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  1. #1
    Awamori's Avatar
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    Changing the FZR/SHO Supercharger Wheel

    Not sure if this has been covered before, but I wanted to see if there were any pictures or guidlines for changing the wheels on these superchargers. If it's already been covered then sorry, but I searched and couldnt find much. Hate to ask alot also, but if any place had the info it's greenhulk.

    Things I think would be helpful, and great for noobs like myself are:

    1. Pics or verbage for what needs to be removed for wheel replacement.

    2. Same for the special tools involved/needed with changing the wheel.

    3. Things to maybe look out for if anyone has damaged one by just guessing like I would probably end up doing.

    4. Any tips to make the job smooth and done right.

    5. Maybe some details on exactly how to rebuild that sprag bearing if things have really not gone your way from some bad luck with the C3.

    Once again sorry if details have been covered, but I checked the library and did some key word searches just keep coming up empty handed. Thanks to all who contribute to this thread no matter how big or small.

    Greenhulk Rocks


  2. #2
    wakeboardmuppet's Avatar
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    These are the photos I took of mine in bits. I snapped the SC shaft so I ain't the one to offer advice other than inch pounds is just over finger tight. The photos and R+D instructions should see you through
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  3. #3
    Awamori's Avatar
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    Wakeboardmuppet....thanks for the pics they are awesome and show alot of what's involved. Hopefully, Allstar will post his pictures here as well because I read that he nailed down the sprag bearing re-build. Bigger hopes are I will never need to tackle it, but if we do I know there are some do-it-yourself peeps that have all the answers. Once again thanks. Going for the wheel replacement soon.

  4. #4
    mjh3ides's Avatar
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    Do you have the R&D instructions? I installed mine yesterday & they are very easy to follow & also list all torque specs for reassembly. I marked the different sized bolts holding the SC housing to the engine with colored sharpies to keep from forgetting which went where. An in/lb torque wrench will come in very handy for the job & prevent breaking the shaft...you'll need one that goes down to 70 in/lbs. Also, make sure to remember the nut holding on the impeller is a left hand thread, so you'll need to turn it clockwise to remove. The only snags I had was the ridiculously priced housing tool from R&D didn't come with the 8mm nuts & the included instructions were missing step #6. Luckily I had another instruction book for the SC that came with the manifold/CFM kit, so after a quick trip to the hardware store all went well.

  5. #5
    Awamori's Avatar
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    Quote Originally Posted by mjh3ides View Post
    Do you have the R&D instructions? I installed mine yesterday & they are very easy to follow & also list all torque specs for reassembly. I marked the different sized bolts holding the SC housing to the engine with colored sharpies to keep from forgetting which went where. An in/lb torque wrench will come in very handy for the job & prevent breaking the shaft...you'll need one that goes down to 70 in/lbs. Also, make sure to remember the nut holding on the impeller is a left hand thread, so you'll need to turn it clockwise to remove. The only snags I had was the ridiculously priced housing tool from R&D didn't come with the 8mm nuts & the included instructions were missing step #6. Luckily I had another instruction book for the SC that came with the manifold/CFM kit, so after a quick trip to the hardware store all went well.
    Actually I don't have the instructions, and couldn't find them on R&D's website. That's not saying they aren't there, I just couldn't find them. I think you just saved me a possible broken shaft....so the supercharger wheel is reverse threaded? Wasn't aware, I know prop impellers are. Was that what you were talking about or is it both.....must read more? Also if anyone has those instructions, electronic version, it would be greatly appreciated as my wheel was purchased second hand.

  6. #6

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    Make sure the o-ring on the bottom of the charger is placed properly so you don't smash it when you put things back together.

  7. #7
    mjh3ides's Avatar
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    Yes, the nut holding the SC impeller is left hand threads. I'll scan the instructions to a PDF for you.

  8. #8
    mjh3ides's Avatar
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    Here you go dude...including step 6.
    Attached Files Attached Files

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