Audi 90 B3 Quattro group A (1988)
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Home » Rally Cars » Audi 90 B3 Quattro
89-90.jpg Source Development chain
1983: Audi 80 B2 Quattro
1988: Audi 90 B3 Quattro

Specifications

Group/Class A/8 Homologation number: A 5346
Years active 1988 - 1990 Homologation start: 1/1/1988
Engine
Type NG, straight 5cyl, 4 stroke, petrol engine located front longitudinal with 27.2o right inclination
Capacity 2309.3 cc WRC: 2309.3 cc
Bore x Stroke (mm) 82.5 x 86.4
Compression ratio 12.0:1
Output power - torgue 195 HP / 6500 rpm 24.5 kgm (240 Nm) / 5250 rpm
Main bearings 6 of 46mm diameter connecting rod length between centers 144mm, big end bearing diameter 50.6mm
Materials block: cast iron, 277.8mm height cylinderhead: aluminium alloy 132.9mm height
Cams/valves 1 overhead camshaft (SOHC), belt driven 2 valves/cyl. - 10 valves total. 40mm inlet valve diameter, 33mm exhaust valve diameter. 0o angle between inlet valve and vertical, 0o angle between exhaust valve and vertical. 2 coil springs per valve
Aspiration natural, Bosch KE-jetronic multipoint mechanical/electronic fuel injection
Ignition electronic, firing order 1-2-4-5-3
Cooling system watercooled 8 lt
Lubrication system wet sump 4 lt
Transmission
Type four wheel drive 5 speed manual gearbox
Gearbox ratios 1st: 3.545/1 (39/11)
2nd: 2.105/1 (40/19)
3rd: 1.300/1 (39/30)
4th: 0.942/1 (33/35)
5th: 0.769/1 (30/39)
R: 3.500/1 (35/10)
1st: 3.111/1 (28/9)
2nd: 2.273/1 (25/11)
3rd: 1.706/1 (29/17)
4th: 1.318/1 (29/22)
5th: 1.125/1 (27/24)
or 5th: 1.040/1 (26/25)
R: 3.500/1 (42/12)
Diffrential ratio front and rear: 4.111/1 (37/9), 4.143/1 (29/7), 4.125/1 (33/8), 4.222/1 (38/9), 4.556/1 (41/9), 4.571/1 (32/7), 4.625/1 (37/8), 4.857/1 (34/7), 4.875/1 (39/8), 5.125/1 (41/8), 5.143/1 (36/7), 5.250/1 (42/8), 5.286/1 (37/7) output from gearbox hollow secondary shaft totorsen center differential with two outputs, 1st to hypoid spiral bevel gear limited slip front differential homocentrically through secondary hollow shaft of gearbox, 2nd to hypoid spiral bevel gear limited slip rear differential
Clutch dry, single disk
Chassis
Type steel monocoque Typ 89Q chassis version of VW B3 platform with roll-cage. Front and rear steel subframes. 4 door saloon steel bodyshell with polypropylene bumpers
Front suspension Mac pherson strut with lower wishbone, coil spring, telescopic gas shock absorber and antiroll bar
Rear suspension Mac pherson strut with lower wishbone, coil spring, telescopic gas shock absorber and antiroll bar
Steering system rack and pinion with hydraulic power assistance 3.2 turns lock to lock. 16.8/1, 13.4/1
Brakes front ventilated disks 256mm diameter with 1 cast iron piston caliper, or 280/295/304mm diameter with 4 aluminium piston calipers. Rear solid disks 245mm diameter with 1 cast iron piston caliper, or ventilated disks 280/295/304mm disk diameter with 4 aluminium piston calipers dual circuit with servo, adjustable ratio split front to rear
Dimensions
length: 4.394 m (173.0 in) width: 1.704 m (67.1 in) height: 1.397 m (55.0 in)
wheelbase: 2.537 m (99.9 in) front track: 1.417 m (55.8 in) rear track: 1.426 m (56.1 in)
Rims - tires 6" - 7" x 14 - 15"
Weight 1150 kg front/rear: 66% - 34%
Weight/power 5.9 kg/HP
Fuel tank 70 - 80 lt

Results in WRC

Statistics

1988 1989 1990 1991 1992 1993 1994 1995 Total
Total WRC results
Races 3 11 10 4 5 3 1 1 38
Entries/finishes 3/2 21/9 18/11 9/5 8/5 5/4 1/1 1/1 66/38 (57.6%)
Total points 9 10 24 15 18 1 3 80
(2.105 per race)
(1.250 per entry)

Races

Works team: -

Season
Entry Rally event
Driver
Codriver
Team M.C
Entry list
SVE
Entry list
POR KEN TdC GRE Oly (N.Z) ARG FIN (CdI) S.R RAC
Rudi Stohl
Ernst Röhringer
4th
Lasse Gundler
Johnny Johansson
Team V.A.G Sverige dnf
Paola De Martini
Umberta Gibellini
Audi Sport Europa Team 9th
Kari Kivenne
Timo Kivenne
dnf
Total points
()
9 7 2
Statistics
Starts/finishes 4/2 1/1 1/0 1/1 1/0

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Rudi Stohl in Acropolis '89
goettlicher-audi-portugal1990.jpg Source
Kurt Göttlicher/Ernst Röhringer in Portugal '90
AUDI+80+QUATTRO.jpg Source

Article from 4T 228, 9/1989

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Drawings

audi-90-1988.gif Source
audi_90_quattro_20v_1989-44497.jpg Source
audi-80_x.jpg Source

Transmission

audi-quattro-II_x.jpg Source
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