Quote:
Originally Posted by mcrews
If you drive in an ecomodder fashion you might get the 'same' mpg because you would never engage the boost.
The idea behind a turbo is to allow an engine that would underperfom in hp to provide more hp only when needed.
THe new Eco-drive hybrid from Ford, the fusion, has the ecoboost turbo BUT also has an electric motor. that is where the increased mpg is coming from
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I think the mpg increase are from it being a downsized Atkinson-cycle engine (2.5L -> 1.6L), the turbo and electric motors are probably mostly to make it more enjoyable to drive.