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Ford Shelby GT350 Mustang is a lean, mean, Z/28-fighting machine [w/video]

If there's one thing you can count on, it's that the renewed rivalry between the Ford Mustang and Chevrolet Camaro will never, ever cease. For every version of Ford's pony car, there's an equally potent Chevrolet. And so with the debut of the Camaro Z/28 earlier this year, Ford has responded with a track-focused 'Stang of its own, resurrecting the Shelby GT350 name.
It looks to be a fine piece of work, this Mustang, with power coming from a naturally aspirated 5.2-liter V8 that will produce "more than 500 horsepower" and "above 400" pound-feet of torque. That grunt runs to the rear wheels via a six-speed manual transmission, and a Torsen limited-slip differential keeps everything in line.
But that's hardly the most impressive piece of the GT350 puzzle. Ford has increased the Mustang GT's chassis stiffness for duty here in the Shelby, and the coupe employs MagneRide damping which automatically adjusts based on road conditions and driver inputs. It's a first both for the Blue Oval and for the segment. And speaking of firsts, the GT350 uses a flat-plane crankshaft - something Ford has never included in a production V8 before.

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!"

Chip Ganassi Racing switches to the Ford EcoBoost-powered Riley Daytona Prototype

Chip Ganassi Racing with Felix Sabates (CGRFS) announced yesterday at Ford's SEMA press conference that it will field a Ford-Riley Daytona Prototype with the 3.5-liter EcoBoost V6 in the 2014 United SportsCar Championship (USCC). CGRFS is the second team to commit to the new Ford-Riley car, behind Michael Shank Racing (which has already used the racecar to break a 26-year-old top-speed record at Daytona International Speedway).
"Over the last 10 seasons we have been able to experience a great deal of success in Grand-Am," Chip Ganassi says, "and now with the dawn of the new United SportsCar Championship we feel that Ford power will be a key ingredient to writing the next chapter of our sports car program."
In the last Grand-Am season, CGRFS raced a BMW-Riley Daytona Prototype. The team has won seven Daytona Prototype championships, all in the past ten years. Scott Pruett and Memo Rojas return as the team's prototype co-drivers, and will attend their maiden race in the Ford-Riley at the Rolex 24 at Daytona in January.