The 2.3 L (80.30 mm bore 74.20 mm stroke, 2255 cc) KJ-ZEM is one of Mazda's most technologically advanced engines. It employs the "Miller cycle" which uses a supercharger to increase compression efficiency by decreasing the compression losses (i.e., flywheel energy used to compress the intake charge in the cylinder); and thereby increasing the net power output of the V6. It was used in the T-platform cars. The supercharger used is the twin-screw type with electronic boost control. Power output was 217 hp (162 kW) and 210 lb·ft (280 N·m). The KJ-ZEM was on the Ward's 10 Best Engines list for 1995 through 1998.[WIKI]
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