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Thread: CV Shafts

  1. #1
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    CV Shafts

    Time to design our own assembly for racing.



    image-2662237487.jpg

    Stage 1 - bearing casing.
    Notice the housing is larger and allows for larger bearings.
    Last edited by Hoover; 05-23-14 at 12:32 AM.
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    Noble Automotive USA (TurboHoses Company)

    Noble M12/M400
    Hoover@nobleautomotive.com
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  2. #2
    this is a great idea... I destroyed one of the inners on a track day a few years back... expensive to replace and hard to get hold of genuine ones.

    do you think you will also beef up the outer?

  3. #3
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    andy,
    absolutely.
    we're starting with the outer assembly first and have a few ideas. We may have to machine the stub axle portion with adaptors, but it's definitely possible. I've ordered some parts and materials already.

    If my new gears work, combined with this shaft assembly, we should have a proper drive train components for the Noble.
    SCCA National Runoffs GT-1 Bronze Medal
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    Noble Automotive USA (TurboHoses Company)

    Noble M12/M400
    Hoover@nobleautomotive.com
    925 -455-1066

  4. #4
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    image-418470796.jpg

    Were using this as a donor.
    SCCA National Runoffs GT-1 Bronze Medal
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    Noble Automotive USA (TurboHoses Company)

    Noble M12/M400
    Hoover@nobleautomotive.com
    925 -455-1066

  5. #5
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    image-1469028149.jpg

    ............
    SCCA National Runoffs GT-1 Bronze Medal
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    Noble Automotive USA (TurboHoses Company)

    Noble M12/M400
    Hoover@nobleautomotive.com
    925 -455-1066

  6. #6
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    image-3695632039.jpg

    Well......
    The bearings aren't all the same size. Some are 2mm smaller.!!!!!!!!
    SCCA National Runoffs GT-1 Bronze Medal
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    Noble Automotive USA (TurboHoses Company)

    Noble M12/M400
    Hoover@nobleautomotive.com
    925 -455-1066

  7. #7
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    That seems rather amazing that there is such a spread in sizes

  8. #8
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    Quote Originally Posted by Pinnacle View Post
    That seems rather amazing that there is such a spread in sizes
    we found it accidentally.
    while ordering bearings, I forgot the size, so frank grabs another bearing than the first one he measured and there was a 2mm difference. This isn't good at all.

    I spent half the day working on components and frank spent the morning rescuing a broken shaft to mock up parts for measurement. There's so many different spline sizes, the cv hub must be custom for this application.

    I see there's going to be a minimum of two different levels of upgrades:
    1. a standard rebuild with correct size parts with new parts, not reground.
    2. a upgraded shaft assembly which uses new stub axles.

    This is much more work than I thought. Parts and materials have all been NDA. No doubt that the CV Shaft world is a specialty world in itself.......
    Last edited by Hoover; 05-28-14 at 05:58 AM.
    SCCA National Runoffs GT-1 Bronze Medal
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    Noble Automotive USA (TurboHoses Company)

    Noble M12/M400
    Hoover@nobleautomotive.com
    925 -455-1066

  9. #9
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    indeed, your finding out quickly where all the niggle details are hiding and coming to the surface through the racing program. PERFECT experience for your HVRx development racing program and will teach you wisely on keeping things simple, strong and not custom in every detail

  10. #10
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    it was perfect timing indeed. we were working on the cv shafts for the hvr.
    i took some of the parts to remake our own version of the outer assembly for the noble/rossion.

    i've looked at the "rebuilt" parts from autoparts stores and found that all the parts are reground which weakens the shaft by removing the surface hardening. The best way is to replace all the parts with factory Ford components which are very difficult to obtain.
    SCCA National Runoffs GT-1 Bronze Medal
    SCCA GT-1 Divisional Champion

    Noble Automotive USA (TurboHoses Company)

    Noble M12/M400
    Hoover@nobleautomotive.com
    925 -455-1066

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