2006 Chevrolet Corvette Z06 on 2040-cars

Auto blog

'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).

2016 Chevy Silverado puts on a better face

When Chevrolet introduced the redesigned Silverado pickup for 2014, you, our loyal readers, gave the new truck's front-end a lukewarm response. Aside from saying it was ugly, one commenter came to the far more damning conclusion that this brand-new vehicle already looked dated. For 2016, Chevy has attempted to address opinions like that, issuing a comprehensive facelift to its bread-and-butter pickup. Designers cut way back on the chrome for 2016, fitting a body-color strip across the middle of the grille and going to a single-headlight design. Combined with twin LED running lamps, the new look is much more modern while still harkening back to the retro-ish look introduced a few years back. The new truck also gets a much more muscular and aggressive hood, while the front bumper is significantly more modern, and features vertical housings for what look like LED foglights. The bad news, here, is that there's only one picture, shown above. We have no idea what changes Chevy has made to the rear of the pickup, nor do we know what other versions of the truck beyond the Z71 seen here may be available. The Bowtie brand did, however, confirm that we'd see a wider application of the eight-speed automatic transmission, as well as a new version of the MyLink infotainment system, which will play nice with both Apple CarPlay and Android Auto. Look for much more on the freshened Silverado when it makes its official debut this fall. Until then, check out the press release and hop into Comments. We'd love to hear what you think about this facelift. 2016 Silverado: The New Face of Strong - Bolder, more sculpted look reflects Silverado strength, dependability - Available support for Android Auto and Apple CarPlay - Expanded use of 8-speed transmissions; additional safety technologies DETROIT – Chevy Trucks are on a roll, with Chevrolet pickup sales up 32 percent so far this year. Chevrolet intends to strengthen this momentum with significant updates for the 2016 Silverado 1500 full-size pickup. "The redesigned 2016 Silverado will build on Chevy Trucks' legacy of dependability. It will feature a more muscular appearance and offer new customer-focused technologies," said Sandor Piszar, marketing director for Chevy Trucks.

Chevy's latest Silverado videos assume we're idiots

UPDATE: This article has been revised to reflect that any mention of materials used in a future Chevrolet Silverado is speculation. Can we have a sound, rational debate about the merits of aluminum versus steel? According to Chevrolet's latest marketing videos pitting the Silverado against the Ford F-150, the answer is no. The tone of all three ads is almost Orwellian: steel good, aluminum bad. Of course, this will all be a hilarious joke when an aluminum-bodied Silverado comes in 2018. That's an if, as a member of the General Motor public relations team has reminded me that any articles regarding future product are pure speculation. Until then Chevy needs to sell the current Silverado, with its body comprised chiefly of steel, against the Ford F-150's lightweight aluminum panels. Instead of touting the merits of the "most-dependable, longest lasting pickup," the strategy seems to center around negative propaganda towards the 13th element. The tone of all three ads is almost Orwellian: steel good, aluminum bad. Of the three videos, the most fair is Silverado vs. F-150 Repair Costs and Time: Howie Long Head to Head. Basically: aluminum costs more than steel, it's more difficult to repair, and requires special equipment for body shops. In terms of Chevy versus Ford, the blue oval truck costs more and takes longer to repair - an average of $1,755 more and 34 more days in the shop, according to the ad. But why stop there when you can have pitchman Howie Long raising an eyebrow at random facts? When Silverado Chief Engineer Eric Stanczak says of the Ford, "It's manufactured in a way that combines aluminum, rivets, and adhesive in a process that's different than Silverado." Long responds, "Huh. Interesting." At the end of the video, Long says "I'd be interested to know what happens to insurance costs." Note he's not saying anything substantive. If Chevy's legal team could sign off on some facts about insurance rates, it would be in this ad. On our Autoblog Cost to Own calculator, there is no significant difference in projected insurance costs between the two trucks. But at least that ad has facts. The other two videos are pure hype. In Cages: High Stength Steel, real people are asked what they think of aluminum and steel in a room with two cages. Then a bear is released into the room, and the subjects scurry to the safety of the steel cage.