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| Prop on the boat right now is a 12 1/4X15, spare prop is 11 3/4X17. Going top to bottom with the mounting holes the motor is in the top hole. The trim adjustment rod(or whatever you call it) is in the hole closest to the transom and the trim tab/plate(?) right above the prop looks to be just slightly above the bottom of the V on the hull. Will the 17 pitch get me more speed or should I stay with the 15 pitch? Still haven't hooked it to a tach yet. Thanks.
Hi Kevin!!
I happen to run the 50 hp Johnson and will share a bit of what I know.
With your trim pin closest to the transom, your boat will plow quite a bit. I would bet you could move it out to the third hole away from the transom, which will get the boat out of the water quite a bit more. Your bow will rise a bit higher out of the water when you take off, but as soon as the boat planes out, it will come down. You will definitely gain some RPM's here....I'd venture to say somewhere in the region of 150 or so.
Also, when you move the motor up 2 holes, your stock props will do poorly on cornering. A switch to a better prop will be in order. I have not tried Hustler props, so I cannot comment there, but also check out solas props (www.solas.com) they have a line called the Alcup 3, which has a larger exhaust opening, creating more hp, and the possibility of going to a larger pitched prop.
I was able to go from a 12-1/4 x 15 stock aluminum to a 12 x 17 solas prop. I got better bite, and quite a bit faster...from about 31 to 35.
No doubt your rig can be made more efficient...you will like the changes if you make them.
Steve | |
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