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Prop Tunnel Hull / Tilt Question
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<blockquote data-quote="JL8Jeff" data-source="post: 383826" data-attributes="member: 12995"><p>I have a jet tunnel with a 60/45 jet and I had to put in the transom wedges to get the motor tucked in as far as possible to get rid of porpoising. The boat also porpoised pretty bad with the 40 hp prop motor that was on it when I first got it. I'm thinking the tunnel causes a loss of bouyancy which caused more porpoising, but I'm not sure. I had to adjust the motor height several times and finally settle on the wedges along with some extra weight up front. With a prop motor, you could probably get away with a fin if needed. But you'll probably need to try out several settings to see what works best.</p></blockquote><p></p>
[QUOTE="JL8Jeff, post: 383826, member: 12995"] I have a jet tunnel with a 60/45 jet and I had to put in the transom wedges to get the motor tucked in as far as possible to get rid of porpoising. The boat also porpoised pretty bad with the 40 hp prop motor that was on it when I first got it. I'm thinking the tunnel causes a loss of bouyancy which caused more porpoising, but I'm not sure. I had to adjust the motor height several times and finally settle on the wedges along with some extra weight up front. With a prop motor, you could probably get away with a fin if needed. But you'll probably need to try out several settings to see what works best. [/QUOTE]
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