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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Spec Stage 3+ owners in here



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      11-14-2014, 03:51 PM   #1
Nicky92
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Spec Stage 3+ owners in here

Just got my Spec Stage 3+ clutch installed with their lightweight single mass flywheel.

Questions

I hear a lot of grinding and chatter INSIDE the car at low RPMS, it goes away when clutch is down. Seems to be normal I think? Never had a clutch sound like this before so I can't say for a fact.

It does not seems smooth...mind you there's only 60 miles on the clutch.

Am I just freaking out? Is everything ok?

Thanks!
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      11-14-2014, 04:02 PM   #2
Chrisruf911
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Normal. The single mass will induce a lot of gearbox rattle. The clutch will be noisy at low rpms also. I went through the same thing with my 2+. I put the uuc fluid cocktail in the tranny and the gearbox rattle is gone other than when the a/c is on. Even then it's greatly reduced.
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      11-14-2014, 04:09 PM   #3
335NJ
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From what I've read, that setup will be loud/chatter. Also, the clutch should smooth out engagement as it breaks in a bit. Drive often and try to rack some miles on it.
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      11-14-2014, 04:16 PM   #4
jazze90
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Just life with a single mass flywheel. It is completely normal.
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      11-14-2014, 04:25 PM   #5
Nicky92
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Alrighty then, Thanks
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      11-14-2014, 04:33 PM   #6
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Did you go with SPEC's steel or their aluminum single mass fly?

The lighter aluminum one will allow more tranny rattle.

Neil
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      11-14-2014, 04:40 PM   #7
Nicky92
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I went with the steel one
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