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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!"

GM reportedly recalling select 2014 Silverado, Sierra pickups over airbag issue

General Motors is recalling 843 2014 Chevrolet Silverado and GMC Sierra Crew Cab pickups, due to a fault with the vehicle's airbags. According to GM, the airbags may not inflate properly in the event of a crash. There haven't been any crashes or injuries associated with this recall, which is always good. Naturally, repairs will be free of charge, and GM will begin contacting affected owners soon.
GM has a lot hanging on the 2014 Chevrolet Silverado and GMC Sierra. Not only is it banking over $12,000 per vehicle on these trucks, as reported by Automotive News, but GM is counting on the Sierra and Silverado to take the fight to cross-town rivals Ford and Ram. The F-150 and Ram 1500 have been on a tear over the past few years, with fresh updates, advanced powertrains, and plenty of solid press while the GM trucks have been waiting for the 2014-model-year upgrades.
It's still entirely too early to judge the Sierra and Silverado, particularly as those 843 recalled trucks make up barely two percent of the over 40,000 units moved so far. But, as AN rightly states, these trucks are the most important vehicles to come out of GM since bankruptcy, with about 60 percent of global profits relating to pickups and SUVs. Starting an introduction of such a big product with a recall, however small, is not the preferred way to do things.

2014 GMC Sierra 4.3L V6 to offer segment-best 305 LB-FT

General Motors has released more information on the 4.3-liter V6 available in the 2014 GMC Sierra. The engine will serve up 285 horsepower and 305 pound-feet of torque, with a six-speed automatic transmission, and giving the V6 Sierra a maximum tow rating of 7,200 pounds in regular cab, short bed four-wheel drive configuration. GM claims that figure is 500 pounds more than the equivalent Ford F-150 equipped with a 3.7-liter V6, and 700 pounds more than the Ram 1500 with its 3.6-liter V6. Buyers can expect to see the 2014 GMC Sierra with the 4.3-liter engine start at $25,085 including destination.
While the engine does deliver more torque than either of its main competitors, it falls short on the horsepower front. The 3.7-liter V6 in the F-150 develops 302 hp while the 3.6-liter V6 in the Ram 1500 yields 305 hp. GM says fuel economy estimates for its newest entry will land later this year. Check out the full press release below for more information.