The diesel motors has prompted the outflow of risky gases like Sulfur oxides, nitrogen oxides and carbon monoxide, which can additionally prompted issues like acid rain, These discharges can likewise influence human well being and increment a dangerous atmospheric devation which has prompted the requirement for interchange energizes. Biodiesel is one of the choices which are by and large broadly considered and its generation from oil seeds is constrained by yield land dislodging, The impact of variable pressure proportion at various burdens with turbocharger is utilized to break down the presentation and to improve the exhibition of an I.C motor and to expand the effectiveness of the single chamber four stroke diesel motors. The turbocharger is utilizations to the vitality of fumes gas to drive more air-fuel blend into chamber to expand the motor power. The properties of Pongamia pinnata oil mixes with diesel are tried in a variable pressure proportion motor (VCR motor) with turbo charger arrangement. The presentation attributes of the motor are utilized to decide the brake control, explicit fuel utilization, warm effectiveness, and so on.