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'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).

Recharge Wrap-up: Indianapolis to switch 425 fleet vehicles to EVs, Chevy Corvette provides bat habitats

Indianapolis will deploy 425 battery electric and plug-in hybrid vehicles as part of its municipal fleet by 2016. The fleet will include such cars as the Nissan Leaf, Chevrolet Volt and Ford Fusion Energi. The city will also reduce its overall fleet by 100 vehicles. In all, the revised group - called the "Freedom Fleet" - will save $8.7 million and 2.2 million gallons of gasoline over 10 years. Read more at Hybrid Cars. EVs with longer range would make vehicle-to-home and vehicle-to-grid energy management systems more practical for the US. The idea of using EVs as energy storage for emergencies or times of high grid demand is currently being tested in Japan with Nissan's Leaf-to-Home system. The US is also interested in such capabilities, but the higher average energy use of American households would make larger batteries in EVs ideal for grid storage applications. Read more at Green Car Reports. LG Chem has broken ground on its EV battery plant in Nanjing, China. The factory, when constructed, will have a capacity of producing batteries for 100,000 cars per year according to the Korean company. The plant will supply batteries for Chinese automakers such as SAIC and Qoros. Construction is expected to be finished by the end of 2015 and LG Chem expects revenue of more than $933 million by 2020. Read more in the press release below. General Motors is using adhesive used in the Chevrolet Corvette Stingray to create habitat for threatened bat species. Artificial bat caves could help alleviate white-nose fungus that leads to diminished bat populations. Leftover adhesive is used to create stalactites in the artificial caves, allowing them more structure to hang from. GM has also provided Volt battery covers to create nesting habitats for bats, which eat harmful insects and help pollinate plants. See the videos and read more in the press release below. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. LG Chem officially breaks ground for China EV battery plant Seoul, Korea - Oct 30, 2014 – LG Chem, Korea's leading manufacturer of advanced batteries, held a ground breaking ceremony for the construction of electric-car battery plant in Nanjing, China, to meet growing demand in the world's biggest car market.

PickupTrucks.com's latest test results in a familiar winner [w/video]

PickupTrucks.com has gone and thrown the latest batch of half-ton pickups into a cage match to see who would come out on top. The site put the 2014 Chevrolet Silverado 1500, GMC Sierra 1500, 2013 Ford F-150, Ram 1500, Toyota Tundra and Nissan Titan through a battery of tests. Those included 0-60 miles per hour acceleration, 60-0 mph deceleration, fuel economy, a hill climb, and payload and towing. They even threw the rigs on an autocross course to evaluate overall handling. Each truck was given points based on how it scored in each evaluation.
Who came out on top? Somewhat surprisingly, the 2013 Ford F-150 walked away with the gold, though fewer than 50 points separated first and fourth place. Head over to PickupTrucks.com to read the full evaluation and the final results. You may be shocked to see exactly where some of the segment's newest additions placed. You can also watch a video on the test below.