1957 Chevrolet Bel Air 2 Door Post 350 Crate With 4 Speed Manual Transmission 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 over 40,000 Chevy, Pontiac and Saturn models over fuel pump woes

The National Highway Traffic Safety Administration has issued a recall for a number of General Motors cars and crossovers bought or currently registered in the hot-climate states of Arkansas, Arizona, California, Nevada, Oklahoma and Texas. As many as 40,859 units consisting of the 2007 Chevrolet Equinox, Pontiac Torrent and Saturn Ion and the 2007-2009 Chevrolet Cobalt (shown) and its Pontiac G5 twin are being recalled for potential fuel leaks.
This recall is being issued due to potentially faulty fuel pump components that can crack and cause gasoline to leak from the return or supply ports and possibly cause a fire. NHTSA has not indicated how many fuel leaks or vehicle fires have been reported. As a fix, GM will replace the fuel pump modules on all affected vehicles free of charge. Since Pontiac and Saturn have been shuttered, owners will be able to go to another GM-brand dealership to have their vehicles repaired.
While the list of affected cars and crossovers varies by state and model year, if you own any of these models and live in Arizona, California, Florida, Nevada, Oklahoma or Texas, be sure to check the official notice below for more details.

Anti-purist 1963 Ferrari GTE sports hot rod Chevy V8

I remember reading a story around the time Fast and Furious: Tokyo Drift came out. It focused on one of the star cars of that film, a 1967 Ford Mustang fastback that started the film as a shell, and in a pinch, was transformed into a modified masterpiece, complete with the RB26DETT engine from a Nissan Skyline GT-R (which started the film under the hood of an S15 Silvia). There was a genuine (and in our minds, absurd) fear in the article that taking a piece of classic American iron and fitting a twin-turbocharged JDM engine would result in some awful trend in the classic car community. If you thought a GT-R-powered classic Mustang was sacrilege, though, this car will probably make you vomit. For the rest of us, it's a neat piece of engineering. Shown above is a 1963 Ferrari 250 GTE, and yes, that's a 302-cubic-inch, small-block Chevrolet V8 under the hood. On top of that, it uses the six-speed manual transmission from a Viper, a nine-inch Ford rear end, and Mitsubishi-sourced paint. So yeah, it's a FrankenFerrari. Check out Road Heads' interview with this custom GTE's owner, which is followed by a brief test drive. And of course, head into Comments afterwards, and let us know what you think. Is this Yankee-powered 250 GTE blasphemous or badass?