1972 Cadillac Eldorado Base Hardtop 2-door 8.2l 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

First Cadillac ELR rolls off the line

Gearing up for the Belle Isle Grand Prix this weekend, General Motors invited some of the Chevrolet and Cadillac racecar drivers out to its Detroit-Hamtramck assembly plant. While there, the racers - including IndyCar Driver and Chevrolet Volt owner, Simona De Silvestro - witnessed the very first 2014 Cadillac ELR to roll off the assembly line.
These vehicles are not destined for customers, however, but instead pre-production units will be used by engineers for testing purposes. Actual production of ELR consumer models is expected to commence closer to the end of this year. As a refresher, this range-extended electric Cadillac shares much of its powertrain with the Volt but will have a sportier coupe design inspired by the Converj Concept. De Silvestro manged to snap a few images of here own, which you can see in the gallery below.

eBay Find of the Day: Ryan Gosling Eldorado from Lost River

What's better than a car connected to Ryan Gosling? A car connected to Ryan Gosling and Matt Smith (the eleventh Doctor Who for our less nerdy readers). This 1966 Cadillac Eldorado convertible is driven by Smith in Lost River, Gosling's directorial debut. The movie was filmed in Detroit, with plenty of footage at the Packard factory, and the car is located in the nearby enclave of Hamtramck. Truth be told, this car has questionable star appeal and it needs a lot of work. Lost River currently holds a 20% fresh rating on Rotten Tomatoes. I've never seen an episode of any Doctor Who – a fact that amazes Seyth Miersma. And while I agree with Kroll Show character Wendell Shawn that Gosling is a "beautiful idiot," that's not enough for me to buy a car with an exhaust leak. The body on this Eldorado looks clean, but there is plenty of restoration work for the next owner. The listing states that most of the exterior and trim needs to be installed, and the front seats are in rough shape. Other details are vague – the carburetor "might need to be rebuilt" and the radiator and fan "may need to be replaced" but neither statements explain why. On the upside, the 340 horsepower (gross rating), 429 cubic inch V8 runs well. Reserve is not met at the current price of $4,000, but this could be a chance to get a classic '60's convertible for cheap. Featured Gallery eBay 1966 Cadilac Eldorado View 18 Photos News Source: eBay Celebrities TV/Movies Cadillac Auctions ebay Find of the Day celebrity ryan gosling