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http://www.at.ford.com/news/cn/Pages/2015ttc.aspx

DEARBORN - Ford F-Series Super Duty reinforces its leadership in the heavy-duty pickup truck market with engine and chassis upgrades for 2015 that together deliver best-in-class horsepower, torque and towing capacity.

•Second-generation 6.7-liter Power Stroke® V8 turbo diesel boosts horsepower to a class-leading 440 horsepower; torque to class-leading 860 lb.-ft. for all models

•F-450 chassis upgrades raise maximum gooseneck trailer towing capacity to class-leading 31,200 pounds, fifth wheel towing capacity to class-leading 26,500 pounds, and gross combined weight rating to a class-leading 40,000 pounds

•F-350 available with maximum towing package that increases fifth-wheel/gooseneck trailer towing capacity to 26,500 pounds, and raises the gross combined weight rating to 35,000 pounds


The 2015 Super Duty achieves best-in-class towing performance with a second-generation 6.7-liter Power Stroke V8 turbo diesel engine that was further developed to provide more power, torque and efficiency.

“The 6.7-liter Power Stroke was already a stout engine,” said Robert Fascetti, Ford vice president powertrain engineering. “The improvements we’ve made essentially give Super Duty customers an engine designed for our larger F-650 and F-750 trucks. They may not realize how tough this engine really is.”

Key innovations on the 6.7-liter Power Stroke V8 turbo diesel are its compacted graphite iron engine block and reverse-flow layout. This segment-exclusive design places the exhaust inside the engine’s V-shape, with while the air intake positioned on the outside resulting in a variety of advancements:

•Shorter airflow from the exhaust system to the new, larger turbocharger sitting between the engine’s cylinder banks improves turbo responsiveness – key to providing torque quickly to truck customers when they need it most

•Positioning the turbo inside the engine’s valley helps isolate the engine’s hottest temperatures, improving performance and efficiency, while also reducing noise, vibration and harshness to improve driver comfort
 

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Disclaimer: yeah, the subject title word in all caps may not be entirely true, but try fitting what Super Duty trucks are ‘Best-In-Class' list in that space. No can do.
King for a reason. I just wish I had the need for one myself. And if you have not driven one because you are not interested in trucks, you really need to arrange it and see what all the fuss is about. It’s just so strange having so much mass that not only accelerates so strong, but in fact stops so hard. It’s freakish almost.

Nice job Ford, keeping the best, the best.
 

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I actually thought it would have 475+hp/ 900tq. The tq number is only 10 more than the Ram, all be it does have much more HP, but with such a close tq advantage expect ram to do a "reflash" that gives it the Tq crown again.
 

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When the numbers are this close, peak torque means far less than average torque (area under the curve), delivery, etc. The Ford design and engineered Diesel engine manages that I believe, but again, it is how it matches to the rest of the drivetrain system (gear span, converter, final drive, etc.), and Ford competes head on there as well.
 
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