Quote:
Originally Posted by steplift20
W.O.T is 5800 rpms
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This sounds like part of your problem. If that is a 2.0L 5800 isn't horrible, but 5500-5600 would be ALOT better. And if you have a 2.5L you need to get the RPM's down to around 5300-5500. Around 5600 the porting in a 150 MERC is pretty well out of air, they just don't run much above 5600 stock. I'm guessing since you say you have a 150, and a 17 pitch you have a 2.0L though. Try a STAINLESS prop in a 17-19 pitch range. If your after cruise and economy go with a large diameter or a 4 blade, and if your after top end go with a 14-14 1/4" 3 blade stainless.
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