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Message:: [QUOTE="DUKE_68, post: 1241583, member: 33494"]Engine & transmission For Evolution IX the 4G63 engine gains Mitsubishi's MIVEC variable valve timing technology that improves top-end output as well as fuel efficiency. MIVEC technology allows GSR to return 10.0 km/l in the Japanese 10-15 mode driving cycle, equivalent to a three percent improvement in mileage. On GSR, the turbocharger uses a lengthened diffuser to generate more low-end and mid-range torque (400 N-m(40.8 kg-m)/3000rpm) as well as bring a significant improvement in response (average 5%) across the full rev range. On the RS and GT, the turbocharger compressor wheel uses magnesium alloy instead of aluminum alloy. This brings a dramatic improvement in supercharging response. Mated to a 5-speed gearbox with higher torque capacity, the engine has been tuned to generate maximum torque of 407 N-m(41.5 kg-m)/3000rpm. The 5-speed transmission used on the RS and GT derives from the close-ratio competition gearbox but has a revised top gear ratio for improved high-speed cruising.[/QUOTE]