Newb with a Sanger, ride help!
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Newb with a Sanger, ride help!

  1. #1
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    Default Newb with a Sanger, ride help!

    I have recently bought a 76 Sanger Super Jet. It has a BBF,Berk G, Place diverter, and factory ride plate. It porpoises way bad at around 4k. It came with two plastic wedges. I believe they are 2 deg each. The studs in the bowl would indicate that they should be set with the thick end on the top. The guy I bought it from, said that the previous owner had it set up at a shop. I contacted him, and he loved the boat and had no problems. So I think I should be able to achieve a decent ride with what I have. One other thing I discovered was that the left motor mount is really bad. So I am currently fixing that. It has a three point setup and I don't know how bad it would effect the ride if at all. I have had allot of good input from friends, but would like to hear from someone familiar with the Super Jet hull. Thanks for any info anyone could give!

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  3. #2
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    Quote Originally Posted by patchman View Post
    I have recently bought a 76 Sanger Super Jet. It has a BBF,Berk G, Place diverter, and factory ride plate. It porpoises way bad at around 4k. It came with two plastic wedges. I believe they are 2 deg each. The studs in the bowl would indicate that they should be set with the thick end on the top. The guy I bought it from, said that the previous owner had it set up at a shop. I contacted him, and he loved the boat and had no problems. So I think I should be able to achieve a decent ride with what I have. One other thing I discovered was that the left motor mount is really bad. So I am currently fixing that. It has a three point setup and I don't know how bad it would effect the ride if at all. I have had allot of good input from friends, but would like to hear from someone familiar with the Super Jet hull. Thanks for any info anyone could give!
    I had the same boat and set-up and had a lot of fun with that Sanger. It also had the same problem mostly at top speed and when I had the place diverter up. I tried different things like longer ride plate, droop snoot, and cav plates. Still had the porpoise. This was after I added more HP to the 460. The ass also rode deep in the water. A shoe and ride plate would probably help getting the ass up.
    Take a 6' to 8' straight edge and see how straight the bottom is from the transom forward. A lot of boats will have hook which is when you can see daylight under the straignt edge. My Sanger had the opposite which was rocker which I assumed was the cause of the porpoise. The bottom needs to be straight and IMO will probably take care of porpoise.

    I loved that boat and had many years of injoyment.
    Welcome to the Forum!
    Last edited by cp562; 08-26-2011 at 12:30 PM.

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    Thanks for the welcome and info. It also has a straight snoot. I believe the wedges where down to lift the stearn. I will try them down, and I will adjust the ride plate down. I haven't been able to detect a hook in the bottom, but I haven't looked into it very hard either. The motor has aluminum heads and a tunnel ram, I figured that has to cut the weight down compared to the factory set up. But then again these boats may have only ran 50 mph from the factory. I would really like to fix it up again, and I don't expect it to run 100mph either.

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  6. #4
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    Hell Patch ... you're never gonna catch a Kona that way ..... but since you're gonna do some plate adj. first might I suggest checking the angle of it now so you can put it back? Yeah you can make it quit porposing with plate but it slows you down alot (and makes the ass end squirrely as hell) ... and just a degree or two can make alot of difference
    It may be OLD ,it may be Slow ... but at least it's MOBILE !!!

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    Quote Originally Posted by patchman View Post
    Thanks for the welcome and info. It also has a straight snoot. I believe the wedges where down to lift the stearn. I will try them down, and I will adjust the ride plate down. I haven't been able to detect a hook in the bottom, but I haven't looked into it very hard either. The motor has aluminum heads and a tunnel ram, I figured that has to cut the weight down compared to the factory set up. But then again these boats may have only ran 50 mph from the factory. I would really like to fix it up again, and I don't expect it to run 100mph either.
    Like I said I had rocker not hook in the bottom. The straight snoot with a wedge is something I didn't try. Sounds like you have good power. My best was was 73 MPH with about 475HP, B+ impeller. As you make changes, make one change at a time so you know what is working. Also, try bring the diverter down a little from your best speed angle to see if that stops the porpoise.

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    I'm going to put it back where it was, set-up wise. The other thing I need to consider is that when I run, I usually have a couple of people in the boat. I need to make adjustments and get it set-up solo. It may be fine, I just don't get to run it by myself. Maybe Sangers don't like passengers!

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