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2011 Ford F-250 Super Duty King Ranch Crew Cab 4x4 Diesel - Short Take Road Test ...We pit 735 lb-ft of torque against our test equipment and a little bit of towing.
Car and Driver


BY JON YANCA, PHOTOGRAPHY BY JON YANCA AND PATRICK M. HOEY
July 2010
In the heavy-duty truck world, both manufacturers and owners live by one rule: bigger is better. That’s how we’ve arrived at trucks with four-ton curb weights, three-ton payload capacities, and 12-ton towing capabilities. But you can’t haul that kind of mass without some serious firepower, and the diesel powertrains from GM, Ford, and Dodge have started an all-out torque war in the Motor City.

Dearborn’s newest piece of artillery in this battle is the all-new, Ford-designed and -built, 6.7-liter Power Stroke diesel V-8, available in the redesigned 2011 F-series Super Duty lineup...

...Ditching the old cast-iron block, engineers opted to use a new compacted graphite iron material to save weight. They also reversed the normal intake and exhaust flow by essentially flipping the aluminum heads around. Air now enters the engine on the outsides of the heads, and the exhaust manifolds are in the engine valley, joined by a single turbocharger.

The end result of the new tech is an impressive 390 hp at 2800 rpm and an asphalt-destroying 735 lb-ft of torque—delivered from just 1600 rpm...

Lexus Quiet? No, Really

The diesel is remarkably quiet. Hardly any clatter or turbo noise is audible, and the interior (in beautiful King Ranch spec here) is actually quieter than the last Lexus we tested. At wide-open acceleration the Ford measured 69 dB, five less than a Lexus ES350; and even cruising at 70 mph, the F-250 is a hushed 66 dB compared to the ES350’s 69...



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  3. 2011 Ford F-250 / F-350 / F-450 Super Duty – First Drive Review
 

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Re: 2011 Ford F-250 Super Duty King Ranch Crew Cab 4×4 Diesel – Short Take / Long Tit

Now if they come out with a King Ranch version of the F150 Raptor Super Crew, I'd retire early and build a cabin somewhere off the map.
 
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