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To prop or not to prop (or motor)
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<blockquote data-quote="boatlose" data-source="post: 457254" data-attributes="member: 23511"><p>Hello, all. I've been doing some research but wanted to get some possibly updated thoughts/advice from you guys.</p><p></p><p>I have a welded 15' Gregor semi-V with a 70's Johnson 15hp 2-stroke tiller. Rebuilt & reinforced transom.</p><p></p><p>The boat is loaded down pretty well with gear and 70 lbs in decking, big fishing buddy, etc....and goes about 15 mph according to GPS.</p><p></p><p>Stock 9.25" x 10" prop. Max RPM the motor hits on the water is 5500 RPM, I believe they are suppose to hit a max of 6500 RPM.</p><p></p><p>The question: Should I prop down a couple inches in pitch to 9.25" x 8", or just spend my resources and get a 25hp motor? Is the $70 for a new prop going to make me happy? Or is that just too little motor for that boat & loadout? Thanks in advance!</p><p></p><p>Bonus: I'm also pondering the $3k for a new 20hp EFI Tohatsu, but working on older boat motors doesn't scare me.</p></blockquote><p></p>
[QUOTE="boatlose, post: 457254, member: 23511"] Hello, all. I've been doing some research but wanted to get some possibly updated thoughts/advice from you guys. I have a welded 15' Gregor semi-V with a 70's Johnson 15hp 2-stroke tiller. Rebuilt & reinforced transom. The boat is loaded down pretty well with gear and 70 lbs in decking, big fishing buddy, etc....and goes about 15 mph according to GPS. Stock 9.25" x 10" prop. Max RPM the motor hits on the water is 5500 RPM, I believe they are suppose to hit a max of 6500 RPM. The question: Should I prop down a couple inches in pitch to 9.25" x 8", or just spend my resources and get a 25hp motor? Is the $70 for a new prop going to make me happy? Or is that just too little motor for that boat & loadout? Thanks in advance! Bonus: I'm also pondering the $3k for a new 20hp EFI Tohatsu, but working on older boat motors doesn't scare me. [/QUOTE]
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To prop or not to prop (or motor)
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