Trim Tab Question
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Trim Tab Question

  1. #1
    79 Sanger Picklefork Tittyman's Avatar
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    Default Trim Tab Question

    My neighbor has a jet boat with the typical porpoising problem. He only is a recreational boater. He does not want to work on the bottom of his boat or spend the money on a place diverter. Boat is all stock 75 Sanger Super Jet with a stock olds. Can he just install a set of cast trim tabs, the kind that are about 5x12 inches with the nut and bolt on each side, set it one time and be good to go...also where can he get that type of trim tab..
    "Bill, if your gonna ride my ass that hard, at least you could pull my hair"....Hillary Clinton

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  3. #2
    79 Sanger Picklefork Tittyman's Avatar
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    Default Anybody..Anybody

    Buehler..Buehler..Buehler..anybody know where he can get that type of trim tab and will they work...thanks..
    "Bill, if your gonna ride my ass that hard, at least you could pull my hair"....Hillary Clinton

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    Senior Member LuckyDaze's Avatar
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    I know he doesn't want to drop the dough on the diverter but that would be the best way to go. Have you called Tom at JPB about the trim tabs? He has tons of spare old parts layin around. Chances are he's got a pair.

    As for whether or not the tabs would solve his problem, its one of those things you gotta try and see.

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  6. #4
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    LuckyDaze hit it on the head. If he has a split bowl he could also add a wedge (pointing the nozzle more down).

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    how about trying a ride plate?...that might work...just my .02 cents

    FastRat

  8. #6
    79 Sanger Picklefork Tittyman's Avatar
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    No split bowl, does have a small stock ride plate..
    "Bill, if your gonna ride my ass that hard, at least you could pull my hair"....Hillary Clinton

  9. #7
    "Try it Now!" Tahiti Boss21's Avatar
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    before i had my diverter, i adjusted the ride plate down on my 12je ( big cruiser boat) and it helped out alot. after the diverter, i adjusted the plate back to where it was stock.
    1992 Eliminator Daytona 21'

  10. #8
    Senior Member GT Jets's Avatar
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    Quote Originally Posted by Tahiti Boss21 View Post
    before i had my diverter, i adjusted the ride plate down on my 12je ( big cruiser boat) and it helped out alot. after the diverter, i adjusted the plate back to where it was stock.

    X2, add about 1/4" down on the ride plate at a time, will probably solve itself (and its a "freebie")...

    GT
    GT


    Quote Originally Posted by Quickjet View Post
    Put a 300 on the back of it, Flywheel it and a nosecone. $15,000 later you'll have a 65 mph pile of shit......

  11. #9
    Senior Member Mohavekid's Avatar
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    The stock ride plate is probably noit long enough to accomplish what he's looking for on that Sanger.

    Sanger jet's were heavily weight biased to the rear, leading to the mid range porpoise. Trim tabs will help, adding a diverter will help even more.

  12. #10
    Senior Member jetboatperformance's Avatar
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    Default porpoise

    Titty , tell him welcome to the "porpoising Sanger club" , although admittedly my boat has intentionally built in rocker and is somewhat different than his ,first trip to the lake the boat with initial set up was litterally "undriveble" We were back on the trailer in ten minutes , last week GTjets and I hot lapped it after a half dozen "incremental" changes to the hardware etc. I will say that we have made progress but its been challenging Tom

  13. #11
    cj812 ralph brunt's Avatar
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    Quote Originally Posted by jetboatperformance View Post
    I will say that we have made progress but its been challenging Tom
    but we all know you love a good challenge

  14. #12
    Senior Member jetboatperformance's Avatar
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    Quote Originally Posted by ralph brunt View Post
    but we all know you love a good challenge
    I'm waitin to see you come drive that bad boy @ 85 around a bouy

  15. #13
    Senior Member GT Jets's Avatar
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    Quote Originally Posted by jetboatperformance View Post
    I'm waitin to see you come drive that bad boy @ 85 around a bouy
    Hey Tom, he dont have to go around, just "bunny hop" those bad boys.

    Hey Ralph just remember to keep that free hand in the air and push that hat on hard, this is going to be the longest 8-seconds of your life!

    Just take comfort in knowing there will be a lot of rodeo clowns around to help you out

    GT
    Last edited by GT Jets; 10-11-2008 at 02:36 PM.
    GT


    Quote Originally Posted by Quickjet View Post
    Put a 300 on the back of it, Flywheel it and a nosecone. $15,000 later you'll have a 65 mph pile of shit......

  16. #14
    Senior Member GT Jets's Avatar
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    Quote Originally Posted by Mohavekid View Post
    The stock ride plate is probably noit long enough to accomplish what he's looking for on that Sanger.

    Sanger jet's were heavily weight biased to the rear, leading to the mid range porpoise. Trim tabs will help, adding a diverter will help even more.
    You may be correct, but this is what I call a free mod that may do the trick, it sounded to me he is the frugal type (not having the funds right now to blow on a Diverter), I can soooo totally relate!

    GT
    GT


    Quote Originally Posted by Quickjet View Post
    Put a 300 on the back of it, Flywheel it and a nosecone. $15,000 later you'll have a 65 mph pile of shit......

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