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Ford Expedition, F-150 Limited and Cadillac V Series | Autoblog Podcast #583

In this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Consumer Editor Jeremy Korzeniewski and Assistant Editor Zac Palmer. First, they talk about the cars they've been driving, including the Ford Expedition, Ford F-150 Limited and the Mini Cooper JCW Knights Edition. Then they discuss the news, including Ian Callum stepping down from Jaguar, Cadillac's V cars and the latest in the saga between FCA and Renault. Autoblog Podcast #583 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 Cars we're driving: Ford Expedition Ford F-150 Limited Mini Cooper JCW Knights Edition Ian Callum resigns from Jaguar Cadillac V FCA backs down from Renault merger talks Feedback Email – Podcast@Autoblog.com Review the show on iTunes Related Video:

GM patent reveals new two-stage turbocharger

Modern turbochargers may be some of the best ever made, but performance is something that engineers are always trying to improve. According to GM Inside News, General Motors (GM) is hoping to alleviate some of the negative aspects of a two-stage turbocharger setup with a newly-patented design. The patent, that was filed on May 19, 2016, reveals a clever bypass system that allows the engine, a four-cylinder unit, to optimize both the low-pressure and high-pressure inlets for its respective functions. According to the filing, a conventional two-stage turbocharger setup is engineered to allow both turbines to operate simultaneously at low and mid engine speeds. At high engine speeds, only the low-pressure turbine works. The setup can't isolate either the low or high pressure side, which can impair low-end performance. GM's new two-stage turbocharger setup looks to eliminate this by linking the high-pressure turbo to the exhaust manifold through the high-pressure inlet duct. The low-pressure turbo is attached to the high-pressure turbo by a low-pressure inlet duct, which is linked to a connecting channel. A single actuator that is housed in the exhaust manifold creates a bypass that can opens the high-pressure inlet or close the connecting channel. Depending on what the engine load and speed is, the ECU guides the actuator—a single rotating spindle with discs corresponding to flanges on the high and low pressure sides—to isolate one of the two turbos. Isolating the turbos allow the respective inlets to be engineered for the best possible fluid dynamic performance. The setup should increase performance and decrease lag. There's no word on what car this setup will make an appearance on, but it will most likely be used in premium vehicles before trickling down to the rest of GM's vehicles. Related Video: News Source: GM Inside News, AutoGuide via GM Authority Cadillac Chevrolet GM Technology Sedan turbo patent engine turbocharging

Jeff Gordon will come out of retirement to race new Cadillac endurance racecar

Jeff Gordon is not a man who takes well to retirement, apparently. That's not a surprise at all, given that we've been talking about his return to racing since almost the minute he retired in the first place. This year, he's taken the wheel for Dale Earnhardt, Jr., who is recovering from a concussion, several times already. So we shouldn't be too surprised to find out he's officially coming out of retirement – the twist is that it won't be in a stock car. Gordon has signed onto Wayne Taylor Racing, Motorsport.com reports, and he'll join Ricky and Jordan Taylor as well as Max Angelelli. Their ride will be the newly-revealed Cadillac DPi-V.R racer, a Dallara-chassis car powered by a 6.2-liter pushrod V8 loosely related, Cadillac claims, to the engine in the current CTS-V. You can read all about the DPi-V.R right over here. Remember, Gordon has a total of 93 NASCAR wins to his name, as well as four titles. He knows his way around Daytona pretty well, too, having won the 500 three times. He's also dabbled in endurance racing once before, in the 2007 24 Hours of Daytona with Taylor, Angelelli and Jan Magnussen in a WTR Riley-Pontiac car. They ended up on the podium, so you can say Gordon's inaugural and only outing in endurance racing so far was a success. It's been a decade, so we'll see if he's rusty, although knowing about how competitive champions are, we think he'll blow out the cobwebs and get right down to work. You can read Gordon's statement over at his personal site. Related Video: