Design of engine components with composite material In the last decades, the automotive sector has experienced great progress in reached velocity, comfort or security. These new conditions, together with a stricter legislation about the global pollution, lead to new requirements that the fabricants must face in the market. One of the fields where the companies are spending their effort and time is the engine efficiency and fuel economy. In this optimization process, FEM (Finite Element Method) is the most used tool, being the weight component reduction one of the most important aspect to decrease the fuel consumption. In this project, a new configuration for the connecting rod has been analysed in terms of material stress and weight reduction.