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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

A pair of different but awesome Hondas star in the latest Forza Horizon 3 car pack

Forza Horizon 3's ever-expanding car list grows again with its latest downloadable car pack. This time it packs a pair of Hondas from opposite ends of history. In fact they use opposite drive wheels, too. The first, representing the modern day and front-wheel drive, is the previous generation, 300-horsepower, 2016 Honda Civic Type R. From the early days of Honda automobiles, and with rear-wheel-drive, is the 1970 Honda S800. It has substantially less than 300 horsepower. The Civic Type R isn't the only hot hatch in the pack either. The Vauxhall Corsa VXR provides a European counterpoint to the Honda, albeit a bit smaller. It features less power – about 200 hp in all – but should be an excellent match to the Fiesta ST. The pack also features a couple of high-dollar, high-horsepower machines in the form of the 2017 Aston Marin DB11 and the 2016 Cadillac ATS-V. Plus, for fans of older cars, there's the rear-engined Renault Alpine GTA Le Mans, and a Holden with a really long name: the 1985 HDT VK Commodore Group A. View 7 Photos As usual, the pack is included with the Forza Horizon 3 Car Pass. Or, if you don't have the pass, the pack can be purchased on its own. Related Video: Image Credit: Turn10 Studios / Playground Games Toys/Games Aston Martin Cadillac Honda Videos aston martin db11 cadillac ats-v forza horizon 3 vauxhall corsa

Cadillac's new ad campaign to tell you how to get lucky

Cadillac is set to launch a new ad campaign this fall, as it attempts to maintain the momentum established by new models like the ATS. The campaign comes from an agency called Rogue, and according to AdAge, will lean on American values. It's called, "Work Hard. Be Lucky."
The campaign is fairly self-explanatory, just from the tagline. It's meant to make a Cadillac seem more attainable to the average, aspirational buyer. It does kind of pander to that American idea that everyone's hard work gets rewarded, but as ad campaigns go, that's not a bad thing.
Somehow, it doesn't roll off the tongue quite like "The Standard of the World." As AdAge points out, Cadillac's advertising over the years has lacked a real coherent theme, although we'll admit to enjoying the most recent campaigns, particularly the around-the-world jaunts with the ATS. It's unclear if the "Work Hard. Be Lucky." theme will evolve into an actual tagline for the brand, with Caddy spokesman Dave Caldwell telling the advertising mag, "It could very easily end up being a line of copy along with other lines; we don't really know yet. It's an open question as to how dramatically it will be featured."