replied to the thread Spec 3+ and Steel SMF
" I've had experience with 2 spec-3 clutches personally, maybe 4 or 5 through friends, and installed maybe 5 for customers in my time working on cars. Failure and unhappy rate was remarkably high. None were on BMW's, but I've seen two spring failures, a disc failure where the tabs holding the spring broke off, two throw out bearing failures, and the ones that didn't fail within 15k miles didn't last much longer before they would start to slip. Maybe 30k miles at best if the car was slow. All the 3's I remember using were 6-pucks though, and never really had smooth engagement, were noisy, harsh... the only thing they did well was keep people from successfully starting in first their first try.
It's why I am REALLY hesitant to give spec any of my money again for this car, and why I'm only even considering a stage-2. And I still might go with ACT or clutchnet or somebody else instead. Sorry, not usually one to rant about companies... except for spec.
The fact they are even talking to you surprises me a lot. They really like to blame the customer for any and all issues in my experience. And I'm glad they are finally acknowledging the pressure plate cannot apply pressure properly once their disc's are somewhat worn... while it doesn't necessarily mean it's failed, it can definitely mean a reduction in the rated torque holding capacity. "
Today, 03:20 AM