Mitsubishi Lancer A175A Turbo group A (1982)
 Source |
Development chain 1973: Mitsubishi Lancer A73 1980: Mitsubishi Lancer A175A 1982: Mitsubishi Lancer A175A Turbo 1993: Mitsubishi Lancer RS Evo 1994: Mitsubishi Lancer Evo II 1995: Mitsubishi Lancer Evo III 1997: Mitsubishi Lancer Evo IV 1998: Mitsubishi Lancer Evo V 1999: Mitsubishi Lancer Evo VI |
Development level Group B Group A |
Specifications
| Group/Class | A/8 | Homologation number: A5070 and A5239 | ||||
| Years active | 1980 | Homologation start: 1/10/1982 and 1/7/1984 Homologation end: 31/12/1988 and 31/12/1991 |
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| Engine | ||||||
|---|---|---|---|---|---|---|
| Type | Mitsubishi Sirius 4G62T, straight 4 cyl, 4 stroke, petrol engine | located front longitudinal with 4o inclination | ||||
| Capacity | 1796 cc | WRC: x 1.4 = 2514 cc. 1988: x 1.7 = 3053 cc |
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| Bore x Stroke (mm) | 80.6 mm x 88.0 | |||||
| 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 150mm, big end bearing tunnel diameter 48mm, aluminium alloy piston with 34mm compression height | ||||
| Materials | block: cast iron, 61mm main bearings tunnel diameter | cylinderhead: cross flow aluminium alloy with hemispherical combustion chambers | ||||
| Cams/valves | single overhead camshaft (SOHC), belt driven | 2 valves/cyl. - 8 valves total, 43 mm inlet valve diameter, 35 mm exhaust valve diameter, 23o angle between inlet and exhaust valve axis. 1984, A5239: 20.5o angle between inlet and exhaust valve axis | ||||
| Aspiration | natural, 1 x Mitsubishi (IHI) TC05-12A turbocharger (12 blades cast iron turbine 47.6/56mm in/out diameter, 14 blades aluminium alloy turbine 40/54mm in/out diameter). 1984, A5239: with air/air intercooler. Mikuni ECI electronic 2 points fuel injection | |||||
| 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 | KM132-A, 5 speed manual gearbox | ||||
| Gearbox ratios | constant: 1.474/1 (28/19) 1st: 3.74/1 (33/13) 2nd: 2.14/1 (29/20) 3rd: 1.36/1 (24/26) 4th: 1.00/1 5th: 0.86/1 (18/31) R: 3.67/1 (33/15 x 15/14) |
constant: 1.091/1 (24/22) 1st: 2.85/1 (34/13) 2nd: 2.11/1 (31/16) 3rd: 1.58/1 (29/20) 4th: 1.23/1 (26/23) 5th: 1.00/1 R: 2.65/1 (36/17 x 17/14) |
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| Diffrential ratio | 3.909/1 (43/11), 4.22/1 (38/9), 4.63/1 (37/8). 1984, A5239: 3.308/1 (43/13), 3.545/1 (39/11) |
hypoid spiral bevel gears rear differential | ||||
| Clutch | dry single plate 202mm diameter | |||||
| Chassis-body | ||||||
| Type | steel monocoque Mitsubishi A175A chassis with 20.2kg alumiunium alloy (D40x3.5mm) roll cage. 1984, A5239: 20.5kg A2024TE-T4 (D40x4mm) roll cage. 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 D18-20-22 mm | |||||
| 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) | 20.5/1 ratio. **1984, A5239: 18/1 or 15/1 ratio | ||||
| Brakes | Front ventilated discs 242mm diameter with 1 cast iron piston caliper 53.9 mm diameter, rear solid discs 231mm diameter with 1 cast iron piston caliper 38.1mm diameter. Front ventilated discs 256mm diameter with 1 cast iron piston caliper 50.8/54mm diameter, rear ventilated discs 247mm diameter with 1 cast iron piston caliper 50.8mm diameter. 1984, A5239: Front ventilated discs 256mm diameter with 1 cast iron piston caliper 57.2mm diameter, rear ventilated discs 247mm diameter with 1 cast iron piston caliper 41.3mm diameter |
dual circuit with Jido Shakiki vacuum servo | ||||
| Dimensions | ||||||
| length: 4225 mm (166.3") | width: 1620 mm (63.78") | 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 | 5.5 J-14" (24 mm offset) | 175/70 HR14 or 185/70 R14 | ||||
| Weight | 1000 kg | |||||
| Fuel tank | 50 lt | |||||
| Drag coefficient | 0.49 | |||||
Results in WRC
Races
Works team: -
page revision: 79, last edited: 11 Dec 2019 05:03