2004 Ford Expedition Xlt on 2040-cars

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Diesel Power finds the ultimate modified oil-burner

For nine years, Diesel Power magazine has run the Diesel Power Challenge, this year's grindfest being "a week-long torture test that features seven events, nine trucks, 8,000 horsepower, and nearly 15,000 pound-feet of torque." The road to being crowned "the most powerful truck" starts with a dyno run, and then continues through the completion of a CDL-style obstacle course, an eighth-of-a-mile drag race while towing a 10,000-pound trailer, a quarter-mile drag race without a trailer, a fuel economy test in the mountains and finally a sled-pulling test through a 300-foot-long packed-mud pit.
What kind of trucks get into such a fight? Last year's winner, for instance - who upgraded his truck this year to prove he didn't "luck into the win" - drives a 2008 Ford F-250 Super Duty with a 6.4-liter Power Stroke V8 upgraded with a custom intake, Elite Diesel triple turbos and a two-stage nitrous system. Another competitor has a 2005 Dodge Ram 2500 powered by a 5.9-liter Cummins inline-six, upgraded with Garrett turbos, dual-stage nitrous, a seven-inch exhaust stack and twin fans built into the bed to cool the Sun Coast Omega transmission. The numbers on that truck: 1,255 horsepower, and 2,063 pound-feet of torque at the wheels. Naturally, as the image above might suggest, things don't always end well.
You'll find all five videos covering this years challenge below. A scene in the dyno video sums it all up perfectly: a competitor leaves his nitrous on too long and the crew is treated to some ominous poppings, he leans out the window, throws both hands up and shouts, "Amer'ca!"

Submit your questions for Autoblog Podcast #317 LIVE!

We record Autoblog Podcast #317 tonight, and you can drop us your questions and comments regarding the rest of the week's news via our Q&A module below. Subscribe to the Autoblog Podcast in iTunes if you haven't already done so, and if you want to take it all in live, tune in to our UStream (audio only) channel at 10:00 PM Eastern tonight.
Discussion Topics for Autoblog Podcast Episode #317
Mitsubishi Mirage

STUDY: Ford owns brand loyalty in 2009; Scorned Saturn, Pontiac buyers will look outside of GM

Ford buyers appear to love their cars more than customers of any other automotive brand, returning back to the American automaker when it comes time to purchase their next vehicle. According to a study by Experian Automotive, six of the top 10 vehicles for customer brand loyalty wear badges from the Blue Oval. That includes the Ford Fusion (62.4 percent), Ford Edge (57.9 percent), Ford Five Hundred/Taurus (56 percent), Ford Freestyle (51.9 percent), Ford Escape (49.4 percent) and the Ford Focus (47.57 percent).
Other vehicles making up the top 10 include the Toyota Prius (52 percent), Chevy Impala (51.7 percent), Toyota Camry (47.8 percent) and Toyota Corolla (47.56 percent). This brings up an interesting question: With the closing of automotive brands like Saturn and Pontiac, where are those buyers to turn for their next automotive purchase?
Apparently, not back to General Motors. According to Experian, Pontiac owners are most likely to look to the Ford lineup for their next car or truck and Saturn shoppers will switch to Toyota or Honda - not particularly surprising given that Saturn was meant to compete with import brands. Experian predicts that GM's overall market share will fall from 20 percent to about 17.5 percent, with most of the slack being picked up by Ford, Honda and Toyota.