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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).

Which electric cars can charge at a Tesla Supercharger?

The difference between Tesla charging and non-Tesla charging. Electrify America; Tesla Tesla's advantage has long been its charging technology and Supercharger network. Now, more and more automakers are switching to Tesla's charging tech. But there are a few things non-Tesla drivers need to know about charging at a Tesla station. A lot has hit the news cycle in recent months with regard to electric car drivers and where they can and can't plug in. The key factor in all of that? Whether automakers switched to Tesla's charging standard. More car companies are shifting to Tesla's charging tech in the hopes of boosting their customers' confidence in going electric.  Here's what it boils down to: If you currently drive a Tesla, you can keep charging at Tesla charging locations, which use the company's North American Charging Standard (NACS), which has long served it well. The chargers are thinner, more lightweight and easier to wrangle than other brands.  If you currently drive a non-Tesla EV, you have to charge at a non-Tesla charging station like that of Electrify America or EVgo — which use the Combined Charging System (CCS) — unless you stumble upon a Tesla charger already equipped with the Magic Dock adapter. For years, CCS tech dominated EVs from everyone but Tesla.  Starting next year, if you drive a non-Tesla EV (from the automakers that have announced they'll make the switch), you'll be able to charge at all Supercharger locations with an adapter. And by 2025, EVs from some automakers won't even need an adaptor.  Here's how to charge up, depending on which EV you have:  Ford 2021 Ford Mustang Mach-E. Tim Levin/Insider Ford was the earliest traditional automaker to team up with Tesla for its charging tech. Current Ford EV owners — those driving a Ford electric vehicle already fitted with a CCS port — will be able to use a Tesla-developed adapter to access Tesla Superchargers starting in the spring. That means that, if you own a Mustang Mach-E or Ford F-150 Lightning, you will need the adapter in order to use a Tesla station come 2024. But Ford will equip its future EVs with the NACS port starting in 2025 — eliminating the need for any adapter. Owners of new Ford EVs will be able to pull into a Supercharger station and juice up, no problem. General Motors Cadillac Lyriq. Cadillac GM will also allow its EV drivers to plug into Tesla stations.

Recharge Wrap-up: EV torque secrets, UC Davis maps future of biofuels

A UC Davis white paper maps out "Three Routes Forward for Biofuels," balancing investment risk with carbon benefits. The first option is "incremental," in which we tinker with the existing biofuel manufacturing infrastructure for small improvements over time. The "transitional" plan suggests integrating cellulosic production and other innovations with existing operations. The third route, called "leapfrogging," would mean building refineries based on new technology such as cellulosic and algae-based biofuels. The paper suggests ways the US could use these three routes together in different areas, and predicts the payoffs in terms of carbon emissions could be significant if the right people are willing to risk the capital. After all, financial advisers are always telling investors to diversify their portfolios to manage risk and rewards in the same way. Read more over at the UC Davis Institute of Transportation Studies. The Formula E Long Beach ePrix will offer free admission. The seventh round of the inaugural all-electric race season, which was moved from Los Angeles to the streets of Long Beach, will offer fans free grandstand and general admission. The race, which takes place on April 5, 2015, will use a 1.6-mile portion of IndyCar's Grand Prix of Long Beach. Read more at LA Times. Polaris is now offering its 2015 GEM electric vehicles, including the new street-legal eM1400 LSV. The passenger and utility vehicles come in two- to six-passenger configurations, many of which are street legal on roads with posted speed limits of up to 35 miles per hour. The eM1400 LSV utility vehicle seats two, offers 1,250 pounds of payload, 1,250 pounds of towing capacity, a top speed of 25 mph and a range of up to 45 miles. Its on-board charger plugs into any standard 110-volt outlet. Read more at Hybrid Cars and check out all the different configurations yourself at the Polaris website. In EVs, more torque does not always equal faster. Green Car Reports found this out when driving the Fiat 500e (with 147 pound-feet) against the similarly weighted Chevrolet Spark EV (with 400 pound-feet). The secret is, at least in part, in the gearing. The Fiat has a 9.6:1 reduction gear, making it quicker at lower speeds despite having far less available torque, while the Chevy uses a 3:1 ratio. The trade-off though, is in top speed. Furthermore, Chevy electronically limits the torque delivery at low speeds, as 400 pound-feet is a lot of launch for the little Spark EV to handle.