2008 Audi Rs4
The 2008 Audi RS4, highly-developed by Audi AG’s functioning tuning segmentation quattro GmbH, jailbreak new reason in the mutant saloon section. These high-performance modeling boast legion innovations, delivering top operation on both route and rails. The Audi RS4 Cabriolet is new for 2008, and it promises to be extremely prized with a special yield run of about 300 vehicles for the modelling yr. Too new for 2008 are two pick packages for the saloon: the Ti software and the Audi Single midland bundle.
The Ti box consists of a melanize grillwork; nigrify english windowpane cut; titaniumcolored admixture wheels, fumes tips, and mirrors; pianissimo melanize inside passementerie; and flooring mats with contrastive red pipe and “RS4” logotype.
The new Audi Single internal parcel consists of red leather ass centers (melanize leather english bolsters and header rests) and threshold clipping; contrastive red bum and deck mat pipage; red sewing on the shimmy bang, emergency, seating, and wheel; forte-piano lightlessness inner shave; RS4 floormat logotype; and Audi Scoop badging. The Audi Single inner parcel is not useable on Dash or Mugello dingy Audi RS4 models.
At Audi, the “RS” assignment stands for peerless execution power, technical foundation, motorsports lineage, and electrifying drive kinetics. At the bosom of the Audi RS4 is the high-revving 420-hp naturally-aspirated V8 locomotive featuring FSI mastermind shot engineering, which was low proven out in the Le Mans-winning Audi R8 paradigm racer.
2008 Audi RS4
The Audi RS4 features the modish genesis of the quattro lasting all-wheel cause arrangement with asymmetrical/active torsion dispersion. Below convention impulsive portion, 40 pct of the ability is sent to the strawman wheels and 60 pct to the backside. This new asymmetric torsion schism quattro organisation is key to achieving the Audi RS4’s sporting impulsive kinetics and too ensures Audi’s fabled all-weather grip and confident treatment power.
The car has been engineered to tighten nimiety weighting, with the resultant organism a weight-topower proportion of 8.7 lbs. per hp. The Audi RS4 is a singular, sound, high-performance fomite with superscript drivetrain qualities, oblation drive kinetics peerless by any otc car in its section.
At the spunk of any sports car is the locomotive, and for the Audi RS4 quattro GmbH situated its cartel in a squeeze V8 whole featuring gas engineer shot engineering, referred to by Audi as FSI. With FSI, gasolene is injected immediately into the burning bedchamber, resulting in a consistent fire/air commixture. Because of the chilling essence of the forthwith injected fire, Audi’s developing engineers suffer been capable to increment the locomotive’s contraction proportion to 12.5:1, thereby boosting h.p..
The Audi RS4’s FSI engineering trickled refine from Audi’s motorsports efforts. Gas mastermind shot was highly-developed for and proved out in the Audi R8 image racer, a five-time succeeder of the fabled 24 Hours of Le Mans survival wash.
This more effective burning treat achieves tied higher index yield, which is demonstrated well-nigh intelligibly in the locomotive’s reactivity passim the rev-band. Thanks to this advanced injectant method, optimal mightiness and torsion outturn are produced in every drive office at both low and heights speeds.
At 7,800 rpm the 4.2-liter locomotive delivers 420 hp, and summit torsion is 317 ft. lbs. at 5,500 rpm. No less than 90 pct of utmost torsion is retained systematically end-to-end a blanket ambit of locomotive speeds from 2,250 to 7,600 rpm. Execution on the route is as telling: the Audi RS4 quicken to 60 mph in 4.6 seconds. At 155 mph the fomite’s amphetamine is swimmingly special by an electronic ascendance arrangement.
Audi has deployed the high-revving locomotive precept first in the Audi RS4, which has a maximal locomotive amphetamine of 8,250 rpm. The important advantages of this precept are higher-up exponent yield at gamy locomotive speeds and a smoothen, aegir reactivity crosswise the total rev grasp. Advance amplifying the high-performance see is the high-revving V8 locomotive audio that partizan drivers experience to try.
For foster use of the V8 audio scheme, urgent the “Variation” clit on the splashboard produces a more belligerent locomotive eject annotation. Furthermore, the electronic choke restraint heightens its reaction to bound inputs for a more gaudy drive receive.
The ultra-compact V8
The V8 mightiness whole is ultra-compact, try-on snugly into the locomotive compartment of the Audi RS4 without any personify modifications. The camshaft and ancillaries, with the elision of the alternator, are all determined by a strand for soft alimony.
Alone features of the V8 that powers the Audi RS4 versus the Audi S4 admit limited pistons and con-rods, a new crankshaft collectively its bearings, and new cylinder heads. A pair exhaust with exaggerated pipes provides flush higher ability turnout. These all-encompassing measures enable the 4,163 cc locomotive to erupt the witching 100 hp per l roadblock.
Acquiring all this might on to the route plainly was a pregnant gainsay, one that was resolved by incorporating the quattro lasting all-wheel thrust arrangement. O’er a tail c’s know and mart leading in the all-wheel driving car section stage literal benefits for Audi’s customers. The Audi RS4 features quattro all-wheel ride with asymmetrical/active torsion dispersion.
A plaza derivative distributes the powerfulness to the breast and behind wheels prn, thereby ensuring optimal grip. In varying route weather, superpower can be amused forthwith fully to the strawman or bottom, contingent the indigence. The dispersion organization, which below formula route weather transmits 40 percentage of the might to the strawman wheels and 60 percentage to the backside, makes the Audi RS4 an flush more imposingly active campaign. Aboard grip, controllability, constancy, shipment reversion and transitioning, aspects of lightness and guidance besides bear been well enhanced, underscoring the car’s extremely jazzy part.
The centre derivative is a self-locking writhe gearing, which agency that the lockup fulfil is prompted lone nether the regulate of the drivetrain. When braking and cornering, still, the gearbox permits differences in locomotive upper. The behind axle derivative is fitted with extra chilling fins.
The six-speed gearbox with real brusk shifter locomotion combines constrict dimensions with low weighting and a eminent measure of switch consolation. Altered to the mightiness isthmus of the Audi RS4, the gear provides splendid ability issue in recitation, conveyancing the outturn of the locomotive to the car’s compulsive wheels with maximal efficiency.
Eventide the topper drivetrain inevitably the right frame and hanging. A banner sports hiatus ensures that the locomotive’s turnout is transferred upright prn to the route. But Audi’s new sports saloon boasts a high-performance al reprieve with a four-link strawman axle and a trapezoidal-link ass axle that ensures a higher-up razz. Exact steerage, with sensible feedback, clean nimbleness and first-class directing constancy pee the Audi RS4 the hone car for the highway, land roadstead, and the slipstream racetrack.
Apiece bike on the battlefront axle is guided by four-spot aluminium cross links. The trapezoidal-link behind axle offers top-class drive kinetics. This torsion-proof and non-flexing trapezoidal contact absorbs a gravid part of the forces playacting on the pedal. Conjointly the raceway connection placed encourage to the bum, this particular contour defines the elastokinematic doings of the behind axle with ultimate preciseness.
Dynamic Ride Control
The Audi RS4 comes with Audi’s Dynamical Tantalise Restraint (DRC), an whole mechanical organization that reduces both consistency cast and rake on the car’s longitudinal and sidelong axes. This is established by interconnecting the dampers diagonally by way of a fundamental valve. Consistence movements during initial quickening are mostly eliminated therein way, as are pitch movements when braking or peal movements when cornering chop-chop. In the Audi RS4, quattro GmbH has succeeded in devising the organisation more contract and light than in the Audi RS6.
The combination of quattro drive, DRC, and a suspension specifically tuned to the Audi RS4 allows this outstanding high-performance Audi to hold the road safely even in the absolute limit at top cornering speeds. The Audi RS4 features the latest generation electronic stability program designed and configured especially for this car. Its interventions now are later and shorter, and it also is possible to delay intervention further, or to disable the program altogether.
For the RS4, Audi designers produced a range of light and attractive cast aluminum wheels with a seven double-spoke design. A special manufacturing method yields wheels that are stronger, thinner and lighter.
Compared with the standard Audi A4, the Audi RS4 is lower by 1.2 inches (30 mm). Another important change is the wider track, increased by 1.5 inches at the front and 1.9 inches at the rear. The spring and damper tuning also have been adapted to the sporty dynamics of the Audi RS4.
Servotronic steering has been specially tuned to the requirements of the sports sedan. With its direct response and short travel, it is well suited to the overall character of the Audi RS4.
Brakes for the race track
The Audi RS4’s impressive braking is based on a system that fits at least 18-inch wheels. The perforated and ventilated brake discs measure 14.4 inches in diameter at the front and 12.8 inches at the rear. They are designed in a floating arrangement, with the castiron friction ring of the brake system bolted onto the aluminum brake disc cover. The result is a significant improvement in brake resistance to fading, particularly under extreme loads. Another side effect of this technology is a reduction in unsprung mass.
Brake air flow is optimized by means of NACA ducts that keep the brake discs appropriately cool at all times. Featuring eight-piston fixed calipers originally developed for motorsports on the front wheels (four pistons and two brake pads on the inside and outside of each brake disc), as well as single-piston swing calipers on the rear wheels, the Audi RS4 offers supreme stopping power and directional stability.
Other features included in the electronic stability program are the electronic differential lock (EDL), traction control (ASR), electronic brake force distribution, and anti-lock brakes (ABS).
It also is possible to disable the stability program in two stages: in the first stage only the traction control (ASR) function is disabled; in the second stage the program is completely deactivated, including the traction control. As a result, there is no control intervention in any driving situation.
The design of the Audi RS4 combines functionality with aesthetics. The car’s appearance embodies the ultimate in uncompromising sportiness. In particular, the RS 4 demonstrates its enormous performance potential where such qualities really count, boasting features such as:
The sporty look of the Audi RS4 is combined with an equally high level of functionality. The large inlets on the front end of the Audi RS4 guarantee optimum cooling of the V8 FSI engine. Flared wheel arches offer substantial space for standard 19-inch wheels. With enlarged tailpipe cross-sections, the twin-chamber exhaust system provides significantly reduced exhaust gas back pressure. The 1.2-inch lowering not only provides a sporty look but also is a major factor in delivering outstanding levels of driving dynamics.
Despite uncompromising sportiness, the car’s close family relationship with the Audi A4 is unmistakable. The distinctive single-frame grille and the sweeping headlights, borrowed from the Nuvolari concept car, underscore the family heritage of the Audi RS4.
Premium quality typical of Audi and genuine sportiness typical of an RS model are combined in harmony in the interior of the Audi RS4. The Recaro sport bucket seats provide excellent lateral support. The RS bucket seats are covered in full silk nappa leather throughout.
Attention to detail is demonstrated in the choice of materials and the workmanship applied in processing them. Leather, aluminum and carbon fiber are the predominant materials in the interior. The RS steering wheel is covered in perforated leather. Carbon fiber trim inside the car serves to accentuate the sporting qualities of the Audi RS4, while milled aluminum door openers are echoed on the gear knob and the steering wheel. The gear knob, handbrake lever and steering wheel are covered in perforated leather.
The standard color LCD driver information system incorporated into the typical RSdesign cockpit features an oil temperature gauge as well as a stopwatch with lap timer function, a useful extra for those special track days so beloved by Audi RS4 drivers. The driver information system welcomes the driver with the exclusive RS welcome logo. The aluminum pedals are further evidence of the motorsports connection, and they also help to reduce weight.
An optional Premium package on the Audi RS4 consists of navigation system plus, Bluetooth, SIRIUS Satellite Radio, BOSE sound system, HomeLink garage/gate opener, auto dimming exterior mirrors, auto dimming interior rear-view mirror with integrated compass, rain and light sensor with “coming home” feature, and power rear and manual rear-side sunshades.
An iPod interface and aluminum interior inlays are no-cost options.
The Audi RS4 safety package is both comprehensive and highly sophisticated. Particular attention has been paid to the need for active driving safety. The quattro permanent allwheel drive system already offers more traction than conventional drive systems in critical driving situations. Its variable distribution of power across the two axles now also provides even greater benefit.
An additional boost to safety is provided by the electronic stability program, with its integrated dry braking function. When the road is wet, the system lightly applies the brake pads to the discs at regular intervals, unnoticed by the driver, to sweep water from them and so improve braking response.
The Audi RS4 features a tire pressure monitoring system as standard. The sensors located in the wheels continually measure the tire pressure at three-second intervals. In the event of an acute loss of pressure, the driver information system gives the driver both a visual warning sign and an acoustic alarm.
Passive safety of the highest standard
Great attention also was paid to the issue of passive safety. A rigid body, consistent and coordinated deformation properties, state-of-the-art restraint systems – including the two-stage front airbags – and the Sideguard head airbag system provide exemplary levels of occupant protection. This head-level side airbag system covers virtually the entire side window area, from the A-post to the C-post. The airbags themselves are inflated by a hybrid gas generator, which maintains the airbag pressure for several seconds to provide ongoing protection. This means Sideguard provides full protection even in a secondary collision such as when the car rolls over following initial impact.
If the car should roll over, a roll-over protection system in the double rear bulkhead adds to occupant safety. In this case, two protective bars, controlled by sensors, are triggered behind the rear passengers within milliseconds. Together with the extremely rigid windshield frame, they help to preserve survival space for all occupants.