Silver, on 2040-cars

Auto blog

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

Ford Mustang Shelby GT350R named Road & Track Performance Car of the Year

With a 526-horsepower, 5.2-liter V8 that roars to 8,250 rpm, it's really hard to consider the 2016 Ford Shelby Mustang GT350R an underdog in any fight. However, the Shelby held the lowest as-tested price and was only middle of the pack in terms of power in Road & Track's 2016 Performance Car of the Year challenge. The 'Stang's numbers clearly didn't tell the whole story about the potent coupe because Ford's muscle car grabbed the title in this year's test. A model needs to be new or significantly updated to be eligible for the honor, and R&T found an impressive slate of eight candidates this year. The challengers included the Bentley Continental GT3-R, Cadillac ATS-V Coupe, Chevrolet Corvette Z06, Dodge Viper ACR, Mercedes-AMG GT S, and Porsche Cayman GT4. The Ferrari 488 GTB was the most expensive of the bunch with an as-tested price of $347,942, which is five times more than the Shelby. Once the group was together, R&T hustled them over curving roads and on the National Corvette Museum Motorsports Park. There was a lot to love about the Shelby, even in this impressive crew. "With a flat-plane crank and Sport Cup 2 tires, the GT350R is a Mustang turned up to 11," editor-in-chief Larry Webster said in the announcement of the results. The GT350R joins some great company. Past winners include the Porsche 911 GT3 last year and the Corvette in 2013. For some fantastic photography and the complete appraisal of these performance machines check out R&T's website for the full story. Related Video: ROAD & TRACK NAMES THE FORD MUSTANG SHELBY GT350R THE 2016 PERFORMANCE CAR OF THE YEAR New York, NY (November 9, 2015) – Road & Track today named the Ford Mustang Shelby GT350R the 2016 Performance Car of the Year, beating out seven of the world's best new sports cars. The article appears in the December/January issue, on newsstands November 17, and on RoadandTrack.com. "With a flat-plane crank and Sport Cup 2 tires, the GT350R is a Mustang turned up to 11," said Larry Webster, editor-in-chief of Road & Track. "Not only does the car have soul and harness so much firepower with such ease, but the real achievement here is that it's so approachable. It's a car you can't help but love." The Mustang Shelby GT350R was the winner by a runaway vote.

GM is quietly slashing prices on base models

While General Motors' fourth quarter financial figures haven't yet been released, the automaker seems to be weathering a potentially rocky time well, even beating third-quarter projections last year. To keep the climb going, the company is launching new base trims for several popular models that make them cheaper than ever but with tight dealer margins. The new entry-level trims are the Chevrolet Cruze L, Equinox L, GMC Terrain SL and Buick LaCrosse 1SV. Buyers lose some content by picking them, but the prices are slashed. According to Cars Direct, the biggest savings are on the LaCrosse, where customers pay $31,065, plus $925 destination, $2,570 less than the previous base 1SB trim but must accept things like 17-inch wheels and no cargo net in the back. If you're wondering how Buick can remove only a little equipment but cut the price so much, it's because the company also slashed dealer margins. According to Cars Direct, the difference between the invoice and MSRP for the LaCrosse 1SV is only around $150, compared to around $1,350 before. The disparity is even greater for the Cruze with an $81 difference in the prices, compared to about $600 for the LS version. Showrooms are expected to keep very low stocks of these trims, though. "Dealers use such vehicles to get people in the door, but they do not generally want to do high volumes of these strippers. The margins are next to nothing; they don't make much money off these cars," said Ed Kim, Vice President of Industry Analysis for AutoPacific to Autoblog. Dealers are also expected to advertise that these new base trims undercut major competitors. For example, the Cruze L rings up for about $2,320 less than a Honda Civic LX, according to Cars Direct. One potential drawback for buyers is that these models might not be eligible for incentives. While the attractive prices might get customers into dealers, folks may not actually end up driving home with these entry-level models. Kim indicated base trims also make up a small portion of the sales mix. "Consumers aren't asking for stripped out vehicles, even at the low end of the marketplace," he said. Featured Gallery 2015 Chevrolet Cruze View 9 Photos News Source: Cars DirectImage Credit: Chevrolet Buick Chevrolet GM GMC Car Buying Car Dealers Crossover Sedan gmc terrain cheap cars