Mitsubishi Lancer A174A group 2 (1980)
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Also called Mitsubishi Lancer EX and Mitsubishi Lancer 1600 GSR
Specifications
Click here| Group/Class | 2 | Homologation number: 5787 and A5143 | ||||
| Years active | 1980 | Homologation start: 1/1/1980 and 1/5/1983 Homologation end: 31/12/1981 and 31/12/1989 |
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| Engine | ||||||
|---|---|---|---|---|---|---|
| Type | Mitsubishi Saturn 4G32, straight 4cyl, 4 stroke, petrol engine | located front longitudinal with 4o inclination | ||||
| Capacity | 1597 cc | WRC: 1597 cc | ||||
| Bore x Stroke (mm) | 76.9 mm x 86.0 | |||||
| Compression ratio | 9.5:1 | |||||
| Output power - torgue | ||||||
| Main bearings | forged steel crankshaft with 5 main bearings 57mm. Big end bearings journal diameter 45mm. Silent Shaft Technology, 2 counterbalancing shafts that rotated in opposite directions, cancelling the power pulses inherent in an inline four-cylinder engine | connecting rod length between centers 153.7mm, big end bearing tunnel diameter 48mm, aluminium alloy piston with 34mm compression height, piston rings 2/2/4mm, piston pin 19mm diameter | ||||
| Materials | block: cast iron, 87.5 mm bore spacing | cylinderhead: cross flow aluminium alloy with hemispherical combustion chambers | ||||
| Cams/valves | single overhead camshaft (SOHC), belt driven | 2 valves/cyl. - 8 valves total, 38 mm inlet valve diameter, 31 mm exhaust valve diameter, 23o angle between inlet and exhaust valve axis | ||||
| Aspiration | natural, 2 x Mikuni 28-32 DIDSA carburetors | |||||
| Ignition | electronic with contact breakers, firing order 1-3-4-2, 12V battery | |||||
| Cooling system | jacketed watercooled with pump, radiator, 340 mm diameter-7 blades fan and thermostat | 6 lt | ||||
| Lubrication system | wet sump | 4 lt | ||||
| Transmission | ||||||
| Type | rear wheel drive | Mitsubishi KM119, 5 speed manual gearbox | ||||
| Gearbox ratios | constant: 1.556/1 (28/18) 1st: 3.44/1 (31/14) 2nd: 2.00/1 (27/21) 3rd: 1.32/1 (22/26) 4th: 1.00/1 5th: 0.85/1 (17/31) R: 3.67/1 (33/15 x 15/14) |
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| Diffrential ratio | 3.91/1 (43/11), 4.22/1 (38/9), 4.63/1 (37/8). Only in group 1/2: 3.55/1 (39/11), 4.88/1 (39/8), 5.29/1 (37/7) |
hypoid spiral bevel gears rear differential | ||||
| Clutch | dry single plate 202mm diameter | |||||
| Chassis-body | ||||||
| Type | steel monocoque Mitsubishi A174A chassis. 4 door saloon steel bodyshell with steel doors, steel front/rear bonnets, and polypropylene front/rear bumpers | |||||
| Front suspension | mcpherson strut with one lower transverse arm and a longitudinal radius rod, coil springs, telescopic shock absorbers and anti roll bar | |||||
| Rear suspension | live axle with 2 lower longitudinal radius links, 2 upper semi trailing locating (45o) links, coil springs and telescopic shock absorbers | |||||
| Steering system | recirculating ball (no servo) | 3.5 turns lock to lock, 15.1/1 or 18.1/1 ratio | ||||
| Brakes | front solid discs 229/232mm diameter with 1 cast iron piston caliper 51.1 mm diameter. Rear solid discs 228/231mm diameter with 1 cast iron piston caliper 38.1mm diameter | dual circuit with Jido Shakiki vacuum servo | ||||
| Dimensions | ||||||
| length: 4.225m (166.3") | width: 1.612 m (63.5") | height: 1.385 m (54.5") | ||||
| wheelbase: 2.440 m (96.7") | front track: 1.335 m (52.6") | rear track: 1.325 m (52.2") | ||||
| Rims - tires | steel or aluminium alloy 5J x 13" | 165 SR x 13 | ||||
| Weight | 950 kg | |||||
| Fuel tank | 50 lt | |||||
| Drag coefficient | 0.49 | |||||
Results in WRC
Races
Works team: Mitsubishi Motors
SourceEugène Salim-Clément Konan in Bandama '82
Drawings
Source
page revision: 52, last edited: 11 Dec 2019 19:58