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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.

Auto Show Notebook: Legendary Continental name inspired Lincoln's designers

What's in a name? A lot for the Continental concept, and it gave Lincoln designers a sense of purpose as they styled the brand's upcoming flagship sedan. "The moment that we told them, it was amazing," Lincoln president Kumar Galhotra said. "They totally got it." "It" is cutting-edge technology wrapped in stately, large-sedan design. It's a nod to Lincoln's storied past, but a signpost for where the brand is heading. Though the Continental name dates to the late 1930s, Lincoln designers avoided making the concept overtly retro. "You can't let it pull yourself back too far in history, but you've got to design a car that lives up to the name," Galhotra said. Speaking to Autoblog on the floor of the New York Auto Show where the Continental formally debuted Wednesday, the Lincoln president reiterated that the car is on track to launch in 2016. It will compete against the Audi A6, Lexus GS, BMW 5 Series and other large luxury sedans. After its debut, the concept in New York will fly to China – another critical market for Lincoln – for display there. It will be replaced in New York by a prototype without an interior. The Continental is the latest high profile play by Lincoln to raise its image with consumers, who have either ignored or forgotten about it amid steep competition in the luxury sector from German and Japanese brands and a potentially resilient Cadillac. Lincoln sales are essentially flat compared with 2014 through the first quarter of this year, with total volume of 21,478 units. The middling start to 2015 comes on the heels of nearly 16-percent sales growth last year spurred by the launch of the MKC and the prominent signing of Matthew McConaughey to star in Lincoln advertisements. Other News, Notes & Quotes Speaking of names, Chevrolet did its homework before deciding to proceed with "Malibu" for its new generation of midsize cars. "We went out and researched it," said Alan Batey, president of General Motors North America. "People actually like the name 'Malibu,'" he said. Admittedly, the current Malibu has struggled in the marketplace against entrenched competitors, Batey said, but he's optimistic its awareness and historical value are assets to the dramatically redesigned sedan."The name's strong," he said. Meanwhile, in other Chevy news, the brand kicked off a new marketing campaign, "Real People, Not Actors" Wednesday. It will show consumers interacting with Chevys and their spontaneous reactions to the vehicles.

Recharge Wrap-up: EVs poll well in Portland, Tesla seeks office space

In a poll of drivers in Portland, more than 80 percent said they would be driving an EV in the next 10 years if they weren't already. The poll was small and not scientific, with just 218 votes cast, but it does reflect a slice of a certain population with changing attitudes toward electric mobility, and 80 percent is an impressive figure. Additionally, 43 percent of respondents planned to have an EV in the next five years, and only 18 percent said they prefer gasoline-powered vehicles. With EVs in many ways repeating the adoption process that hybrids went through a decade ago, the five- or ten-year timeframe for more widespread use seems only natural. Read more at the Portland Business Journal. San Francisco Mayor Ed Lee parks like an idiot, or rather, his security detail does. His Chevrolet Volt has been ticketed for parking six times since he took office. Granted, those street-sweeping signs are tough to keep track of, but his car has been photographed blocking at a bus stop while grabbing a burrito (who hasn't sinned in the name of a delicious burrito?), and was even caught parked in a crosswalk. The tickets were all dismissed. Read more from the SF Gate. Tesla is looking for office space in Silicon Valley. As the electric car company continues to search for a place to build its $4- to $5-billion battery Gigafactory, it also needs some real estate to expand its operations near its Palo Alto home. Tesla has expanded from 3,000 to 6,000 California-based employees since the end of 2012, and plans to add 500 more by the end of the year. It is currently looking for 200,000 to 300,000 square feet of office space close to its Fremont factory, according to sources in the real estate industry. Read more at the Silicon Valley Business Journal. Related Gallery 2014 Chevrolet Volt View 11 Photos News Source: Portland Business Journal, SF Gate, Silicon Valley Business JournalImage Credit: Paul Sakuma / AP Green Chevrolet Tesla Electric recharge wrapup portland silicon valley parking ticket