12ja b berkeley
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12ja b berkeley

  1. #1
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    Default 12ja b berkeley

    well i just purchased myself a berkely 12ja b pump for the little 13 b now im in the process of finding a turbo, shooting for 300 hp at 7500rpm with 10 lbs boost

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  3. #2
    Senior Member glastornjet73's Avatar
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    thats bad ass i love rotary's post some pics when u start getting it rigged

  4. #3
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    Thumbs down

    i surely will post some , it might be a while though i just got laid off

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    ahh hell i didnt even see some one who had already posted about a berk 12ja

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    how in the heck im I going to hook up a drive line to the rotary

  8. #6
    Menominee, mi UP
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    you will need a gear reduction set up, i thought about doing this for a couple of years, cool project

  9. #7
    Senior Member glastornjet73's Avatar
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    send the adapter that bolts onto the excentric sheft out to tom a jbp and he can make you a pto adapter

  10. #8
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    i dont have any part of the drive shaft or couplers

  11. #9
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    Quote Originally Posted by thompy View Post
    you will need a gear reduction set up, i thought about doing this for a couple of years, cool project
    What kind of gear reduction -who makes um -where can i get on

  12. #10
    Seriously off center slowride's Avatar
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    Google "underdrive transmissions". Gear Vendors, US Gear, etc. There's even one on Craigslist. You need to do your homework and figure out what operating rpm you want, what ratio will deliver that and how much torque.

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