Skoda 130 RS group 2 (1975)
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Specifications
65 units built
Manual
| Group/Class | 2 | Homologation number: 1668 and 1676 | ||
| Years active | 1975 - 1979 | Homologation start: 1/5/1975 and 1/7/1976 Homologation end: 31/12/1979 and 31/12/1981 |
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| Engine | ||||
|---|---|---|---|---|
| Type | Skoda, straight 4cyl, 4 stroke, petrol engine | located rear longitudinal with 30o inclination to co driver's side | ||
| Capacity | 1289 cc | WRC: 1289 cc | ||
| Bore x Stroke (mm) | 75.7 x 72.0 | |||
| Compression ratio | 10.0:1 | |||
| Output power - torgue | 82 HP @ 6250 rpm 128 HP @ 7000 rpm, 142 HP @ 8500 rpm |
10.4 kgm @ 5000 rpm 13.0 kgm @ 5500 rpm, 16.0 kgm @ 4500 rpm |
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| Main bearings | forged steel crankshaft with 5 main bearings 55 mm diameter | big end bearing 45 mm diameter, aluminium alloy piston with 34 mm compression height | ||
| Materials | block: aluminium alloy with cast iron cylinder liners | cylinderhead: reverse flow grey cast iron with "wedge" shaped combustion chambers | ||
| Cams/valves | side camshaft with overhead valve (OHV) | 2 valves/cyl. - 8 valves total, 34 mm inlet valve diameter, 27.4 mm exhaust valve diameter. 2 coil springs per valve | ||
| Aspiration | natural, with 2 x Weber 40 DCOE2 carburetors | |||
| Ignition | electronic, firing order 1-3-4-2 | |||
| Cooling system | jacketed watercooled with pump, radiator, fan and thermostat | 10.2 lt | ||
| Lubrication system | wet or dry sump with 2 oil pumps | 3.5 or 7 lt | ||
| Transmission | ||||
| Type | rear wheel drive | Skoda, 4 or 5 speed manual gearbox | ||
| Gearbox ratios | 1st: 3.80/1 (38/10) 2nd: 2.12/1 (34/16) 3rd: 1.41/1 (31/22) 4th: 0.96/1 (26/27) R: 3.27/1 (36/11) |
1st: 3.23/1 2nd: 2.12/1 (34/16) 3rd: 1.55/1 4th: 1.21/1 5th: 0.96/1 (26/27) R: 3.00/1 |
1976: 1st: 3.08/1 (37/12) 2nd: 1.94/1 (33/17) 3rd: 1.35/1 (31/23) 4th: 1.08/1 (28/26) R: 3.27/1 (36/11) |
1976: 1st: 3.08/1 (37/12) 2nd: 2.19/1 (35/16) 3rd: 1.57/1 (33/21) 4th: 1.16/1 (29/25) R: 3.27/1 (36/11) |
| Diffrential ratio | 4.10/1 (41/10), 3.78/1 (34/9), 4.25/1 (34/8). 1976: 4.44/1 (40/9), 4.22/1 (38/9), 3.90/1 (39/10), 3.70/1 (37/10) 1978: 3.16/1 (38/12), 3.44/1 (31/9) 1979: 4.50/1 (36/8) |
spiral bevel gears rear differential | ||
| Clutch | dry single or double disk 190 mm diameter | |||
| Chassis-body | ||||
| Type | steel monocoque chassis with roll-cage. 2 door coupe steel bodyshell with steel bumbers with extended wheel arches | |||
| Front suspension | double unequal wishbones (lower A wishbone) with coil springs, Bilstein telescopic shock absorbers and anti roll bar | |||
| Rear suspension | semi trailing arm with coil springs, Bilstein telescopic shock absorbers and anti roll bar | |||
| Steering system | worm and gear (no servo) | 2.5 turns lock to lock | ||
| Brakes | front solid disks 259mm diameter with 1 piston caliper 46 mm diameter, rear drums 230mm diameter with 1 dual piston caliper 19 mm diameter | dual circuit with vacuum servo | ||
| Dimensions | ||||
| length: 4.020 m (158.3") | width: 1.720 m (67.7") | height: 1.340 m (52.8") | ||
| wheelbase: 2.400 m (94.5") | front track: 1.410 m (55.5") | rear track: 1.366 m (53.8") | ||
| Rims - tires | 5.5J x 13" | 185/70 VR13 | ||
| Weight | 720 kg | |||
| Fuel tank | 58 lt | |||
| Drag coefficient | 0.40 | |||
Results in WRC
Races
Works team: AMK Skoda AZNP
Article from 4T 65, 2/1976
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page revision: 51, last edited: 17 Jan 2019 05:48