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Ford 2011 F-series Super Duty improves power


Also read my 2015 Ford Super Duty review

  • Ford 2011 F-Series Super Duty improves power
  • The 6.7-liter Power Stroke® V8 turbocharged
    diesel is now rated at best-in-class 800
    lb.-ft. of torque and 400 horsepower, an
    increase of 65 lb.-ft. of torque and 10
    horsepower. Current 2011 Ford F-Series
    Super Duty diesel owners can get the
    increased performance through a free
    dealer-installed software upgrade to the
    truck’s powertrain control module.
  • Super Duty reclaims F-350 towing and payload
    leadership vs. Chevrolet Silverado 3500.
    When it comes to capability, Super Duty
    offers uncompromised choice – whether
    it’s F-250, F-350, F-450 or F-550
  • The 6.7-liter Super Duty diesel now has 20
    percent better fuel economy compared
    with the outgoing engine based on Ford
    drive-cycle tests of comparably equipped
    2011 Ford and 2010 Ford models

TRAVERSE CITY, Mich., Aug. 3, 2010 – Ford Motor
Company will begin production this week of
the most powerful diesel engine ever
installed in a heavy-duty pickup, Barb
Samardzich, vice president of powertrain
engineering, announced today at an
international auto industry conference.

Introduced in April 2010, the 6.7-liter Power Stroke V8
turbocharged diesel powering the 2011 Ford
F-Series Super Duty will be upgraded to
best-in-class 800 lb.-ft. of torque and 400
horsepower, Samardzich said at the Center
for Automotive Research’s annual Management
Briefing Seminars.

“These numbers are impressive, yes, but that is not
why they matter,” Samardzich said. “These
numbers matter because our customers say
they do. The higher torque means that fleet
operators, such as Florida Power & Light,
can plow through deep swamps and get to
downed power lines faster and more
confidently. It means that oil and gas crews
in the Northwest can tow up an 8,000-foot
grade maintaining a steady speed and using
less fuel.”

In an industry-first customer loyalty program,
Ford will provide the power upgrades free of
charge to all current owners of a 2011 Super
Duty diesel pickup. Customers will receive
letters explaining the procedure, a
30-minute software adjustment to the truck’s
powertrain control module, and inviting them
to visit their dealerships for the upgrade.

The upgrade program will begin by Aug. 31 and continue
for the next 12 months. The 2011 Super Duty
diesel pickups in dealer inventory will
receive the upgrade as well.

A rigorous testing protocol that included computer,
laboratory and on-road validation ensured
250,000-mile durability in the new Power
Stroke’s components and systems. This strict
testing opened the door for the 2011 Super
Duty’s increased capability.

“We know that durability and reliability is uppermost in
the minds of our Super Duty customers, along
with torque and horsepower, so we took a
conservative approach that ensured that the
new Power Stroke would be absolutely
bulletproof while delivering significantly
improved power,” said Chris Brewer, chief
engineer of the 2011 Super Duty.

New Ford design and engineering methods enable
strong platform from which to build

The new Power Stroke is a “clean sheet” that
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 6.7-liter Power Stroke
V8 turbocharged diesel engine include:

  • First use of a compacted graphite iron (CGI)
    engine block in a Super Duty-class
    vehicle in North America; stronger than
    cast iron, Ford has successfully used
    CGI 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 horsepower.
  • Unique inboard exhaust and outboard intake
    architecture, an automotive-industry
    first for a modern production diesel
    engine, reduces overall exhaust system
    volume, which leads to better throttle
    response for the customer; additionally,
    reduced exhaust system surface area
    minimizes heat transfer to the engine
    compartment and improves NVH (noise,
    vibration, harshness) performance.
  • The new engine architecture enables easier
    service work for all major engine
    components, potentially reducing
    downtime. On turbocharger service, for
    example, the body/cab no longer has to
    be removed from the frame to access the
    turbo; also, the high-pressure fuel
    pump, EGR (exhaust gas recirculation)
    components and thermostats are directly
    accessible from the front of the
  • 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. This turbocharger design
    allows the single unit to deliver the
    benefits of a twin-turbocharger system
    in a smaller, more efficient package,
    combining the advantages 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; also, six head bolts,
    instead of four as found on other
    engines, help improve sealing and
    maintain cylinder integrity.
  • Compatible up to B20 fuel, allowing
    greener fueling options of up to 20
    percent biodiesel and 80 percent
    petroleum diesel.

The new Super Duty debuted not only with a new diesel
engine, but with a new heavy-duty TorqShift™
six-speed automatic transmission. As
experience was gained building the new
powertrain, engineers continued to test
components, check data and seek

More power and better fuel economy, too

Fuel economy is expected to improve at least
another 2 percent, making the 2011 F-Series
Super Duty 6.7-liter Power Stroke diesel a
full 20 percent more fuel efficient than the
2010 model. The improved torque and
horsepower, for example, means a customer
can get to a higher gear faster and stay in
it longer, both of which aid fuel economy.

“Our testing procedure proved to us we could push the
hardware a little harder,” said Brewer.
“Again, we wanted to make absolutely sure
our customers received an engine that was
outstanding in all the key attributes:
durability, reliability, power, performance
and fuel economy.”

The increased performance will be evident in situations
such as improved passing capability on the
highway or when towing a heavy load up a
steep grade. When towing, the increased
engine torque will let the vehicle stay in
high gear more often, reducing transmission
shifting frequency and keeping engine speed
low for better fuel economy and lower
Best-in-class capability reclaimed for F-350
models going forward

Going forward, the F-350 dual-rear-wheel (DRW)
model will add vehicle upgrades to bring
maximum payload and maximum fifth-wheel
towing to best-in-class levels.
Higher-strength steel in the frame will
boost the payload and towing ratings as

  • F-350 DRW maximum payload to 7,070 pounds,
    from 6,520 pounds
  • F-350 DRW maximum fifth-wheel towing to 22,600
    pounds, from 21,600 pounds

“Customers of the F-350 dual-rear-wheel configuration push
their trucks to the limit and are the
ultimate payload and towing users,” said
Brewer. “And like with the diesel upgrades,
we’ve found we can push the Super Duty even
harder and bump up the ratings. The fact we
have more torque and horsepower makes the
job that much easier.”



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