2005 Ford Explorer Sport Trac Xlt Sport Utility 4-door 4.0l 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!"

Focus STs for SEMA include Lotus and Gulf liveries, rally-fied police car

Ford, as we mentioned on Saturday, is pulling out all the stops for November's SEMA show, bringing 57 vehicles to the Las Vegas event. Ford will be staggering the release of its SEMA flotilla, though, so expect to hear a lot about the new additions to the fleet in the weeks to come. We already showed you the Fiesta, Fiesta ST and Mustang models that made up the first batch of SEMA cars. Next up, we have a quartet of modded Focus STs joining Ford's SEMA roster.
Our first Focus ST (pictured above) sports the legendary livery of Gulf Racing. The orange-on-blue scheme, which Ford helped make famous at the 24 Hours of Le Mans, has been updated for 2013, with a more vibrant blue. This ST was built by Universal Technical Institute, while the exterior was done by Neil Tjin of Tjin Edition. Side exhausts, a Vortech supercharger and a Motiv Concepts high-flow cat allow the ST to breathe a bit easier, while Forgestar wheels contrast well with the iconic paint scheme.
Focus ST number two has been done-up by PM Lifestyle and is inspired by "Southern California car culture." Sporting a sleek, pale blue paint job, there's also no shortage of carbon fiber on the car's exterior. The 2.0-liter, turbocharged, four-cylinder engine has been massaged by the likes of Banks Power, COBB Tuning and Ford Racing, while the suspension is wearing a shiny, new set of coilovers and sway bars. The meaty brakes, tucked behind 19-inch, Rotiform wheels, come from Wilwood, while the cabin has been fitted with a pair of Sparco Chrono seats and five-point, Schroth harnesses.

NHTSA closes investigations into Ford Taurus, Hyundai Santa Fe

Ford and Hyundai are out from under the scrutinizing eyes of the National Highway Traffic Safety Administration after the government agency said it was closing investigations against both automakers over vehicle safety concerns.
Ford was being investigated for reported damaged speed control cables on Ford Taurus (shown above) and Mercury Sable models, both built between 2000 and 2003. Vehicles with the company's Duratec engines allegedly failed to allow owners to brake as expected. Owners lodged 100 complaints and were involved in five accidents, according to NHTSA records. The American automaker responded to the reports, and on June 21 of this year, said that it would inspect and repair all affected vehicles, regardless of the mileage.
Hyundai was under investigation for a reported loose fastener on the steering shaft of its 2011 Santa Fe (shown in the gallery below). After NHTSA launched its inquiry, the Korean automaker responded with its own investigation that yielded four affected vehicles. Following the inspection of 680 vehicles at its assembly plant, Hyundai said the issue was due to employee error and that no further defects have been found.