2011 Cadillac Escalade Esv Awd/4x4 Nav Rear Cam 35k Mi Texas Direct Auto on 2040-cars

Auto blog

GM patent reveals new two-stage turbocharger

Modern turbochargers may be some of the best ever made, but performance is something that engineers are always trying to improve. According to GM Inside News, General Motors (GM) is hoping to alleviate some of the negative aspects of a two-stage turbocharger setup with a newly-patented design. The patent, that was filed on May 19, 2016, reveals a clever bypass system that allows the engine, a four-cylinder unit, to optimize both the low-pressure and high-pressure inlets for its respective functions. According to the filing, a conventional two-stage turbocharger setup is engineered to allow both turbines to operate simultaneously at low and mid engine speeds. At high engine speeds, only the low-pressure turbine works. The setup can't isolate either the low or high pressure side, which can impair low-end performance. GM's new two-stage turbocharger setup looks to eliminate this by linking the high-pressure turbo to the exhaust manifold through the high-pressure inlet duct. The low-pressure turbo is attached to the high-pressure turbo by a low-pressure inlet duct, which is linked to a connecting channel. A single actuator that is housed in the exhaust manifold creates a bypass that can opens the high-pressure inlet or close the connecting channel. Depending on what the engine load and speed is, the ECU guides the actuator—a single rotating spindle with discs corresponding to flanges on the high and low pressure sides—to isolate one of the two turbos. Isolating the turbos allow the respective inlets to be engineered for the best possible fluid dynamic performance. The setup should increase performance and decrease lag. There's no word on what car this setup will make an appearance on, but it will most likely be used in premium vehicles before trickling down to the rest of GM's vehicles. Related Video: News Source: GM Inside News, AutoGuide via GM Authority Cadillac Chevrolet GM Technology Sedan turbo patent engine turbocharging

2020 Cadillac CT6-V First Drive | A new kind of V

One of the weird tidbits of car news in the past year was the change in naming for the 2020 Cadillac CT6-V. When it was first revealed, it was called V-Sport, the term previously used for Cadillacs with more moderate performance upgrades than the full-blown V cars that possessed massive power outputs and serious track-going capabilities. But then, before the car in question went on sale, Cadillac changed the name to match the equally moderately sporty CT4-V and CT5-V that officially downgraded the V name. So what should we make of this CT6-V, then? Is it a hardcore performance machine like the old V cars? Or is it what we’re expecting of the new V cars: a lightly upgraded version of the base car that isnÂ’t particularly distinguished? As it turns out, the CT6-V sits between these two extremes to create a car thatÂ’s involving and exciting for the driver without compromising the CT6Â’s refinement and luxury. Mechanically, the CT6-V is ultimately closer to its full-bore V predecessors. The highlight is the “Blackwing” twin-turbocharged 4.2-liter V8 that makes 550 horsepower and 640 pound-feet of torque. Besides giving the engine prodigious output, Cadillac borrowed some pages from the AMG handbook: the turbocharger is nestled in between the cylinder heads, just like the current 4.0-liter AMG V8, and each engine is hand-built start to finish by one of six engine builders. The builderÂ’s name is even featured in the engine bay. TheyÂ’re special details that fit the idea of the old V cars, but the fact that a version of the same engine is in the Platinum CT6 does make its inclusion in the CT6-V seem less special, even if its output is notably less at 500 horsepower and 574 pound-feet of torque. Setting aside the details, the engine performs well in the real world. ItÂ’s astonishingly smooth, exactly what you want from a fast flagship. It also emits a unique exhaust note thatÂ’s both raspy and growly. You wonÂ’t mistake it for a pushrod powerplant. The power and torque provide a prominent push at all points in the rev band after a brief moment for the turbos to spool up. ItÂ’s just a shame there isnÂ’t much of a rev band, as the engine redlines at 6,000 rpm, which is easy to hit thanks to the engineÂ’s creamy character. ItÂ’s so low one wonders why Cadillac bothered developing a double-overhead-cam engine at all. The V8 is coupled to a 10-speed automatic transmission and all-wheel drive. The 10-speed is perfectly fine when cruising around town.

Brock Lesnar does M. Bison impression on Cadillac CTS

There's no doubt that a huge amount of physicality is required to survive night after night in the ring as a professional wrestler. Conversely, the storylines that tie all the action together are as staged as any soap opera. However, there's nothing fake about watching two axes being embedded in a Cadillac CTS by WWE wrestler Brock Lesnar. Lesnar's prodigious brawn was really putting this luxury sedan out of its misery, though. With matte black stripes on the hood, fake fender vents, camouflage along the side, and a decal proclaiming "Redneck" on the windshield, this particular Cadillac was far from the standard of the world. In favor of the CTS' build quality, Lesnar's hatchets didn't immediately do quite as much damage as you might expect, and he had to take several swings to achieve the destruction here. If you think that destroying a sedan one piece at a time sounds like something from a video game, you aren't alone. Someone else noticed a definite similarity to the bonus round from Street Fighter 2 where you get points for beating up a car at the dockside until it falls apart. Appropriate sound effects were even added, but having Lesnar throw a few pixelated fireballs would have been a nice inclusion, too. For the significantly longer, original version, check out the one embedded below. After Lesnar crushes the CTS, the actual wrestling does eventually ensue. The Caddy even briefly acts as a prop for some of the action.