Audi Moves to Superchargers for New V-6
AUBURN HILLS, MI – As Audi prepares to launch the new-generation S4 and the updated A6 nextyear, details have started to emerge with regards to its engine. The S4 won’tgo down the same path as its predecessor or the recently introduced S5 in usinga V-8 engine, but instead will downsize to a V-6, according to www.automobile.com.
The newengine will serve as the successor to the 3.2L FSI with Valvetronic. And thoughthe current engine is still a leader in refinement and is quite brisk, its 265horsepower rating is down compared to its newer rivals, particularly the 3.0LBMW twin-turbo straight six and Mercedes-Benz’s recently updated 3.5L V-6,which now produces over 300 horsepower.
Theengine, dubbed 3.0 TFSI, will be supercharged. Using a new Eaton supercharger,the V-6 engine generates 286 horsepower at 4,850 rpm and 310 lb-ft of torque at2,500 rpm. The supercharger is supplemented by an air-to-air intercooler. Thesefigures will most likely apply to the engine that will be featured on the A6,rather than the S4.
Theprimary reason for Audi’s switch to superchargers is based on low-end torque,particularly at very low revs; in addition, the supercharged setup is lesscomplex and less costly to fit than a twin-turbo setup.