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The main purpose of Formula SAE competition (hereafter called “FSAE”) is to let students learn the basic ability necessary for engineers through design, fabrication and test projects[1],[3],[5],[6],[7],[8],[9]. In this study the authors decided to adopt Honda CBR 600 RR which was an engine for motor cycles. Then the engine have strength enough for the light weight design[2],[4]. As the course of the competition consists of short straights and many corners for running within equal to or less than middle speed range, the engine must have excellent acceleration performance to reduce the lap times in the corners. The effective engine performance is necessary for the flat torque in all of engine speed range, especially in low engine speed range. As the regulation allows that a turbocharger is fitted to an engine, its introduction is effective for getting high torque in the low engine speed range.

This study refers to the dynamic stabilities of pitching and rolling of our manufactured Formula SAE vehicle by numerical analysis and dynamic experiments. Formula SAE Competitions are the events of design and manufacture of the Formula SAE vehicles for university students under the auspices of SAE (Society of Automotive Engineers in U.S.A.). This competition consists of static and dynamic events. The abilities for the engineering design, cost and presentation of the students are judged in the static events. The driving reliability and durability of the competition vehicle are judged in the dynamic events. For the higher winning prize at this competition, it is to get high score in not only the static events but also the dynamic events. The competition vehicle is required excellent acceleration performance, turning performance and durability in the dynamic events[1],[2],[3].