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Chevy finishes restoration of damaged 1 millionth Corvette

When a sinkhole at the National Corvette Museum devoured eight, rare examples of the iconic American sports car last year, some of the victims emerged better than others. While damaged, the 2009 Corvette ZR1 Blue Devil was able to drive out under its own power, making for a fairly straightforward restoration. Meanwhile, the one-millionth 'Vette came out looking like a pancake. Bringing the convertible back to perfection has taken four months and 1,200 man-hours, but the milestone car is finally on display again. After being a brief exhibit at the National Corvette Museum, the millionth 'Vette was moved to the General Motors Design Center. There, a 30-person team started on the difficult restoration. "When we disassembled it, we found that each employee involved in building it had signed a part of the car, which was fantastic and moving to see," said GM executive Mark Reuss. Therefore, the team tried to retain as many original parts as possible. The damage was extensive, and repairs included straightening the front sub-frame damage, patching the seats, and carefully restoring the dashboard pad to maintain the signatures below. The hood, front fascia, and side sills were replaced with parts from a donor vehicle. To keep the 'Vette perfect, the team scanned the names and put them on the new components. In one case, they even went back to an original employee to sign a replacement part. Surprisingly, the engine and transmission were fine. With the work done, the National Corvette's Museum's revived exhibit is nearly complete. Five of the other cars aren't being restored, and the museum is bringing the 1962 Corvette back to life. <p>Your browser does not support iframes.</p> Chevrolet Fulfills 1 Millionth Corvette Restoration Pledge Sinkhole-damaged milestone returns to National Corvette Museum 2015-09-03 BOWLING GREEN, Ky. – After more than four months and 1,200 man-hours of painstaking craftsmanship, restoration of the milestone 1 millionth Corvette – a white 1992 convertible – is complete. It was unveiled today at the National Corvette Museum, where it returns as part of the permanent exhibit. The car was damaged on Feb. 12, 2014, when it and seven other rare Corvettes tumbled into a sinkhole that opened beneath the museum's Skydome area. Chevrolet pledged to restore it.

'Killing a Duramax' Gale Banks YouTube series methodically tunes a diesel to death

Learning or perfecting a skill by watching YouTube videos is known as attending YouTube University. GM Authority picked up on one of the video site's more fascinating courses, hosted by Gale Banks; in a fair world, he should be referred to as Professor Banks when it comes to diesel engines and truck tuning. A few months after GM introduced the updated L5P 6.6-liter Duramax diesel V8 in the 2020 Chevrolet Silverado HD and GMC Sierra HD that ships with 454 horsepower and 910 pound-feet of torque, Banks decided he wanted to methodically tune the engine to death. The purpose of the resulting series, called "Killing a Duramax," is to push more power out of the engine in order to discover which parts break and when — or, as Banks puts it, force-feed the Duramax "until the crank hits the street and the heads hit the hood." With that knowledge, Banks can figure out all the weak points on his way to building what he calls a "Superturbo," that being a supercharged, twin-turbo race engine with more than 1,000 hp. What makes the series fascinating is Banks' knowledge, paired with the company's comprehensive iDash engine monitoring system that keeps tabs on a glut of parameters every step of the way. So for instance, you get Banks explaining the differences between inches of mercury and barometric pressure, how those are different from the water content of the air measured in grains, then showing those readouts on the iDash, then explaining in detail how they affect the air density in the Duramax system. The stock Borg-Warner variable turbo gets a lot of airtime — Banks accuses it of being "out to lunch" because he feels it's the weakest link on the engine. That turns into a turbo teardown and a deep explanation of performance pitfalls, such as when air pressure on the turbine begins to diverge from the boost pressure coming from the compressor. Banks says he can keep close tabs on where power's coming from, because the iDash monitors the horsepower contribution provided by the ambient air, the turbo, and the intercooler separately. The major changes so far are a stouter Precision 7675 turbo and TurboSmart wastegate (episode 5), a twin intake (episode 6), a custom liquid-cooled intercooler from a marine engine, a new GM oil cooler and synthetic oil (episode 10), and new injectors (episode 11).

Surprise! GM putting aluminum in next-gen pickups

Last month, General Motors launched a series of ads touting the benefits of steel over aluminum – specifically, with regard to the Chevy Silverado versus the Ford F-150. (Kind of. We're not sure what a grizzly bear has to do with anything.) We took issue with the ads, with editor in chief Mike Austin saying they "reek of insecurity, and distract from the Silverado's strengths that could be used for positive advertising." But what bothers us more, is that yet another report surfaced claiming anti-aluminum GM will indeed use the weight-saving material in its next-generation fullsize trucks. On Tuesday, GM announced a $877-million investment for its truck plant in Flint, MI. But Reuters says that huge overhaul is because the trucks will use "substantially different equipment than the tools GM uses today." The report specifically states, "People familiar with the company's plans say GM's next-generation pickups and SUVs will make use of various materials, including aluminum and lightweight steel, to shed weight and gain fuel efficiency to meet tougher federal standards." The Silverado already uses a few aluminum components in the engine and hood, and if more widespread use will help GM build its best fullsize trucks ever, then that's great. Honestly, we have no reason to doubt that aluminum will be used in the next Silverado and GMC Sierra. We just hope GM remembers that nothing is ever truly deleted from the bowels of the Internet when it launches the subsequent "look how great aluminum is!" campaign. Related Video: News Source: Reuters Green Plants/Manufacturing Chevrolet GM GMC Truck aluminum steel