ACT Clutch FAQ's

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Street / Strip Discs
Organic, spring center replacement disc designed for smooth engagement, quiet operation and improved durability. We offer the best brands for the application. Street ACT Clutch discs can be used with moderate to heavy duty applications including racing depending on torque output and heat. View our application chart for more information on torque capacity. When a special act Performance Organic disc is available the suffix "S" will appear in the disc part number. These discs use special performance linings that are designed to withstand high heat and high RPM. When the suffix "M" appears, the disc has been modified by reducing the marcel enabling quicker action. If you have questions about a certain application consult us. With all the hype about different lining materials available we still contend that nothing can beat a good quality organic disc for street use. A good example of this is the Eclipse/Talon AWD Turbo. This application can be especially hard on clutches because of all wheel drive, the heavy weight of the car, and limited clutch size. Yet because of the durability of the Performance Organic Street Disc, many of the fastest Eclipse/Talons owners enjoy smooth engagement, 11 second and even 10 second timeslips. This same act performance lining is available for several applications where there is a particular need. It takes a lot of abuse and yet engages smoothly.

 

Heavy Duty Pressure Plates
Great holding power, better 60ft & 1/4 mile times, and long life are all benefits that come along with these plates. What makes our ACT Clutch pressure plates the highest standard of the industry? First, we start off with new ACT Clutch units. We do not offer rebuilds (except for special circumstances or warrantee work). Second, we increase the pressure the right way: by changing the diaphragm. Our ACT Clutch diaphragms are specially heat treated through an exclusive 3 stage process and then hardened on the release bearing contact area to reduce wear. Third, we make sure that the pressure curve and release travel of the unit is in the right working range. Forth, we use proven assembly procedures that insures consistency and precision. Finally, we accurately balance and test every unit we produce. No guesswork, no hype, only proven engineering and calculated results.

 

 

 

 

 

Xtreme Pressure Plates
The maximum holding power available! Our solution: apply more diaphragm pressure. With a less aggressive ACT Clutch street disc, this makes a great combination for high HP street cars that prefer smooth engagement. For racing, combine our act Xtreme Pressure Plate with our ACT Clutch Xtreme Disc for the ultimate in torque capacity and durability. What makes these units so unique is a radical increase in pressure without altering the proper geometry or stacking of diaphragms. The result is maximum holding pressure and long life, while maintaining good release clearance for fast, clean shifting. This can only be done with a specially engineered diaphragm. On some units, like the one shown above, we actually include gusseting the cover to reduce flex caused by the the high pressure. These are made with the same high standard as our heavy duty pressure plates. You will find these on many of the fastest cars on the track. How do they feel? A little stiff, but smooth! ACT Clutch Xtreme Pressure Plates can be identified throughout the application chart when the pressure plate number is followed by a suffix "X".