Does anyone have the minimum thickness spec on the Fidanza friction ring? - Miata Turbo Forum - Boost cars, acquire cats.

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Old 05-10-2010, 11:20 PM   #1
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Default Does anyone have the minimum thickness spec on the Fidanza friction ring?

I've tried phoning and emailing Fidanza's tech reps as well as one of their vendors and haven't received a response yet. Google and forum searches haven't yielded an answer so I thought I'd try a post.
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Old 05-12-2010, 10:53 PM   #2
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If anyone cares to know, I eventually received an answer from Fidanza as follows: "Anytime you change the clutch you should change the friction surface on the flywheel. The friction surface should outlast the life of the clutch disc." No spec provided though.

In my case, the clutch replacement was prompted by need for vastly more torque capacity in light of other engine upgrades, so the <10k miles may not have merited replacement of the flywheel surface and surface appears in good shape without grooving or visible uneven wear, but given all the other money I've thrown at this project, I guess what's another $60. I'll get a new one.
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Old 05-13-2010, 11:05 AM   #3
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that's funny... I have the fidanza for 7.25" clutches (for my twin plate) and they said I could resurface it once as long as I maintained the proper step height to the mounting surface of the clutch from the friction surface.
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