Development of new MZR 1.3/1.5 engine

摘要

The MZR 1.3/1.5 is a newly developed I4 engine which has embodied the Mazda's brand message "Zoom-Zoom", the love of motion, and is mounted on the New Demio as the second of the 'MZR', one of Mazda's new-generation engine series, following MZR 2.0/2.3 engine mounted on the Atenza. In order to support the Fun-to-Drive spirit of the Mazda's DNA, such targets have been achieved as BIC (Best In Class) torque, especially in a practical range, pleasant engine sound, Eco-friendly performance which meets the certification of 'Excellent-Low emission vehicle', and outstanding reliability. This paper describes the performance and engineering attainment of the engine.