2008 Chevrolet Tahoe on 2040-cars

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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: Chevy Impala bi-fuel sales; VW e-Up fire

Chevrolet has delivered about 200 units of its bi-fuel Impala so far. The automaker originally planned to begin sales in summer of 2014, but was delayed over a year due to quality concerns. Now, the bi-fuel Impala, which runs on both gasoline and CNG, has begun delivery, mostly to commercial and fleet customers. The car begins at $38,210 (including destination charges), and will be available at 3,200 US dealerships. Production of a 2016 model is underway. Read more at Green Car Reports. The US Department of Energy (DOE) has announced $35 million in funding for hydrogen and fuel cell technology projects. The money will support research and development, manufacturing, and early deployment of the technologies. The DOE also wants to bring together consortia to work together on fuel cell cost, performance, and durability, as well as hydrogen storage research. "As FCEVs become increasingly commercially available, the Energy Department is focused on advancements to enable hydrogen infrastructure including production, delivery, storage, and manufacturing, as well as continuing to reduce fuel cell cost and improve durability," the DOE said in a statement. Read more from the DOE. A Volkswagen e-Up! caught fire after a collision with a train in Norway. The driver, Christopher Traasdahl Saether, was able to jump from the electric Volkswagen before the train hit, and was physically unharmed. It also appears that there were no injuries among the passengers on the train. "It was quite a way to start the day," says Saether. A photographer at the scene reported that the car burst into flames when a salvage crew attempted to remove the wreckage from the railway crossing. See the video and read more (in Norwegian) from Fredriksstad Blad. Featured Gallery 2015 Chevrolet Impala Bi-Fuel View 14 Photos Related Gallery 2014 Volkswagen e-Up!: Quick Spin View 20 Photos News Source: Green Car Reports, DOE, Fredrikstad BladImage Credit: Chevrolet Government/Legal Green Chevrolet Volkswagen Alternative Fuels Safety Electric Natural Gas Vehicles recharge wrapup

2016 Chevrolet Camaro Beauty-Roll

For those of you paying attention, we've really ramped up the old Autoblog video game these days. Our new series Car Club USA joins Translogic and The List, and there are more Daily Drivers and Short Cuts than ever. But sometimes, all you care about is the car. The Autoblog Beauty-Roll video series has one goal: bring you glossy video images of cars, and nothing but. We're collecting moving pictures of all the cars we test, inside and out. Each episode comes with a hit of engine sound – start-up and with a few revs – to round out the package. Set your resolution to max, kick it into full-screen, turn up the sound, and enjoy today's subject, the 2016 Chevrolet Camaro. Oh, and if you'd like more Beauty-Roll, click here to see the back catalog.