Ford may have been the first to bring a mass-market twin-turbocharged V-6 to market as a V-8 replacement, but it's not the last. All the while it was touting the small block V-8 as an ageless marvel of packaging and power, General Motors was working on its answer to Ford's now-ubiquitous replacement for displacement. Today, we finally get an up-close look at what the General had up its sleeve.
Although it doesn't have a catchy moniker like EcoBoost or even Northstar, simply Cadillac Twin-Turbo, the new engine trounces the 3.5 EcoBoost in power in its current configurations. With a healthy SAE-certified 420 hp and 430 lb-ft of torque, the 3.6-liter twin-turbo offers up 55 more hp than the EcoBoost, 80 more lb-ft more torque than the transverse EcoBoost, and 10 lb-ft more twist than the current longitudinal application in the F-150.
However, unlike the EcoBoost, Cadillac is recommending a diet of strictly premium fuel for its engine. While that prescription is acceptable for a performance sedan, it may prove a harder sell in more mainstream applications.
Mated to the engine is an as-yet unnamed eight-speed automatic. Were we to venture a guess based upon our GM powertrain knowledge, we'd say 8L80 might be a good one. In addition to the rear-drive CTS, the engine has also been announced as an option on the 2014 Cadillac XTS, presumably with mandatory all-wheel drive.
Lincoln has already hinted that the next-generation Navigator will likely get the EcoBoost V-6 as an engine option, or even its standard engine. The popularity of the EcoBoost in the F-150 has already proven buyers' acceptance of a turbocharged V-6 in a utilitarian application, so its offering in a full-size SUV doesn't seem like much of a stretch. While we still expect the 2014 Escalade to launch with the 6.2-liter direct-injected V-8 similar to that in the Corvette Stingray, the twin-turbo 3.6 could be coming as an option shortly thereafter.
Source: General Motors