Because there is a wide variety of Erson camshafts, the exact specifications vary from one model to another. While the E280111-K is compatible with various Ford engines, the E110042-K Street Fighter fits Chevrolet vehicles.
The E280111-K can handle RPM ranging from 1,000 to 4,000 and has a lobe separation of 110 degrees. It is for stop-and-go traffic usage and provides good idle and fuel efficiency. In comparison, the E110042-K Street Fighter is capable of high-performance use. It can handle nitrous oxide installations and modified engines. The Street Fighter has an RPM range of 1,800 to 6,200. Car owners can use the Street Fighter with stock rear gears as well as manual and automatic transmissions.