2003 Cadillac Escalade. Lots Of Extras. Must See! on 2040-cars

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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

Cadillac cancels sponsorship of Trump's PGA event

Cadillac has ended its sponsorship of the PGA's World Golf Championship, which has incited a response from Donald Trump, the presumptive Republican presidential nominee. Without the automaker's money to run the event at a property owned by Trump in Miami, the PGA announced it will move the WGC to Mexico City. Trump responded by saying, "Cadillac's been a great sponsor, but they're moving it to Mexico. They're moving it to Mexico City which, by the way, I hope they have kidnapping insurance. They're moving it to Mexico City. And I'm saying, you know, what's going on here? It is so sad when you look at what's going on with our country." In 2010, the PGA announced a multi-year deal with Cadillac to sponsor the WGC, starting in 2011. Since 2007, the event has been held at what is now known as the Trump National Doral Miami location. Trump took ownership of the property in 2012. Cadillac issued a statement to Autoblog that says: "We are proud to have been the title sponsor of the World Golf Championships-Cadillac Championship since 2011. We have made the decision, however, not to extend our sponsorship beyond this year. We thank the PGA TOUR for a great six years with the Cadillac Championship." Related Video: News Source: Talking Points MemoImage Credit: Elijah Nouvelage/Getty Images Auto News Government/Legal Cadillac Mexico City

Fast sedans and loose Tweets | Autoblog Podcast #555

On this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Associate Editor Reese Counts. Reese has been traveling a lot, and the two discuss his recent first drives of the 2019 Mercedes-AMG GT four-door and the 2019 Audi Q3. The pair also talk about the 2018 BMW X2 that's been in the office this week. Also on the agenda is the SEC's lawsuit against Elon Musk, Ola Kaellenius replacing Dieter Zetsche at Mercedes-Benz, Cadillac's move back to Detroit and the upcoming reveal of the 2019 BMW 3 Series at the Paris Motor Show.Autoblog Podcast #555 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 2019 Mercedes-AMG GT four-door 2019 Audi Q3 2018 BMW X2 Elon Musk lawsuit New Mercedes-Benz CEO Cadillac is heading back to Detroit The new 3 Series debuts next week Feedback Email – Podcast@Autoblog.com Review the show on iTunes