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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).

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.

Jay Leno gets pulled over while roaring in a Corvette Z06 convertible

No one is above the law, even if that person is a certain silver-haired auto enthusiast with a popular weekly video series about the cars in his garage. This week, Jay Leno experiences the 2015 Chevrolet Corvette Stingray Z06, but he also gets to have a meeting with some of California's Finest immediately after a high-speed blast. As opposed to the full-bore Z06 coupe with the seven-speed manual, Leno gets behind the wheel of the slightly heavier convertible version with the eight-speed auto. Being a droptop doesn't bother him too much, but Leno makes it obvious he wishes that he could be shifting for himself. Even if the auto is technically quicker, Leno says that swapping gears gives him something to do while driving. Of course, one of the major advantages of the convertible is the ability to listen to the Z06's thumping V8 unimpeded. With 650 horsepower and 650 pound-feet of torque from 6.2-liters of supercharged muscle, it already puts down impressive numbers, but the sound might just be the best part of all. Around town, the 'Vette is quiet enough to easily blend in with the rest of traffic. However, tip the throttle down and the valves in the exhaust open up to turn the engine into roaring monster. Be careful where you make this thing howl, though, because it's pretty easy for the police to take notice. The host finds that out the hard way in this week's episode of Jay Leno's Garage. Related Gallery 2015 Chevrolet Corvette Z06 Convertible View 18 Photos News Source: Jay Leno's Garage via YouTube Celebrities Chevrolet Coupe Performance Videos Jay Lenos Garage chevy corvette stingray chevy corvette z06