Saab 99 group 2 (1973)
 Source |
Development chain 1966: Saab 96 V4 1971: Saab 96 V4 1.8 1973: Saab 99 EMS 1978: Saab 99 Turbo |
EMS: Electronic [fuel injection] Manual [transmission] Special
Specifications
| Group/Class | 2 | Homologation number: 5534 and A5004 | |
| Years active | 1973-76 | Homologation start: 1/11/1973 and 1/2/1982 Homologation end: 1/1/1982 and 31/12/1990 |
|
| Engine | |||
|---|---|---|---|
| Type | Saab B, straight 4 cyl, 4 stroke, petrol engine | located front longitudinal with 45o inclination to the drivers side | |
| Capacity | 1985 cc | WRC: 1985 cc | |
| Bore x Stroke (mm) | 90.0 x 78.0 | ||
| Compression ratio | 8.8:1, 1975: 9.25:1 | ||
| Output power - torgue | 95 HP @ 5200 rpm 110 HP @ 5500 rpm (inj) 1975: 100 HP @ 5200 rpm 118 HP @ 5500 rpm (inj) 1977: 108 HP @ 5200 rpm |
16 kgm @ 3500 rpm 17kgm @ 3700 rpm (inj). 1975: 16.5 kgm @ 3500 rpm 17kgm @ 3700 rpm (inj) 1977: 16.7 kgm @ 3300 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, 4 coil springs per valve | |
| Aspiration | natural with 1 x Zenith-Stromberg 175 CD-25, multipoint fuel injection with Bosch Roll cell type injection pump. 1977: 2 x Zenith 150 CD carburetors | ||
| Ignition | Firing order 1-3-4-2 | ||
| Cooling system | jacketed watercooled | 9.5 lt water capacity | |
| Lubrication system | wet sump | 3.5 lt oil capacity | |
| Transmission | |||
| Type | front wheel drive | Saab, 4 speed manual gearbox | |
| Gearbox ratios | constant: 1.00/1 (33/18) 1st: 3.44/1 (30/16) or 3.24/1 (30/17) 2nd: 2.07/1 (26/23) 3rd: 1.39/1 (22/29) 4th: 1.00/1 R: 3.78/1 (33/16) or 3.67/1 (34/17) |
constant: 1.00/1 (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) |
constant: (33/18) 1st: 3.44/1 (30/15) 2nd: 2.07/1 (26/23) 3rd: 1.39/1 (22/29) 4th: 1.00/1 R: 3.78/1 (33/16) |
| Diffrential ratio | 3.89/1 (35/9), 5.17/1 (31/6), 4.22/1 (38/9), 1982: 4.86/1 (34/7). Primary drive: 1.00/1 (20/20), 1.05/1 (20/19), 0.95/1 (19/20) |
spiral bevel gear front differential | |
| Clutch | dry single disc clutch, 216 mm diameter | ||
| Chassis-body | |||
| Type | steel monocoque Saab 997 chassis with roll-cage. 2 or 4 door salon steel bodyshell with steel front and rear bumbers. Group 2: extended wheel arches | ||
| Front suspension | double wishbones with coil springs, telescopic shock absorbers and anti-roll bar | ||
| Rear suspension | trailing arms in U shape rigid rear axle with coil springs and telescopic shock absorbers | ||
| Steering system | rack and pinion (no servo) | 3.75 or 3.25 turns lock to lock, 18.6:1 ratio | |
| Brakes | front solid disks 270mm diameter with 2 piston calipers 48mm diameter, rear solid disks 270mm diameter with 2 piston calipers 27mm diameter. Group 2: front ventilated discs 270 mm diameter with 4 piston calipers (Teves 2 L4 34) 34 mm diameter, rear solid discss 250 mm diameter with 2 (Teves LC1 33W) piston calipers 33 mm diameter. 1975: front solid discs 280 mm diameter with 1 piston caliper 54 mm diameter, rear solid discs 270 mm diameter with 2 piston calipers 27 mm diameter |
dual circuit with vacuum servo | |
| Dimensions | |||
| length: 4.370 m (172") | width: 1.690 m (66.5"), group 2: +100mm | height: 1.440 m (56.7") | |
| wheelbase: 2473 mm (97.4") | front track: 1390 mm (48.03") | rear track: 1400 mm (48.03") | |
| Rims - tires | 4.5" or 5" x 15" | ||
| Weight | 1010-1175 kg | ||
| Fuel tank | 45 lt | ||
Results in WRC
Races
Works team: Saab-Scania
Season
| Entry | Rally event | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Driver Codriver |
Team | MC | SVE Entry list |
POR | KEN | GRE | MAR | FIN | S.R | TdC | RAC | |||||
| Ulf Sundberg Mats Nordström |
5th | |||||||||||||||
| Åke Gustavsson Göran Gustavsson |
9th | |||||||||||||||
| Erik Johansson Jean Ringberg |
? | dnf | ||||||||||||||
| Kurt Malmgren | ? | |||||||||||||||
| Svante Olsson Marianne Malmqvist |
? | |||||||||||||||
| Thomas Carlsson Patric Toorell |
? | |||||||||||||||
| D Zevlaris (LE Saloon) Andreas Karallis |
dnf | |||||||||||||||
| Brian Tarrant Donald Daly |
Averys Wines | dnf | ||||||||||||||
| Total points () |
8 | 8 | ||||||||||||||
| Statistics | ||||||||||||||||
| Others starts/finishes | 9/2 | 6/2 | 1/0 | 2/0 | ||||||||||||
Source
Drawings
Source
page revision: 21, last edited: 13 Jan 2019 16:57