2006 Chevrolet Tahoe Z71 Sport Utility 4-door 5.3l 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

GM recalls 668,000 SUVs due to faulty anchor bars for child seats

DETROIT — General Motors is recalling more than 668,000 small SUVs in the U.S. because owners may not be able to hook child seats to the anchors. The recall covers certain 2020 to 2023 Chevrolet Equinox and GMC Terrain SUVs. The National Highway Traffic Safety Administration says in documents posted on its website Thursday that the rear-seat lower anchor bars may have had too much powder coating. That could make them too thick and prevent a child seat from being installed. GM says no crashes or injuries have been reported. The automaker is asking owners to install child seats using the seatbelts until the latches are repaired. Dealers will inspect the anchors and replace the finish if necessary. Owners will be notified by letter starting June 26.   Recalls Chevrolet GM GMC SUV child safety car seat

Kid Rock's Chevy Silverado is a working-class hero [w/video]

Rock stars are known for their swagger, and Kid Rock brings a mountain of that confidence to his design for this chrome-festooned 2016 Silverado 3500HD at the SEMA show. Inspired by his song Born Free and a visit to the pickup factory in Flint, MI, the styling is meant to celebrate the folks that build these trucks everyday. The Silverado sparkles like a beacon under the lights at the SEMA Show thanks to its black metallic-flecked paint and acres of chrome. The shiny stuff covers the custom grille, exhaust stacks, 22-inch wheels, and side steps. In a patriotic nod, silver Stars and Stripes run down the side to offer a little contrast to the dark body. Further emphasizing the pickup's huge size, a trailer carries a pair of Gibbs Sports Quadskis that are decorated to match the truck. Kid Rock takes inspiration from – get this – acid-wash jeans for the interior by combining Sky Cool Gray leather seats with metallic-looking inserts. Appropriate for a musician, there's also a custom Kicker stereo in there, and Made in Detroit logos adorn the door sills and glovebox. Related Video: Show full PR text SILVERADO 3500HD KID ROCK CONCEPT CELEBRATES FREEDOM Boldly styled custom 'dually' truck honors working-class Americans LAS VEGAS – Inspired by his hit song "Born Free," musician Kid Rock collaborated with Chevrolet to design a customized 2016 Silverado 3500HD "dually" that celebrates freedom and honors American workers. The truck was introduced today at the SEMA Show in Las Vegas, where it joined other personalized Chevy truck concepts designed to showcase the depth and breadth of the brand's pickup truck lineup. Michigan-born Kid Rock visited the Silverado HD assembly plant in Flint, Mich., to meet with the members of UAW Local 598, who built the truck, before driving it to Chevrolet's design studio to share his ideas for its customization. "The Flint plant – and everyone on the line – is the backbone of America," said Kid Rock. "I wanted the design for the truck to be bold, but with features and elements that wouldn't be out of reach for working-class guys." As a result, his Silverado features several enhancements, including a custom chrome grille with the Born Free logo and an enlarged Chevy Bowtie emblem, chrome exhaust stacks and patriotic graphics that flow across the body sides. A unique execution of the patriotic motif was an idea he expressed at the start of the project.