Mazda 323 BD GT group A (1982)
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Development chain 1982: Mazda 323 BD GT 1984: Mazda 323 BD Turbo 1986: Mazda 323 BF 4WD Turbo 1990: Mazda 323 BG8 GTX 1993: Mazda 323 BG8 GTR |
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Specifications
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| Group/Class | A/6 | Homologation number: A5082 and A5182 | ||||
| Years active | 1982-84 | Homologation start: 1/11/1982 and 1/1/1984 Homologation end: 31/12/1990 |
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| Engine | ||||||
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| Type | Mazda E5, straight 4 cyl, 4 stroke, petrol engine | located front transverse vertical | ||||
| Capacity | 1490 cc | WRC: 1490 cc | ||||
| Bore x Stroke (mm) | 77.0 mm x 80.0 | |||||
| Compression ratio | 10.0:1 | |||||
| Output power - torgue | ||||||
| Main bearings | cast iron crankshaft with 5 main bearings 54mm diameter | connecting rod length between centers 136mm. 1984, A5182: 141.2mm. big end bearing tunnel diameter 43mm, aluminium alloy piston | ||||
| Materials | block: cast iron with thin block walls and siamesed cylinders | cylinderhead: cross flow aluminium alloy with hemispherical combustion chambers | ||||
| Cams/valves | single overhead camshaft (SOHC), chain driven, aluminium rocker arms | 2 valves/cyl. - 8 valves total, 36mm inlet valve diameter, 31 mm exhaust valve diameter, 53o angle between inlet and exhaust valve axis, 1 coil spring per valve | ||||
| Aspiration | natural, 2 x Hitachi DCT306W-R1 or DCT306W-L1 double carburetors. 1984: A5182: 2 x Hitachi DCS306-31 double carburetors | |||||
| Ignition | electronic, firing order 1-3-4-2, 12V battery | |||||
| Cooling system | jacketed watercooled with pump, radiator, fan and thermostat | |||||
| Lubrication system | wet sump | |||||
| Transmission | ||||||
| Type | front wheel drive | 5 speed manual gearbox | ||||
| Gearbox ratios | 1st: 3.416/1 (41/12) 2nd: 1.947/1 (37/19) or 1984: 2nd: 1.842/1 (35/19) 3rd: 1.290/1 (40/31) 4th: 0.918/1 (34/37) 5th: 0.775/1 (31/40) R: 3.214/1 (45/14) |
1st: 2.785/1 (39/14) 2nd: 1.947/1 (37/19) 3rd: 1.448/1 (42/29) 4th: 1.290/1 (40/31) 5th: 1.151/1 (38/33) R: 3.214/1 (45/14) |
1984, A5182: 1st: 2.785/1 (39/14) 2nd: 1.842/1 (35/19) 3rd: 1.290/1 (40/31) 4th: 1.088/1 (37/34) 5th: 0.918/1 (34/37) R: 3.214/1 (45/14) |
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| Diffrential ratio | 4.105/1 (78/19), 3.850/1 (77/20), 4.388/1 (79/18) | helical spur gears front differential | ||||
| Clutch | dry single plate | |||||
| Chassis-body | ||||||
| Type | steel monocoque BD1352 or BD1051 chassis with roll-cage. 3 door hatchback steel bodyshell with steel doors, steel front/rear bonnets, and steel+plastic front/rear bumpers | |||||
| Front suspension | mcpherson strut with lower "L" wishbone, coil springs, telescopic shock absorbers and anti roll bar | |||||
| Rear suspension | mcpherson strut with twin trapezoidal links consisting of two lower transverse links and 1 longitudinal radius link, coil springs, telescopic shock absorbers and anti roll bar | |||||
| Steering system | rack and pinion (no servo) | 18.5/1, 13.1/1 ratio | ||||
| Brakes | Front solid discs 227mm diameter with 1 cast iron piston caliper 54 mm diameter, rear drums 180mm diameter with 1 cast iron double piston caliper 17.5mm diameter or solid discs 236mm diameter with 1 cast iron piston caliper 34.9mm diameter. 1985: front ventilated discs 266mm diameter with 4 aluminium piston calipers 38mm diameter, rear ventilated discs 266mm diameter with 2 aluminium piston calipers 41.4mm diameter |
dual circuit with Jido Shakiki vacuum servo | ||||
| Dimensions | ||||||
| length: 3955 mm (155.7") | width: 1630 mm (64.2") | height: 1375 mm (54.1") | ||||
| wheelbase: 2365 mm (93.1") | front track: 1.390 m (54.7") | rear track: 1.395 m (54.9") | ||||
| Rims - tires | 13" | 175/70 SR 13 | ||||
| Weight | 900 kg | |||||
| Fuel tank | 42 lt | |||||
| Drag coefficient | 0.4 | |||||
Results in WRC
Races
Drawings
Source
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page revision: 73, last edited: 11 Dec 2019 19:27