Auto Car | 2011 Ford F-Series Super Duty | The 2011 Ford F-Series Super Duty is the latest entrant in a violently competitive category. Given the current economic climate, new 2010 emissions regulations for diesel, and certain factions of political correctness, the rivalry between truck brands has never been more challenging. The 2010 Dodge Ram HD recently appeared, while GM will likely soon give us an early look of the 2011 Chevrolet Silverado HD/2011 GMC Sierra HD.
•The 2011 F-Series Super Duty boasts all-new powertrains, led by the Ford-designed, Ford-engineered and Ford-built 6.7-liter Power Stroke® V-8 turbocharged diesel engine, which delivers significantly improved torque and horsepower as well as class-leading fuel economy while maintaining best-in-class towing and payload capability; new engine also has biodiesel compatibility up to B20
•A new 6.2-liter V-8 gasoline engine also is added to the lineup; it also delivers significantly improved torque and horsepower as well as class-leading fuel economy; new gas engine can run on regular-grade gasoline, E85 or any blend in between
•The 2011 F-Series Super Duty boasts all-new powertrains, led by the Ford-designed, Ford-engineered and Ford-built 6.7-liter Power Stroke® V-8 turbocharged diesel engine, which delivers significantly improved torque and horsepower as well as class-leading fuel economy while maintaining best-in-class towing and payload capability; new engine also has biodiesel compatibility up to B20
•A new 6.2-liter V-8 gasoline engine also is added to the lineup; it also delivers significantly improved torque and horsepower as well as class-leading fuel economy; new gas engine can run on regular-grade gasoline, E85 or any blend in between
•An all-new 6R140 heavy-duty TorqShift® six-speed automatic transmission gets the new diesel engine’s low-end torque to the ground faster; the six-speed transmission has full SelectShift™ capability, giving customers the convenience of a manual gearbox
•Available Ford Work Solutions™ plus a new flow-through console with 110-volt inverter, new seats and locking underseat storage add even more productivity in the Super Duty’s role as office on wheels; new 4.2-inch LCD Productivity Screen delivers array of information
•The new 6R140 transmission is available with segment-exclusive Live Drive Power Take Off (PTO) with the new diesel
Ford Super Duty customers expect and demand capability from the best-selling heavy-duty truck in America. For most Super Duty owners, it’s the core asset of their business. Day after day, year after year, it’s expected to deliver results in the most demanding situations. No nonsense. And never any excuses.
The 2011 Super Duty offers the widest array of solutions for the widest array of heavy-duty work truck customers,’ said Chris Brewer, chief engineer. ‘The Super Duty lineup offers a variety of body styles and powertrains, from diesel and gasoline engines, each with a new six-speed transmission, to pickup trucks and chassis cabs, each with the towing and payload capabilities that define Super Duty.’
New diesel and gasoline engines deliver improved torque, horsepower, fuel economy
For 2011, Super Duty features both an all-new diesel and gasoline engine that are mated to a new transmission. The new diesel, the 6.7-liter Power Stroke V-8 turbocharged diesel engine, was designed, engineered and built by a Ford team dedicated solely to delivering this class-leading diesel engine to the next-generation Super Duty to enable continued best-in-class towing and payload.
First use of a compacted graphite iron (CGI) engine block in a Super Duty-class vehicle in North America; CGI is stronger than cast iron, and Ford successfully has used the material in engine blocks in products around the world. The block structure was optimized for reduced weight and maximum strength to meet the demands of higher torque and more horsepower and enable class-leading fuel economy.
•Unique inboard exhaust and outboard intake architecture, an automotive-industry first for a modern production diesel, reduces overall exhaust system volume, which leads to better throttle response; a reduced exhaust system surface area minimizes heat transfer to the engine compartment and improves NVH (noise, vibration and harshness).
•The turbocharger features an industry-first dual-sided compressor wheel that works in a single housing. The unit is uniquely center-mounted on a pedestal low in the back of the valley for improved NVH. The design allows the single unit to deliver the advantages 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.
•The high-pressure fuel system injects fuel at more than 29,000 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 direct-injection system is calibrated and phased for optimum power, fuel efficiency and NVH.
•Aluminum cylinder heads for reduced weight; the mid-deck construction with dual water jackets provides increased strength and optimal cooling; six-head bolts, instead of four as found on other engines, help improve sealing and maintain cylinder integrity even with the higher firing pressures.
•Compatible up to B20 fuel, allowing greener fueling options of up to 20 percent biodiesel and 80 percent petroleum diesel.
‘Developing the new 6.7-liter Power Stroke V-8 turbocharged diesel engine was an awesome endeavor,’ said Adam Gryglak, lead 6.7-liter diesel engineering manager. ‘After all the engineering and testing, we’re confident this engine will ensure the new Super Duty continues its leadership in capability, reliability and productivity.’
The engine and aftertreatment system for the 6.7-liter Power Stroke V-8 turbocharged diesel powertrain ably meets the new, more stringent 2010 federal emissions requirements for nitrogen oxides (NOx), which have to be lowered by approximately 80 percent.
New gasoline engine delivers more torque, horsepower than outgoing model
Ford tapped into a bit of its proud racing heritage to create the new 6.2-liter V-8 gasoline engine, which uses big-bore architecture to produce horsepower and class-leading fuel economy. The V-8’s large bore (102 mm) allows for larger intake and exhaust valves for improved engine breathing, and the short stroke (95 mm) allows higher engine speed for increased horsepower.
Benefits of the new 6.2-liter V-8 gasoline engine include:
•SOHC valvetrain with roller-rocker shafts: The single overhead camshaft (SOHC) per cylinder head design results in a stiff valvetrain that allows optimized camshaft lift profiles and results in great low-speed torque. The roller-rocker shafts allow valve angles to be splayed, resulting in optimized intake and exhaust port layout for better breathing.
•Dual-equal variable cam timing: Intake and exhaust valve opening and closing events are phased at the same time to optimize fuel economy and performance throughout the engine speed range and throttle positions.
•Two spark plugs per cylinder: Due to the large bore size, two spark plugs per cylinder are used to more efficiently burn the fuel-air mixture in the combustion chamber, enabling better fuel economy and increased engine torque. The twin plugs also help the engine maintain a smooth, stable idle.
•Dual knock sensors: A knock sensor on each bank of cylinders of the V-8 engine allows the spark timing of each of the cylinders to be individually optimized real time, throughout the engine speed range. The engine learns the optimum timing via an adaptive algorithm.
•Better engine crankcase ‘breathing’ and efficiency: Significant development work and computer-aided engineering optimized the cylinder block for more efficient airflow in the crankcase as the pistons move up and down in the bores, resulting in improved torque at higher engine speeds. Piston-cooling jets squirt oil on the underside of the pistons to keep the piston crowns cool under extreme operating conditions. The cooling jets also allow for a higher compression ratio for better engine efficiency and faster engine oil warm-up on cold starts, also improving fuel economy.
Ford’s lauded Trailer Sway Control (TSC) system joins the Super Duty lineup, giving those customers segment-first capability. TSC is integrated with AdvanceTrac® with Roll Stability Control™, which now is standard on all single rear wheel (SRW) configurations.
The AdvanceTrac control module uses additional software to monitor the truck’s motion when a trailer is attached. Trailer Sway Control can determine from the yaw motion of the truck if the trailer is swaying and take measures – such as applying precise braking or reducing engine torque – to help reduce the trailer sway.
For further peace of mind, the available integrated trailer brake controller, factory-installed and covered by a Ford limited warranty, offers smoother and safer operation due to its ability to interface with multiple vehicle systems.
Normal braking is proportional to driver brake pressure for smooth brake stops at all speeds. If the vehicle’s Anti-lock Brake System (ABS) is engaged, the special trailer brake kicks in to minimize the potential for trailer wheel lock up. In Super Duty trucks with Trailer Brake Control towing trailers with electric brakes, the Ford system can, during a sway event, also apply brakes to the trailer to help stabilize it.
Source : truckszine.com
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