2005 Gmc Sierra 1500 Sle Extended Cab Pickup 4-door 5.3l 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!"

2017 GMC Model Year Preview and Updates

GM's 'professional grade' truck and SUV specialist continues to deliver its utility-with-luxury vibe, optimized in the all-new Acadia, relatively new Canyon and continual updates to its Sierra pickups and Yukon SUVs. GMC ACADIA: An all-new Acadia - pictured above - is aimed at the heart of the midsize segment. In an unusual step, the GMC product team downsized the Acadia, dropping 700 pounds from the earlier platform in the process. The new crossover is available in four trims – SL, SLE, SLT and Denali – and an offroad-oriented All Terrain package is available on both SLE and SLT when equipped with all-wheel drive. For young families, GMC introduces the industry-first Rear Seat Reminder, a prompt which will remind the driver to check the rear seat area before leaving and locking the vehicle. CANYON: The midsize pickup introduces two new variants for 2017. The upmarket Denali adds swag – unique chrome grille, 20-inch aluminum wheels and various interior upgrades – to its swagger, while the All Terrain X provides the adventure traveler with all-terrain tires, off-road suspension, Hill Descent Control and all-weather floor liners. SIERRA: The Sierra's maximum trailer tow rating of 12,500 pounds is the best in the full-size, crew cab segment. New features include Teen Driver, active aero shutters on all models and available tri-mode power steps. Also, GMC adds two new colors to the palette: Dark Slate Metallic and Pepperdust Metallic. SIERRA HD: The big news is the addition of the All Terrain X to GMC's heavy duty lineup. With an offroad-specific footprint provided by its 18-inch aluminum wheels and Goodyear Duratrac tires, ground clearance is enhanced by the Z71 off-road suspension, and an Eaton automatic locking differential keeps you rolling. TERRAIN: While the 2018 Terrain awaits its showroom debut, the 2017 Terrain's new Nightfall edition darkens the Terrain vibe. The one new color for 2017 fails to hit a brighter note; it's Graphite Gray Metallic. YUKON/YUKON XL: Perhaps the ultimate Uber capsule, the big/bigger SUV enters 2017 with a host of refinements, including GM's Teen Driver feature, upgrades to rear seat entertainment, available low speed forward automatic braking, active aero shutters for improved efficiency and one new color: Dark Sapphire Blue Metallic. If you're looking to maximize your visual presence, consider the SLT Premium Edition, which ups the chrome content well beyond the commercial minimums.

Sunday Drive: Spying an automotive future of performance

I spy, with my little eye ... the future of the automotive world here in the United States. That pretty much sums up this week's Sunday Drive, in which we pull out the most popular stories on Autoblog of the previous week and try to draw some sort of conclusion as to what binds them all together. This week, it's spy shots, starting with one of the biggest and baddest muscle cars the world has ever seen: the Dodge Challenger Hellcat. The Hellish coupe gets a new hood for 2019 with dual scoops, but that's about the only meaningful change for the new model year. No matter. As long as it's packing 700-plus horsepower under those two hood scoops, all will be right with the world. Moving on, we take keep the performance angle but move it from the street to the dirt with a new version of the Chevy Colorado ZR2 that we think is probably called the Bison. We think it'll keep the high-tech suspension bits of the regular ZR2, but add expedition gear that may include a snorkel and a winch. Which, if true, is pretty dang cool. Keeping the truck theme is the 2019 GMC Sierra. There's nothing particularly noteworthy about the trim level in which the truck was spied, and that's what makes this specific example interesting. Base-model trucks almost never get much attention, but they sell in droves to workers who need an honest-to-goodness truck for work or play and don't care about bells, whistles, or massive chrome badges. And finally we have the 2018 Jeep Wrangler, which is on fire on the sales floor right now. But those are all V6-powered Wranglers flying off the showroom floor. Soon, a turbocharged four-cylinder engine option will become available, and now we know that it will return up to 23 miles per gallon in the city and 25 on the highway. That makes it the most fuel efficient Wrangler that Jeep has ever sold. As always, stay tuned to Autoblog this week for all the automotive news that's fit to publish. 2019 Dodge Challenger Hellcat with twin-scoop hood spied with no camouflage Chevy Colorado ZR2 Bison caught testing 2019 GMC Sierra 1500 spied in base trim level 2018 Jeep Wrangler four-cylinder fuel economy revealed Spy Photos Chevrolet Dodge GMC Jeep Truck Coupe SUV Off-Road Vehicles Performance dodge challenger srt hellcat sunday drive