Fidanza Light weight flywheel vibrations at 4500rpm and above? Help

[raffa_mk]

I have recently bought a fidanza light weight flywheel and its fitted in my 6 speed box along with exedy clutch that I previously had, since fitting the new flywheel i get vibrations 4500rpm and above, clutch etc is not marked or damaged before and after installation

So my question is

Does it need balancing? But it's a new flywheel or do I need a different clutch?

Or is it something else?

And has anyone else had a similar experience ? As being light weight does it not absorb the vibrations as the standard flywheel if you get what I mean?

Please help guys

Edited July 3, 2012 by Raffa_MK

[mattyD]

Might have something to do with where the clutch and flywheel meet? As its a used clutch the surface won't be as smooth as the flywheel possibly causing the vibrations..........I dno :s lol

[morgey]

It should be a cnc machined flywheel so ahould be very good, mines fine unbalanced. Maybe an engine mount or loose bolt or two somewhere?

[raffa_mk]

Well the flywheel has been checked but It's within tolerance of the manufacture so thinks its down to clutch plate, will soon find out when it's replaced