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Thread: UUC Flywheel and M5 Clutch Kit (anyone use it?)

  1. #11
    Quote Originally Posted by SoarinZHP View Post
    If one is capable of doing the job themselves, I'd say try it and see if you like it. Then you'd know for sure and could easily go back to a stock setup. I was not comfortable with my mechanical skills and had a shop do it - plus I needed the car back ASAP. At the time I was not (and still not) in the financial position to have a clutch replaced so frequently.
    Yea, I do all my own work and work on BMW's as a side business. But I don't want to do it more than once. The stocker went 138k miles, maybe I should stick with stock.

    And wow, that Grand Am flywheel ain't cheap. $900, ouch!

  2. #12
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    Grand-Am Fly should outlast anything you are gonna throw at it on the street! Would make a nice tax-return present
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  3. #13
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    Quote Originally Posted by Hornung418 View Post
    Do you stock ZHPer's experience any chatter in gear at low rpm or in neutral at a standstill? Because I've only heard of the Stock Flywheel Chatter issue upon shutdown with the car in gear/clutch depressed.
    I get the chatter when in neutral.



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  4. #14
    A little chatter in neutral. At shut down with the clutch depressed or in neutral... Always.
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  5. #15
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    No neutral chatter.

    Shut down in neutral, yes, but not if clutch depressed.
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  6. #16
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    Those responses are why I think this is limited to Six Speed transmissions. But it is not a bad thing, no harm is done to the car.

    However with the extremely lightened flywheels, they are meant to have a load on them at all times, except when starting the race...You can get away with a few pounds on a DD, but I would never go as low as 8.5 pounds...That's ridiculous.

    But the dual-mass flywheel is for the mass populations, so there are plenty of upgrades available for the enthusiast owner, but normal weight with a single mass is the best option for a lightly modded Daily Driver, IMO.
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  7. #17
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    Bump. So are there any Lightweight SMF's still in production? Would love 20lbs, but the one in this thread seems discontinued now.

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  8. #18
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    I DD a 15lbs flywheel, I'll have to check in the records who made it, but even though it was a learning curve I don't see myself going back from it. 8.5? Sounds a little extreme for DD purposes, the neutral chatter as is is already quite obnoxious, but imo it adds character :P
    Interested to see which you go with, always good to remember this stuff for the next time mine needs to be replaced(knock on wood)

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  9. #19
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    Quote Originally Posted by Prestovie View Post
    I DD a 15lbs flywheel, I'll have to check in the records who made it, but even though it was a learning curve I don't see myself going back from it. 8.5? Sounds a little extreme for DD purposes, the neutral chatter as is is already quite obnoxious, but imo it adds character :P
    Interested to see which you go with, always good to remember this stuff for the next time mine needs to be replaced(knock on wood)
    I found a 14lb from clutch masters but can't find anything between 14lbs and 25lbs. If you know something I don't then please let me know!

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  10. #20
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    SPEC makes the SB07S 20# steel single flywheel for the ZHP.

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