Polski Fiat 125p 1600 Monte Carlo group 2 (1974)
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Specifications
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| Group/Class | 2 | Homologation number: 5557 (2/2V) | |||
| Years active | 1974-1978 | Homologation start: 1/4/1974 Homologation end: 31/12/1981 |
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| Engine | |||||
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| Type | Group 2 only: Fiat Twin Cam (Lambredi) Type 132A.000, straight 4 cyl, 4 stroke, petrol engine | located front longitudinal | |||
| Capacity | 1592.4 cc | WRC: 1592.4 cc | |||
| Bore x Stroke (mm) | 80.0 x 79.2 | ||||
| Compression ratio | 9.0-9.2:1 | ||||
| Output power - torgue | 98 HP @ 6000 rpm | 13.2 kgm @ 4000 rpm | |||
| Main bearings | 5 of 50.9 mm diameter | connecting rod length between centers 136mm, big end bearing diameter 48.3mm, aluminium alloy piston 42.25 mm piston height | |||
| Materials | block: cast iron | cylinderhead: cross-flow aluminium alloy with hemispherical combustion chambers | |||
| Cams/valves | 2 overhead camshafts (DOHC), belt driven | 2 valves/cyl. - 8 valves total. 41.4mm inlet valves diameter, 36mm exhaust valves diameter. 2 coil springs per valve | |||
| Aspiration | natural, 1 x Weber 34 DMS or 1 x Solex 34 EIES4 carburetor | ||||
| Ignition | with contact breakers, firing order 1-3-4-2 | 12V battery | |||
| Cooling system | jacketed watercooled with pump, radiator, 280 or 347 mm diameter-4 blades fan and thermostat | 8 lt | |||
| Lubrication system | wet sump | 4 lt | |||
| Transmission | |||||
| Type | rear wheel drive | 4 or 5 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: 1.000/1 (-) R: 3.87/1 (34/15) |
constant: 1.556/1 (28/18) 1st: 3.67/1 (33/14) 2nd: 2.100/1 (27/20) 3rd: 1.361/1 (21/24) 4th: 1.000/1 (-) 5th: 0.881/1 (17/30) R: 3.526/1 (34/15) |
constant: 1.238/1 (26/21) 1st: 2.724/1 (33/15) 2nd: 1.857/1 (27/18) 3rd: 1.351/1 (24/22) 4th: 1.000/1 (-) 5th: 0.840/1 (19/28) R: 2.806/1 (34/15) |
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| Diffrential ratio | 4.1/1 (41/10), 4.55/1 (41/9), 5.375/1 (43/8) | hypoid spiral bevel gears limited slip rear differential | |||
| Clutch | dry single plate, 200 mm diameter | ||||
| Chassis-body | |||||
| Type | steel monocoque FSO 115C.176 chassis with roll-cage. 2 door saloon steel bodyshell. group 2: with plastic extended wheel arches | ||||
| Front suspension | double wishbones, coil springs, telescopic shock absorbers and anti roll bar | ||||
| Rear suspension | live axle with semi-eliptic leaf springs, 1977: 2 upper longitudinal radius arms and telescopic shock absorbers | ||||
| Steering system | FMS 000008 worm and roller | 3.75 turns lock to lock | |||
| Brakes | solid disks all around, 227 mm diameter front 1 piston caliper 48 mm diameter, rear 1 piston caliper 34 mm diameter, 1977: front ventilated disks 256 mm diameter with 2 piston calipers 48 mm diameter, rear solid disks 256 mm diameter with 2 piston calipers 34 mm diameter | dual circuit with vacuum servo | |||
| Dimensions | |||||
| length: 4.233 m (166.7") | width: 1.625 m (64"), group 2: +100mm | height: 1.440 m (56.7") | |||
| wheelbase: 2.505 m (98.6") | front track: 1.298 m (51.1") | rear track: 1.275 m (49.41") | |||
| Rims - tires | 4.5-5.5 x 13" | ||||
| Weight | 980 - 1000 kg | ||||
| Fuel tank | 45 lt | ||||
Results in WRC
Races
Works team: Polski FIAT
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Source1800 Acropolis
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page revision: 32, last edited: 16 Jan 2019 15:31