Audi. Saturday , November 04th , 2017 - 12:17:24 PM
From 1,900 to 5,000 rpm, the 2.9 TFSI supplies the crankshaft with an impressive 600 Nm (442.5 lb-ft) of torque, which is 170 Nm (125.4 lb-ft) more than on the previous model. With its 331 kW (450 hp) - which equates to a power ratio of 155.5 hp per liter displacement - the unit accelerates the new RS5 Coupe from zero to 100 km/h (62.1 mph) in 3.9 seconds and thus six tenths of a second faster than before. If the customer orders the RS dynamic package, Audi increases the electronically restricted top speed from 250 km/h (155.3 mph) to 280 km/h (174.0 mph).
The new Audi RS5 Coupe demonstrates its sporty character as a gran turismo at first glance. The designers drew inspiration for the car from the distinctive motorsport details of the Audi 90 quattro IMSA GTO. The front, sides and rear exhibit RS-typical differentiation. Measuring 4,723 millimeters (185.9 in) in length, the second generation of the Audi RS5 Coupe is 74 millimeters (2.9 in) longer than the predecessor model. The height is 1,360 millimeters (53.5 in) and thus 6 millimeters (0.2 in) lower than previously. At 1,861 millimeters (73.3 in), the vehicle’s width is almost the same as before.
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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