VAZ Lada 2103 group 2 (1973)
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Development chain 1973: VAZ Lada 2103 1976: VAZ Lada 21011 1.6 |
Specifications
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| Group/Class | 2 | Homologation number: 5540 and transfer to group A | |||
| Years active | 1974-1978 | Homologation start: 1/11/1973 Homologation end: 31/12/1981 |
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| Engine | |||||
|---|---|---|---|---|---|
| Type | VAZ, straight 4 cyl, 4 stroke, petrol engine | located front longitudinal | |||
| Capacity | 1452 cc | WRC: 1452 cc | |||
| Bore x Stroke (mm) | 76.0 x 80.0 | ||||
| Compression ratio | 8.8:1 | ||||
| Output power - torgue | 81 HP @ 5600 rpm | 10.8 kgm @ 3500 rpm | |||
| Main bearings | cast iron crank shaft with 5 main bearings 50.8mm diameter | connecting rod length between centers 136mm, big end bearing diameter 47.8, aluminium alloy piston with 37.9 mm piston compression height, and 22 mm pin diameter | |||
| Materials | block: cast iron, 95mm bore spacing | cylinderhead: reverse-flow aluminium alloy with "wedge" shape combustion chambers | |||
| Cams/valves | single overhead camshafts (SOHC), chain driven | 2 valves/cyl. - 8 valves total. 37mm inlet valves diameter, 31.5mm exhaust valves diameter. 2 coil springs per valve | |||
| Aspiration | natural, 1 x M3K 2103-1107010 carburetor | ||||
| Ignition | with contact breakers, firing order 1-3-4-2 | 12V battery | |||
| Cooling system | jacketed watercooled with pump, radiator, 320 mm diameter-4 blades fan and thermostat | 9 lt | |||
| Lubrication system | wet sump | 3.75 lt | |||
| Transmission | |||||
| Type | rear wheel drive | Lada 2103-1700010, 4 speed manual gearbox | |||
| Gearbox ratios | constant: 1.706/1 (29/17) 1st: 3.75/1 (33/15) 2nd: 2.30/1 (27/20) 3rd: 1.49/1 (21/24) 4th: 1.00/1 (-) R: 3.87/1 (34/15) |
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| Diffrential ratio | 4.1/1 (41/10), 4.3/1 (43/10) | hypoid spiral bevel gears rear differential | |||
| Clutch | dry single plate, 200mm diameter | ||||
| Chassis-body | |||||
| Type | steel monocoque chassis with roll-cage. 4 door saloon steel bodyshell with steel bumpers | ||||
| Front suspension | double wishbones, coil springs, telescopic shock absorbers and anti roll bar | ||||
| Rear suspension | live axle with 4 longitudinal radius arms, coil springs and telescopic shock absorbers | ||||
| Steering system | worm and roller | 3 turns lock to lock | |||
| Brakes | front solid disks 253 mm diameter with 1 piston caliper 48 mm piston diameter, rear drums 250 mm diameter with 1 double piston caliper 19.05 mm piston diameter | dual circuit (no servo) | |||
| Dimensions | |||||
| length: 4.116 m (162.1") | width: 1.611 m (63") | height: 1.446 m (56.9") | |||
| wheelbase: 2.424 m (95.4") | front track: 1.365 m (53.7") | rear track: 1.321 m (53") | |||
| Rims - tires | 5 x 13" | 175/70 SR13 | |||
| Weight | 965 kg | ||||
| Fuel tank | 39 lt | ||||
| Drag coefficient | 0.49 | ||||
Results in WRC
Races
Works team: V/O Avtoexport
Article
SourceLeontiy Potapchik - Lev Shuvalov in 1000 lakes '74
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Drawings
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page revision: 74, last edited: 29 Jan 2019 15:45