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Leak reveals GM's 2017 heavy duty diesel trucks to get 910 lb-ft of torque [UPDATE]

UPDATE: Chevrolet officially announced specs for the 2017 Silverado HD and the rumors were true. The truck's new Duramax 6.6-liter turbo-diesel V8 puts out 445 horsepower and 910 pound-feet of torque. Chevrolet says the new motor produces 19 percent more torque and 12 percent more horsepower, while producing 35 percent fewer emissions. Overall, the new engine is a big improvement over the current motor, which generates 397 horsepower and 765 pound-feet of torque. According to Truck Trend, GM's newest heavy duty pickup trucks will pick up quite a bit more power and torque. The publication spotted a recent GM Powertrain ordering catalog that had the engine specs for the 2017 model year and managed to get some screenshots before the catalog was taken down, and they can be viewed here. The screenshots revealed that the 6.6-liter turbodiesel V8 powering the Silverado and Sierra heavy duty models will boast 445 horsepower and 910 lb-ft of torque. This is a substantial gain over the current models' 397 horsepower and 765 lb-ft of torque, and as Truck Trend points out, it exceeds the Ford Super Duty line's horsepower output of 440, but comes short of the 925 lb-ft rating. Truck Trend credits part of this output gain to the new intake system GM will introduce on the 2017 heavy duties. The intake gets 60 percent of its air from a scoop on the hood, with the other 40 percent coming from behind one of the front fenders. GM doesn't reveal horsepower figures in the press release about the scoop, but it does say the cooler air helps with maintaining the engine's output, and that the scoop does produce a ram-air affect, providing more air at speed. As we know, more air plus more fuel equals more power, but there's likely more to the power increase in this engine than only the intake. Related Video: News Source: Truck Trend via MSN Chevrolet GM GMC Truck Diesel Vehicles

Weekly Recap: Geneva's splendor reflects growing demand for ultra-luxury cars

Geneva is one of the most glittering auto shows in the world, but the list of high-powered and bespoke luxury cars was decadent this year even by the rich standards of the Swiss exhibition. It's great for enthusiasts to revel in the flame-throwing Aston Martin Vulcan, the racing-inspired elegance of the Bentley EXP 10 Speed 6 concept and the insane performance of the Lamborghini Aventador LP 750-4 Superveloce, but there's a reason for all of this opulence: the luxury market is big business. And it's growing. IHS Automotive forecasts that so-called ultra-premium sales will nearly triple this decade from 123,000 to 353,000 units around the world. The estimate includes brands like Aston Martin, Bentley, Ferrari and Rolls-Royce, but doesn't count BMW, Mercedes and Audi, which offer less expensive models in addition to their high-end flagships. Though IHS includes Porsche and its relatively large volume in the study, the ultra-premium segment is still set grow at about the same rate, even without the German automaker's figures. So what is propelling all of this growth in the most expensive segment of the auto industry? Put simply, there's more rich people. IHS Automotive principal analyst Tim Urquhart pointed to economic expansion in China, market recovery in the United States and a surge in the lucrative technology sector as contributing factors. This dovetails with a research report by UK-based Oxfam, an international relief organization, which found the world's richest one-percent owned 48 percent of global wealth in 2014, and it's expected to increase to more than 50 percent by 2016. View 17 Photos Carmakers are moving quickly to capitalize with new products, expanding their portfolios with low-volume speedsters like the 800-hp V12 Vulcan at Geneva, and plans to enter new segments, like Rolls-Royce's strategy to make an SUV. "Ultra-premium carmakers are looking to explore ways of growing their product offerings, and thus their bottom lines, in this most potentially profitable of segments," Urquhart wrote in a report on the Geneva show. In a nutshell, there are more choices for people with more money. It's a good time to have expensive taste. Other News & Notes 2016 Mazda MX-5 Miata production launches It won't be long now. The 2016 Mazda MX-5 Miata arrives later this year, and it's officially in production. Mazda announced this week that the roadster began rolling off the assembly line at its Ujina factory in Hiroshima, Japan.

GM reintroduces Tripower name in the worst way possible

The story of General Motors' use of the Tripower moniker begins way back in 1957, when Semon E. "Bunkie" Knudsen, then General Manager of GM's Pontiac division, directed his engineers to inject more performance into his brand's line of V8-powered automobiles. Fuel injection was an option, but hot rodders flocked instead to Tri-Power (marketed way back when with a hyphen), which grafted a trio of two-barrel Rochester carburetors onto a single intake manifold. A legend was born. And that legend was born of performance. At idle and when full power wasn't required, Pontiac's Tri-Power system used just the middle carburetor, which helped make the setup easier to tune. Depending on the year and model, either a vacuum system or a mechanical linkage opened up the two outer carbs, thereby switching from two barrels to six, and allowing the engine to take in more fuel and air. And it was an easy marketing win – six barrels is better than four barrels, right? Because performance! So, when news filtered in that GM has resurrected the Tripower name, those of us who grew up attending classic car shows and wrenching on old Pontiacs did a double-take. And then we all collectively sighed. Turns out that today's Tripower refers to a trio of fuel-saving measures that include cylinder deactivation, active thermal management, and intake valve lift control, according to Automotive News. And, at least for now, it applies to GM's line of fullsize trucks powered by a 2.7-liter turbocharged four-cylinder engine. We're all for saving fuel whenever possible. And we have zero say in how any automaker chooses to market its products and technologies. But, we'll offer our two cents anyway: Relaunching a storied name from the past is fine. Relaunching a storied name from the past while completely overlooking the reasons the name got famous in the first place is only going to irritate the people who remember the name in the first place. Couldn't they just call this new technology package something else? Related Video: News Source: Automotive NewsImage Credit: Getty Green Marketing/Advertising Chevrolet GM Pontiac Automotive History Truck chevrolet silverado