Toyota's massive engine overhaul - 0 views
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Toyota Motor Corp., after long neglecting the humble internal combustion engine in favor of hybrids, is preparing a sweeping powertrain makeover.
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The automaker is designing common parts to spread costs across large numbers of engines. This will allow it to economically customize engines for specific vehicles with fuel injection, turbocharging and more.
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The goal is to cut costs and maximize performance by standardizing the basics: bore, stroke, combustion cycle, valve timing and components such as engine blocks, cylinder heads, cam-shafts and crankshafts. After that is where the hair ornaments come in.
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The strategy underscores how Toyota is playing catch-up in a fundamental field, as rivals gain on the automaker's top fleet average fuel economy in the United States with big advancements in such fuel-saving technologies as direct injection, turbocharging and stop-start systems. For years, Toyota has focused on its best-selling gasoline-electric hybrid systems. It hasn't abandoned that track.
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Toyota is seeking fuel economy increases of up to 30 percent and cost cuts on key components of up to 50 percent.
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"Just like putting something beautiful on top of your hairdo, by using kanzashi through such things as turbocharging or downsizing, you can improve the performance of the engine."Kanzashi add-ons may include direct fuel injection, exhaust gas recirculation systems or stop-start technologies that turn off the engine when the vehicle stops.
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The EPA's annual report on fuel economy trends, which calculates automakers' fleet average fuel economy based on sales, shows Toyota losing ground to rivals such as Nissan and Mazda. For example, in 2010, Toyota's U.S. fleet average fuel economy was 25.4 mpg. In 2013, it was 25.2 mpg. Meanwhile, Mazda improved from 24.4 mpg in 2010 to 27.5 mpg in 2013, and Nissan rose from 23.3 mpg to 24.6 mpg during the period.
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"Eventually we think this is where the technology is going, but right now we don't know what the reaction of U.S. customers will be," he said. "So probably right up until the last moment, we will have to be ready with both and watch customer feedback."