Crank Hub Galling

Discussion in 'PSI Superchargers Tech Questions' started by TOL, Dec 7, 2023.

  1. TOL

    TOL Active Member

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    Apart from a spline drive deal crank..........

    Are there any other effective ways to stop it with a normal two key conventional deal ?

    Thanks.
     
    #1
  2. kosky racing

    kosky racing Comp Eliminator

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    Special bolt and washer 450# tourque
     
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  3. TOL

    TOL Active Member

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    Where would a person find this special bolt and washer ?
     
    #3
  4. TOL

    TOL Active Member

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    Would Loctite help ?
     
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  5. kosky racing

    kosky racing Comp Eliminator

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    automan
     
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  6. tad1011

    tad1011 Member

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    Plus never sieze on crank
     
    #6
  7. TOL

    TOL Active Member

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    How much of a benefit is a crank support on a BBC deal? Either rear or front bearing setup?

    In my case planning to run 192% over with a PSI-C.

    The BBC snout is pretty compact and stout, but I need to order (or potentially custom design) new cranks.

    Thoughts would be appreciated.

    Thanks.
     
    #7
  8. kosky racing

    kosky racing Comp Eliminator

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    no help
     
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  9. TOL

    TOL Active Member

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    Meaning no net benefit?
     
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  10. kosky racing

    kosky racing Comp Eliminator

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    exactly
     
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  11. Bjs344

    Bjs344 Member

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    How can you possibly say that? An RCD external support will absolutely prolong the life of a BBC crank. High OD and a tight 8mm belt will kill a decent crank at the #1 main fillet in short order. I’ve always heard Winbergs don’t need a crank support but I don’t buy it
     
    #11
  12. kosky racing

    kosky racing Comp Eliminator

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    I have had all types all overdrives- all style blowers- crankshafts . All syle of supports-The outboard is to flelxible to do any good after you have it all set up and tightened put a small bar on it and it still moves. Been there and done all of the above-the inboard does seem to help Oh by the way how can I say that is because I was down that road many times - the cranks are the KEY Bryant-Wineberg -New Callies big$
     
    #12
    Last edited: Dec 15, 2023
  13. TOL

    TOL Active Member

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    Mike, can we talk a bit off-line?

    Email or phone.

    Thanks.
     
    #13
  14. kosky racing

    kosky racing Comp Eliminator

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    412498 7147
     
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  15. crdafoe

    crdafoe Member

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    Having a crank hub made from a dissimilar metal, such as Titanium, helps the galling and metal transfer. And having the bolt and washer to torque to 400 ft lbs. If the crank snout isn’t 3/4-16 thread, you need to have it drilled and tapped. 1/2” is insufficient to get it tight enough.

    https://www.automan-tech.com/engine
     
    #15
  16. FMFC573

    FMFC573 Member

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    we lost our galling with a titanium hub
     
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  17. TOL

    TOL Active Member

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    Did you use anti-seize as well?
     
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