UUC TWIN DISK FLYWHEEL/CLUTCH SYSTEM The ultimate flywheel/clutch system you can daily-drive. Traditionally, high power and a clutch that matched meant uncomfortable street driving... high pedal effort, jerky engagement, weird noises, short part lifespan. Is it possible to have the best of all worlds? Yes, it is now. The UUC Twin Disk system is different than the traditional multi-disk clutches from other manufacturers in several key areas: UUC other brands Full-size 9" disks 3" or 4" disks Progressive-release pressure plate Race plate with on/off characteristics Performance Organic clutch material that can be deliberately slipped like an OE clutch. Metallic or ceramic disks that cannot be slipped. Reasonable total package weight for normal upshifting/downshifting control. Minimal weight which makes rpm control difficult. Uses standard clutch slave cylinder and release bearing. May require hydraulic slave conversion. Smooth engagement, no judder, no noise. On/off engagement, judder or jumping if released slowly, squeal or clunking. Reports are in... I installed the twin disc clutch in the BMW and it works great. The clutch is smooth and surprisingly can easily be slipped like a passenger clutch despite it having two solid friction plates. The clutch performed very well in the Enduro race with absolutely no issues. I'm very pleased. - Bob G. A video posted by one of our Twin Disk users: Twin Disk clutch and flywheel technology for powerful BMWs (V8 or turbo), BMWs that see extreme use (race/drift), and even for those that want an extended clutch lifespan. Keeping a working clutch in a very powerful BMW since newer technology lets many models easily exceed 500hp, 700hp, or even 1,000hp. The problem becomes even worse when these cars are used like they are really meant to be, not just as dusty garage queens. UUC has a solution to this problem. By literally doubling the clutch surface area with twin clutch disks, there is now an option that has long-term durability, high power capacaity, and smooth-as-original operation. Unlike other race clutches that are noisy, clunky, heavy, or short-lived, the UUC Twin Disk package drives just like a normal clutch. It can be slipped smoothly in stop-and-go traffic and requires no more leg power on the clutch pedal than the original clutch. This package truly can be used in a daily driver BMW without any compromise whatsoever. Packaged with a reduced-weight flywheel, a rotational mass savings will improve the car's acceleration and make it even easier to modulate clutch engagement with rpm. A noticeably quicker and livelier car is the result. Larger surface area of a smoother-functioning material is the key to combining the characteristics of high torque capacity with street-friendly operation in this all-new design. This unique design combines the stiffness of a steel cage with the reliability and compactness of a steel cover, and maintains normal pedal effort. Total package contains everything required: flywheel, clutch disks, aluminum cage, steel cover, release bearing, and all hardware. Material guideline based on power output: Twin Organic: 850hp, 600ft-lb applications Twin Feramic: 1000hp, 800ft-lb applications Twin Feramic HIGH CLAMP: 1000hp+ applications (greater pedal effort will be experienced) Available fitments (click here for pricing and ordering info): E39 M5 1999-2003 E39 540i 1997-2003 Z8 E46 M3 E46 330 6-speed E46 330/328/325/323 5-speed E36 M3 E36 M3 6-speed (Euro spec) E36 328/325/323 MZ4 Z4 3.0i/2.5i MZ3 Z3 3.0/2.8/2.5
