Toyota Supra MA70 3.0i group A (1987)
gr.jpg
gb.jpg
Home » Rally Cars » Toyota Supra MA70 3.0i
66ef9.jpg Source Development chain
1987: Toyota Supra MA70 3.0i
1987: Toyota Supra MA70 Turbo

Specifications

Group/Class A/8 Homologation number: A 5331
Years active 1987 Homologation start: 1/4/1987
Engine
Type 7M-GE, straight 6cyl, 4 stroke located front longitudinal
Capacity 2954 cc WRC: 2954 cc
Bore x Stroke (mm) 83.0 x 91.0
Compression ratio 11.0:1
Output power - torgue 270 - 290 HP / 6800 rpm 30.6 kgm (300 Nm) / 6000 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 natural, electronic fuel injection
Ignition electronic, NGK BCPR6EY or BCPR5EP11 spark plug, firing order 1-5-3-6-2-4
Cooling system watercooled 7.5 lt
Lubricating system wet sump 5 lt
Transmission
Type rear wheel drive Hewland or Toyota W58, 5 speed gearbox
Gearbox ratios 1st: /1
2nd: /1
3rd: /1
4th: /1
5th: 1.000/1
1st: 3.285/1
2nd: 1.894/1
3rd: 1.275/1
4th: 1.000/1
5th: 0.783/1
R: 3.768/1
Diffrential ratio 4.550/1 or 4.880/1 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 steel bodyshell
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 ventilated disks all around
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 1450 - 1500 kg
Weight/power 5.3 kg/HP
Fuel tank 70 lt
Drag coefficient 0.33

Results in WRC

Statistics

1987 Total
Total works WRC results
Races 3 3
Entries/finishes 6/3 6/3 (50%)
Total points 18 18
(6 per race)
(3 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 3rd eng ine
Björn Waldegård
Fred Gallagher
works eng ine 6th
Robin Ulyate
Ian Street
works 6th with drawn*
Total points
()
18 13 5
Statistics
Others starts/finishes 6/3 3/2 2/1 1/0

*Private entry


supra_rally.106150506_std.jpg Source
Bjorn Waldergard in Safari rally 1987

Information and articles

Article from 4T 199, 4/1987

Click here

grA87003.jpg Source
7M-GE engine

Street version 4Τ 223, 4/1989

Click here

4870-MA70.jpg Source

Drawings

toyota_celica_supra_3_0_gt_twin_cam_1989-15594.jpg Source
Unless otherwise stated, the content of this page is licensed under Creative Commons Attribution-ShareAlike 3.0 License