Saab 99 Turbo group 2 (1978)
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Home » Rally Cars » Saab 99 Turbo
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1966: Saab 96 V4
1971: Saab 96 V4 1.8
1973: Saab 99 EMS
1978: Saab 99 Turbo

Specifications

Group/Class 2 Homologation number: 652, 5722-trasfer group A, 1695, 658, 5771-transfer group A and A5005
Years active 1978-1982 Homologation start: 2/1/1978, 2/10/1978, 2/1/1979, 2/2/1979, 2/1/1980 and 1/2/1982
Homologation end: 2/10/1978, 1/1/1982, 2/1/1980, 2/2/1979, 1/1/1982 and 1/1/1989
Engine
Type Saab B Turbo B202, straight 4 cyl, 4 stroke located front longitudinal with 45o inclination to the driver's side
Capacity 1985 cc WRC: x 1.4 = 2780 cc
1988: x 1.7 = 3375 cc
Bore x Stroke (mm) 90.0 x 78.0
Compression ratio 7.2:1
Output power - torgue 270 HP / 6000 rpm 34.7 kgm (340 Nm) / 5000 rpm
Main bearings forged steel crankshaft with 5 main bearing's journal 58mm diameter, and 52mm big end journals diameter connecting rod distance center to center 134mm with 56mm big end bearing tunnel diameter, aluminium piston with 40mm Compression Height
Materials block: cast iron with cast iron cylinder liners cylinderhead: cross flow aluminium alloy heads with "wedge" shape combustion chambers
Cams/valves single overhead camshaft (SOHC), chain driven 2 valves / cyl - 8 valves total, 42 mm inlet valve diameter, 35.5 mm exhaust valve diameter sodium filled, 1 coil spring per valve
Aspiration Garrett TC030 turbocharger with 11 blades inconell turbine with 45.7/58.9mm in/out diameter, and 6+6 blades aluminium alloy compressor with 37.7/60.2mm in/out diameter. Bosch K-jetronic mechanical multi point fuel injection.
1980: turbine with 48.6/58.9mm in/out diameter, compressor with 46.4/60.2mm in/out diameter
Ignition electronic, firing order 1-3-4-2
Cooling system jacketed watercooled with pump, radiator, 282 mm diameter-11 blades fan and thermostat 8 lt
Lubrication system wet or dry sump with oil cooler 4 lt
Transmission
Type front wheel drive 4 speed gearbox with 4 chain constant input, located below engine
Gearbox ratios constant: 1.83/1 (33/18)
1st: 3.44/1 (30/16)
2nd: 2.07/1 (26/23)
3rd: 1.39/1 (22/29)
4th: 1.00/1
R: 3.78/1 (33/16)
constant: 1.174/1 (27/23)
1st: 2.20/1 (30/16)
2nd: 1.53/1 (26/20)
3rd: 1.22/1 (25/24)
4th: 1.00/1
R: 2.42/1 (33/16)
Diffrential ratio 3.89/1 (35/9), 5.17/1 (31/6), 1979: 4.857/1 (34/7) ZF spiral bevel gears limited slip front differential
Clutch dry single plate 219mm diameter
Chassis-body
Type steel monocoque chassis with roll-cage. 2 door combi coupe steel bodyshell, with plastic front and rear bumbers
Front suspension double wishbones with pivot mounted coil springs, telescopic gas shock absorbers and anti roll bar
Rear suspension lightweight dead rigid axle located by twin trailing radius arms and panhard rod, coil springs, telescopic gas shock absorbers and anti roll bar
Steering system rack and pinion (no servo) 18.6/1 ratio, 3.4 turns lock to lock
Brakes front solid discs 270mm diameter with 1 piston caliper 54mm diameter. Rear solid discs 270mm diameter with 2 piston calipers 30mm diameter.
Group 2: front ventilated discs 276mm diameter with 4 x Teves 2L4-34 piston calipers 34mm diameter, or 280mm disc diameter with 4 piston calipers 38mm diameter, rear solid discs 250mm diameter with 2 x Teves LC1 33W piston calipers 33mm diameter. Handbreak acting on front wheels
dual circuit with Girling vacuum servo, pressure limiter
Dimensions
length: 4.421 m (174.0") width: 1.690 m (66.5") height: 1.440 m (56.7")
wheelbase: 2.473 m (97.4") front track: 1.410 m (55.5") rear track: 1.430 m (56.3")
Rims - tires 5.5" x 15" 175/70 HR15
Weight 1080-1155 kg
Weight/power 4.0 kg/HP
Fuel tank 55 lt. 1982: 70 lt

Results in WRC

Races

Works team: Saab-Scania

Season
Entry Rally event
Driver
Codriver
Team MC SVE
Entry list
KEN POR GRE FIN CAN S.R CdI TdC RAC
Stig Blomqvist
Hans Sylvan
works drive shaft
Per Eklund
Bjorn Cederberg
works drive shaft
Statistics
Others starts/finishes 2/0 2/0

3004378499_805cc4dc00_o.jpg Source
dogbox1.jpg Source
GRID008427.jpg Source

Drawings

saab_99_turbo_1979.jpg Source

Engine

rwp_saab_turbo_engine.jpg Source
diagram.jpg Source
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