8/23/2017 Sport Quattro S1 (1985) - Racing Cars

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Development chain Homologation 1981:

Touring cars 1983: Audi Quattro A1

GT cars 1983: Audi Quattro A2

Sports Prototypes 1984: Audi Sport Quatt ro

Formula cars 1985: Audi Sport Quattro S1 1987: Audi Sport Quattro S2 Parts Aerody namics Source Fuel Feed Engine Gearbo x Fold Table of Contents I.C.E.A.L. Specifications Results in WRC Statistics Search site Races Recent chan ges Article from AUTOSPORT 7/1985 Site Manager Drawings

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On board in Verzegnis hillclimb 2012: see video On board: see video (2006) and video Walter Röhrl: see video Rallying: see video and video2

Specifications

Group/Class B/12 Homologation number: B 264 (12/01 ES) Years active 1985 - 1986 Homologation start: 1/7/1985 Engine KW, straight 5cyl, Type 4 stroke, petrol located front longitudinal with 27.5o right inclination engine Capacity 2110 cc WRC: x 1.4 = 2954 cc Bore x Stroke 79.51 x 85.0 (mm) Compression 7.5:1 ratio 550 HP / 7500 Output power rpm 56.0 kgm (550 Nm) / 5500 rpm - torgue 600 HP / 8000 60.1 kgm (590 Nm) / 5500 rpm rpm 6 of 58mm connecting rod distance between centers 144mm, big end bearing diameter Main bearings diameter 50.6mm block: aluminium Materials cylinderhead: aluminium alloy alloy 2 overhead camshafts 4 valves/cyl. - 20 valves total. 32.2mm inlet valves diameter, 28.2mm Cams/valves (DOHC), belt exhaust valves diameter driven KKK K27 turbocharger (CrNiSi turbine 76.2mm diameter, aluminium compressor 87mm diameter), air/air intercooler Aspiration pressure: with water injection and antilag system, Bosch LH- jetronic multipoint electronic fuel injection Ignition electronic, firing order 1-2-4-5-3 Cooling watercooled system Lubrication dry sump with 1 system oil cooler Transmission 5 or 6 speed PDK (Porsche-Doppelkupplung) power shifted or manual Type four wheel drive gearbox Gearbox 1st: 3.111/1 1st: 3.000/1 (36/12) 1st: 3.500/1 (28/8) ratios (28/9) 2nd: 2.000/1 (32/16) 2nd: 2.273/1 (25/11 ) 2nd: 2 .273/1 3rd: 1.526/1 (29/19) 3rd: 1.706/1 (29/17) (25/11) 4th: 1.167/1 (28/24) 4th: 1.318/1 (29/22) 3rd: 1.7 06/1 5th: 0.963/1 (26/27) 5th: 1.04/1 (26/25) (29/17) R: 2.875/1 (46/16) 6th: 0.889/1 (24/27 ) 4th: 1.3 18/1 R: 3.455/1 (38/11) (29/22) 5th: 0.9 62/1 http://tech-racingcars.wikidot.com/audi-sport-quattro-s1 1/5 8/23/2017 Audi Sport Quattro S1 (1985) - Racing Cars (25/26) R: 3.500/ 1 (42/12) front and rear: 3.875/1 (31/8), output from secondary gearbox shafto to open or locked or limited slip center 4.571/1 (32/7), differential with two outputs, 1st to hypoid spiral bevel gear, limited slip front 4.857/1 (34/7), Diffrential differential homocentrically through secondary hollow shaft of gearbox, 2nd to 5.286/1 (37/7), ratio hypoid spiral bevel gear, limited slip rear differential. From FIN '85: torsen 5.571/1 (39/7), center differential with Ferguson coupling and adjustable torgue 5.857/1 (41/7). distribution 20%-80% to 80%-20% front to rear automatically 4.375/1 (35/8 ), 4.625/1 (37/8) Clutch dry, double disk Chassis-body steel monocoque Typ 85 chassis version of VW B2 platform shortened by 320mm with roll-cage. Type Front steel subframe. 2 door coupe steel/kevlar bodyshell with front/rear plastic bonnets and bumpers. Aerodynamic spoilers to the front and rear of the car to increase downforce Front mc pherson strut with lower wishbone, coil spring, telescopic gas shock absorber and antiroll bar suspension 19-22-25-28mm diameter Rear mc pherson strut with lower wishbone, 1 longitudinal radius arm, coil spring, telescopic gas shock suspension absorber and antiroll bar 19-22-25-28mm diameter rack and pinion Steering with hydraulic 22.4/1 system power assistance front ventilated disks 280/295/304/330mm diameter with 4 aluminium piston calipers. Rear ventilated disks Brakes dual circuit with servo 280/295/304mm diameter with 4 aluminium piston calipers (Lockheed or Girling) Dimensions length: 4.240 m (166.9") width: 1.860 m (73.2") height: 1.344 m (52.9") wheelbase: 2.224 m (87.6") front track: 1.465 m (57.7") rear track: 1.502 m (59.1") front and rear 7" Rims - tires Michelin - 9.75" x 16" Weight 1090 kg front-rear: 52% - 48% Weight/power 2.0 kg/HP Fuel tank 90 - 120 lt

Results in WRC

Statistics

1985 1986 Total Total works WRC results Races /wins 4/1 2 6/1 Entries/finishes 6/2 3/2 9/4 (44.4%) 34 Total points 19 15 (5.667 pe r race) (3.778 per entry)

Races

Works team: Audi Sport Click on tabs

1985 1986

Season

Entry Rally event SVE Driver Team M.C Entr y POR KEN TdC GRE N.Z ARG FIN S.R (CdI) RAC Codrive r list

Walter Röhrl acci Christian works 1st dent Geistdörfer oil eng works Arne Hertz loss ine eng works 2nd Ilkka Kivimäki ine

Total points 19 9 10 () Statistics Works 6/2 1/0 2/1 1/1 2/0 starts/finishes

Article from AUTOSPORT 7/1985

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Source

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Source Drawings

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