Ford rolled out details today on an all new V8 diesel engine for their F-Series Super Duty trucks to replace the Navistar sourced engines it currently offers. Though Ford has sourced the heavy duty diesels from Navistar for decades, the relationship soured in the past ten years amid lots of engine problems, lawsuits, and bad karma between the two companies.
Ford decided to cut the cord and has developed an all new 6.7 turbocharged V8 diesel on their own to be built in Ford’s own plants. Not only did they decide to go it alone, they have come up with a groundbreaking new power plant that has many firsts in technology and promises to deliver better economy, power, and durability than anything that has come before it.
The new Powerstroke engine uses compacted graphite iron (CGI) in the engine block for reduced weight and maximum strength. A unique inboard exhaust and outboard intake architecture reduces overall exhaust system volume. Ford says this leads to better throttle response, reduced heat transfer to the engine compartment and improves NVH (noise, vibration, harshness).
Another first is a single-sequential turbocharger that features an industry-first double-sided compressor wheel mounted on a single shaft. This turbocharger design allows the single unit to deliver the benefits of a twin-turbocharger system in a smaller, more efficient package, combining the benefits of a small turbocharger (faster response) and a large turbocharger (ability to compress and force more air into the engine for more power) in one unit.
Fuel is delivered through a high-pressure Bosch fuel system injects fuel at up to 30,000 psi. The system delivers up to five injection events per cylinder per cycle using eight-hole piezo injectors to spray fuel into the piston bowl. The new 6.7 Powerstroke diesel is compatible up to B20 fuel, allowing greener fueling options of up to 20 percent biodiesel and 80 percent petroleum diesel.
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2011 Ford 6.7 Power Stroke Diesel Unveiled at DieselDig
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