1998 Gmc Sonoma Sle Extended Cab Pickup 3-door 4.3l 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).

3 Quick Takes on the new Hummer EV

The 2022 GMC Hummer EV truck debuted Tuesday with 1,000 horsepower and up to 350 miles of range. It marks the return of the Hummer name after a decade-long absence and is the most ambitious electric vehicle General Motors has attempted. Here are three quick takes. This is how major vehicles will be revealed going forward The unveiling during Game 1 of the World Series on Fox and during The Voice on NBC could only have been bigger if done during the Super Bowl. A two-network debut complete with LeBron James providing voiceover for the commercial. On Fox, World Series play-play man Joe Buck neatly set up the spot and told millions of viewers that the order bank was now open. Then the Hummer debuted in what looked like a cut from the next Transformers movie. OK, this is not how every major car will be revealed, but the direct-to-consumer, as-many-eyeballs-as-possible, made-for-TV (or social media) event will be a key strategy going forward. In the last few months, the Detroit, Los Angeles and New York auto shows have all played leapfrog with dates, confusing many observers. The pandemic has obviously exacerbated the decline of auto shows, but if you’re an automaker, why share the spotlight in a convention hall? Most car reveals wonÂ’t be network TV spectacles, like the Hummer, but streaming services and other platforms will make a lot more sense than traditional means as companies compete for new buyers. This is how the Tesla Cybertruck should have looked Most would say the Hummer is pretty cool looking. The headlights, the grille, the blocky fenders and huge wheels — yeah, this looks straight out of central casting. ItÂ’s what you expected the reborn Hummer to look like, nominally now in the service of the GMC brand. Tesla made the Cybertruck a bit too crazy. Sure, itÂ’s attention-getting. But look at the Tesla. No one can objectively say the Cybertruck is aesthetically pleasing, from the shape to the features. ItÂ’s out-of-step with the graceful Model S and Model 3 sedans. The Hummer is futuristic, has interesting elements — like underbody cameras for off-roading and a T-top — and a massive presence. It doesnÂ’t need to do more. The addition of Super Cruise technology, however, is a nice touch. GM is serious about EVs The Hummer leads a blitz of EVs from GM, which is quietly yet ambitiously laying out an electric future.

Full-size trucks are the best and worst vehicles in America

You don’t need me to tell you that Americans love pickup trucks. And the bigger the truck, the more likely it seems to be seen as an object of desire. Monthly and yearly sales charts are something of a broken record; track one is the Ford F-Series, followed by the Chevy Silverado, RamÂ’s line of haulers, and somewhere not far down the line, the GMC Sierra. The big Japanese players fall in place a bit further below — not that thereÂ’s anything wrong with a hundred thousand Toyota Tundra sales — and one-size-smaller trucks like the Toyota Tacoma, Ford Ranger and Chevy Colorado have proven awfully popular, too. Along with their sales numbers, the average cost of new trucks has similarly been on the rise. Now, I donÂ’t pretend to have the right to tell people what they should or shouldnÂ’t buy with their own money. But I just canÂ’t wrap my head around why a growing number of Americans are choosing to spend huge sums of money on super luxurious pickup trucks. Let me first say I do understand the appeal. People like nice things, after all. I know I do. I myself am willing to spend way more than the average American on all sorts of discretionary things, from wine and liquor to cameras and lenses. IÂ’ve even spent my own money on vehicles that I donÂ’t need but want anyway. A certain vintage VW camper van certainly qualifies. I also currently own a big, inefficient SUV with a 454-cubic-inch big block V8. So if your answer to the question IÂ’m posing here is that youÂ’re willing to pay the better part of a hundred grand on a chromed-out and leather-lined pickup simply because you want to, then by all means — not that you need my permission — go buy one. The part I donÂ’t understand is this: Why wouldn't you, as a rational person, rather split your garage in half? On one side would sit a nice car that is quiet, rides and handles equally well and gets above average fuel mileage. Maybe it has a few hundred gasoline-fueled horsepower, or heck, maybe itÂ’s electric. On the other side (or even outside) is parked a decent pickup truck. One that can tow 10,000 pounds, haul something near a ton in the bed, and has all the goodies most Americans want in their cars, like cruise control, power windows and locks, keyless entry, and a decent infotainment screen.