AUDI S3 Sedan (2015)
1.8 هزار بار بازدید -
11 سال پیش
-
Impressive power and groundbreaking efficiency:
Impressive power and groundbreaking efficiency: The Audi S3 Sedan sets new standards. Its 2.0 TFSI is a high-output engine, producing 221 kW (300 hp) and 380 Nm (280.27 lb-ft) of torque, yet consumes on average with S tronic just 6.9 liters of fuel per 100 kilometers (34.09 US mpg). The uncompromising chassis and systematic lightweight construction underscore the dynamic character of the four-door model.
The heart of the Audi S3 Sedan is the engine, the 2.0 TFSI with turbocharging and direct injection. Its predecessor was named "International Engine of the Year" in its class five times in a row, and the new 2.0 TFSI boasts even more impressive figures. Its peak output of 221 kW (300 hp) is available between 5,500 and 6,200 rpm. It delivers a 380 Nm (280.27 lb-ft) of torque to the crankshaft between 1,800 and 5,500 rpm.
Paired with the S tronic, the two-liter engine accelerates the S3 Sedan from 0 to 100 km/h (62.14 mph) in 4.9 seconds on its way to an electronically governed top speed of 250 km/h (155.34 mph). In the NEDC, the four-door sedan with S tronic consumes just 6.9 liters of fuel per 100 kilometers (34.09 US mpg) on average - a CO2 equivalent of 159 grams per kilometer (255.89 g/mile).
The 2.0 TFSI is a fascinating sport engine and its resonant sound makes for an intensive experience. When the standard Audi drive select dynamics system is in dynamic mode, it responds even more directly to accelerator commands, with brief double-clutching underscoring the change of gears by the optional S tronic. The sound flaps in the exhaust system open at higher load and rpm. Two balance shafts ensure tremendous smoothness.
2015 Audi S3 Sedan
With a bore-to-stroke ratio of 82.5 x 92.8 millimeters (3.25 x 3.65 in), it has a displacement of 1,984 cc. High-load aluminum pistons and higher-strength connecting rods with new bearings transmit the forces to the crankshaft. The new aluminum-silicon alloy used for the cylinder head (a new development compared to the 1.8 TFSI) combines high temperature resistance and strength with low weight.
The upgraded turbocharger further increases output; it develops up to 1.2 bar of charge pressure and can withstand exhaust temperatures of up to 1,000 degrees Celsius. A modified charge air intercooler lowers the temperature of the compressed air sharply, thus increasing the mass of air available for combustion. The electronically controlled wastegate valve operates very quickly and precisely. At part load, it reduces the back pressure and thus the exhaust pressure resulting in reduced charge-cycles.
The four cylinders are always well filled with the optimum mixture of fuel and air. "Swumble" flaps (swirl and tumble) induce a targeted charge motion in the inflowing air - this is the basis for an optimum mixture preparation. The intake camshaft can be adjusted variably by up to 60 degrees of crankshaft rotation, the exhaust camshaft by 30 degrees. On the exhaust side, the Audi valvelift system (AVS) varies valve lift in two stages.
Additional technical features from Audi's modular efficiency platform contribute to the low fuel consumption of the 2.0 TFSI. One example is the additional indirect injection as a supplement to FSI direct injection. Under part load, this minimises fuel consumption and particulate emissions. FSI fuel injection comes into play when starting and at higher load.
The innovative thermal management system uses two rotary valves combined in a single module to regulate coolant flow and temperature. These valves ensure that the engine oil heats up to its optimum operating temperature as soon as possible. The exhaust manifold is integrated into the cylinder head, a further solution that accelerates engine warm-up following a cold start and lowers the exhaust temperature. Other efficiency measures include reduced friction by means of an innovative coating for the piston skirts and roller bearings for the balance shafts, as well as a demand-controlled oil pump and the start-stop system.
The heart of the Audi S3 Sedan is the engine, the 2.0 TFSI with turbocharging and direct injection. Its predecessor was named "International Engine of the Year" in its class five times in a row, and the new 2.0 TFSI boasts even more impressive figures. Its peak output of 221 kW (300 hp) is available between 5,500 and 6,200 rpm. It delivers a 380 Nm (280.27 lb-ft) of torque to the crankshaft between 1,800 and 5,500 rpm.
Paired with the S tronic, the two-liter engine accelerates the S3 Sedan from 0 to 100 km/h (62.14 mph) in 4.9 seconds on its way to an electronically governed top speed of 250 km/h (155.34 mph). In the NEDC, the four-door sedan with S tronic consumes just 6.9 liters of fuel per 100 kilometers (34.09 US mpg) on average - a CO2 equivalent of 159 grams per kilometer (255.89 g/mile).
The 2.0 TFSI is a fascinating sport engine and its resonant sound makes for an intensive experience. When the standard Audi drive select dynamics system is in dynamic mode, it responds even more directly to accelerator commands, with brief double-clutching underscoring the change of gears by the optional S tronic. The sound flaps in the exhaust system open at higher load and rpm. Two balance shafts ensure tremendous smoothness.
2015 Audi S3 Sedan
With a bore-to-stroke ratio of 82.5 x 92.8 millimeters (3.25 x 3.65 in), it has a displacement of 1,984 cc. High-load aluminum pistons and higher-strength connecting rods with new bearings transmit the forces to the crankshaft. The new aluminum-silicon alloy used for the cylinder head (a new development compared to the 1.8 TFSI) combines high temperature resistance and strength with low weight.
The upgraded turbocharger further increases output; it develops up to 1.2 bar of charge pressure and can withstand exhaust temperatures of up to 1,000 degrees Celsius. A modified charge air intercooler lowers the temperature of the compressed air sharply, thus increasing the mass of air available for combustion. The electronically controlled wastegate valve operates very quickly and precisely. At part load, it reduces the back pressure and thus the exhaust pressure resulting in reduced charge-cycles.
The four cylinders are always well filled with the optimum mixture of fuel and air. "Swumble" flaps (swirl and tumble) induce a targeted charge motion in the inflowing air - this is the basis for an optimum mixture preparation. The intake camshaft can be adjusted variably by up to 60 degrees of crankshaft rotation, the exhaust camshaft by 30 degrees. On the exhaust side, the Audi valvelift system (AVS) varies valve lift in two stages.
Additional technical features from Audi's modular efficiency platform contribute to the low fuel consumption of the 2.0 TFSI. One example is the additional indirect injection as a supplement to FSI direct injection. Under part load, this minimises fuel consumption and particulate emissions. FSI fuel injection comes into play when starting and at higher load.
The innovative thermal management system uses two rotary valves combined in a single module to regulate coolant flow and temperature. These valves ensure that the engine oil heats up to its optimum operating temperature as soon as possible. The exhaust manifold is integrated into the cylinder head, a further solution that accelerates engine warm-up following a cold start and lowers the exhaust temperature. Other efficiency measures include reduced friction by means of an innovative coating for the piston skirts and roller bearings for the balance shafts, as well as a demand-controlled oil pump and the start-stop system.
11 سال پیش
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