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Report: Ford may increase 6.7-liter Power Stroke numbers to beat GM


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Report: Ford may increase 6.7-liter Power Stroke numbers to beat GM

03/23/2010, 7:54 PMBY MARK KLEIS

Ford officially revealed the power numbers for its all-new, in-house designed 6.7-liter turbocharged diesel in late February. Ford announced that the new Power Stroke diesel would produce 390 horsepower and 735 lb-ft of torque, which at the time, was best-in-class. Now that GM has announced the numbers for its revised 6.6-liter Duramax – coming in at 397 horsepower and 765 lb-ft of torque – Ford may be back to the drawing for a quick fix to regain their number one spot.

For years Ford has prided itself as a leader in the truck segment for America, often carrying the segment leading payload and towing numbers, despite trailing in power figures for most of the last few decades.

According to sources that spoke with PickupTrucks.com, it seems Ford is no longer settling for just best-in-class capability, as it wants to boast the best-in-class power and torque, too. It’s common knowledge that diesel engines often respond well to custom tuning, as well as modifications to intake and exhaust systems for “cheap” added power. Usually the re-tuning of the engine’s computer is left to aftermarket companies that sell either custom or “canned” tunes that promise bumps in power and fuel economy, but this time around it might be Ford playing a different tune in an effort to take the top spot for power.

As PickupTrucks.com points out, GM’s diesel offering is based on an aging and potentially limited 6.6-liter Duramax design, compared to Ford’s fresh design with its 2011 6.7-liter Power Stroke diesel. Because GM has already managed to wrench out a significant bump in power and torque from its Duramax, Ford may be able to make some minor tweaks that could result in a bump to over 400 horsepower and more than 775 lb-ft of torque without affecting the durability of its new diesel, and without worry that GM will follow suit.

Before Ford cranks up the power on its diesel it must first consider the corresponding changes to emissions and fuel economy for its super Duty trucks. EPA regulations have grown increasingly stringent, leaving very little room for changes that will result in increased emissions. Although Super Duty trucks do not have to report EPA mileage numbers, customers will certainly take note of the real-world fuel economy when reaching for their pocket books. Ford’s previous diesel offering, a 6.4-liter Power Stroke, was known for poor economy compared to the rest of the class.

Should Ford makes power changes, expect them to come in the form of a re-tuned computer which will not require any physical changes to the trucks, allowing the trucks which were already produced to be re-programmed at the dealers to reflect the potential bump in power.



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Rumormill: Ford's Power Stroke diesel getting power increase to beat GM Duramax

Volatile gas prices and increasingly stiff emissions standards were supposed to kill the auto industry's horsepower wars, or so we thought feared. Recent news out of the General Motors and Ford camps appears to prove otherwise. The second act in the battle for power supremacy took a turn for the better last November when The Blue Oval announced that the 2011 Mustang would receive a 305-horsepower 3.7-liter V6 powertrain; a hair more punch than the 2010 Chevrolet Camaro V6's 304-hp output. But what's one extra horse between neighbors, right?

The General struck back a couple weeks ago when it announced power figures for the 6.6-liter Duramax diesel available in the 2011 Chevrolet Silverado and GMC Sierra heavy duty pickups. The new Duramax pumps out 397 hp and 765 lb-ft of torque, besting Ford's 6.7-liter Power Stroke diesel that was announced just a few weeks earlier by seven hp and 30 lb-ft. Ford likely isn't going to take this Super Duty setback lying down, and sources tell our friends over at PickupTrucks.com that the company Henry built is looking to regain the power lead within a year.

PickupTrucks.com reports that the new 6.7-liter Power Stroke diesel engine is an all-new architecture that likely has plenty of room for more punch, while the 6.6-liter Duramax is an older engine with less room for improvement, so the seesaw battle may not last too long. And sources say Ford engineers could crank the mill beyond 400 ponies and 775 lb-ft; or enough power to tow Florida closer to Texas.

But for now GM's new fullsize pickups hold the power figure crown while Ford engineers look on with malice in their micrometers. At least Ford has that one pony lead over the Camaro, right? Rumor has it that the Bowtie brand is working on that one, too.



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