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Thread: C5 upgrade

  1. #1

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    Talking C5 upgrade: C6

    I am getting my C5 upgraded to a lighter (and hopefully) larger diameter wheel. I'm having a second unit done as well which has some fairly major damage in the shaft area. The upgrade will also have a new heavy duty lightweight shaft. I'm calling it the C6.

    Warning, this has not been tried before so you may want to wait and see.

    The background is that my C5 had some major slop in the front bearing bush and I was loosing boost. This is probably due to the heavy wheel and shaft of the early designs. The unit had just done 10 hours. Luckily we got to it before it caught on the side of the housing. The other unit had pinched on the housing and stuffed everything.

    Gary is sending it off to have it done. So I figure more the merrier. Turn around will be 6-8 weeks. The B2B race is coming quicker every day.

    So if you want your C5 upgraded or you have a shagged HKS blower and want it rebuilt to a much higher spec, let us know. This will also help with clutch issues as well due to the ligther wheel.

    This is the last step before turbo options. Which I'm not too keen on, due to having to dissapate the extra heat from inside the engine bay.

    P.S. If you have this done you'll need a new MAP sensor (the original only goes to 16 or 18 psi), Motec, tune, gorilla grip and big car-hoon-nars

    P.S.S. I won't know the specs until it gets put back in the ski, sorry. I can speculate (bullshit) but we'll just wait and see. But it'll be better then before. Promise.
    Last edited by Gunna; 02-08-2010 at 07:06 PM. Reason: Spelling


  2. #2

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    Jerry, I hope this isn't stepping on your toes but I can't see anything like this for owners of C5's for sale around GH yet. We're stuck with HKS housings that have already been machined, so we can only machine them further. Dean.
    Last edited by Gunna; 02-08-2010 at 05:47 PM. Reason: .

  3. #3
    RichieFZR's Avatar
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    Quote Originally Posted by Gunna View Post
    This is the last step before turbo options.
    UUUMMMM Turbo FZR.

  4. #4
    hitman's Avatar
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    Dean, why the need to even mess with the housing this much? Can't you just run the 18 pound wheel or even wait a bit longer until the 20+ pound wheels come out?

  5. #5

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    Quote Originally Posted by hitman View Post
    Dean, why the need to even mess with the housing this much? Can't you just run the 18 pound wheel or even wait a bit longer until the 20+ pound wheels come out?
    Unfortunately not.

    When I had the C5 done last year it was sent away to have the housing machined to fit the C5 impeller. Just the way they did it way back then.

    Therefore an 18 or 20 which is designed to fit the standard housing profiles won't work.

    The joys of leading the pack is that the pack normally runs over the top of you later

    But now I have a good reason to spend even more money to make even more boost..........but at a much lower rpm. Hooray!

    Hope that makes sense??

  6. #6

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    Did someone say "TURBO KITS"

    Quote Originally Posted by RichieFZR View Post
    UUUMMMM Turbo FZR.
    http://greenhulk.net/forums/showthread.php?t=115065

    Read post #6 and 8.

    I love dobbing others in

  7. #7
    hitman's Avatar
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    Yeah it makes sense. Was just thinking it might be easier if you had access to another stock SC housing, you could just use it with the newer wheels coming out.

    I know exactly what you mean about leading the pack. That was my biggest fear in tearing into my ECU and the same thing kind of happened to me, so I know how you feel buddy.

    Keep at it. As the market changes you just have to keep adjusting your plans like it seems you've had to. I think you'll still come up with something worthwhile. I know you work pretty closely with some very smart people so no doubt you will make good progress.

  8. #8

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  9. #9
    RichieFZR's Avatar
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    Quote Originally Posted by Gunna View Post
    http://greenhulk.net/forums/showthread.php?t=115065

    Read post #6 and 8.

    I love dobbing others in

    HAHAHA! Man these some nuts on ski here!!! I like it!!!!!!

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