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2011 Ford F-Series Super Duty gets 6.7L Scorpion V8
Posted By The Editor On August 31, 2009 @ 2:06 pm In Ford News,News | No Comments
A new era in Ford diesel technology arrives with the Ford-engineered, Ford-tested and Ford-manufactured 6.7L Power Stroke V8 turbocharged diesel engine. Debuting in the next-generation 2011 Ford F-Series Super Duty truck, the new diesel engine will deliver significant improvements in torque, horsepower and fuel economy while adding more fueling flexibility and easily meeting stringent new emissions requirements.
The new diesel 6.7L engine, code-named Scorpion, also shares the Super Duty’s legendary reliability and durability while delivering best-in-class towing and payload.
The diesel engine team made improvements and changes throughout the engine architecture to deliver on aggressive horsepower, torque, emissions and fuel economy targets. The 6.7L Power Stroke uses an “inboard exhaust” architecture, an automotive-industry first for a modern production diesel engine. It combines the best of proven technology with new, patented approaches backed by an extensive laboratory and real-world testing regimen to assure customer satisfaction.
Benefits of the new 6.7Lr Power Stroke V8 turbocharged diesel engine include:
One of the obvious visual differences in the new 6.7L Power Stroke V8 turbocharged diesel engine is the layout of the pipes. The exhaust manifolds, for example, reside in the valley of the engine instead of outboard, while the intake is outboard of the engine. The cylinder heads are essentially flipped around in comparison with previous V-8 engine architectures.
This unique layout – an automotive-industry first for a modern production diesel engine – has several advantages. First, the overall exhaust system volume is reduced, meaning air can be fed to the single turbocharger quicker for faster spool up and reduced lag, resulting in improved throttle response for the customer. The improved packaging also places components that need to be in cooler air away from hot exhaust pipes, resulting in better thermal management and, by extension, better fuel economy.
The single-sequential turbocharger – an industry first – is key to the new diesel engine’s performance. The unit has two compressor wheels driven off one turbine impeller. This approach combines the benefits of a single inertia wheel – faster response without lag – with the thrust of a larger turbocharger, with the ability to force more compressed air into the engine for more power. The engine’s smaller exhaust volume combined with a corresponding smaller intake volume and smaller turbocharger creates a system that is quicker to boost, more responsive and better able to deliver horsepower and torque, especially at the low end, when the customer demands it.
The turbocharger includes an advanced variable nozzle turbine, which enables variable vane pitch angles, driving optimal turbine power to achieve optimal boosting levels for all operating conditions. The single shaft ensures the transition is seamless. The unit – compact in dimensions – is uniquely center-mounted on a patented pedestal low in the back of the valley instead of hung off the block, which helps balance the system and aids NVH characteristics.
Customers of the 6.7L Power Stroke turbocharged diesel engine will notice a quieter, more refined sound. Improvements to the combustion system, structural integrity of the compacted graphite iron block and the single turbocharger mounted to the engine block account for many of the NVH improvements.
The new 6.7L Power Stroke V8 turbocharged diesel engine seems to be the perfect complement to the 2011 Ford Super Duty, delivering both capability and reliability.
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