Fiat 131 Mirafiori group 2 (1976)
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Specifications

Click here for 131 Racing

Homologation number: 5669 for 1.8 lt
Homologation start: 1/10/1977
Homologation end: 31/12/1981

Group/Class 2/2 Homologation number: 5608 and transfer group A, 5725
Years active 1976-1981 Homologation start: 2/10/1975 and 1/10/1978
Homologation end: 1/1/1982 and 31/12/1981
Engine
Type Fiat 124 series OHV 131A1.000, straight 4 cyl, 4 stroke, petrol engine.
1977, Supermirafiori Fiat Twin Cam (Lambredi)
located front longitudinal
Capacity 1585 cc WRC: 1585 cc
Bore x Stroke (mm) 84.0 x 71.5
Compression ratio 9.2:1
Output power - torgue 75 HP @ 5500 rpm 12.5 kgm @ 3000 rpm
Main bearings forged steel crankshaft with 5 main bearings 53mm main journal diameter, and 48.2 mm big end journal diameter connecting rod length center to center 128.5mm, alluminium alloy piston with 38.45mm compression height
Materials block: cast iron, 203mm deck height cylinderhead: reverse flow aluminium alloy with "oval" hemispherical combustion chambers and vertical valves
Cams/valves 1 side camshaft with overhead valves (OHV), belt driven 2 valves/cyl. - 8 valves total. 34.5mm inlet valves diameter, 33.65mm exhaust valves diameter. 2 coil springs per valve
Aspiration natural, 1 x Weber 32 ADF 3/200 carburetor. 1976: 1 x Weber 32 ADF 7/200 or Solex C32 TEIE/42 carburetor
Ignition with contact breakers electronic, firing order 1-3-4-2 12V battery
Cooling system jacketed watercooled with pump, radiator, 280 mm diameter-4 blades fan and thermostat 7.6 lt
Lubrication system wet sump 4 lt
Transmission
Type rear wheel drive 4 or 5-speed manual gearbox
Gearbox ratios constant: 1.269/1 (33/26)
1st: 3.612/1 (37/13)
2nd: 2.045/1 (29/18)
3rd: 1.357/1 (31/29)
4th: 1.000/1 (-)
with or without 5th: 0.870/1 (24/35)
R: 3.244/1 (46/18)
constant: 1.185/1 (32/27)
1st: 3.373/1 (37/13)
2nd: 1.909/1 (29/18)
3rd: 1.267/1 (31/29)
4th: 1.000/1 (-)
5th: 0.813/1 (24/35)
R: 3.029/1 (46/18)
1976: constant: 1.555/1 (28/18)
1st: 3.667/1 (33/14)
2nd: 2.100/1 (27/20)
3rd: 1.361/1 (21/24)
4th: 1.000/1 (-)
R: 3.526/1 (34/15)
1976: constant: 1.222/1 (33/27)
1st: 2.66/1 (37/17)
2nd: 1.865/1 (29/19)
3rd: 1.353/1 (31/28)
4th: 1.000/1 (-)
5th: 0.838/1 (24/35)
R: 3.123/1 (46/18)
Diffrential ratio 4.10/1 (41/10), 3.90/1 (39/10) hypoid spiral bevel gears rear differential
Clutch dry single plate, 200 or 215mm diameter
Chassis-body
Type steel monocoque 131A1/2 chassis with roll-cage. 2 or 4 door saloon steel bodyshell with plastic extended wheel arches and front/rear spoilers
Front suspension McPherson strut with lower transverse arm and stabilizer, progressive coil springs and telescopic shock absorbers
Rear suspension live axle with 2 long longitudinal radius links, 2 upper small 30o locating arms, panhard rod and coil springs
Steering system rack and pinion (no servo) 3.4 turns lock to lock
Brakes front solid discs 227mm diameter with 1 piston caliper 48mm diameter, rear drums 228mm diameter with 1 double piston caliper 22.3 mm diameter dual circuit with vacuum servo, 1979, group 2: pressure regulator
Dimensions
length: 4.238 m (166.9") width: 1.632 m (64.3") height: 1.400 m (55.1")
wheelbase: 2.490 m (98.0") front track: 1.372 m (54") rear track: 1.315 m (51.8")
Rims - tires 4.5" x 13". 1977: 5J x 13"
Weight 870-930 kg 50/50% front to rear distribution
Fuel tank 50 lt

Results in WSCC

Season
Fiat 131 Racing 2.0
Car entry Car number/ result
Daytona Brands Hatch Mugello Monza Silver stone Nurb Le Mans Watkins Glen Mosport Valle lunga Dijon
Team 24h 6h 6h 1000km 6h 6h 24h 6h 6h 6h 1000km
East Belgian Racing Team ASBL #92, in entry list
Statistics
Works Starts/finishes 0/0
Driver Team entries and car number
East Belgian Racing Team ASBL
Léon Clohse 92
Emmanuel Remion 92
Alexandre Hüweler 92

Results in WRC

Races

Season
Entry Rally event
Driver
Codriver
Team MC SVE
Entry list
POR KEN GRE MAR FIN S.R TdC RAC
Gear
El-Nak
dnf*
Statistics
Others starts/finishes 1/0 1/0

*Group 1 entries


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