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The purpose of this study is to find the suitable working conditions of a Pressure Wave Supercharger (PWS) that is coupled to a gasoline engine experimentally. The working condition is validated by stationary measurements on an engine dynamometer. To achieve an easier system structure, it was examined to use the engine output for driving of PWS. As a result, it was confirmed that the engine coupled with PWS could be driven by making the ratio of the PWS rotor speed and the engine speed constant.

In this study, we have evaluated the performance of undertray and rear wing in formula SAE. The undertray was adopted to increase the driving force transmission. And in order to further increase the driving force and prevent the car from oversteering in high speed areas, a rear wing was mounted. Finally, by mounting these aerodynamic devices, driving force increased by 41% (undertray 14%, rear wing 27%) at the speed of 90km/h, and by calculating the value of stability factor measured by cornering power, improvement of the vehicle's oversteering tendency was confirmed.

High rigidity and lightweight are important factors in every frame of vehicles. In Formula SAE vehicle design, to achieve this purpose the target value of the torsional rigidity of the frame was determined in the test run, and the conditions of analysis were also developed to be able to measure the compartment of the frame which concerns the actual driving conditions of the vehicle. Additionally focusing on the dynamic conditions of the vehicle, special devices for the frame were employed. Finally, the weight of 2008 year's model was saved by up to 29% from 2005 year's model, in spite of the torsional rigidity was downsized by only 12%.