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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!"

Dodge to reveal Hellcat-powered Challenger in Detroit?

On top of all the other performance car debuts slated for next week's Detroit Auto Show, we might be able to add one more to the list - the new, supercharged Hellcat V8 from Chrysler. According to new reports, the rumored 640-horsepower mill is likely to cross the Motor City stage in the engine bay of a Dodge Challenger.
As AllPar points out, though, there may be more news than just the fire-breathing engine. While we've seen spy photos of the Hellcat testing under the hood of the current Challenger, there's a very fair chance that it won't arrive until the muscle car is refreshed later this year. The question now is whether that refresh will be shown off alongside the new engine in Detroit, or if it'll be saved, perhaps for the New York Auto Show.
Other details dug up by AllPar include potential transmissions for the supercharged engine - the Mopar-minded site is expecting an eight-speed automatic or a Tremec six-speed manual. Prices, meanwhile, could be in the same elevated range as the Chevrolet Camaro Z/28, at $70,000 to $80,000.

Dodge Viper returning to Le Mans this year?

If you were among the fans disappointed by Chrysler's recent decision to end the Dodge Viper's racing program, we may have some good news for you, as the racing outfit behind the campaign is reportedly working to bring the American supercars back to Le Mans this year. That racing outfit is Riley Technologies, a constructor perhaps best known for its Daytona Prototypes, but it has also prepared its share of GT racers, too. Chrysler charged Riley with leading its racing program for the new Viper GTS-R, campaigned it in the United SportsCar Championship and the 24 Hours of Le Mans. Auburn Hills made the unfortunate decision back in March to pull its Vipers out of Le Mans, and then in October to withdraw from the US series, as well, thereby effectively ending the program altogether. Disappointed though it surely was, Riley remains defiant. The North Carolina-based company is planning on taking the existing Vipers back to Le Mans on its own, with or without factory support. The Viper has, after all, proven a capable machine, having taken both the drivers' and teams' titles in the United SportsCar Championship this past season. "With Le Mans, every driver and every manufacturer needs to have their first trip there, and it isn't always what you want it to be, but we did show reliability and did have some pace," Bill Riley told Racer.com. "Since then, we've worked hard on the cars, they're now strong, front-running cars in the US, and we're working with the ACO on the BoP to make sure the cars are strong at Le Mans. They're super-reliable and fast, and we'd expect to be right in the mix with the other cars." Riley has kept the existing support staff in place, and once it secures its driver lineup and sponsors, chances look good that it could represent America well at Le Mans this year in either the GTE Pro or GTE Am class. Its predecessor did, after all, complete a three-year winning streak that saw it dominate the GTS class right up until its withdrawal in 2000. News Source: Racer.comImage Credit: FCA Motorsports Dodge Coupe Racing Vehicles