, and drops off after that.