VAZ Lada 2103 group 2 (1973)
gr.jpg
gb.jpg
Home » Rally Cars » VAZ Lada 2103
280px-Lada_%287907461522%29.jpg Source Development chain
1973: VAZ Lada 2103
1976: VAZ Lada 21011 1.6

Specifications

Click here
Click here for street version

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
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)
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

Season
Entry Rally event
Driver
Codriver
Team POR KEN FIN S.R R.L P.R RAC TdC
Leontiy Potapchik
Lev Shuvalov
works dnf
Trond Schea
Per A. Bakke
Konela Norge Bil A/S dnf dnf
Wenche Knudtzen
E. Huseby Kvaalen
Konela Norge Bil A/S dnf
Statistics
Others starts/finishes 4/0 2/0 2/0

Article

Click here

VAZ2103rally_2.jpg Source
Leontiy Potapchik - Lev Shuvalov in 1000 lakes '74
maxresdefault.jpg Source
VAZ2103rally_3.jpg Source

Drawings

lada-2103.dimensions.jpg Source
vaz-2103-3.jpg Source
Unless otherwise stated, the content of this page is licensed under Creative Commons Attribution-ShareAlike 3.0 License