Volvo 142S group 2 (1968)

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Specifications
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Homologation number | 5151 | 5208 | 5289 | 5314 | 5410 |
Model | 144 S | 142 S B20 | 142 S | 142 S | 142/144 GL |
Homologation start | 1/4/1967 | 1/1/1968 | 1/4/1969 | 1/1/1970 | 1/5/1971 |
Homologation end | 1/1/1980 | 1/1/1980 | 1/1/1980 | 1/1/1982 | 1/1/1982 |
Engine capacity | 1778 cc | 1986 cc |
Years active | 1967-1980 | |||
Engine | ||||
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Type | Volvo B18 and Volvo B20B or B20E, straight 4 cyl, 4 stroke, petrol engine | located front longitudinal | ||
Capacity | 1778 cc, 1986 cc | WRC: 1778 cc, 1986 cc | ||
Bore x Stroke (mm) | 1.8: 84.14 x 80.0 mm 2.0: 88.9 x 80.0 mm |
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Compression ratio | 1.8: 10.0:1 2.0: 9.2:1 |
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Output power - torgue | 1.8: 115 hp @ 6000 rpm 2.0: 118 HP @ 5800 rpm GL: 120 HP @ 6500 rpm |
1.8: 15,5 kgm @ 4000 rpm 2.0: 17.0 kgm @ 3000 rpm GL: 17 kgm @ 3500 rpm |
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Main bearings | 5 of 63.45mm diameter, 54.1mm big end journals diameter | aluminium piston with 46mm Compression Height | ||
Materials | block: cast iron | cylinderhead: cast iron | ||
Cams/valves | side camshaft with overhead valves (OHV), gear driven | 2 valves / cyl - 8 valves total, 40 mm inlet valve diameter (44mm for GL), 35 mm exhaust valve diameter, single coil per valve | ||
Aspiration | natural with 2 x SU HS-6 or Zennith/Stromberg 175 CD-2 SE (B20A) carburetors (click here), GL: Bosch multipoint D-jetronic electronic fuel injection (B20E) | |||
Ignition | alternator 12 V, Firing order 1-3-4-2 | |||
Cooling system | jacketed watercooled with pump, radiator, 335 mm diameter-4 blades fan and thermostat | 8.6 lt water capacity, GL: 10 lt | ||
Lubrication system | wet sump | 3.75 lt oil capacity | ||
Transmission | ||||
Type | front wheel drive | Volvo M40 or M41, 4 speed manual gearbox. 1971, group 2: Volvo M400, 5 speed manual gearbox Volvo BW 35 automatic transmission |
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Gearbox ratios | 1.8: constant: 1.641/1 1st: 3.61/1 (33/15) 2nd: 2.37/1 (28/20) 3rd: 1.70/1 (23/22) 4th: 1.00/1 M41 gearbox: electric overdrive 5th: 0.756/1 R: 3.25/1 (32/19) |
1.8: constant: 1.191/1 1st: 2.62/1 (33/15) 2nd: 1.67/1 (28/20) 3rd: 1.24/1 (23/22) 4th: 1.00/1 M41 gearbox: electric overdrive 5th: 0.756/1 R: 3.25/1 (32/19) |
2.0: constant: 1.423/1 1st: 3.13/1 (33/15) 2nd: 1.99/1 (28/20) 3rd: 1.36/1 (22/23) 4th: 1.00/1 M41 gearbox: electric overdrive 5th: 0.797/1 R: 3.25/1 (32/19) |
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Diffrential ratio | M40: 4.10/1 (41/10), M41: 1.8: 4.56/1 (41/9), 2.0: 4.3/1 (43/10), 4.56/1 (41/9), 1.8 group 2 & all 2.0: 4.88/1 (39/8) |
Spicer/dana Powr lock, hypoid bevel gears limited slip rear differential | ||
Clutch | dry single disc clutch, 216 mm diameter | |||
Chassis-body | ||||
Type | steel monocoque chassis with roll-cage, and front axle cross member sub-frame. 2 or 4 door saloon steel bodyshell with steel front and rear bumbers. Group 2: plastic front/rear bonnet and rear window | |||
Front suspension | double unequal wishbones, coil springs, telescopic hydraulic shock absorbers, anti-roll bar | |||
Rear suspension | live axle with double longitudinal radius arms, coil springs, telescopic hydraulic shock absorbers | |||
Steering system | cam and roller | 4.1 turns lock to lock | ||
Brakes | front solid disks 273mm diameter with 4 piston calipers 36mm front piston diameter, 1972: front ventilated discs D273x24mm, rear solid disks 295mm diameter with 2 piston calipers and 36mm piston diameter | dual circuit without vacuum servo | ||
Dimensions | ||||
length: 4.640 m (182.7") | width: 1.740 m (68.5") | height: 1.460 m (57.5") | ||
wheelbase: 2600 mm (102.5") GL: 2620 mm (103.1") |
front track: 1350 mm (53.2") | rear track: 1350 mm (53.2") | ||
Rims - tires | 4.5" x 15", GL: 5 x 15" | 165 SR 15" | ||
Weight | 1070-1150 kg | |||
Fuel tank | 58 lt |
Spark plugs
B 20 A
Bosch W 175 T 35
B 20 B (normal driving)
Bosch W 200 T 35
B 20 B (hard driving)
Bosch W 225 T 35
B 20 E
Bosch W 225 T 35
Results in WRC
Races
Works team: Oy Volvo-Auto Ab
Season
Entry | Rally event | ||||||||||||||
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Driver Codriver |
Team | M.C | SVE Entry list |
S.R | KEN | A | GRE | RAC Entry list |
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Jens Nielsen Henning Henriksen |
30th | ||||||||||||||
Rolf Andersson Claes-Göran Andersson |
9th | ||||||||||||||
Sören Skanse Lennart Persson |
dnf | ||||||||||||||
Anders Lundberg Stig Andersson |
dnf | ||||||||||||||
Axel Ekman Annika Ekman |
dnf | ||||||||||||||
P.S.Iglebaek Terje Nygren |
dnf | ||||||||||||||
Total points () |
2 | 2 | |||||||||||||
Statistics | |||||||||||||||
Others starts/finishes | 6/2 | 1/1 | 5/1 |

Sven-Inge Neby in Swedish rally '77






Engine with Weber carburetors
Engine with SU carburetors
Drawings

Volvo 144 (4 door)
Electrical diagrams

B20A and B20B (carburetor)

B20E (injection)
page revision: 159, last edited: 26 Dec 2019 15:48