3 years ago a 1999 Volkswagen Passat was purchased and at the time of purchase it had a dual mass flywheel and a clutch disc with springs. When I replaced the clutch a few weeks ago, I finally figured out why the car tended to jump like a frog when accelerating hard and immediately after suddenly releasing the gas pedal. I changed to a regular disc without springs and the jumping frog problem disappeared, the start and gear changes are also much smoother now.
I’ve seen a lot of vids on the differences and advantages of both designs. Your simple description is so easy to understand. Very good illustrations. 👍I’m wondering if the reason for putting an unsprung clutch plate with the DMF is because the additional damping is not required? Hope I make sense here?
I went single mass FW on my R53, but found out they suck in stop-go traffic. Dual Mass FW OEM clutchs have more surface area and are less of a pain in shitty traffic... just my experience.
I’m expecting a compromised day to day feel but this car will become my weekend racer eventually so I am good with that. Was your lightened as well and if so, did you get any flywheel rattle?
Why would a company make dual disc unsprung clutches with single mass flywheel to be used on the street? Like the McLeod RST which has many reports of floater plate chatter under 2000 rpm.
My guess is that they tried to reduce the harshness of the singlemass FW and un-sprung clutch plates by using the twin plates. They market the RST as street-able but able to handle up to 800 HP so I am guessing the chatter at low RPM is just the tradeoff they had to make to get those two features to work.
Dmf cuts the gear rattle. What if we use light flywheel with single plate and use sprung clutch? Can we reduce or remove gear noise this way? What is your opinion?
Another question; do you know if I am replacing my DMF in my bmw e46 325 - is the most recent technology of centrifugal pendulums available in the aftermarket? I sent this question to Luk Shaeffler but haven’t heard back.
