1971 Chevrolet Cheyenne Pickup Truck 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!"

2016 Chevy Camaro performance figures released

If you want to make a car faster, there are two sure-fire ways to get the job done – add power and/or reduce weight. Chevy has done both for the 2016 Camaro, putting as much as 455 horsepower into its muscle coupe and shaving a few hundred pounds from every trim. That range-topping power comes courtesy of a 6.2-liter V8 engine, and it's enough grunt to push an automatic-equipped Camaro SS to 60 miles per hour in just 4.0 seconds flat (4.3 seconds with a manual) and down the quarter mile in 12.3 seconds at 116 mph (12.5 at 115 for the stick). Not coincidentally, those acceleration specs, at least on paper, put the V8-powered Camaro SS just above the Mustang GT on the muscle-car pecking order. When the road gets twisty, Chevy claims the Camaro SS can generate as much as .97 g on the skidpad. And, thanks in part to its Goodyear Eagle F1 summer tires, the SS can stop from 60 in as little as 117 feet. We look forward to finding out how nimble the new Camaro feels when compared to its primary competitors. <p>Your browser does not support iframes.</p> Moving down one notch to the 335-hp 3.6-liter V6, properly equipped 2016 Camaro coupes can hit 60 in as few as 5.1 seconds and cover the quarter in 13.5 at 103. Perhaps even more intriguingly, the 2.0-liter turbocharged four-cylinder and its 275 horsepower (the only configuration quicker with a manual transmission, incidentally) can propel the Camaro to 60 in 5.4 seconds and through the 'ol 1320 in 14 seconds flat. That's seriously quick, but buyers comparing the Camaro to the Mustang will find that the EcoBoost 2.3-liter is a bit more powerful (310 hp and 320 lb-ft) and quicker (5.1 seconds to 60). Chevy is making lots of noise about the efforts its engineers went through to shed weight from the 2016 Camaro, going so far as to shave down suspension bolts so that no thread went unthreaded. The weight-saving obsession pays off – base Camaro models are down 390 pounds while the SS model drops 223 pounds over the 2015. The 2016 Camaro SS boasts a power-to-weight ratio of 8.1 lbs per pony, a 14-percent improvement over the last-gen. Even though weight is down, chassis stiffness is said to be up by 28 percent over the fifth-gen Camaro coupe. Also of note: The Camaro is now lighter than the Mustang across the board when comparing like-to-like configuration levels. The 2016 Chevy Camaro starts at $26,695 (including $995 for destination).

Fernando Alonso just misses qualifying for Indy 500 on first day

Former Formula One world champion Fernando Alonso will need a clutch run on Sunday to qualify for the Indianapolis 500 on May 26 after he failed to seal a guaranteed spot on Saturday. The Spaniard tried fives times to put his McLaren Racing Chevrolet in the top 30, but wound up one spot short. He can make the 33-car field only through a six-car shootout on Sunday that will determine the race's final three drivers. "We have another chance to be in the race," Alonso, who is seeking to make his second Indy 500 field, told IndyCar TV. The Spaniard twice got inside the top 30 but both times was bumped outside the mark, with JR Hildebrand and Graham Rahal the final two drivers to seal qualifying spots. Britain's Pippa Mann will be the only woman in the race, qualifying 30th in 227.244 mph. Race positions 10-30 were determined during the day-long qualifying with Saturday's nine fastest drivers set to return on Sunday to decide pole. Spencer Pigot, driving the Ed Carpenter Racing Chevrolet, led qualifying with a four-lap average of 230.083 mph. He was followed by 2018 winner Will Power of Australia (230.081) and Simon Pagenaud of France (229.854). The troubles for Alonso, whose top four-lap average was 227.224 mph, were exacerbated by a punctured tire in his first qualifying run. "That didn't help," Alonso told reporters. "But, obviously, our performance has been quite bad all week. Quite poor." The Spaniard crashed his Chevrolet in practice on Wednesday and missed nearly two full days of practice while a backup car was prepared. He returned on Friday. Alonso said he was worried the McLaren team was "not ready for the challenge." "We've been slow. You see Juncos Racing crashing yesterday and being ready at 6 o'clock. That's impressive," he said. "For us, we've been a little bit slow on everything." Alonso is bidding to join Graham Hill as the only drivers to achieve the 'Triple Crown of Motorsport' with an Indy 500 victory. He previously won the Monaco Grand Prix and Le Mans 24 Hours race. He also won two Formula One drivers' titles. (Reporting by Gene Cherry in Raleigh, North Carolina; Editing by Greg Stutchbury)Related Video: Motorsports Chevrolet McLaren IndyCar