Browse Publications Technical Papers 2003-32-0013

Development of a 660cc Turbo-Charged Spark-Ignition Direct-Injection Engine 2003-32-0013

A new 660cc turbo-charged Spark-Ignition Direct-Injection (SIDI) engine was developed. The mini-car equipped with this engine is the first mini-car with a turbocharged SIDI engine to receive the Japanese Ultra-Low-Emission-Vehicle (ULEV) certification. The vehicle achieved a 5.7% fuel economy improvement on the Japanese 10-15 mode compared to the mini-car equipped with the baseline port fuel injection (PFI) engine. The baseline engine is currently used for both the mini-car and snow mobile vehicles, and it is feasible to expand the SIDI engine application to also cover snow mobile applications, and achieve the demonstrated benefits of low emission, low fuel consumption and high engine output


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