Toyota is overhauling it's engines to boost fuel economy, cut emissions and increase performance. But unlike other automakers, Toyota does not plan to reduce engine size and strap on turbochargers across the board.
Eventually all of Toyota's engines will get the same technology that debuted in the redesigned 2018 Camry, Ben Schlimme, Toyota Motor North America's powertrain executive program manager for advanced planning and research, said at the CAR Management Briefing seminars.
Camry's new 2.5 liter four cylinder engine, called Dynamic Force is rated at 206 horsepower and gives Toyota's top-selling sedan and EPA rating of 41 mpg on the highway. Toyota didn't reduce the size of the Camry engine. It was 2.5 liters for 2017. Instead, engineers worked to improve engine efficiency in four main areas: friction reduction, exhaust flow, cooling and in the intake system. As a result, the 2.5 liter engine has increased its thermal efficiency (the rate at which fuel is converted to work) to 40%. Few engines have attained that rate.
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