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The Jitterbugs somersaulted at the 1986 Chicago Auto Show for the Chevy Nova

Judging by the vintage videos that the Chicago Auto Show has been uploading, if you wanted to check out the latest vehicles and watch some dancers in the same place in the late '80s and early '90s, then the Windy City event was definitely the place to be. We've already seen the Footlockers pitching the Cavalier in '88 and a troupe of women singing about the Geo brand in '91. Apparently, the trend went back even further, though. Just take a look at this group called the Jitterbugs selling some badge-engineered products from Chevrolet at the 1986 show. Flanked by the Chevy Nova and Spectrum, these guys managed to do a few pretty impressive jumps and somersaults but mixed them with some rather uninspired spins, as well. Also, wait for 1:24 into the clip to see the least enthusiastic backup dancers that the world has ever known. The Jitterbugs are even further proof that Chevy's habit of mixing dancing and its vehicles goes back even further than the Volt. News Source: ChicagoAutoShow via YouTube Auto News Marketing/Advertising Chicago Auto Show Chevrolet Videos Chicago chevy nova

'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).

Ford Bronco, Bronco Sport, sub-Ranger pickup and GM EVs | Autoblog Podcast #618

In this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Senior Editor, Green, John Beltz Snyder and Road Test Editor Zac Palmer. Top of the list this week are the leaked photos of the 2021 Ford Bronco and Bronco Sport. Then they talk about the possibility of a small Ford pickup based on the Focus, as well as all the electric vehicles Snyder saw in person at GM's "EV Day." The editors have been driving the Ram Power Wagon and Hyundai Sonata, and Palmer took Autoblog's long-term Subaru Forester to New Orleans. Finally, they help a listener choose a small luxury crossover in this week's "Spend My Money" segment. then, just as they're about to wrap up the show, they learn that the 2020 New York Auto Show has been postponed due to the coronavirus outbreak. Good times. Autoblog Podcast #618 Get The Podcast iTunes – Subscribe to the Autoblog Podcast in iTunes RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown 2021 Ford Bronco and Bronco Sport leaked photos (and, just as we predicted, more photos) Ford shows its dealers the sub-Ranger pickup More details about everything we saw at GM's "EV Day" Driving the 2020 Ram 2500 Power Wagon Driving the 2020 Hyundai Sonata Driving our long-term 2019 Subaru Outback to New Orleans Spend My Money: Audi Q3, Volvo XC40 or Range Rover Evoque? 2020 New York International Auto Show postponed Feedback Email – Podcast@Autoblog.com Review the show on iTunes Related Video: