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Old 04-12-2009, 10:26 AM   #9
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Join Date: Feb 2006
Location: DFW
Posts: 5,735
My Ride: ESS TS2+ ZHP
Originally Posted by jorg323 View Post
What's the difference between a single and double mass clutch?
I think you mean single and dual mass flywheel.

Either the flywheel or the clutch should contain a damping mechanism (springs). For this reason, a dual mass flywheel will typically utilize a rigid clutch disc (no springs) and a single mass (all aftermarket lightweight flywheels) should utilize a sprung hub clutch.
04 IR 330i ZHP | ESS TS2+ SC | MagnaFlow "headers" | KMS 3.64 LSD | AST 4100 550/650| APEX ARC-8 18x9 | H&R front sway bar | Vorshlag camber plates, RTAB limiters | TMS subframe & swaybar reinforcements | UUC SSK & DSSR | UUC TM & TME | BW motor mounts | Dinan strut & shock tower bars | vaio 4-bolt oil pump
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