Lancia Beta Monte Carlo group 4 (1975)
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Development chain 1974: Lancia Beta Coupe 1975: Lancia Beta Monte Carlo 1982: Lancia Rally 037 1984: Lancia Rally 037 Evo |
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Table of Contents
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Specifications
1940 units built
Click here and here and here for series I
Click here for series II
Manuals
Technical revue - part list
| Group/Class | 4/3 | Homologation number: 643, 3074 and transfer group B and B202 | |
| Years active | 1974 - 1975 | Homologation start: 1/10/1975, 1/8/1976 and 1/8/1982 Homologation end: 31/12/1981 and 31/12/1987 |
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| Engine | |||
|---|---|---|---|
| Type | Fiat Twin Cam (Lambredi), Type 134AS.000, straight 4 cyl, 4 stroke, petrol engine | located middle transverse | |
| Capacity | 1994 cc | WRC: 1994 cc | |
| Bore x Stroke (mm) | 84.0 x 90.0 | ||
| Compression ratio | 8.9:1 | ||
| Output power - torgue | 180-200 HP | ||
| Main bearings | forged steel crankshaft with 5 main bearings 53mm main journal diameter, and 50.8 mm big end journal diameter | connecting rod length between centers 145mm, 53.9mm big end bearing tunnel diameter, alluminium alloy piston with 38.45mm compression height | |
| Materials | block: cast iron, 229 mm deck height | cylinderhead: cross flow aluminium alloy with hemispherical combustion chambers | |
| Cams/valves | 2 overhead camshafts (DOHC), belt driven | 2 valves per cyl - 8 valves total. 42.4 mm inlet valve diameter, 36.15 mm exhaust valve diameter. 2 coil springs per valve. 65º angle between inlet valve axis and exhaust valve axis. 1982, group B: 43.5mm inlet valve diameter, 38.5mm exhaust valve diameter |
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| Aspiration | natural, 1 x Weber 34 DATR200 carburetor | ||
| Ignition | electronic with rpm limiter, firing order 1-3-4-2, 12V battery 45Ah, alternator 44A. Spark plugs Champion N7Y | ||
| Cooling system | jacketed watercooled with pump, radiator, 250 mm diameter-4 blades fan and thermostat | 14 lt | |
| Lubrication system | wet sump. Group 4: dry sump with 1 oil cooler | 5 lt. Group 4: 15 lt | |
| Transmission | |||
| Type | front wheel drive | Colotti 5 speed gearbox | |
| Gearbox ratios | 1st: 3.750/1 (45/12) 2nd: 2.235/1 (38/17) 3rd: 1.522/1 (35/23) 4th: 1.152/1 (38/33) 5th: 0.925/1 (37/40) R: 3.071/1 (43/14) |
1st: 3.500/1 (42/12) 2nd: 2.467/1 (37/15) 3rd: 1.895/1 (36/19) 4th: 1.522/1 (35/23) 5th: 1.280/1 (32/25) R: 3.071/1 (43/14) |
Group 4: 1st: 2.312/1 (37/16) 2nd: 1.737/1 (33/19) 3rd: 1.391/1 (32/23) 4th: 1.148/1 (31/27) 5th: 0.965/1 (28/29) R: 3.071/1 (43/14) |
| Diffrential ratio | 3.714/1 (52/14), 4.461/1 (58/13). Group 4: 3.400/1 (51/15), 3.642/1 (51/14), 3.785/1 (53/14), 3.928/1 (55/14), 4.071/1 (57/14), 4.214/1 (59/14), 4.583/1 (55/12) | helical gears 40% limited slip front differential | |
| Clutch | dry single disc, 215mm diameter | ||
| Chassis-body | |||
| Type | steel monocoque Lancia 137 AS chassis with front suspension subframe and rear suspension bridge. 2 door coupe steel bodyshell. group 4: extended plastic wheel arches | ||
| Front suspension | mc pherson strut with lower Α wishbone, coil spring, telescopic shock absorber and anti-roll bar | ||
| Rear suspension | mc pherson strut with lower Α wishbone, coil spring, telescopic shock absorber and anti-roll bar | ||
| Steering system | rack and pinion (no servo). 10/1975+: hydraulic power assistance | 19.7/1 or 18.4/1 ratio. 3.7 turns lock to lock, 1980, group 4: 3.4 or 2.9 turns | |
| Brakes | front solid discs with 227/251mm disk diameter and 1 piston caliper 48mm diameter. Rear solid discs with 227/251mm disk diameter and 1 piston caliper 38 mm diameter. Group 4: front/rear ventilated disc 251/267mm diameter with 2 piston calipers 38.1mm diameter. 1982: front ventilated discs 276mm diameter with 4 piston calipers 44.4 mm diameter, or 253mm disc diameter with 4 piston calipers 42mm diameter, rear ventilated discs 253mm diameter with 2 or 4 piston calipers 38mm diameter |
dual circuit with vacuum Benditalia Hydrovac servo | |
| Dimensions | |||
| length: 3.813 m (150.1") | width: 1.690 m (66.5"), group 4: +100 mm | height: 1.190 m (46.9") | |
| wheelbase: 2.300 m (90.6") | front track: 1.412 m (55.6") | rear track: 1.456 m (57.3") | |
| Rims - tires | 5,5J x 13" or 14" | 195/50VR13 (gravel), 235/50VR13 (tarmac) | |
| Weight | 870-920 kg | ||
| Fuel tank | 60 lt | ||
3/3V (1/1/1980) 1.8 lt engine
| Engine | ||
|---|---|---|
| Type | Fiat Twin Cam (Lambredi), Type 828 AC.1.000, straight 4cyl, 4 stroke, petrol engine | located front transverse |
| Capacity | 1756 cc | WRC: 1756 cc |
| Bore x Stroke (mm) | 84.0 x 79.2 | |
| Compression ratio | 8.1:1 | |
| Output power - torgue | 120 HP @ 6200 rpm 195 HP @ 7700 rpm |
15.3 kgm @ 4500 rpm 22.4 kgm (220 Nm) @ 5500 rpm |
| Main bearings | forged steel crankshaft with 5 main bearings 53mm main journal diameter, and 50.8 mm big end journal diameter | connecting rod length between centers 136mm, aluminium alloy pistons with 37.7 mm compression height |
| Materials | block: cast iron, 220 mm deck height | cylinderhead: cross flow aluminium alloy with hemispherical combustion chambers |
| Cams/valves | 2 overhead camshafts (DOHC), belt driven | 2 valves per cyl - 8 valves total. 41.8 mm inlet valve diameter, 36.15 mm exhaust valve diameter. 2 coil springs per valve |
| Aspiration | natural, 1 x Weber 32 DATRA/13/102-B8 carburetor | |
| Ignition | electronic with rpm limiter, firing order 1-3-4-2, 12V battery | |
| Cooling system | jacketed watercooled with pump, radiator, 252 mm diameter-4 blades fan and thermostat | 8.3 lt |
| Lubrication system | wet sump | 4 lt |
Results in WRC
Races
Season
| Entry | Rally event | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Driver Codriver |
Team | MC | SVE Entry list |
POR | KEN | S.P | GRE | FIN | CAN | S.R | TdC | RAC | ||||
| Giorgio Schön Emilio Baj Macario |
38th* | |||||||||||||||
| Statistics | ||||||||||||||||
| Others starts/finishes | 1/1 | 1/1 | ||||||||||||||
*Group 3 entries
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Drawings
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Suspension
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page revision: 91, last edited: 17 Jan 2019 20:25