This paper focuses on viewing the increasing power by pre-charge turbocharger with thermodynamic calculations and simulations in the program. First, it went through thermodynamic calculations where the advantage had a calculation without pre-impaling and each step was counted in detail. After that went the calculation with pre-impaling in which we saw by how much power increased by changing individual parameters. During the calculation, other values were also taken into consideration other than power, torque, heat flows, specific fuel consumption, airflow, and others. After the theoretical part, we moved on to a program that performs simulations. In it, we conducted two separate simulations. When reading the results of the simulation, it was immediately compared with the values obtained in the calculation and their deviations. In the end, the advantages and disadvantages of turbocharged pre-charge were compared, and it concluded that turbocharged has greater benefit on the internal combustion engine.