A major part of designing and developing a race engine that will last the duration of an event and then some is the ability to analyze the combustion event taking place within the individual cylinders. Combustion analysis involves a detailed examination of conditions within the cylinder during the combustion process. Using crankshaft position as a reference, temperature and pressure are measured and recorded several thousand times a second. Examining this data provides a clear indication of how changing engine variables such as injection timing, fuel amount, manifold flow, etc. directly influence the engine's power output. This information, once gathered, is used to improve the combustion efficiency, improve energy transfer, enhance the fuel spray characteristics, reduce the emissions and improve the design of various systems.