This work addresses the design and optimization of a small-displacement internal combustion engine for a competitive experimental vehicle. This competition encourages students to design and construct vehicles with the highest possible energy efficiency. Participating teams compete in various categories; the category of this work aims to cover the greatest possible distance using the equivalent of one liter of fuel. The paper concentrates on key aspects of engine concept development, including the selection of a suitable concept, modification of an existing commercial engine, and the design of a proprietary solution.

KEYWORDS: Internal combustion engine, optimization, small-displacement, efficiency