Cadillac will introduce a new 3.0-liter V-6 with the upcoming luxury CT6 sedan, the firm announced Friday. The turbocharged unit is part of a new generation of V-6 engines that will eventually make it into various General Motors vehicles. Peak output for the twin-turbo V-6 that will debut in the CT6 model is estimated at 400 horsepower and 400 pound-feet of torque, making it one of the most power-dense V-6 engines on the market, at 133 horsepower per liter.
The engine isn’t just about horsepower and torque though. To help it save fuel, GM built it with both cylinder deactivation and stop/start features, making it the first six-cylinder engine to combine turbocharging and these fuel-saving technologies. Cadillac estimated the 3.0-liter will be six percent more efficient than GM’s turbo 3.6-liter V-6.
As usual, Cadillac went ahead and compare its new engine to similar powerplants offered by its German rivals. Specifically, Caddy says the 3.0-liter’s 133 horsepower per liter is 27 percent greater than the BMW 740Li’s 3.0L twin-turbo V-6 (rated at 315 horses) and 29 percent more than the Audi A7’s 3.0L supercharged V-6 (rated at 310 horses). What’s more, the firm claims its new engine will deliver "exceptional quietness and smoothness" and be up to 5 dB quieter than the Audi 3.0-liter TFSI engine.
In the CT6, the new powerplant will mate to GM’s Hydra-Matic 8L90, eight-speed automatic transmission. However, this combo won’t be the CT6’s based drivetrain, as Cadillac also wants a turbo-four in the sedan.
Continue reading to learn more about Cadillac’s new 3.0 Liter V-6 Twin Turbo Engine.
Cadillac Announces New 3.0-liter V-6 Turbo Engine Will Debut In CT6 originally appeared on topspeed.com on Monday, 23 March 2015 11:00 EST.
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