When choosing a clutch for performance vehicles, we should be considering clamp load. Clamp load is the force exerted by the cover assembly onto the clutch plate. Increasing the clamp load on the cover assembly is a common way to get more torque capacity from your clutch system. It involves increasing the load exerted by the diaphragm to clamp the clutch disc between the pressure plate and the flywheel. The amount of clamp increase is limited as this can make the clutch pedal feel heavy and put strain on the clutch actuation system. PHC heavy-duty clutches
provide a significant increase in clamp load, which reduces ‘slip’ while simultaneously increasing power delivery over a more comprehensive horsepower range. They provide drivers with a powerful next-level upgrade to standard kits.

Therefore, if your vehicle is towing, used for delivery driving, trade use, or has engine modifications the PHC heavy-duty clutch is the ideal choice for a clutch upgrade.