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CALSTART survey of major auto suppliers finds 70% don’t want US to change CAFE targets; split on amount of electrification needed

Green Car Congress

When presented with a list of technologies analyzed within a National Academies of Science report ( earlier post ) that might be used to meet fuel-efficiency standards, suppliers picked turbocharging and engine downsizing, along with higher-speed automatic transmissions, as the most critical.

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Does supercharging beat turbocharging?

Green Cars News

The Southwest Research Institute and Eaton examined the issue. They showed that supercharging with downsizing can offer fuel economy gains by around 12.2 Downspeeding and supercharging while optimising the transmission; or downspeeding and turbocharging – which can offer the greatest fuel economy improvement?

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