Cylinder Head Tuning of a Spark-Ignition Engine and Validation on a Chassis Dynamometer to Verify Its Power

The research is motivated by the high levels of contamination and lack of efficiency, especially due to the exponentially increasing vehicle fleet in Ecuador, the proposal is to modify several components and characteristics of the cylinder head such as the combustion chamber, the valve mechanism system, the intake and exhaust system of the spark-ignition engine, which will result in changes to the power of the engine and thus the vehicle and this was measured in the chassis dynamometer since this result can be obtained directly through the vehicle. With the present research you can achieve a bulwark of machining in the elements of the engine where the calculated theory is reflected in practice and in the chip starting that will be given to the cylinder head linking fuel consumption and compression ratio, the engines look good or bad according to the power sought experimentally. In conclusion, from the measurements made, in general there is an increase in the power performance of 30.08% with the modifications and specifically at the maximum power at 4400 rpm, measured in the chassis dynamometer, which were the result of the modifications of the cylinder head of the engine with respect to the standard cylinder head of the vehicle’s engine.