1985 Chevrolet K1500 4x4 454 Automatic on 2040-cars

Auto blog

GM laying off 500 workers to slow Chevy Sonic production

Due to slow sales of the Chevrolet Sonic and Buick Verano, General Motors is cutting a shift at the Orion Township plant that builds the pair. The move lays off about 500 workers, but most of them are expected to get offers to transfer to other factories, Automotive News reports. The move came just a day after GM announced adding 1,200 employees to the Detroit-Hamtramck plant. GM has been trying all year at the Orion Township factory to align production of the Sonic and Verano with their demand. The automaker first attempted idling the plant several times and eventually resorted to laying off about 100 workers. It also reduced the production rate there. With the huge rise in popularity of crossovers, demand for the plant's small cars is on the downturn. According to Automotive News, there's currently a 116-day supply of Sonics and 100 days of Veranos to sell. Delivers tell a similar tale because the Chevy is off 35.2 percent from January to September, and the Buick does little better with a 27.2 percent drop from the same period last year. While the situation at Orion Township might look rough now, big things are on the horizon. Soon, the new Chevy Bolt electric vehicle will be built there when it hits the market around 2017. Plus, the plant will also get a $245-million upgrade and 300 new jobs for another, unannounced vehicle.

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

PickupTrucks.com's latest test results in a familiar winner [w/video]

PickupTrucks.com has gone and thrown the latest batch of half-ton pickups into a cage match to see who would come out on top. The site put the 2014 Chevrolet Silverado 1500, GMC Sierra 1500, 2013 Ford F-150, Ram 1500, Toyota Tundra and Nissan Titan through a battery of tests. Those included 0-60 miles per hour acceleration, 60-0 mph deceleration, fuel economy, a hill climb, and payload and towing. They even threw the rigs on an autocross course to evaluate overall handling. Each truck was given points based on how it scored in each evaluation.
Who came out on top? Somewhat surprisingly, the 2013 Ford F-150 walked away with the gold, though fewer than 50 points separated first and fourth place. Head over to PickupTrucks.com to read the full evaluation and the final results. You may be shocked to see exactly where some of the segment's newest additions placed. You can also watch a video on the test below.