Downspeeding and supercharging with transmission optimization can deliver fuel economy improvement over downspeeding and turbocharging
Green Car Congress
MAY 9, 2012
The downsped supercharged configuration also retained the first gear acceleration, top gear passing, and 0-60 mph acceleration of the baseline turbocharged vehicle. Engine downsizing and downspeeding are two strategies that can be applied to gasoline and diesel engines to improve vehicle fuel economy.
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