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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).

UAW rejects GM contract proposal but makes a counter offer

The United Auto Workers union said a new comprehensive offer made by General Motors Co late Monday to end a two-week-old strike was not acceptable and said it had made a new counterproposal. UAW vice president Terry Dittes said in a letter to members "there are many important issues that remain unresolved." The union is awaiting GM's next proposal. He said GM's offer came up short on many issues.  Dittes said GM made a "comprehensive proposal" at 9:40 p.m. Monday. "This proposal that the company provided to us on day 15 of the strike did not satisfy your contract demands or needs. There were many areas that came up short like health care, wages, temporary employees, skilled trades and job security to name a few." Dittes is the union's vice president for GM relations and the UAW's lead negotiator in these contract talks. "We have responded today with a counterproposal and are awaiting GM's next proposal to the union," he wrote. "Regardless of what is publicized in print or social media, etc., there are still many important issues that remain unresolved." The strike, in its third week, has cost GM more than $1 billion, according to J.P. Morgan analyst Ryan Brickman. He said the cost per day in potential profit is $82 million. However, another analysis, by East Lansing-based consultant Anderson Economic Group, put the losses at $25 million a day. And the effects of the strike are expanding. GM said Tuesday the strike has created a parts shortage that forced the automaker to halt production at its pickup and transmission plants in Silao, Mexico, temporarily laying off 6,000 workers. Silao is where GM builds its highly profitable four-door crew cab Chevy Silverado and GMC Sierra pickups. The strike has also forced GM to idle some Canadian workers, and many suppliers have been forced to halt operations. About 48,000 UAW members went on strike on Sept. 16 seeking higher pay, greater job security, a bigger share of the leading U.S. automaker’s profit and protection of their healthcare. 

LG Chem ready to double workforce at plant that makes Volt batteries

With a history that involves paying people not to work, the fact that LG Chem is going to hire more people for its electric-vehicle battery plant in Holland, Michigan is good news on a couple fronts for the Korean company. The South Korea-based LG Chem is holding a job fair at the factory about 30 miles west of Grand Rapids. The company wants to double its workforce this year to "several hundred people." LG Chem, whose factory notably makes the cells for General Motors' Chevrolet Volt extended-range electric vehicle battery, is looking for everything from technical operators to maintenance workers to production supervisors. The company held a previous job fair last September that resulted in about 40 people being hired. The prior year, though, LG Chem gained a measure of infamy after the US Department of Energy (DOE) discovered that workers were, for a time, getting paid to do absolutely nothing because low demand for battery packs made it cheaper for the factory to remain idle. With LG Chem also making electric-vehicle battery components for Ford, Renault, Hyundai, and Volvo, though, those lazy days appear to be long gone. Take a look at LG Chem's press release below. Show full PR text LG Chem Michigan Inc. 2nd Job Fair Will Help To Double Its Holland Workforce HOLLAND, Mich., May 13, 2015 /PRNewswire/ -- LG Chem Michigan Inc. (LGCMI) is conducting a 2nd job fair on Thursday, May 14 as part of the company's efforts to double the size of its production workforce in 2015. LGCMI is an air-conditioned, clean room production environment with strong opportunity for career growth. Over 250 people attended the first job fair and the company is looking for more people to help it grow with increased production volume and new models. The company is adding production equipment and new processes and expects to employ several hundred people by the end of the year. Globally, LG Chem has numerous automakers as clients for EV batteries including GM, Ford, Renault, Hyundai/Kia, Volvo, Audi and Daimler etc. The company's push to build its workforce continues on Thursday, May 14 with an all-day job fair at the company's facilities, located at 1 LG Way in Holland. The event will take place from 9:00 a.m. until 6:00 p.m. and is open to everyone seeking employment opportunities with the company. Prospective candidates should plan to meet with members of LGCMI's staff to learn more about opportunities available at this market-leading, advanced-technology manufacturing company.