Various experiments are performed for detecting engine characteristics. In these experiments some values are kept constant; for example, engine power, torque and fuel consumption is measured as the values, depending on these motor characteristics are obtained by making a calculation. In this study, the simulator program is designed for analysis and synthesis of engine’s characteristics. The program , according to data obtained and entered the engine curve to be drawn (numerical or graphical), to examine the changes interactively based on input parameters, calculations are done for the value cannot be measured, and many other features. Thus, in order to obtain characteristics of the engine or in the expression-related issues provides great convenience for understanding and education.