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The 2022 Cadillac CT5-V Blackwing is the most powerful production car ever produced by the luxury brand of General Motors. Jason Fenske, host of “Engineering Explained,” has all the details on the monster engine of the new performance sedan.
Blackwing is both the name of an engine and the highest level of Cadillac performance models. But the CT5-V Blackwing does not use the Blackwing engine, which was a twin-turbocharged 4.2-liter V-8 that debuted in the discontinued CT6-V sedan. Instead, Cadillac chose the supercharged 6.2-liter V-8 from the CT5-V Blackwing’s predecessor, the CTS-V. However, the engine is now tuned for 668 horsepower and 659 pound-feet of torque, compared to the previous 640 horsepower and 630 pound-feet.
The 6.2-liter supercharged V-8, meanwhile, is based on the LT4 engine that debuted in the C7-generation Chevrolet Corvette Z06 for the 2015 model year. It’s also a pushrod engine, while the twin-turbo 4.2-liter V8 had two overhead cams. Its turbos were also located between the cylinder banks in a “Hot-V” arrangement for better responsiveness.
Cadillac CT5-V Blackwing 2022
In the CT6-V, the 4.2-liter engine produced 550 horsepower and 640 lb-ft of torque, which is actually more horsepower per liter than the larger supercharged engine. In the all-wheel-drive CT6 sedan, the Blackwing engine even achieved better fuel economy than the LT4 engine in the C7 Z06, Fenske noted. So why did GM go for the Chevy-derived engine over the Cadillac-specific one?
First, the supercharged engine can run higher than the twin-turbo engine – 6,600 rpm versus 6,000 rpm. The 6.2-liter engine is also quite compact for its displacement, Fenske said (remember, it was designed to fit under the low hood of a Corvette). It’s also more responsive, he noted. Even if you don’t agree with the engine choice, it’s also worth noting that the CT5-V receives a standard 6-speed manual transmission, which was not available in the CT6-V sedans or CTS-V.
The CT5-V Blackwing may also be one of the last of its breed. Just before unveiling the supercharged sedan, GM announced that it “aspires” to eliminate the tailpipes of all its passenger cars and light trucks by 2035. While the aspiration differs from the commitment, it is is a sign that the days of internal combustion are numbered among Americans. the largest automaker. Even before the announcement, Cadillac was already expected to go primarily electric over the next decade, starting with the Lyriq SUV and the Celestiq sedan.
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