2023 Gmc Sierra 1500 Denali on 2040-cars

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'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).

GMC Hummer EV SUV prototypes hit the trails in Moab

It seems like GMC's new Hummer EV pickup only just hit the market, but it's almost time to roll the hype train back through for the next installment: the SUV. GM President Mark Reuss shared images of some prototypes crawling on the rocks outside Moab in what he called "final testing validation" ahead of the SUV's projected arrival in showrooms some time in early 2023.  "With its aggressive 49-degree departure angle and tight turning radius of just 35.4-feet, the HUMMER EV SUV’s maneuverability, capability and performance make it an off-road supertruck," Reuss said in the post accompanying the photos. The over-the-river-and-through-the-woods routine depicted in the photos doesn't reveal much we don't already know about the forthcoming electric 4x4, but we can at least contextualize that 49-degree departure angle; the best you'll get from any Jeep Wrangler currently on sale is 40.4 degrees.  GMC's Hummer SUV will launch early next year with an 830-horsepower drivetrain, offering roughly 300 miles of driving range. Pricing will start at $105,595 before options. Later in 2023, GMC will release an EV2X variant with up to 625 horsepower, similar range and an $89,995 price tag. Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

Ford’s Onboard Scales and Smart Hitch win the 2022 Autoblog Technology of the Year award

The 2022 Autoblog Technology of the Year award goes to Ford for the Onboard Scales and Smart Hitch hauling and towing features found in the F-150 lineup. This new technology, as tested in the 2022 Ford F-150 Lightning, is a boon to pickup truck owners. Not only will it make observing your truck’s maximum loads easier and more intuitive, but it will also ensure youÂ’re hauling and towing in the safest-possible manner. We began the process with a long list of features to test and whittle down. Technologies like MercedesÂ’ new electric turbocharger, GMÂ’s Super Cruise with added towing capability and many more went through the consideration process, but we finally whittled the field down to just three finalists. They are: the GMC Hummer EV with its flashy CrabWalk four-wheel-steer technology, the Genesis GV60 with its facial recognition/fingerprint start technology, and of course FordÂ’s trucking gear. As is the norm for our Technology of the Year award, three main questions are asked, and editors assign point values based on how well the technologies perform in testing. How significant is this tech? How well does it work? And new for this year: Consider the Wow Factor. With the scores tallied, the Ford tech earned 123 points, topping the Hummer (117 points) and GV60 (108). This is the second straight win for Ford, which won the 2021 TOY Award with its Pro Power Onboard charging feature.  Ford joins Tesla (2014, 2016) as the only two-time winner of our Tech of the Year Award, which dates to 2013. Kia, Cadillac, Tesla, BMW, Chevy, Chrysler and Audi technologies are among the previous winners. 2022 Technology of the Year testing View 16 Photos While systems that tow and haul may not seem to be the latest or most sophisticated tech, they remain essential and Ford uses things like the infotainment system, taillights and the Ford mobile app to create a forward-looking experience Henry Ford would never have dreamed of when the first Model Ts were outfitted with beds for farm and war duty in 1917. Even 10 years ago, integrating tech in this manner would have seemed futuristic, but Ford pulls it off. “FordÂ’s clever towing and hauling features earned our award this year because they are easy to use, easy to understand and simply make your life as a truck owner better,” Autoblog Editor-in-Chief Greg Migliore said. “It was a competitive field this year, with HummerÂ’s CrabWalk and GenesisÂ’s Biometrics features both winning strong support.