1968 Chevrolet Camaro Custom Restomod 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

GM recalling 686k Lambda-platform models for hatch repair

General Motors is recalling 686,287 units of its Lambda platform crossovers. On models equipped with a power rear hatch the system can potentially fail. This campaign includes the 2008-2012 Buick Enclave, 2009-2012 Chevrolet Traverse, 2007-2012 GMC Acadia, and 2007-2010 Saturn Outlook. According to GM's documents to the National Highway Traffic Safety Administration (as a PDF), dirt can get into a portion of the strut that holds up the hatch and cause the part to prematurely fail. There's a redundancy in place called the Prop Rod Recovery system that's designed to shut the liftgate if there's a malfunction. However, if the breakdown happens too quickly after the hatch is opened the prop rod might not work the way it's supposed to. If someone were in the way of the falling liftgate, they could be hurt. For the repair, dealers will update the software for the power liftgate actuator motor control unit to prevent the hatch from closing so quickly. They'll also check the operation of the system afterward. Related Video: RECALL Subject : Liftgate Struts may Fail and Liftgate may Fall Report Receipt Date: JUN 30, 2015 NHTSA Campaign Number: 15V415000 Component(s): STRUCTURE Potential Number of Units Affected: 686,287 All Products Associated with this Recall Vehicle Make Model Model Year(s) BUICK ENCLAVE 2008-2012 CHEVROLET TRAVERSE 2009-2012 GMC ACADIA 2007-2012 SATURN OUTLOOK 2007-2010 Details Manufacturer: General Motors LLC SUMMARY: General Motors LLC (GM) is recalling certain model year 2008-2012 Buick Enclave vehicles manufactured January 3, 2007, to February 29, 2012, 2009-2012 Chevrolet Traverse vehicles manufactured July 6, 2008, to February 29, 2012, 2007-2012 GMC Acadia vehicles manufactured September 15, 2006, to February 29, 2012, and 2007-2010 Saturn Outlook vehicles manufactured August 17, 2006, to March 18, 2010. The affected vehicles, equipped with the power liftgate option, have gas struts that hold the power liftgate up when open. These struts may prematurely wear and the open liftgate may suddenly fall. CONSEQUENCE: If the open liftgate unexpectedly falls, it may strike a person, increasing their risk of injury. REMEDY: GM will notify owners, and dealers will update the software for the power liftgate actuator motor control unit so that the motor will prevent the rapid closing of the lift gate, free of charge. The manufacturer has not yet provided a notification schedule.

2019 Hyundai Kona Electric First Drive Review | No compromises

The results of last week's United Nations climate study reveal that Earth's climate situation is much more dire than previously thought. Unless we do something drastic to stop pumping carbon emissions into our atmosphere, we'll do irreversible damage by 2030. It seems almost prophetic, then, that Hyundai is launching two vehicles — the hydrogen-powered Nexo FCV and an all-electric variant of the recently launched Kona crossover. The more compelling of the two is the Hyundai Kona Electric. It joins other purely battery-powered machines such as the Nissan Leaf, the Chevy Bolt and the Tesla Model 3, but the Korean automaker one-ups the competition by arriving in the form of a crossover. Americans can't get enough of them, and no other pure electric on the market offers it unless you're talking about the $83,000 Tesla Model X. The Kona EV's next closest competitor is the boxy electric Soul, and in case you didn't know, Kia's affiliate company is none other than Hyundai. In truth, the crossover moniker isn't entirely accurate. Like its internal-combustion-engined counterpart, the Kona EV doesn't really sit above regular car height. Rather than call it a compact crossover, it'd be more appropriate to label it a hatchback with some rugged-looking body cladding. The Kona Electric does, however, top nearly all of its EV rivals for cargo space, with 19.2 cubic feet. Only the Leaf tops it at 23.6 cubic feet, but the Kona's footprint is almost a foot shorter than the Nissan's. Visually, the Kona Electric is distinguished from its petrol-powered sibling by a grille-less face, replaced by an LCD readout grid pattern with the charging port neatly hidden beneath a panel on the left side. A new light bar spans the prow, connecting the upper driving lights in a digital wave pattern repeated in the lower front, side and rear skirts. It's meant to evoke the pathways in a circuit board, according to senior chief designer Chris Chapman. Inside, more differences serve to remind you that you're sitting not just at the helm of a crossover, but a shuttle to the future. An array of PRND buttons and an electronic parking brake await your instructions. Neither seemed necessary nor an improvement over the Kona classic's tried-and-true gear selector and handbrake, but there they were. The e-e-brake perhaps does permit the double-decker center console, though, the lower level meant for gadget recharging, whether via USB or Qi wireless.