Toyota Supra MA70 Turbo group A (1987)
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1987: Toyota Supra MA70 3.0i
1987: Toyota Supra MA70 Turbo

Specifications

Group/Class A/8 Homologation number: A 5334
Years active 1987 - 1989 Homologation start: 1/7/1987
Engine
Type 7M-GTE, straight 6cyl, 4 stroke located front longitudinal
Capacity 2954 cc WRC: x 1.4 = 4136 cc (1987)
x 1.7 = 5022 cc (1988+)
Bore x Stroke (mm) 83.0 x 91.0
Compression ratio 8.4:1
Output power - torgue 400 HP / 6600 rpm 48.9 kgm (480 Nm) / 4000 rpm
Main bearings 7 of 60mm diameter connecting rod big end bearing internal diameter 55mm
Materials block: cast iron cylinderhead: aluminium alloy
Cams/valves 2 overhead camshafts (DOHC), belt driven 4 valves/cyl. - 24 valves total. 25o angle between inlet valve axis and vertical, 25o angle between exhaust valve axis and vertical
Aspiration CT26 turbocharger with intercooler, electronic fuel injection pressure:
Ignition electronic, NGK BCPR6EY or BCPR6RP-N8 spark plug, firing order 1-5-3-6-2-4
Cooling system watercooled 7.5 lt
Lubricating system wet sump 5.1 lt
Transmission
Type rear wheel drive Hewland or Toyota R154, 5 speed gearbox
Gearbox ratios 1st: /1
2nd: /1
3rd: /1
4th: /1
5th: /1
1st: 3.250/1
2nd: 1.955/1
3rd: 1.310/1
4th: 1.000/1
5th: 0.753/1
Diffrential ratio 4.880/1 or 4.550/1 lypoid spiral bevel gears limited slip rear differential
Clutch dry, double disk
Chassis-body
Type steel monocoque MA70 chassis of Toyota A platform with roll-cage. 3 door coupe body shell
Front suspension double wishbones with coil springs and telescopic gas shock absorbers
Rear suspension double wishbones with coil springs and telescopic gas shock absorbers
Steering system rack and pinion
Brakes front and back ventilated disks
Dimensions
length: 4.630 m (181.3 in) width: 1745 m (68.7 in) height: 1.330 m (52.4 in)
wheelbase: 2.596 m (102.2 in) front track: 1.470 m (57.9 in) rear track: 1.475 m (58.0 in)
Rims - tires 16" Pirelli, front: 165/80/16" or 175/75/16" or 185/65/16",
rear: 185/75/16" or 205/65/16" or 215/60/16"
Weight 1350 - 1440 kg
Weight/power 3.6 kg/HP
Fuel tank 70 lt
Drag coefficient 0.33

Results in WRC

Statistics

1987 1988 1989 Total
Works
Races 1 1 2
Entries/finishes 2/0 3/3 5/3 (60%)
Others
Races 1 1
Entries/finishes 2/2 2/2 (100%)
Total WRC results
Races 1 1 1 3
Entries/finishes 2/0 3/3 2/2 7/5 (71.4%)
Total points 17 13 30
(10 per race)
(4.286 per entry)

Races

Works team: Toyota Team Europe

Season
Entry Rally event
Driver
Codriver
Team MC SVE
Entry list
POR KEN TdC GRE Oly (NZ) ARG FIN (CdI) SR RAC
Lars-Erik Torph
Benny Melander
works with drawn
Björn Waldegård
Fred Gallagher
works with drawn
Statistics
Others starts/finishes 2/0 2/0

waldegaard4_clip_image015.jpg Source
Björn Waldegård in Safari '89
waldegaard4_clip_image012.jpg Source
Björn Waldegård in Olympus '87

Drawings

toyota_celica_supra_3_0_gt_twin_cam_1989-15594.jpg Source
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