The Audi S4 is a sport version of the German automaker's entry level sedan powered by a 2.7 Liter Biturbo V6 that sent 251 HP and 258 lb-ft of torque through a Quattro all wheel drive system in 1997. In 2003 the S4 was redesigned with a few new bloated body lines and Audi placed a 4.2 Liter V8 making 339 HP and 302 lb-ft of torque under the hood that would accelerate the four door from 0 to 60 MPH in under 5 seconds. In 2005 the S4 became a bit more curvaceous but retained the same power plant. The latest generation S4 went on sale in 2008 and is powered by a smaller supercharged V6 that produces a more efficient 333 HP and can get to 60 MPH in 4.9 seconds.
German tuners TurboArt have successfuly generated in excess of 700 hp from the Audi S4 . The cars mass has been lowered to 1,513 kilograms (about 3330 lbs.) That’s about a 540 lbs. weight savings.
In order to get the power to the ground the TurboArt Audi S4 uses a Bilstein suspension, BBS CH rims and Dunlop SportMaxx GT rubber. Safety in the TurboArt Audi S4 is highlighted by a roll cage and Recaro race buckets. During the evaluation at the Papenburg race track the TurboArt Audi S4 recorded a 0 to 300 km/h (186 mph) sprint in 26.94 seconds.
Unfortunately the engine modifications necesary to produce such power is a guarded secret of the gentlemen at TurboArt.
When the S4 arrives in Germany’s showrooms this fall it will be powered by a 3.0 TFSI that delivers 333 hp and a peak torque of 325 lb-ft. It makes the 0 to 60 mph sprint in 5.1 seconds while top speed is limited to German gentlemen’s agreement of 155 mph.
After unveiling the European specification on the 2009 S4 , Audi also revealed USA data on the car. The S4 sedan will go on sale in Fall of 2009 as a 2010 model, with pricing to be announced at a later date, but according to the company will be similar to the outgoing model. S4 Avant body style will not be offered in the USA. S4 will compete with BMW M3 sedan and Mercedes-Benz AMG C63.
Audi will unveil at the Paris Auto Show the 2009 S4, both sedan and station wagon version. The two models will go on sale in March 2009.
Both models are powered by a completely redesigned engine: the 3.0 TFSI, the newest member of the Audi V-engine family. The V6 generates its power from a displacement of 2,995 cc, is equipped with a supercharger, and delivers 333 hp. The sedan sprints to100 km/h (62.14 mph) in just 5.1 seconds, and the Avant in 5.2 seconds: they both have an electronically governed top speed of 250 km/h (155.34 mph).
The 3.0 TFSI delivers its maximum 440 Nm (324.53 lb-ft) at 2,500 rpm and maintains this constantly until 4,850 rpm. In fourth gear, the vehicle accelerates from 80 to 120 km/h (49.71 to 74.56 mph) in just 4.4 seconds. Thanks to the extremely short gas paths, the sonorous, supercharged V6 responds spontaneously to the throttle, even more so than a naturally aspirated engine of the same displacement.
Furthermore, the new 3.0 TFSI achieves exemplary fuel efficiency. On average, the sedan uses 9.7 liters of fuel per 100 km (24.25 US mpg), and the Avant 9.9 liters per 100 km (23.76 US mpg) – an improvement of 3.4 liters (26 percent) compared with its predecessor.
The Audi S4 is ready for the market launch, and this latest spy shots prove that we are right. The S4, sedan version, will make its world debut this autumn at the Paris Auto Show. The station wagon version will be launched at a later date, and the first prototypes are also on testings.
The V8 engine was dropped and replaced by a 3.0 liter V6 TFSI-engine, both turbo and direct injection, that delivers around 330 hp (there are rumors also saying there will be a 350 hp version.) The engine will be mated to a 7-speed S-tronic gearbox.
The new 3.0 TFSI engine makes its debut in the S4, and starting 2010 will be used in S5, and a detuned version that will produce around 300 hp will be used for the A6 and A7.
Audi will unveil the hot S4 sedan this autumn at the Paris Motor Show. It will be powered by a new supercharged V6 petrol engine producing around 350bhp.
The future S4 will feature the new S-tronic gearbox that weights 142kg - around 40 kilos more than the six-speed manual. However, performance is actually faster with the twin-clutch ’box and emissions are lower, too.
The 2009 S4 will make the 0 to 60 mph sprint in less than six seconds and will hit a top speed of 155 mph (electronically limited).
Sales will begin in early 2009. The S4 will be offered as sedan, station wagon and convertible. A RS4 version will also debut in 2009.
First rumors said the 2010 Audi S4 would share its powertrain with the S5. But this rumors are incorrect as the 2010 S4 will be powered by an all-new forced-induction 3.0-liter V-6 that will generate something close to the 340 hp.
The reason is quite simple: fuel economy. Audi’s strategy is to deliver comparable or improved overall performance by toeing the line on weight and maintaining power output by using forced induction on a smaller displacement engine. Doing so will boost a manual transmission S4’s fuel economy on the European cycle to 23.3 mpg compared with only 19.4 mpg for the V-8 S5. That’s an efficiency gain of 20%.
A less powerful, 290-hp, 310 lb-ft version of the engine will be the base offering in the A6 Quattro, replacing the 3.2-liter V-6. Known as TFSI, which in the past has been Audi’s internal moniker for four-cylinder turbos, the new engine may be referred to as the 3.0T in the model name, possibly indicating a twin-charged system using both a supercharger and a turbocharger. While Volkswagen has a “twincharger,” Audi has not yet offered such a system. At the very least, we expect the new V-6 to be supercharged, although what will allow the S4’s version to generate 50 or so more horsepower is still a mystery.
Audi will debut the 2010 S4 this autumn, probably at the Los Angeles Auto Show.
Some guys from Audiworld publish some pictures taken in Germany of what it looks is the Avant version of the Audi S4. The exterior is not the S4, but the brakes and the back kind of say it is.
According to some inside information from someone on Audi, the new S4 model will be powered by a 3.0 liter TSFI engine twin turbo, generation 330 hp. The time needed to make from 0-60 mph will be better that the 5.4 seconds from the actual model, dropping to a clean 5 seconds.