Abstract

Intake manifold determines the charge flowing or the mass flow rate of the fuel and air mixture, which greatly influenced the volumetric efficiency of an engine. It has a great impact on engine power and torque. They are greatly affected by degree to which cylinders are charged & geometrical parameters of intake manifold. Every specified engine has its specific engine speed and it can be optimized with the help of the intake manifold geometry. Current work aims to study the effects of various designs of Intake manifolds for a naturally aspirated Royal Enfield EFI500 engine and to increase volumetric efficiency for FSAE related competitions, by doing CFD simulations and tuning of runner length. The objective is to increase the volumetric efficiency of the engine assuming a standard restriction of 20mm diameter to limit the overall power output. After CFD on intake manifold, results obtained in the least pressure drop and hence maximum volumetric efficiency.

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