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  1. #1

    Supercharger shaft fusion welding

    was going to get a r&d shaft for my 18 GP1800 which will be stage 2 soon, it appears R&D has shut their doors. Donít like the failures Iíve read about on the Riva shaft. Anyone know where to send the shaft to be fusion welded? Iíve heard the fusion welding process doesnít add any material and therefore doesnít effect balancing.
    Thanks!


  2. #2
    Lake Lion
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    Dean's Team. Orlando, FL

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  4. #3

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    Fusion welding is just a big word for autogenious welding which is another big word for no filler added. Not sure why this is done as I don't know why anybody would not add filler as it makes it stronger. I understand balancing but also the part is weaker in the heat effected zone even more so when no filler is added. Thus I would thing balancing would be part of the process.

  5. #4
    I might have a r&d shaft for sale

  6. #5
    Hurricane1000's Avatar
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    That would be a great buy for any Yamaha with the supercharger! Modded or stock!

  7. #6
    youngDUMP's Avatar
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    The problem with the stock shafts is that the gear was turning on the shaft. Fuse welding is essentially just staking the gear on the shaft. It wonít be stronger but it accomplishes the goal. Is the stock shaft forged? I canít recall.

  8. #7

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    I believe in addition to being 1 piece the R&D shaft was made of a stronger alloy as well. Sorry to see they closed.

  9. #8
    It's too bad they closed,their shaft was the best on the market. I even tried to buy one to squirrel away for future use with no luck. I wonder if the guys and engine tech would make a shaft. They make wheels, custom chargers.

  10. #9

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    Surely R&D sourced someone to make those shafts, perhaps a little detective work could find out?

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