The Stuska TrackMaster dynamometer systems offer exceptional engine testing capabilities with proven water brake technology and a sophisticated, yet easy-to-use data acquisition and controls package. The heart of the TrackMaster System is the proven Stuska water brake dynamometer. Stuska dynamometers were introduced to the market in 1963 as a low cost, durable, high-performance dynamometer. The fact that thousands of these dynamometers have been sold, and that many systems older than 20 years are still in operation is proof of their reliability.