Hilliard Inferno Fire 4-cycle clutch
Sprocket not inluded, 3/4″ bore hub w/cover, racing drum, 4 black springs, 4 white springs, sprocket snap ring, shaft spacer (thrust washer), and oil impregnated racing bushing.
The Inferno Fire racing clutch is the latest engineered product for the racing industry. The Fire clutch includes all of the design advantages of the Flame with several new features that make the Fire the best drum clutch available on the market. The Fire clutch has a bonded friction lining that improves consistency and performance. The friction material has been engineered to have a dynamic coefficient of friction that is very close to the static coefficient of friction. This creates a flatter engagement profile with less engine bogging during lock-up. The racer can utilize the optional weights to fine tune the clutch to keep the rpm in a band close to peak engine torque. This is very important for sprint racing to get the best acceleration off the corners. The Fire clutch is ideal for the LO206 engine because of the smooth engagement and the ability to tune the clutch for each color slide. The friction lining prevents the drum surface from galling so no sanding is needed inside the drum and the clutch should be cleaned with brake cleaner. Other new features include the needle bearing design, grease trap and drum vents. The grease trap is engineered to catch any grease or oil that comes out of the bearing. The added radial vents allow any debris to quickly exit the clutch without getting trapped under the shoes. Less contamination in the clutch gives better consistency and performance. These new features make the Fire clutch the best choice for all classes. It is recommended to add the optional weights in classes weighing 400# or over for additional torque capacity