Improve engine performance using twin spark plug ignition

Testing of an internal combustion engine is required prior to use in competitive energy-efficient vehicles. The ignition system on the spark ignition/SI engine can be modified to improve engine performance. This experiment aims to modify cylinder heads for two spark plugs and the setting of the ignition angle in SI engine. Investigations carried out by the method of changed load and fixed load for different ignition timing. The results show that the performance of a twin spark plug engine is relatively better than a conventional single spark plug ignition engine. Advancing 2 degrees from standard ignition time/angle in two spark plugs engine can increase the engine performance.