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Ford's direct ethanol injected Bobcat engine not based on new 5.0L V8

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Filed under: Technology, Ford

ford-tt-v8.jpgLast year we heard about a very interesting experimental engine that Ford was working on called the "Bobcat." The engine in question is a 5.0-liter V8 that features turbocharging and two independent fuel injection systems. The primary system utilizes traditional port injection to deliver gasoline to the cylinders, while the secondary system injects E85 directly into the combustion chambers. The idea was to create an engine that could match a diesel's power and torque figures for less money.

Now that Ford has officially revealed the new 5.0-liter V8 for the 2011 Mustang GT, we began wondering whether the new engine was the basis for the Bobcat. We had a chance to chat with Mike Harrison, the chief engineer on the 5.0-liter and the 6.2-liter truck V8, who told us that the 5.0-liter Bobcat was actually derived from the old 5.4-liter V8 currently used in the F-150 and the Shelby GT500.

For the Bobcat experimental engine, the longer-stroked 5.4 was used in combination with a smaller bore that provided thicker cylinder walls needed to withstand the high internal pressures of the boosted 750 pound-foot engine. According to Harrison, the Bobcat was part of a Department of Energy funded research project and there are no current plans for a production engine based on the technology. He also tells us that the extra cost of the dual injection systems and more robust block and heads negates much of the savings from not needing a diesel after-treatment system.

[source: Ford]

Ford's direct ethanol injected Bobcat engine not based on new 5.0L V8 originally appeared on Autoblog on Thu, 14 Jan 2010 18:31:00 EST. Please see our terms for use of feeds.

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