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Nissan to use mirror bore process on new 2.5L engine for Altima; highest volume application of technique

Green Car Congress

The team in Decherd assembles an engine every 19 seconds and is capable of building about 1.4 The leeway gained can go towards increasing fuel economy and engine power. Water is applied during this stage is intended to keep the machinery and metals at optimum temperatures and reduce friction. million engines a year.

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Perspective: A View Into the New GM

Green Car Congress

The morning session started out with an hour long press conference, the highlight being the unveiling of the Volt’s 230 mpg preliminary EPA city fuel economy finding ( earlier post ), as well as a tour showing selected elements from the studios of the four GM North American brands: Chevrolet, GMC, Buick and Cadillac. Click to enlarge.

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Cadillac launches new V-6 family; 3.0L Twin Turbo w/ cylinder deactivation and stop/start for CT6

Green Car Congress

Twin Turbo is the only six-cylinder engine to combine turbocharging with cylinder deactivation and stop/start technologies to conserve fuel. Cadillac expects the combination to enhance fuel economy by up to an estimated 6%. is up to 4 dB quieter than the Infiniti 3.7L supercharged V-6 (310 hp and 103 hp/L). V-6, GM said.

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