2001 Chevrolet Corvette Z06 Coupe 2-door 5.7l 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

Chevrolet Camaros at SEMA are a mobile accessory catalog

Chevy's goal at the SEMA Show in Las Vegas this week seems to be to show as much of its Performance and Accessories catalog as possible. That's why it brought three different Camaros - two with V8s and one powered by a V6 - with all of the best goodies from the catalog already fitted.
We gave a more in-depth recap of the Performance Camaro V8 Concept, the Performance Camaro V6 Concept and the Performance Garage Concept already, but we figured you'd like a short recap for each. It should be noted, though, that you can order all of the items you see here for your own Camaro, so be sure to take a long, hard look at our live galleries, just in case you're in the market for some mods.
Essentially, the Performance Garage Concept and the Performance V8 Concept are the same car - the only difference is that the later features a whole host of aesthetic tweaks in addition to its aftermarket, shorty exhaust headers and 2.75-inch exhaust. (The Performance Garage Concept has been usefully placed on its side; the better to see the new parts added to the vehicle.) The Performance V6 Concept is notable because, despite being a V6, there's no shortage of performance goodies fitted. All three of the Performance Camaros benefit from items from the Camaro ZL1, which can also be ordered through the catalog.

Crash victim found still inside car 6 hours after it was towed away [w/video]

Police near Dayton, OH, have quite a confusing case on their hands after the victim of a crash early on New Year's Day couldn't initially be found. Six hours later, the man was discovered lying on the vehicle's floorboard at the tow yard. The unidentified person was admitted to a local hospital in critical condition with possible leg injuries. The police first responded to the scene of the crash around 3:00 am on New Year's Day when a Chevrolet Impala hit a utility pole and drove through a fence, according to WHIO News. The authorities claim that they searched for the man for an hour and a half and came up with nothing. The car was then hauled away to the yard, which was only about 500 feet away. The tow yard worker found the man around 9:00 am and called 911. However, he was clearly dubious about the injured man's predicament and suggested to the operator that he might have returned to the Impala. Police are still investigating the incident. According to WHIO, authorities might have somehow missed the man in the sedan during the search. Alternatively, he could have left the scene of the accident and later returned. Watch the video below for more about this bizarre case. The video meant to be presented here is no longer available. Sorry for the inconvenience. News Source: WHIO via Yahoo Autos Chevrolet Police/Emergency Videos Sedan