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Audi RS4 (B7) Avant 2008

29.500 visninger | Oprettet:
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Stemmefordeling (98)
morten n
morten n
Mand | 46 år | Oprettet: 20. jun 2005
Biler (2)


Følger (2) Følgere (1)

Audi RS4 (B7) Avant

Udfordringer
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Udfordr
Årgang:
2008
Motor:
4.2L V8 FSI (BNS) -

Miltek resonated valved oval black tips udstødning med 2,5" downpipes

Carbon pakke motorrum - Uden hastighedsbegrænser (334 Km/t v/8.250 RPM 6.gear)

Kompresion 12.5:1

2 x MOTRONIC 9.1 ECU (Master / slave) for at kunne følge med ved 8.250 RPM
Hestekræfter
420HK / 430NM

109,5 HK pr. liter / 3.67 kg pr. HK

90% af moment tilgængelig mellem 2.250 og 8.650 RPM
Fælge
19 x 9 RS4 Vinter (sølv)
19 x 9 RS4 sommer (Titan)
19 x 8.5 Team Dynamics Imola med 12mm spacers til bane
Dæk
235/35R19 Winter Extreme Vredestein (Vinter) - godkendt til 270 km/t

255/35R19 Pilot Sport Runflat (sommmer) - godkendt til 300 km/t

Undervogn
Ohlins TTX36

396x40mm MOVIT 6 - GEN3 Keramiske Bremser
Bilstereo
Racelogic Video VBOX pro med 32ch can data + live streaming via slingbox

"3" accesspoint med 21mbit download / 7.2 mbit upload - extern 12db antenne

Tracker med relæstyring af anlæg (kan tænde bilens anlæg / accesspoint med mobilen og uploade nye sange til apple TV via WIFI)


Alpine PXA-H800 DSP / Delefilter (får FR/FL/RR/RL fra RNS-E line - 32pin connector bag)
Alpine RUX-C800 (commandor til ovenstående)
JL Audio HD 4/600 + 1/750 monoblock (amps)
2 x 1,2 farad condensatorer
Pioneer PRS 6,5" komponentsystem (front + bag)
Pioneer PRS TS-W01RSII (2 stk) subs

AppleTV
Kufatech Mutimedia box (AV input via MMI)
DVD (styret via MMI)
TV tuner (Styret via MMI)
Racelogic Video VBOX (GPS logger + 32ch can data logger + 2 x kamara)

AppleTV + Video VBOX kører ind via AUX 1 + 2 på TV tuner - så der er faktisk 4 Video / Audio inputs på TV

Kilder:

CD changer (org)
MP3 x 2 (org)
DVD
DVB-T
AppleTV
Video VBOX

Styling
Org. - Optikpaket swartz (sort grill, ramme, roofrails, exhaust pipes) - Ingen skilte eller nummerplade rammer

Nu med mat hvid "Plasti Dip"
Interiør
Exclusive line - RS4 skålsæder med hvide sider - Sort himmerl,
Ekstra tilbehør
Audi exclusive Paket RS 4
Ceramic Brakes
Optikpaket swartz
Navigationssystem plus,
7-Doppelspeichen-Design in Titanoptik
Komfort-Paket
soltag, elektrisch
Bakspejl med kompas
Regnsensor og afblænd
Adaptive light
Airbags bag
El ruder bag
fartpilot
midterarmlæn
Sædevarme for + bag
Tonede ruder
Sportsundervogn
Bluetooth
Recirkulation
CD skifter
Styrker ved bilen
Svagheder ved bilen
Bemærkninger

RS4 B7 (Type 8E, 2006–2008)

Audi RS4 quattro (Type 8E), built on Audi's "B7" A4 platform, by quattro GmbH in Neckarsulm, Germany (a wholly owned private subsidiary of AUDI AG), was unveiled in February 2005 at Audi's 'quattro Night' celebration at the company headquarters in Ingolstadt, Germany.

An Imola Yellow RS4 saloon came down a replica of a ski jump, then rotated several times on an ice rink, before coming to rest in the centre of the ice. After several minutes to allow the assembled media and guests to examine the car, the RS4 climbed the ski jump and parked near the top. The ski jump was a homage to an Audi commercial from 1986; where an Audi climbed a ski jump in Finland to showcase its superior traction due to Audi's trademark quattro four-wheel drive drivetrain.

The RS4 became available to European customers in mid 2006. It was introduced at the 2006 North American International Auto Show in January, and arrived in June 2006 in North America. The production run of the B7 RS4 was 2006 to 2008 inclusive, although only 2007 and 2008 model year were sold in the United States. To date, approximately 10,000 B7 RS4s have been built, of which around 2,500 are in the USA.

Audi factory numbers indicate that the B7 RS4 can accelerate from 0 to 100 kilometres per hour (0 to 62.1 mph) in 4.8 seconds, and arrive at 0 to 200 kilometres per hour (0 to 124.3 mph) in 16.6 seconds. Most European magazines recorded results in line with the November 2009 comparison of "ultimate sedans," in Road & Track, which recorded a 0 to 60 time of 4.5 seconds. This is consistent with the pattern of conservatism that is usually found in Audi's official performance numbers. Top speed for all variants is 'officially' electronically limited to 250 kilometres per hour (155.3 mph), though some owners have reported that the speed limiter is rather 'liberal', conforming to the pattern of previous Audi "RS" cars, with genuine top speeds of 280 kilometres per hour (170 mph) being recorded.

Bodywork and styling

The B7 RS4 is an almost complete departure from previous Audi "RS" cars, as it was initially available as a four-door five-seat saloon/sedan; with a five-door five-seat Avant (estate/wagon), and two-door four-seat Cabriolet (convertible) versions arriving later. Only the Audi RS6 had taken this similar route (saloon and Avant) before; the previous RS4 and RS2 were available exclusively as Avants.
Constructed from fully galvanised steel in a monocoque (unitary/unibody) design, the B7 RS4 uses lightweight aluminium for its front wings (fenders) and bonnet (hood). The saloon version features a drag coefficient (Cd) of 0.31, from a frontal area of 2.17 m2.
Like its B5 predecessor, visually, the B7 RS4 differs from its related B7 S4, by having even wider flared front and rear wheel arches (fenders), to allow for a wider axle track. Over the B7 A4, it also includes two larger frontal side air intakes (for the two additional side-mounted coolant radiators). The trim on the saloon and roof rails on the estate are chrome as standard but can also be found in black with the addition of the Optic Pack which includes black front grill, all exterior trim and black roof rails on the estate version.

The B7 RS4 also includes an optional adaptive headlights to complement the standard "Xenon Plus" (Bi-Xenon arc) High Intensity Discharge (HID) headlamps, which swivel around corners in conjunction with steering wheel movements. Also standard are daytime running lights (DRLs), found within the main headlamp housings, identical to its related B7 A4 and S4, and use a conventional tungsten filament bulb. An acoustic parking system with front and rear sensors is also standard fitment. Unique carbon fibre interior trims, along with a lap timer within the central Driver Information System (DIS), aluminium pedal caps and footrest, and RS4 logos complete the look.

In the saloon, luggage space, measured according to the VDA 'block method', is 460 litres (16.2 cu ft) with the rear seats in the upright position, and 720 to 833 litres (25.4 to 29.4 cu ft) with the seats folded flat (dependent on specification). For the Avant, 442 litres (15.6 cu ft) is available with the seats upright (under the retractable load cover), and 1,354 litres (47.8 cu ft) being available with the rear seats folded flat (loaded to the roofline). Kerb weight of the saloon variant starts at 1,650 kilograms (3,638 lb)(dependent on specification).

A BOSE ten-speaker sound system, with 190 watt output and automatic dynamic noise compensation. Navigation option is the RNS-E "Audi Navigation System plus" DVD-ROM GPS satellite navigation, which includes a folding widescreen 6.5-inch screen, two SD-memory card readers, and MMI-like logic control.

B7 interior safety

To achieve maximum body stiffness with controlled deformation crumple zones, the B7 RS4 features laser beam welding of major seams of the high-strength steel body shell, which helps improve overall structural rigidity, particularly in the 'passenger cell', over traditional spot welding methods.

Powertrain

At the heart of the B7 RS4 powertrain is its unique internal combustion engine. Started by an "Engine Start" button on centre console, motive power comes from a 4.2 litre – 4,163 cubic centimetres (254.0 cu in), V8 engine. This is a 32-valve (four valves per cylinder) Fuel Stratified Injection (FSI) all aluminium alloy petrol engine (parts code and version: 079.D, identification code: BNS).

It is fundamentally based on the existing all-alloy 4.2 V8 from the B6 S4, and sharing many identical parts with the Audi Q7 4.2 FSI V8 engine. The RS4 engine has increased crankcase breathing, low-pressure fuel return system, and a baffled oil sump (to prevent engine lubricant cavitation at high engine speeds and high-G cornering).

This new engine includes new cylinder block construction, and is a highly reworked, high-revving variant (redline at 8,000 rpm, rev limit of 8,250 rpm), having cylinder-direct injection (Fuel Stratified Injection), and four valves per cylinder (instead of five on the earlier variant). It has two roller chain-driven double overhead camshafts per cylinder bank (2xDOHC, or 'quad cam'), and utilises variable valve timing for both inlet and exhaust camshafts, along with a cast magnesium alloy fixed tract length intake manifold with adjustable tumble flaps (to improve low engine speed combustion).

It produces a maximum output of 309 kilowatts (420 PS; 414 bhp) at 7,800 revolutions per minute (rpm) whilst consuming 98 RON (93 AKI) Super-Unleaded petrol, giving it a specific power output of 74.2 kW (100.9 PS; 99.5 bhp) per litre. Based on a kerb weight of 1,680 kilograms (3,704 lb), this results in a power-to-weight ratio of just 3.93 kilos per bhp. This engine also produces 430 newton metres (317 ft•lbf) of torque at 5,500 rpm, 90 percent of the total torque being available between 2,250 and 7,600 rpm.

The engine's waste gases escape through two '4-into-2-into-1' fan-branch alloy steel exhaust manifolds and four high-flow metallic sports catalytic converters, and exit via twin oval tail pipes with integral dynamic silencer/muffler valves.
Engine management is controlled via two Bosch DI-Motronic MED 9.1 electronic engine control units (working on the 'master/slave' concept, due to the high-revving nature of the engine), and utilises Bosch 'E-Gas' electronic throttle control (also known as drive by wire), comprising throttle device, accelerator-pedal module, and ECU. The ignition system uses eight individual single-spark coils, utilising mapped direct ignition, with Bosch single iridium electrode or NGK triple-electrode long-life spark plugs. Ignition timing is monitored with the aid of four knock sensors.

A six-speed Getrag manual gearbox (parts code: 0A3, identification codes: HLD, JHM) is the only transmission available (gear ratios - 1st: 3.667, 2nd: 2.211, 3rd: 1.520, 4th: 1.133, 5th: 0.919, 6th: 0.778).

The Audi B7 RS4 remained the only "RS" Audi powered by a naturally aspirated engine, until the Audi RS5 was presented at 2010 Geneva Motor Show. The RS5 shares the same engine but it is tuned for an additional 30 hp and it dropped the Getrag 6-speed manual in favor of a 7-speed "S tronic" dual clutch semi-automatic.

Another focus of the B7 RS4 was on the introduction of the latest development of Audi's 'trademark' quattro permanent four-wheel drive system.
This utilised the 'third generation' asymmetric/dynamic Torsen T-3 'automatic torque biasing' (ATB) centre differential, featuring a 'default' 40:60 front-to-rear torque split under normal conditions. Audi stressed that this would result in a more neutral response in corners, and a more dynamic driving experience. Also, a more aggressive Torque Bias Ratio (TBR) was used, and set to 4:1, as opposed to 2:1 (and later variants 3:1 TBR) on standard A4. That means that one side of the differential can handle up to 80%, while the other side would have to only handle 20% of applied torque.
Front and rear axle differentials are conventional "open" types, with a final drive ratio of 4.111.

Traction is assisted by way of Audi's "Electronic Differential Lock" (EDL), which is a specific function of the Robert Bosch GmbH ESP 8.0 Electronic Stability Programme system. EDL monitors the rotational speeds of the left and right wheels across an individual axle, and if one wheel should rotate faster than the other (exceeding the pre-defined parameters), indicating loss of traction, or "wheel spin" on one wheel, the EDL applies the brakes to that individual spinning wheel, and thus results in transferring torque across the open differential to the wheel on the other side deemed to have grip, hence traction. Also included in the ESP 8.0 is "Anti Slip Regulation" (ASR) - Audi's name for Traction Control System.

Suspension and steering

The B7 RS4 also incorporates Audi's "Dynamic Ride Control" (DRC) "Sports Suspension" mechanism. The dampers (shock absorbers) are made for Audi by KW, and central reservoirs/valves made by KYB (Kayaba). In the RS4 suspension, a fluid hydraulic linkage between diagonally opposing front and rear suspension dampers (left front to right rear, and vice-versa) is used to counteract vehicle pitch and roll. Lightweight magnesium/aluminium alloy multi-link suspension arms (four arm with virtual steering axis up front, and trapezoidal arm with unequal length track control arms at the rear) locate each hub/brake/roadwheel assembly in a controllable fashion, whilst minimising unsprung masses. Lightweight hollow tubular anti-roll bars are standard front and rear.

Compared to standard B7 A4 models, the RS4 features a 30 millimetres (1.2 in) lower ride height. An optional "Sports Suspension Plus" lowers the car by a further 10 millimetres (0.4 in), and marginally further stiffens the damper rates.
Axle track has also been increased over standard A4s; the front widened by 37 millimetres (1.5 in), to 1,559 millimetres (61.4 in) and the rear by 47 millimetres (1.9 in) to 1,569 millimetres (61.8 in).

Speed sensitive "servotronic" variable-assistance electro-hydraulic power assisted steering (PAS) is controlled from a compact flat-bottomed steering wheel, finished in perforated leather with mock-aluminium trim. The steering rack ratio is 13.1:1, and the turning circle is 11.1 metres (36.42 ft).
brakes, wheels and tyres

Standard brakes on the RS4 consist of two-piece, cross-drilled, radially ventilated and floating cast iron brake discs, secured to aluminium alloy disc hubs. The two-piece disc construction, with its lightweight alloy disc hub helps reduce unsprung masses, and also helps to reduce the transmission of heat generated by the brakes to the wheel bearings.
The front discs are sized at 365 millimetres (14.4 in) in diameter by 34 millimetres (1.34 in) thick, and use gloss black Brembo monoblock eight-opposed piston fixed calipers. These, along with the transmission, are supplied with a cooling airflow directed from NACA ducts located in the engine front undertray.

A lighter, and higher performing "Audi ceramic" front brake system - consisting of cross-drilled, radially vented and floating Carbon fibre-reinforced Silicon Carbide (C/SiC) composite SGL Carbon discs, sized at 380 millimetres (15.0 in) by 38 millimetres (1.50 in), with grey Brembo monoblock six-opposed piston fixed aluminium alloy calipers were an option from 2007 model year onwards (and only with 19 inch roadwheels).

These have a much greater tolerance to thermal differences, virtually eliminating brake fade, and have a duration of five times greater than conventional iron discs. A further attribute of the Ceramic brakes is that they reduce unsprung mass by around 50%, and therefore improve steering response and overall handling as a result.
Rear brakes are drilled, vented and floating 324 millimetres (12.8 in) by 22 millimetres (0.87 in) iron discs, with gloss black Lucas-Girling TRW single piston floating calipers utilising an integrated mechanical handbrake mechanism.
A specifically 'tuned' "sport-biased" Bosch ESP 8.0 Electronic Stability Programme is standard, and includes Anti-lock Braking System (ABS) and Electronic Brakeforce Distribution (EBD), and Brake Assist (BA). This ESP system has three user-selectable settings – the standard default full protection mode, increased slip mode (which turns off the ASR and EDL), and ESP fully off. Another useful function of the ESP 8.0 is the inclusion of 'disc wiping', whereby the ESP system frequently but momentarilly applies the brakes during wet weather. This effectively removes water from the disc and pad surfaces, and helps maintain braking performance of dry weather. This operation is undetectable by the driver.

Standard roadwheels are 19 inch alloy wheels (9Jx19" ET29 "7-arm double spoke") with 255/35 ZR19 96Y XL (eXtraLoad) high performance tyres.
Factory supplied tyres included Continental SportContact 3, Michelin Pilot Sport PS2, or Pirelli P-Zero Rosso. A 19" winter wheel and tyre package was also available as an option, and included 255/35 R19 96V Dunlop SP WinterSport 3D tyres.
A direct-acting Tyre Pressure Monitoring System (TPMS) is standard fitment. This system monitors the actual pressure in all four tyres every three seconds, and should any loss in pressure be detected, both an audible and visual warnings are given to alert the driver via the Driver Information System (DIS) in a timely manner.

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