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General Jet Boat Discussions
Tunnel Hull help
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<blockquote data-quote="JL8Jeff" data-source="post: 431617" data-attributes="member: 12995"><p>With my Lowe 1652 jet tunnel and Merc 60/45 I was getting porpoising past 1/2 throttle. I put some extra weight up front and it helped but it didn't go away. I put on the transom wedges and that got rid of it. I have to run trimmed all the way in, if I start to trim up a little, I get spray back. I moved my console forward and put the battery under the console and it seems to run great this way. You tunnel looks a little odd, was it a prop tunnel that somebody modified for a jet? It also looks like your motor needs to be moved down a little, I run with the foot just under the top of the tunnel. I wonder if your pods are grabbing more now if your noes is up because of less weight. You might want to try the wedges to get a little more tucked in.</p></blockquote><p></p>
[QUOTE="JL8Jeff, post: 431617, member: 12995"] With my Lowe 1652 jet tunnel and Merc 60/45 I was getting porpoising past 1/2 throttle. I put some extra weight up front and it helped but it didn't go away. I put on the transom wedges and that got rid of it. I have to run trimmed all the way in, if I start to trim up a little, I get spray back. I moved my console forward and put the battery under the console and it seems to run great this way. You tunnel looks a little odd, was it a prop tunnel that somebody modified for a jet? It also looks like your motor needs to be moved down a little, I run with the foot just under the top of the tunnel. I wonder if your pods are grabbing more now if your noes is up because of less weight. You might want to try the wedges to get a little more tucked in. [/QUOTE]
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