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Old 04-26-2012, 06:00 AM
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EJ OJPROP EJ OJPROP is online now
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Join Date: Mar 2005
Location: East Tennessee
Posts: 724
Originally Posted by Kyle View Post
Sorry for the thread jack

Eric, I got a '93 ps190 and I'm turning a 13.7 x 17.5 four blade at 5100 ish rpm at 47 mph on gps stargazer. Can I turn a 19.5 or what do you recommend.
Higher pitch will decrease the low end as well as drop RPM relative to speed, you may see a slight increase in top end, 1-2 MPH. I would not suggest a 19.5 with a 5.7 engine as it may not allow the engine to see max RPM.
Eric Johnson
Johnson Propeller Co., Inc

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