Aftermarket clutches and chatter, feedback?

[S197OnSpray]

Just put in an ACT twin disk and haven't noticed any chatter. The pedal feel is a bit stiff but I prefer it that way although they do offer a twin with a soft feel to it. I removed the helper spring at the same time which might add to the heavy pedal feel a bit.

 

[Rebel302]

It's not the clutch, it's the fact you went from dual mass to a single-mass flywheel that causes the chatter. Benefits? Less rotational weight, improved mid-range torque, faster revs when the car is moving....Cons? Chatter, having to feather the gas/clutch to launch in everyday driving as you have reduced the rotational mass to the point of lost inertia. The only way to reduce some of the trade-offs going from DM to SM is to go with lightened steel instead of aluminum. Ask any clutch manufacturer....CM will tell you get steel if you aren't building a race car