2014 Chevrolet Cruze 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.

Autoblog Podcast #327

New York Auto Show, Jim Farley interview, 2014 Chevrolet Silverado fuel economy, Ford fuel economy app challenge
Episode #327 of the Autoblog Podcast is here, and this week, Dan Roth, Zach Bowman and Jeff Ross talk about this year's New York Auto Show, Chevrolet's latest assault in the pickup truck fuel economy battle, and Ford's reward for developing a better fuel economy app. Dan also has an interview with Ford's Jim Farley about the future of Lincoln. We wrap with your questions and emails, and for those of you who hung with us live on our UStream channel, thanks for taking the time. Keep reading for our Q&A module for you to scroll through and follow along, too. Thanks for listening!
Autoblog Podcast #327:

Star Wars Car Drives To The Dark Side Of Comic Con

When it comes to designing coveted collectible toys for sale at Comic-Con, the annual celebration of pop culture lifting off Thursday in San Diego, the sky's the limit for the designers at Mattel. Fittingly, the building where Mattel's dreamers conceive of their limited-edition playthings is just down the street from the Los Angeles International Airport. Inside the colorful design center - a Hot Wheels-themed shuttle bus transports employees from Mattel's parking garage - the designers have spent the past year working on 10 toys created especially for the Comic-Con crowd, including a replica of the Batmobile from the upcoming game "Batman: Arkham Knight" and a 9-inch-tall action figure of Superman killer Doomsday. "We don't have to worry about retail. We don't have to worry about margins," said Doug Wadleigh, Mattel's senior vice president of global brand marketing for boys and entertainment. "We don't have to worry about operational efficiencies. We only have to worry about creating the coolest toys for our fans. Period." It also offers some escape from Mattel's reality these days. Like other toy makers struggling in this digital, video-centric age, the company is trying to remain relevant in the retail world. Core brands like Barbie have seen less of a demand, with a 14 percent drop in sales in the first quarter of this year. Mattel had a net loss for the first three months ending March 31 that totaled $11.2 million. But things will at least seem rosier at Comic-Con, where eager buyers for the toys await (the only other place they will be sold is on the Mattel collector's site). Mattel's exclusives this year run between $20 and $85, but elite toys can fetch much more when they're put up for auction. The crown jewel for Wadleigh and his team this year is a Darth Vader die-cast car, the first official collaboration from Hot Wheels and the "Star Wars" franchise. The car - imagine if a Chevrolet Corvette C5 and the villainous Sith lord's helmet had a baby - comes in a sleek black box and encased in a replica of Vader's lightsaber, complete with a swooshing sound effect. "We've been trying to partner with Lucasfilm and Disney on this property for a long time," said Wadleigh. A full-size working replica of the Vadermobile will be on display at Mattel's booth at the massive San Diego Convention Center.