1966 Chevy Nova Gasser 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

Buick Encore, Chevy Trax reportedly dead after 2022

The Buick Encore will not get an encore, and the Chevrolet Trax is dead in its tracks. Separate unverified reports say the two crossovers, which are essentially identical underneath the sheetmetal, will retire at the end of the 2022 model year without being directly replaced. Citing anonymous sources, enthusiast website GM Authority wrote that production of the Encore and the Trax is scheduled to end in the third quarter of 2022. Both models are manufactured in Bupyeong-gu, South Korea, and General Motors will reportedly use the extra production capacity to build more examples of the Trailblazer, which outsold the Encore and the Trax combined by a significant margin in 2021. General Motors hasn't commented on the report, but we wouldn't be surprised if the end is indeed near for the Encore and the Trax. Buick released the Encore for the 2013 model year, and Chevrolet launched the Trax for 2015, but the model made its debut as the Opel Mokka in 2012. It's at the end of its life cycle, and sales figures reflect this: 20,072 units of the Encore were sold in America in 2021, a drop of 52% compared to 2020, while 42,590 examples of the Trax found a home, a 60% decline. It's further proof that Americans don't like small cars. Viewed in that light, the decision not to replace either crossover makes perfect sense. If the report is accurate, the Encore GX (which is not related to the Encore in any way) will enter the 2023 model year as Buick's entry-level model. The situation is a little more complicated at Chevrolet: The pocket-sized Spark is on its way out in 2022 as well, meaning that the Trailblazer will become the entry point into the range. It's a different story in Europe: Opel, which is now part of the Stellantis group, released the second-generation Mokka in June 2020.

Recharge Wrap-up: Free chargers for Canadian ELR buyers, Renovo gets funding for EV supercar

Chevrolet offers versions of its Express passenger van with B20 biodiesel and E85 capability. Customers can buy the van with the Duramax turbodiesel V8, which is compatible with the 20-percent biodiesel blend. There is also a FlexFuel V8, which can use the 85-percent ethanol gasoline blend. It's a great option for shuttling the whole soccer team to practice using renewable fuels. Read more at Domestic Fuels. Early buyers of the Cadillac ELR in Canada will get a 240-volt charger installed at their home for free. It should help convince some buyers to adopt the range extended luxury EV. Cadillac's Chief Marketing Officer Uwe Ellinghaus says, "Professional installation of the fastest home-charging unit is a natural way to mark the introduction of ELR to the luxury market." Read more in the press release below. Renovo has received venture capital funding from California-based True Ventures to build its Coupe electric supercar. The impressive EV, with its 500 horsepower and 1,000 pound-feet of torque, is an inspiring vehicle built by a promising company, according to its financial backers. Toni Schneider of True Ventures says that Renovo has "created incredibly advanced technology and a beautiful machine that is well positioned to disrupt the automotive market." Read more in the press release below. Renault says it will build its Fluence ZE electric car in China for an unnamed brand, pending government approval. Chief Executive Carlos Ghosn announced the plan at a test drive event in France on Monday. Renault has a partnership with Dongfeng Motors to build and sell its cars in China. Read more at Reuters. Germany has lifted its ban on Uber. While the German court believes the ride-hailing service is operating illegally without proper licensing for drivers, it says Taxi Deutschland waited too long to file the case against Uber. The taxi association plans to appeal the decision soon. See more in the video below, and read more at The New York Times. A new report from UC Davis claims that a global expansion of public transit could save 1,700 megatons of carbon dioxide yearly and over $100 trillion by 2050. A "high-shift scenario" would be necessary, wherein governments invest in rail and clean buses, expand biking and walking infrastructure and shift focus away from projects that encourage car use. This shift to public transit would especially be important in the US, China and India. Read more in the press release below.