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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).

What to see at the Detroit Auto Show 2023

The 2023 North American Auto Show — also known as the Detroit Auto Show — is underway downtown. If you want to attend the public days of the show taking place September 16-24, hereÂ’s what you need to know about attending. But now that Autoblog has done our reconnaissance during the showÂ’s press days, we can tell you about the actual cars (and other things) you can see and experience. WhatÂ’s new? Ford The big new item from Ford is the 2024 F-150 pickup. You can check out the new trick tailgate, and see what the fuss is all about. The 2024 F-150 Raptor also debuted at the show, if you like high-power, off-roady full-size pickups. The show will also be a good opportunity to see the Mustang Dark Horse and Mustang Mach-E Rally up close and personal. Unfortunately, we only saw the wild 2025 Mustang GTD at an offsite event during press days, but it's quite possible Ford will roll it out for the public. Cadillac Cadillac revealed its refreshed 2025 CT5 at the Detroit show, and you can get a look at the revised front and the new tech-focused interior. Cadillac recently unveiled the all-electric 2025 Escalade IQ, so you can stop and see the most powerful Escalade ever while youÂ’re there. It wasnÂ’t on the floor during media days, but Cadillac told us theyÂ’d bring it for the public part of the show. Jeep Jeep unveiled its 2024 Gladiator at the show, and you can check out the new interior and trim levels in person at the Jeep stand. Jeep also has an indoor track set up for ride-alongs. If you havenÂ’t had the chance to see the refreshed 2024 Wrangler yet, you can see that, too, along with examples from the rest of the Jeep lineup, along with its Stellantis sibling, Ram. GMC GMC showed off the new, larger 2024 Acadia SUV for the Detroit Auto Show. ItÂ’s bigger than before, but does more to differentiate itself from its Chevy cousin, the Traverse. GMC also has its Sierra EV on display if youÂ’re interested in catching that in person. What else to see A number of automakers have large displays at the show with many of their models represented. In addition to those who debuted something new at the show, Buick, Chevrolet (check out the Silverado, Blazer and Equinox EVs, as well as the Corvette E-Ray), Lincoln with the new Nautilus, Toyota (get a look at the new Tacoma), Volkswagen, Honda, Kia, Hyundai, Mini, Volkswagen, Honda, Chrysler (the Airflow concept is there), Fiat, Ram and Dodge (see the Charger Daytona SRT concept) all have a sizable presence.

2015 Chevy Colorado and GMC Canyon order guides reveal added power

General Motors' Fleet Order Guide system is often the canary in the coal mine for interesting changes on new models. The recent guide for the 2015 Corvette unveiled all sorts of changes that weren't yet known about the sports car. Now, it's time for the 2015 Chevrolet Colorado and GMC Canyon to take their bow in the spotlight, and they look worth the wait. The new midsize trucks are getting a touch more power than first thought, as well as some very nice features.
Extended Cab models of both trucks come standard with a 2.5-liter, direct-injected four-cylinder rated at 200 horsepower at 6,300 rpm and 191 pound-feet of torque at 4,400 rpm. That's a bit more than the 193 hp and 184 lb-ft originally reported for the duo. The standard transmission for the extended trucks is a six-speed manual, but the Work Truck trim is also available with an optional six-speed automatic. Towing for the four-cylinder is rated at 3,500 pounds.
Crew Cab models come standard with a 3.6-liter V6 with 305 hp at 6,800 rpm and 269 lb-ft of torque at 4,300 rpm, with a six-speed automatic. That's also somewhat different than the originally reported rating of 302 hp and 270 lb-ft. Towing for the V6 is rated at 7,000 pounds.