This master course thesis has been developed at POWERTECH Engineering S.R.L., an important engineering consulting company, specialized in the field of 1D and 3D CFD analysis, in collaboration with Aston Martin Lagonda, a renowned high end performance car manufacturer. Computational fluid dynamics has become a fundamental tool in the development and optimization of new engines, by allowing a significant reduction in the need for physical testing, which in turn reduces costs and cuts time to market. This is why this project was developed using GT-POWER, a leading edge 1D CFD software, which also includes extensive tools for vehicle simulation. The subject of this thesis is a high specific output, V6, turbocharged, S.I.