Lancia Beta Coupe group 4 (1974)
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Home » Rally Cars » Lancia Beta Coupe 1.8 16V
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1974: Lancia Beta Coupe 1.8
1975: Lancia Beta Monte Carlo
1982: Lancia Rally 037
1984: Lancia Rally 037 Evo

Click here for Italian cars club

Specifications

Documentation Technique for street version

Group/Class 4/3 Homologation number: 3064 and transfer group B
Years active 1974 - 1975 Homologation start: 1/4/1974
Homologation end: 31/12/1981
Engine
Type Fiat Twin Cam (Lambredi), Type 828 AC.1.000, straight 4cyl, 4 stroke, petrol engine located front transverse
Capacity 1756 cc, 1839 cc WRC: 1756 cc, 1839 cc
Bore x Stroke (mm) 84.0 x 79.2, 86.0 x 79.2
Compression ratio 9.8:1, 10.5:1
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 diameter, and 50.8 mm big end journal diameter steel connecting rod, aluminium alloy pistons
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. 42.4 mm inlet valve diameter, 35.6 mm exhaust valve diameter. 2 coil springs per valve. 2/2V: 4 valves/cyl. - 16 valves total.
Aspiration natural, 1 x Solex C34CIC1 or Weber 34 DATR21, 2 x dual Dellorto 48mm carburetors
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
Transmission
Type front wheel drive Colotti 5 speed gearbox
Gearbox ratios 1st: 3.500/1 (42/12)
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)
Diffrential ratio 3.929/1 (55/14), 4.461/1 (58/13) helical gears 40% limited slip front differential
Clutch dry single disc, 215mm diameter
Chassis-body
Type steel monocoque 828 AC 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 wishbone, coil spring, telescopic shock absorber and anti-roll bar
Rear suspension mc pherson strut with one longitudinal and two transverse arms, coil spring, telescopic shock absorber and anti-roll bar
Steering system rack and pinion (no servo). 10/1975+: hydraulic power assistance 3.7 turns lock to lock
Brakes front solid discs with 251mm disk diameter and 2 piston calipers 45 and 34mm diameter. Rear solid discs with 251mm disk diameter and 1 piston caliper 36 mm diameter. Group 4: front ventilated disc 267mm diameter with 4 piston calipers 38.1mm diameter dual circuit with vacuum servo
Dimensions
length: 3.995 m (157.3") width: 1.660 m (65.4"), group 4: +100 mm height: 1.285 m (50.6")
wheelbase: 2.350 m (92.5") front track: 1.406 m (55.3")
1.520 m (59.8") with 9R13		 rear track: 1.392 m (54.8")
1.515 m (59.6") with 9R13
Rims - tires 5.5J x 14", 7x13 (gravel), 9x13 (tarmac) 195/50VR13 (gravel), 235/50VR13 (tarmac)
Weight 904 kg
Fuel tank 52 lt

9/1E (1976) for 2 lt engine

Engine
Type Fiat Twin Cam (Lambredi), straight 4cyl, 4 stroke, petrol engine located front transverse
Capacity 1994cc WRC: 1994cc
Bore x Stroke (mm) 84.0 x 90.0
Compression ratio 8.9:1
Output power - torgue 119 HP @ 5500 rpm 17.7 kgm @ 2800 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 145mm, aluminium alloy pistons with 38.45 mm 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, 35.6 mm exhaust valve diameter. 2 coil springs per valve
Aspiration natural, 1 x Solex C34CIC1 or Weber 34 DATR21
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

Works team:

  • works: Lancia Marlboro
  • works1: Lancia Alitalia
Season
Entry Rally event
Driver
Codriver		 Team POR KEN FIN S.R R.L P.R RAC TdC
Shekhar Mehta
Martin Holmes		 works 4th
Simo Lampinen
John Davenport		 works excl uded 2nd 4th 10th
Mauro Pregliasco
Angelo Garzoglio		 works eng ine engine mountings acci dent
Amilcare Ballestrieri
Geraint Phillips		 works eng ine
Total points
()		 24 7 9 7 1
Statistics
Others starts/finishes 9/4 2/1 2/1 2/1 2/1 1/0
%252B1974%2B%2BSAN%2BREMO%2BS-METHA-M.HOLMES.jpg Source
Rallye San Remo '74: Shekhar Mehta
1604BPE_32.jpg Source
Robin Ulyate/Ian Smith in Safari rally '75
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lancia-beta-coupe-rallye_5.jpg Source

Drawings

lancia_beta_coupe_1980.jpg Source
lancia-beta.png Source
page revision: 108, last edited: 17 Jan 2019 20:59
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