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Consumer Reports criticizes small turbo engines for misleading performance, fuel economy claims [w/video]

Consumer Reports has taken aim at at small-displacement, forced-induction engines, saying the powerplants don't manage to deliver on automaker fuel economy claims. Manufacturers have long held that smaller, turbocharged engines pack all power of their larger displacement cousins with significantly better fuel economy, but the research organization says that despite scoring high EPA economy numbers, the engines are no better than conventional drivetrains in both categories. Jake Fisher, director of automotive testing for Consumer Reports, says the forced induction options "are often slower and less fuel efficient than larger four and six-cylinder engines."
Specifically, CR calls out the new Ford Fusion equipped with the automaker's Ecoboost 1.6-liter four-cylinder engine. The institute's researchers found the engine, which is a $795 option over the base 2.5-liter four-cylinder, fails to match competitors in acceleration and served up 25 miles per gallon in testing, putting the sedan dead last among other midsize options.
The Chevrolet Cruze, Hyundai Sonata Turbo and Ford Escape 2.0T all got dinged for the same troubles, though Consumer Reports has found the turbo 2.0-liter four-cylinder in the BMW 328i does deliver on its promises. You can check out the full press release below. You can also read the full study on the Consumer Reports site, or scroll down for a short video recap.

'Killing a Duramax' Gale Banks YouTube series methodically tunes a diesel to death

Learning or perfecting a skill by watching YouTube videos is known as attending YouTube University. GM Authority picked up on one of the video site's more fascinating courses, hosted by Gale Banks; in a fair world, he should be referred to as Professor Banks when it comes to diesel engines and truck tuning. A few months after GM introduced the updated L5P 6.6-liter Duramax diesel V8 in the 2020 Chevrolet Silverado HD and GMC Sierra HD that ships with 454 horsepower and 910 pound-feet of torque, Banks decided he wanted to methodically tune the engine to death. The purpose of the resulting series, called "Killing a Duramax," is to push more power out of the engine in order to discover which parts break and when — or, as Banks puts it, force-feed the Duramax "until the crank hits the street and the heads hit the hood." With that knowledge, Banks can figure out all the weak points on his way to building what he calls a "Superturbo," that being a supercharged, twin-turbo race engine with more than 1,000 hp. What makes the series fascinating is Banks' knowledge, paired with the company's comprehensive iDash engine monitoring system that keeps tabs on a glut of parameters every step of the way. So for instance, you get Banks explaining the differences between inches of mercury and barometric pressure, how those are different from the water content of the air measured in grains, then showing those readouts on the iDash, then explaining in detail how they affect the air density in the Duramax system. The stock Borg-Warner variable turbo gets a lot of airtime — Banks accuses it of being "out to lunch" because he feels it's the weakest link on the engine. That turns into a turbo teardown and a deep explanation of performance pitfalls, such as when air pressure on the turbine begins to diverge from the boost pressure coming from the compressor. Banks says he can keep close tabs on where power's coming from, because the iDash monitors the horsepower contribution provided by the ambient air, the turbo, and the intercooler separately. The major changes so far are a stouter Precision 7675 turbo and TurboSmart wastegate (episode 5), a twin intake (episode 6), a custom liquid-cooled intercooler from a marine engine, a new GM oil cooler and synthetic oil (episode 10), and new injectors (episode 11).

Ford also working on 200-mile EV to compete with Bolt, Model 3

The Chevrolet Bolt is on a lot of people's radars. You may have even noticed friends and colleagues who harbor very little interest in the automotive world, or anything labeled as "green," who have taken notice of a 200-mile electric vehicle coming out of Detroit. Mass appeal is the idea, after all. You can include Ford in the list of interested parties, in this case with the intention of taking direct aim at the Bolt – and, by proxy, the Tesla Model 3 – with an affordable, long-range EV of its own. Ford will unveil its own long-range EV, positioned to compete with Chevrolet, later this year, according to Automobile. Details are very scarce about Ford's plans, but we do know that the Bolt (or whatever the Chevy all-electric hatchback will end up being called) is expected to offer over 200 miles of driving between charges, with a sticker price around $30,000. The other major player, of course, is Tesla's smaller, more affordable sibling to the Model S. The Model 3, also slated to go on sale in 2017, should cost less than $40,000. While Tesla has established itself in the EV world, another long-range EV out of Detroit would win some customers from the California-based startup. For now, though, we'll just have to wait, as Ford remains tight-lipped about its plans for the car. Automobile predicts a possible unveiling at the Los Angeles Auto Show in November, what with California's EV mandate being a driver of strategy for various automakers. Most can agree, though, that a larger field of options – while not ideal for backers of the Bolt or Model 3 – will only benefit the car-buying public. Related Video: Featured Gallery Chevrolet Bolt EV Concept: Detroit 2015 Related Gallery Chevrolet Bolt EV Concept News Source: AutomobileImage Credit: Copyright 2015 Sebastian Blanco / AOL Green Rumormill Chevrolet Ford Tesla Electric Future Vehicles Chevy Bolt ford ev