2007 Chevrolet Silverado 3500 Classic Lbz Duramax Diesel 4x4 Long Bed Dually Lt3 on 2040-cars

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Chevy's 6.6-liter Duramax is pretty much all new

To say there's a heated battle in heavy-duty pickups is an understatement, with Chevrolet, Ford, and Ram constantly trading blows of increased torque, horsepower, and towing capacity. The latest salvo is the revised, more powerful turbo diesel 6.6-liter Duramax V8 in the 2017 Chevy Silverado. It has 910 pound-feet of torque, an increase of 145, putting it nearly level with the Ford Super Duty. Here's a closer look at where those gains come from. How exactly did Chevrolet add all that torque plus 48 horsepower? The automaker essentially took a fine-tooth comb to the entire engine. Chevy says it changed 90 percent of the V8, and the cumulative effect of those small changes adds up to big increases. As you might guess, the turbocharger is updated. The larger unit features electric actuation of the variable nozzle turbine (VNT), and what Chevy calls a double axle cartridge mechanism that separates the VNT moving parts from the housing. That helps with heat performance as well, with a claim that the exhaust side of the turbo can run continuously up to 1,436 degrees Fahrenheit. Helping that cause are six exhaust gaskets made of Inconel - an nickel alloy that contains chromium and iron – and upgraded stainless steel for the exhaust manifold. Despite having the same cast iron cylinder block, albeit with some minor enhancements, the engine has new cylinder heads, pistons, piston pins, connecting rods, and crankshaft, which have all been upgraded to handle 20 percent higher cylinder pressures. Alongside the increase in pressure, Chevrolet also increased the cylinder head's structure with a honeycomb design. The pattern features high-strength aluminum with dual layer water jackets that not only improve strength, but also optimize water flow for better cooling. For 2017, the cylinder head also benefits from integrated plenum that aids the engine in getting more air under heavy loads. The cylinder head isn't the only component to get a minor update, as the pistons have a larger diameter pin for improved oil flow. The same detailed improvements has been bestowed to the humble connecting rods (second in our hearts only to the inanimate carbon rod). The new design has the bolts oriented roughly 45-degrees to the rod instead of parallel. The angle split design, as it's called allows for easier passage through the cylinder.

2015 Chevrolet Corvette Z06 Convertible is the track car for sun worshippers

Supercharged, 6.2-liter V8? Check. Seven-speed manual? Check. Obsession with weight? Check.
What did you expect when Chevrolet said it was bringing a new Corvette variant to the 2014 New York Auto Show? Maybe a sticker and trim package, like the C6 Corvette Grand Sport or a tie-in deal like the Black Widow car from Chicago? On the opposite end, maybe there was an even more hardcore Z06 waiting in the wings. Who knew?

Recharge Wrap-up: Detroit Electric teaser video, Nissan Leaf is Good Housekeeping "Tried and Tested"

Detroit Electric has a new teaser video and has updated its brand in preparation of the introduction of the SP:01. The refreshed logo uses a blue and white color palette, and the company has also given its website a new look. The teaser video, which gives a sneak peek at the exterior of the SP:01, shows the car taking form in the midst of an electrical storm. Watch the video or learn more in the press release below. Abengoa is celebrating the grand opening of a commercial scale cellulosic ethanol plant in Hugoton, KS. When running at full scale, the refinery will produce up to 25 million gallons of ethanol a year. The plant will also generate enough electricity to power itself and put some back into the grid. Energy Secretary Ernest Moniz was on hand for the dedication, saying, "Every gallon of cellulosic ethanol produced and used to fuel our vehicles reduces the impact of harmful greenhouse gas emissions by greater than 60 percent as compared to conventional gasoline." Learn more at Energy.gov. Good Housekeeping has named the Nissan Leaf one of its "Tried and Tested" vehicles. The magazine called the Leaf SL its top "Roomy Electric" vehicle in its November issue. The magazine's research institute evaluated the EV based on track and road driving, ergonomics and convenience features. Good Housekeeping made note of the car's "impressive" range, but according to Nissan's Fred Diaz, "the real beauty of the Nissan Leaf is that it's roomy and, best of all, fun to drive." Read more in the press release below. Quasar Energy Group produces compressed natural gas from sewage and garbage. It uses things like grains leftover from brewing Budweiser, food waste from a baseball stadium and sewage sludge to produce the gas through anaerobic digestion. The compressed gas can then be used to power cars like Chevrolet's Bi-fuel Impala, which goes on sale later this year. Chevrolet likens the situation to the Delorean time machine in the Back To The Future movie series, which uses garbage to fuel its fusion generator. Watch the video and read the press release below to learn more. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.