The first Ford Vehicle to feature this engine was the 2007 Lincoln MKR Concept under the name TwinForce.[39] The engine was designed to deliver power and torque output equivalent to a typical 6.0 L or larger displacement V8 while achieving at least 15% better fuel efficiency and reduced greenhouse emissions. In the MKR the concept TwinForce engine was rated 415 hp (309 kW) and 400 lb·ft (542 N·m) of torque, as well as run on E85 fuel.[40] When the same prototype engine reappeared in the Lincoln MKT concept in 2008 North American International Auto Show, the name was changed to EcoBoost. Official EcoBoost production began on May 19, 2009 at Ford's Cleveland Engine Plant No. 1.
The production engines use the Duratec 35 V6 engine block. The fuel charging and delivery systems can attain high fuel pressures of up to 2150 PSI, necessary for efficient operation of the direct fuel injection system. It uses two BorgWarner turbochargers which can spin at up to 170,000 rpm and provide 12 PSI of boost. The turbos are set up in a twin-turbo configuration. The engine can consume up to 25% more air over the naturally aspirated counterpart. Through the use of direct injection, the engine needs only regular-grade petrol to run. The EcoBoost V6 was first available as an engine option for 2010 Lincoln MKS, followed by 2010 Ford Flex, 2010 Ford Taurus SHO, and 2010 Lincoln MKT.[41] The fuel charging and delivery systems were co-developed with Robert Bosch GmbH.[42]
In 2009 Ford modified an experimental 3.5 V6 EcoBoost engine with both E85 direct injection and petrol indirect fuel injection, which achieved a BMEP (brake mean effective pressure) of 395 psi (27 bar), which translates to approximately 553 pound-feet (750 N·m) of torque and 316 horsepower (236 kW)@3000 rpm (flat torque curve from 1500–3000 rpm).[43][WIKI]
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