72 Nova Ss Replica Frame Off Restoration 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 521,817 cars in two campaigns

General Motors is issuing two, separate recalls covering a total of 521,817 vehicles worldwide. The larger campaign covers 468,887 units of the 2011-2012 Chevrolet Malibu. Specifically, 437,045 of these are in the US, and the rest are outside the country. In these sedans, a steel cable that connects the seat belt to the vehicle can fatigue and separate. GM knows of 36 claims about the problem but only one minor injury. According to The Detroit News, this happened when a taxi driver hit his head. To fix things, dealers will replace the "outboard lap mounting bracket," which will move the tensioner rearward. They'll also inspect and if necessary replace the steel cable and lap pretensioner. In the second campaign, 52,930 examples the 2015 Chevy Colorado and 2015 GMC Canyon have seat frame attachment hooks that were installed incorrectly during assembly. GM hasn't received any reports of crashes, injuries, or fatalities about this problem. Dealers will inspect the affected trucks and repair as necessary. GM spokesperson Alan Adler told Autoblog that he didn't yet have a specific date when affected owners would receive official mailings about either of these recalls. GM Statement General Motors is recalling 48,309 2015 model year Chevrolet Colorado and GMC Canyon midsize pickup trucks in the U.S. because certain seat frame attachment hooks were not properly attached to the vehicle body during assembly. Dealers will inspect the potentially affected seats for proper installation and repair if necessary. GM knows of no crashes, injuries or fatalities related to this condition. The total vehicle population of the recall is 52,930 including 4,620 vehicles sold in Canada. General Motors is recalling 437,045, 2011-2012 model year Chevrolet Malibus in the U.S. because the flexible steel cable that connects the safety belt to the vehicle can fatigue and separate over time as a result of occupant movement in the seat. Dealers will replace the outboard lap mounting bracket to relocate the tensioner slightly rearward. Dealers will inspect the cable and, if necessary, replace the lap pretensioner. GM knows of 36 claims, no crashes or fatalities and one minor injury reportedly related to the condition. The total vehicle population of the recall is 468,887 including Canada, Mexico and exports.

Autoblog's guilty pleasure cars

Guilty pleasures are part of life – don't even try to pretend like you don't have one (or two, or six). In the non-automotive space, this could come down to that secret playlist in your iPhone of songs you'll only listen to when you're alone; or think of that one TV show you really do love, but won't admit to your friends. I've got plenty, and so do you. Going back to cars, here's a particularly juicy one for me: several years ago, I had a mad crush on the very last iteration of the Cadillac DTS. Oh yes, the front-wheel-drive, Northstar V8-powered sofa-on-wheels that was the last remaining shred of the elderly-swooning days of Cadillac's past. Every time I had the chance to drive one, I was secretly giddy. Don't hate me, okay? These days, the DTS is gone, but I've still got a mess of other cars that hold a special place in my heart. And in the spirit of camaraderie, I've asked my other Autoblog editors to tell me some of their guilty pleasure cars, as well – Seyth Miersma, as you can see above, has a few choice emotions to share about the Mitsubishi Lancer Evolution. Read on to find out what cars make us secretly happy. Mercedes-Benz SL65 AMG This decadent convertible is the epitome of the guilty pleasure. It's big, powerful, fairly heavy and it's richly appointed inside and out. It's a chocolate eclair with the three-pointed star on the hood. Given my druthers, I'd take the SL65 AMG, which delivers 621 horsepower and 738 pound-feet of torque. That output is borderline absurd for this laid-back convertible. I don't care. You don't need dessert. Sometimes you just crave it. The SL line is about the feel you get on the road. The roof is open. The air, sun and engine sounds all embrace you. It's the same dynamic you could have experienced in a Mercedes a century ago, yet the SL gives you the most modern of luxuries. An Airscarf feature that warms my neck and shoulders through a vent embedded in the seat? Yes, please. Sure, it's an old-guy car. Mr. Burns and Lord Grantham are probably too young and hip for an SL65. I don't care. This is my guilty pleasure. Release the hounds. – Greg Migliore Senior Editor Ford Flex I drove my first Flex in 2009 when my mother let me borrow hers for the summer while I was away at college. The incredibly spacious interior made moving twice that summer a breeze, and the 200-mile trips up north were quite comfortable.