1984 Chevrolet Corvette 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

Chevy Bolt 200-mile EV going into production near Detroit

Where there's smoke, there's fire, apparently. The rumors of the Chevy Bolt going into production have been proven correct, with an announcement this morning at the Chicago Auto Show that the 200-mile, all-electric Bolt will be built at the Orion Assembly facility near Detroit. GM didn't say exactly when the Bolt will be built, but GM North America president Alan Batey said in a statement that, "We are moving quickly because of its potential to completely shake up the status quo for electric vehicles." He's not kidding. GM is talking about a $30,000 price tag for an EV that can do twice as many electric miles as any non-Tesla mass-production EV today. Previous hints have the Bolt starting production next year for a market debut in 2017, and with all of the accuracy we've seen from these secret releases up to now, we're going to say this is probably accurate until we hear otherwise. We still have questions about the price tag, but for now we'll try to track down more information here in Chicago. Chevrolet Commits to Bolt EV Production Game-changing, long-range EV to be built at Orion Assembly facility in Michigan CHICAGO – Chevrolet this morning confirmed production of its next-generation pure electric vehicle, based on the Bolt EV concept. It will be built at General Motors' Orion Assembly facility near Detroit. GM North America President Alan Batey made the announcement ahead of the Chicago Auto Show. The Bolt EV concept was introduced last month at the North American International Auto Show in Detroit. "The message from consumers about the Bolt EV concept was clear and unequivocal: Build it," said Batey. "We are moving quickly because of its potential to completely shake up the status quo for electric vehicles." Leveraging the industry-leading battery technology found in the Chevrolet Volt and Spark EV, the Bolt EV concept was developed as a game-changing, long-range pure electric for all 50 states, designed to offer more than a GM-estimated 200 miles of range at a target price of around $30,000. The progressively styled concept vehicle features selectable driving modes for preferred driving styles, such as daily commuting, and it was designed to support DC fast charging. "We're proud that Chevrolet has decided to produce the Bolt EV here in Michigan at the Orion Assembly facility," Gov. Rick Snyder said. "Michigan unquestionably remains the global automotive leader.

Conquest and controversy conclude the 2014 Rolex 24 at Daytona [spoilers]

If you don't wish to know who won the 2014 Rolex 24 at Daytona, you should avert your eyes right now. We'll even give you a double-space to skedaddle...
For those of you still with us, the first race in the United SportsCar Championship (USCC) is done, but the discussions about it certainly won't end for a while. Daytona Prototypes claimed the first four overall places, the top spot taken by the No. 5 Action Express Coyote-Chevrolet Corvette DP driven by Joao Barbosa, Christian Fittipaldi, Sebastien Bourdain and Burt Friselle. The 16th and final caution of the race bunched the field up for an eight-minute sprint to the flag, so the first place getter finished just 1.4 seconds ahead of the No. 10 Wayne Taylor Racing Dallara-Chevrolet Corvette DP driven by Max Angelelli. Third place went to Brian Friselle in the No. 9 Action Express Chevrolet Corvette DP, 20 seconds down. Chevrolet power hasn't taken the overall win since 2003, eleven years later it scores a one-two-three-four. The No. 6 Muscle Milk/Pickett Racing ORECA-Nissan 03 scored fifth place, the top LMP2 finisher.
The Prototype Challenge class win went to the No. 54 CORE Autosport team of Colin Braun, Jon Bennett, Mark Wilkins and James Gue.