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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).

Chevrolet Camaros at SEMA are a mobile accessory catalog

Chevy's goal at the SEMA Show in Las Vegas this week seems to be to show as much of its Performance and Accessories catalog as possible. That's why it brought three different Camaros - two with V8s and one powered by a V6 - with all of the best goodies from the catalog already fitted.
We gave a more in-depth recap of the Performance Camaro V8 Concept, the Performance Camaro V6 Concept and the Performance Garage Concept already, but we figured you'd like a short recap for each. It should be noted, though, that you can order all of the items you see here for your own Camaro, so be sure to take a long, hard look at our live galleries, just in case you're in the market for some mods.
Essentially, the Performance Garage Concept and the Performance V8 Concept are the same car - the only difference is that the later features a whole host of aesthetic tweaks in addition to its aftermarket, shorty exhaust headers and 2.75-inch exhaust. (The Performance Garage Concept has been usefully placed on its side; the better to see the new parts added to the vehicle.) The Performance V6 Concept is notable because, despite being a V6, there's no shortage of performance goodies fitted. All three of the Performance Camaros benefit from items from the Camaro ZL1, which can also be ordered through the catalog.

2016 Chevy Volt will be available across Canada, unlike most of US [UPDATE]

UPDATE: The story's been updated to add a response from General Motors of Canada. It's not enough that the Toronto Blue Jays may be the most intimidating team in Major League Baseball. Now, it appears that our neighbors to the north will also have some bragging rights in regards to General Motors' Chevrolet Volt extended-range plug-in vehicle. Specifically, most of Canada will have access to the 2016 version before most of the US will. In fact, the car will be available in Canada before people can buy it in Michigan. A trip to Windsor, Ontario, anyone? The Volt, which will boast a longer plug-in range than the current version, could go on sale in Canada as soon as November, GM Authority says. The model's second-generation version may debut in California as soon as this month, and is slated to be sold later this year in the 10 other states that abide by the so-called CARB (California Air Resources Board) rules for zero-missions vehicles. Those states include Oregon, Maine, New York and Massachusetts. But not GM's home state of Michigan. Either way, the new generation model's debut can't come soon enough for the US automaker, as Volt sales in 2015 have seriously lagged the 2014 numbers because of people waiting for the new version. "We will receive the 2016 Volt in Canada this fall, starting with our key Volt markets in Quebec, Ontario and British Columbia," wrote General Motors of Canada spokesman George George Saratlic in an e-mail to AutoblogGreen. "Note these are also the three provinces that provide provincial incentives on EV purchases. We'll then roll out Volt to the rest of the country." Last week, details were revealed about the first sales of the 2016 Volt, where marketing efforts will be concentrated among the largest plug-in buying states in the union. The other 39 states will get their shot starting next year with the 2017 model-year variant. Related Video: