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

[Smolck]

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!

[Hornung418]

Grand-Am Fly should outlast anything you are gonna throw at it on the street! Would make a nice tax-return present

[az3579]

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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[SoarinZHP]

A little chatter in neutral. At shut down with the clutch depressed or in neutral... Always.

[kayger12]

No neutral chatter.

Shut down in neutral, yes, but not if clutch depressed.

[Hornung418]

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.

[YoitsTmac]

Bump. So are there any Lightweight SMF's still in production? Would love 20lbs, but the one in this thread seems discontinued now.

[Prestovie]

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)

[YoitsTmac]

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!

[RWD Twisted]

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