We made an adjustable pivot for the release fork. Tried multiple slaves, flywheels and a couple of clutch disks and nothing worked. Threaded the hole where the plastic pivot pin goes and used a long set screw and locking nut.
Wide Open Throttle Technologies (WOT-Tech)
The 1986 325es Delphin project LINK
Project 1988 325i sedan "Pinky" LINK