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  1. #1
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    Another XB21 jackplate option

    I would like to introduce the HydroStar!! This design was a joint effort between Fastbass Marine and Hydro Dynamics. I recently had a situation come up that left me in a bind for a customer install and I had to quickly come up with a solution. The ol gears started squeaking and slowly turning and this is what we came up with....



    The plates are available exclusively through Fastbass Marine and can be designed for any hull.

    This one in particular has the Allison transom bolt pattern, 25 degree rise for added pre-jack (less plate height at WOT), and most importantly eliminates the extra bolt connections by stacking spacers/plates.
    Fastbass Marine LLC
    We specialize in NEW and USED ALLISON BOATS, Blazer Boats, Platinum Mercury Marine Repower Center, AquaTraction Flooring, and custom marine electronic installations on beautiful Kentucky and Barkley Lakes.

    2022 Allison XB-21 BasSport Pro Elite
    2022 Mercury 450R

    2012 Bullet 21ss
    2005 Mercury 300X

    https://youtu.be/FOnAGNWOgZ0

  2. Member
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    #2
    Looks good.

  3. Member fishnfireman's Avatar
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    #3

    I was going to call Detwiller and see if they would send me just the side plates that attach to the transom...But make them bigger and also with the Allison 6 bolt pattern..
    I'm looking at adding around 2" more setback.. If they or you could make those side plates big enough to get my motor back to the 10-10.5 range and do away with any spacer plates it would be great.. The side plates on this one are 4.5" just wonder if it would be possible to lengthen them to around 9' ?
    From your pictures it looks like you make the side plates to whatever size or angle desired then attach the angle pieces for the transom.
    Attached Images Attached Images

  4. Member
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    #4
    Hope it works as well as it looks. It’s headed to my house

  5. Member
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    #5
    Looks like you have a homer on hand Tim. Congratulations on a great plate.

  6. Member
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    #6
    Help me understand why you want a plate that the surfaces are not parallel to each other as these look skewed?
    To keep you from over-trimming at speed?

  7. Member
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    #7
    I asked and they said it is optical illusion. Although I normally do run wedges??

  8. BBC SPONSOR
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    #8
    The plate is square, its the angle of the picture
    Fastbass Marine LLC
    We specialize in NEW and USED ALLISON BOATS, Blazer Boats, Platinum Mercury Marine Repower Center, AquaTraction Flooring, and custom marine electronic installations on beautiful Kentucky and Barkley Lakes.

    2022 Allison XB-21 BasSport Pro Elite
    2022 Mercury 450R

    2012 Bullet 21ss
    2005 Mercury 300X

    https://youtu.be/FOnAGNWOgZ0

  9. Member
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    #9
    Had my ole eyes guessing!

  10. Member
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    #10
    Mine too I questioned as soon as I saw photo. But I do run wedges

  11. Member V6MERC's Avatar
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    Potosi, MO
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    #11
    Looks awesome, Tim!

  12. Member
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    Living the good life on Lake Hartwell, Fair Play, SC
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    #12
    good ole American ingenuity!!!
    2013 Allison XB-21 BasSport Pro
    2023 Mercury Racing 300R
    Bravo FS 30P
    ProMax 30P

  13. Member
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    Danbury, CT
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    #13
    Nathan's plate is special!
    Allison XB21 Prosport Mercury Racing 250XS with a 1.75 Sporty

  14. Member tritontr21's Avatar
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    Mt. Pleasant, Tx
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    #14
    Nathan is SPECIAL! lol
    Jay McDaniel
    2003 Allison XB21 BasSport Elite 2+2
    2019 Mercury Racing 300R

  15. Member
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    #15
    Quote Originally Posted by tritontr21 View Post
    Nathan is SPECIAL! lol


    Exactly
    Allison XB21 Prosport Mercury Racing 250XS with a 1.75 Sporty

  16. Member
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    #16
    That’s what I am always told

  17. BBC SPONSOR
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    #17
    Quote Originally Posted by tritontr21 View Post
    Nathan is SPECIAL! lol
    Fastbass Marine LLC
    We specialize in NEW and USED ALLISON BOATS, Blazer Boats, Platinum Mercury Marine Repower Center, AquaTraction Flooring, and custom marine electronic installations on beautiful Kentucky and Barkley Lakes.

    2022 Allison XB-21 BasSport Pro Elite
    2022 Mercury 450R

    2012 Bullet 21ss
    2005 Mercury 300X

    https://youtu.be/FOnAGNWOgZ0