The client requested upgrade of an engine dynamometer control and measurement system for Harley Davidson motorcycle engines. Mr. Weekley added hardware and modified software to increase the number and type of measurements. Sensors included thermocouples, pressure transducers, strain gauges, and air/fuel ratio meters. The operator can control the engine throttle and the resistive force of the water brake dynamometer by moving controls on the computer screen with the mouse. The screen simultaneously displays head temperature, block temperature, exhaust pressure, air/fuel ratio, rpm, and calculated horsepower and torque.