Audi. Saturday , November 04th , 2017 - 11:58:50 AM
Sporty accents on the short rear end come in the form of the RS-specific diffuser insert, the oval tailpipes of the RS exhaust system and the vertical air outlets on the outer edges of the LED rear lights. A surface-mounted spoiler lip in black, or optionally in carbon, rounds out the image.
The standard headlights use LED technology, while the optional Matrix LED headlights are distinguished by their darker tinted bezels. Alongside them are additional lateral air inlets, which make this top-performing athlete appear even wider and more aggressive.
In the classic Miller cycle, the reduced cylinder charge is detrimental to torque and power output. These aspects have been neutralized by Audi thanks to the implementation of turbocharging and the two-stage Audi valvelift system (AVS). The four camshafts of the 2.9 TFSI can each be adjusted by 50 degrees crank angle. At higher load and engine speed ranges, AVS closes the inlet valve later. The opening time increases from 130 to 200 degrees crankshaft angle, while at the same time the valve lift increases from 6.0 to 10.0 millimeters (0.2 to 0.4 in). Cylinder charging also increases considerably - the 2.9 TFSI revs up powerfully and delivers an impressive output.
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