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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!"

2018 Dodge Demon comes with a factory tune for race gas

We knew the Dodge Demon was going to make a lot of power, but the ongoing question has been how much. We've seen estimates of between 757 and 1,121, but those have simply been guesses based on the numbers found in promo photos. However, if we had to put our bets on a horsepower rating, we'll probably go with the higher estimates because the Demon can run on race gas. Yes, the latest teaser for the Demon reveals that it will come with a factory tune optimized for race gas, which is rated at 100 octane or higher. Running such high octane, in combination with its heavy-duty intake cooling, means the Demon can handle absurd amounts of boost and advanced timing without running the risk of dangerous pre-ignition or detonation. Of course this also means the Demon should be capable of astonishing power with the high-octane calibration. The tune will be included in the Demon crate on a separate engine computer that the owner can swap out when he or she is ready to race. In addition to the computer, the center stack also has a button to activate the high-octane mode. A pair of fuel pumps and larger injectors also ensure the engine gets plenty of that sweet racing fuel. When not running the high-octane tune, the Demon runs on your average premium gasoline. Also, in case you accidentally run premium gas with the high-octane mode activated, the car will automatically switch to the default tune if engine knock is detected. You can get a peek at the system in the video above, and be on the lookout for a bonus video tomorrow. The full reveal will be next week on April 11 at the New York auto show. Related Video:

China's Geely says it has no plan to buy Fiat Chrysler — as FCA stock leaps

HONG KONG — Chinese carmaker Geely Automobile denied media speculation on Wednesday that it planned to make a takeover bid for Fiat Chryslerk Automobiles (FCA), the world's seventh-largest automaker. Geely was one of several Chinese carmakers cited in by Automotive News, which said representatives of "a well-known Chinese automaker" had made an offer this month for FCA, which has a market value of almost $20 billion. "We don't have such a plan at the moment," Geely executive director Gui Shengyue told reporters at an earnings briefing, when asked if Geely was interested in Fiat. He said a foreign acquisition would be complicated, but he did not elaborate. "But for other (Chinese) brands, it could be a fast track for their development," Gui added. However, a source close to the matter said FCA and Geely Automobile's parent firm, Zhejiang Geely Holding Group, had held initial talks late last year, without disclosing their nature. The source confirmed Geely was no longer interested in FCA, noting that the parent company had only three months ago announced its first push into Southeast Asia with the purchase of 49.9 percent of struggling Malaysian carmaker Proton, a deal that also included a stake in Lotus. Geel's denial failed to dent FCA's stock. The price of its Milan-based shares has jumped more than 10 percent to a 19-year high since Automotive News first reported on Monday, citing unnamed sources, that FCA had rejected the Chinese offer as too low. FCA stock on the New York Stock Exchange rose sharply on Monday from $11.60 to $12.38 and on Wednesday was trading at $12.84. FCA declined to comment on Wednesday. FCA Chief Executive Sergio Marchionne has repeatedly called for mergers as a way of sharing the costs of making cleaner, more advanced cars, but he has repeatedly failed to find a partner and retreated from his search for in April, saying FCA would stick to its business plan. He has also spoken of spinning the successful Jeep and Ram divisions off from FCA. Europe's largest carmaker, Volkswagen, and General Motors have both said they are not interested in talks with FCA. On Wednesday, Geely Automobile reported a doubling of first-half profit, above expectations, as cars designed with Sweden's Volvo won over domestic consumers. Volvo is a unit of the Zhejiang Geely group, and has recently announced it will share its technology with Geely.