Mercedes C107 500 SLC group 2 (1979)


Table of Contents
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Specifications
1977-80, 450 SLC 5.0: 1636 units built
1980-81, 500 SLC: 1133 units built
Click here for 450 SLC 5.0 '79
Click here for 500 SLC '80
Click here for 500 SL '81
Click here for street version
Group/Class | 4/4 and 2 | Homologation number: 661, 1706 and B216 | |
Years active | 1979-1981 | Homologation start: 1/4/1979, 1/7/1980 and 1/7/1982 Homologation end: 31/12/1981 and 31/12/1986 |
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Engine | |||
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Type | Mercedes M117 E50, V8 cylinder (90°), 4 stroke | located front longitudinal | |
Capacity | 450: 5025 cc, 500: 4973 cc | WRC: 450: 5025 cc, 500: 4973 cc | |
Bore x Stroke (mm) | 450: 97.0 x 85.0, 500: 96.5 x 85.0 | ||
Compression ratio | 10.8:1 | ||
Output power - torgue | 450: 300-310, 500: 340 HP @ 6400 rpm | 43 kgm @ 4300 rpm | |
Main bearings | forged steel cross plane crankshaft with 5 main bearings | 52mm big end journal diameter | |
Materials | block: aluminium alloy with cast iron cylinder liners, 112.5mm bore spacing | cylinderhead: 2 x cross flow aluminium alloy with "wedge" combustion chambers | |
Cams/valves | 2 x 1 overhead camshafts (SOHC), duplex chain driven | 2 valves/cyl. - 16 valves total. 33mm inlet valves diameter, 29.5mm exhaust valves diameter | |
Aspiration | natural, Bosch K-jetronic mechanical multi point fuel injection | ||
Ignition | electronic, firing order 1 5 4 8 6 3 7 2 | ||
Cooling system | jacketed watercooled with pump, radiator, fan and thermostat | ||
Lubrication system | dry sump | ||
Transmission | |||
Type | rear wheel drive | Mercedes 722.0 hydraulically controlled, 3-speed torque converter automatic gearbox | |
Gearbox ratios | 1st: 2.31/1 2nd: 1.46/1 3rd: 1.00/1 R: 1.84/1 |
1980 safari and on: 1st: 3.68/1 2nd: 2.41/1 3rd: 1.44/1 4th: 1.00/1 R: 5.14/1 |
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Diffrential ratio | 2.72/1 (49/18), 3.46/1 (45/13), 3.06/1 (52/17), 3.69/1 (48/13), 4.08/1 (49/12) | hypoid spiral bevel gears limited slip rear differential | |
Clutch | torque converter | ||
Chassis-body | |||
Type | steel monocoque Mercedes W107 chassis with front suspension transverse sub-frame bridge, rear suspension V-shaped sub-frame bridge, roll-cage. 2 door hardtop coupe bodyshell with aluminium doors | ||
Front suspension | double A wishbones with oil springs, telescopic gas shock absorbers and antiroll bar | ||
Rear suspension | semi trailing arm (45o) with coil springs, telescopic gas shock absorbers and antiroll bar | ||
Steering system | hydraulic servo assistance | 12.2/1 ratio, 3.3 turns lock to lock | |
Brakes | front ventilated discs 273mm diameter with 2 piston calipers 57/60mm diameter. Rear solid discs 273mm diameter with 2 piston calipers 38/42mm diameter. 1980: rear 2 piston calipers 45mm diameter 1980: front ventilated discs 300mm diameter with 4 aluminium piston calipers. 42mm diameter Rear ventilated discs 304mm diameter with 2 aluminium piston calipers 44mm diameter |
dual circuit with vacuum servo, 1980: adjustable ratio split front to rear | |
Dimensions | |||
length: 4.750 m (160.6") | width: 1.782 m (63.0") | height: 1.330 m (52.4") | |
wheelbase: 2.815 m (94.5") | front track: 1.452 m (57.2") | rear track: 1.440 m (56.7") | |
Rims - tires | 6.5J x 14" H2, 7x15" or 11x15" | 205/70 VR 14 | |
Weight | 1350-1450 kg | ||
Fuel tank | 120 lt |
Results in WRC
Races
Works team: Daimler Benz
Group 4
Entry | Rally event | ||||||||||||||
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Driver Codriver |
Team | MC | SVE Entry list |
POR | KEN | GRE | N.Z | FIN | C.Q | S.R | TdC Entry list |
RAC Entry list |
CdI | ||
Hannu Mikkola Arne Hertz |
works | 2nd | 1st | ||||||||||||
Björn Waldegård Hans Thorszelius |
works | 6th | 2nd | ||||||||||||
Vic Preston, Jr John Lyall |
works | under guard | 4th | ||||||||||||
Andrew Cowan Klaus Kaiser |
works | 3rd | |||||||||||||
Pfuhl Leininger |
dnf | ||||||||||||||
Total points () |
48 | 14 | 34 | ||||||||||||
Statistics | |||||||||||||||
Others starts/finishes | 8/6 | 3/2 | 5/4 |
Ingvar Carlsson in rally Portugal '80

Bandama '80


Rear suspension
Front suspension
Drawings

Front suspension

Rear suspension

1. Shock absorber.
2. Sway bar links.
4. Trailing arm bushings.
9. Subframe mounts.
12. Flex disks.
14. Drive shaft center support.
17. Rear axels.
18. Differential mount (rubber).
page revision: 49, last edited: 26 Apr 2021 02:23