Audi Moves to Superchargers for New V6

[Plex]

As Audi prepares to launch the new-generation S4 and the updated A6 next year, details have started to emerge with regards to its engine. The S4 won't go down the same path as its predecessor or the recently introduced S5 in using a V8 engine, but instead will downsize to a V6.


Audi's new V6 will feature a new supercharger. (Photo: Audi)

The new engine will serve as the successor to the 3.2-liter FSI with Valvetronic. And though the current engine is still a leader in refinement and is quite brisk, its 265 horsepower rating is down compared to its newer rivals, particularly the 3.0-liter BMW twin-turbo straight six and Mercedes-Benz's recently updated 3.5-liter V6, which now produces over 300 horsepower (not to mention those from Cadillac, Infiniti and Lexus).

The engine, dubbed 3.0 TFSI, is not quite what it's made out to be. Although it was predicted that the new engine would feature twin sequential turbochargers, Audi is actually moving away from turbo technology. Instead, the engine will be supercharged.


The next-generation A4 won't get the 4.2-liter V8, but rather a supercharged V6. (Photo: Audi)

Using a new Eaton supercharger, the V6 engine generates 286 horsepower at 4,850 rpm and 310 lb-ft of torque at 2,500 rpm. The supercharger is supplemented by an air-to-air intercooler. These figures will most likely apply to the engine that will be featured on the A6, rather than the S4.

The primary reason for Audi's switch to superchargers is based on low-end torque, particularly at very low revs; in addition, the supercharged setup is less complex and less costly to fit than a twin-turbo setup.

Audi's move to supercharged engines would also work in a number of other Audi products, particularly its larger vehicles like the Q7 and the A8. Expect this engine to debut alongside the updated A6 which is slated to arrive at this year's Paris auto show. And the A4, of course.

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