Opel Kadett C GT/E group 2 (1975)
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Home » Rally Cars » Opel Kadett C GT/E
opel-kadett-gte-03.jpg Source Development chain
1967: Opel Kadett B Coupe Rallye
1975: Opel Kadett C GT/E
1978: Opel Kadett C GT/E 2.0
1982: Opel Kadett D GT/E
1984: Opel Kadett E 1.8 GSi
1987: Opel Kadett E 2.0 GSi
1988: Opel Kadett E GSi 16V
1992: Opel Astra F GSI 16V
Development level
Group 4
Group 2
Group 1

History site
In rally: see video

Specifications

Opel Kadett GT/E - Black/yellow - 8660 produced between 1975 and 1977
Opel Kadett GT/E 2.0 - Yellow/white - 2254 produced between 1977 and 1979
Group/Class 2 Homologation number: 5624
Years active 1975 - 1977 Homologation start: 1/2/1976
Engine
Type Opel CIH 19E, straight 4cyl, 4 stroke located front longitudinal
Capacity 1897 cc WRC: 1897 cc
Bore x Stroke (mm) 93.0 x 69.8
Compression ratio 11.4:1
Output power - torgue 160-180 HP 240 Nm @ 5800 rpm
Main bearings 5 of 58mm diameter connecting rod big end bearing diameter 55mm
Materials block: cast iron cylinderhead: cast iron
Cams/valves single overhead camshaft (SOHC), chain driven. Operation with rocker arms and cam followers 2 valves/cyl. - 8 valves total. 42mm inlet valve diameter, 34mm exhaust valve diameter. 0o angle between valves and vertical
Aspiration natural, 2 x Weber 45 DOCE carburetors or Bosch jetronic multipoint electronic fuel injection
Ignition electronic, firing order 1-3-4-2
Cooling system watercooled 7 lt
Lubrication system wet sump 4.1 lt
Transmission
Type rear wheel drive Opel 4 speed, or ZF S5-18/3 5 speed gearbox (see here)
Gearbox ratios constant: 1.167/1 (21/18)
1st: 2.873/1 (32/13)
2nd: 1.751/1 (24/16)
3rd: 1.290/1 (21/19)
4th: 1.00/1 (-)
R: 2.69/1
constant: 1.259/1 (34/27)
1st: 3.873/1 (40/13)
2nd: 2.398/1 (40/21)
3rd: 1.727/1 (35/25)
4th: 1.259/1 (30/30)
5th: 1.000/1 (-)
R: 3.67/1
constant: 1.438/1 (23/16)
1st: 3.426/1 (31/13)
2nd: 2.156/1 (24/16)
3rd: 1.366/1 (19/20)
4th: 1.00/1 (-)
R: 2.69/1
Diffrential ratio 3.667/1 (33/9),3.182/1 (35/11), 4.750/1 (38/8), 5.286/1 (37/7) hypoid spiral bevel gears limited slip rear differential
Clutch dry single disk, 204mm diameter
Chassis-body
Type steel monocoque chassis of GM T platform with roll-cage. 2 door coupe/liftback steel bodyshell with steel bumbers
Front suspension double unequal wishbones with coil springs, telescopic gas shock absorbers and anti roll bar
Rear suspension live axle with 2 longitudinal radius arms, panhard rod, coil springs and telescopic gas shock absorbers
Steering system rack and pinion
Brakes front solid disks 244mm diameter with 2 piston calipers, or ventilated disks 238mm diameter with 2/4 piston calipers. Rear drums 230mm diameter, or ventilated disks 238mm diameter with 2 piston calipers dual circuit with servo, adjustable ratio split front to rear
Dimensions
length: 4.124 m (162.4 in) width: 1.594 m (62.8 in) height: 1.355 m (52.6 in)
wheelbase: 2.395 m (94.3 in) front track: 1.318 m (51.9 in) rear track: 1.314 m (51.7 in)
Rims - tires 5.5" - 6" - 8 "x 13" 175/70 HR 13 (195/60 R 15)
Weight 900 kg
Weight/power 5.6 kg/HP
Fuel tank 50 - 100 lt

Results in WSCC

Season
Car entry Car number/ result
Daytona Mugello Silver stone Nurb Watkins Glen Mosport Brands Hatch Hocke nheim Valle lunga
Team 24h 6h 6h 1000km 6h 6h 6h 6h 6h
Valvoline Racing #92, dns
Karl-Friedrich Hunold/ Werner Muschak/ Hermann Molitor #96, dnt qualify
Statistics
Works Starts/finishes 2/0 2/0
Driver Team entries and car number
Valvoline Racing
Josef Wilhelmy 92
Udo Piesack 92

Results in WRC

Works team: Opel Euro Händler

Season
Entry Rally event
Driver
Codriver
Team M.C SVE KEN GRE MAR POR FIN S.R TdC RAC
Walter Röhrl
Jochen Berger
works prop shaft trans mission
Rauno Aaltonen
Claes Billstam
works gear box
Anders Kulläng
Claes-Göran Andersson
works piston
Tony Pond
David Richards
Dealer Team Opel 4th
Total points
()
7 7
Statistics
Works starts/finishes 4/0 1/0 3/0
Others starts/finishes 1/1 1/1

Opel-Kadett-C-GT-E-Safari-474x316-1f9925400f5150a4.jpg Source
Safari '76
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opelkadettcrallye01-15.jpg Source

Drawings

1976_Opel_Kadett_(_C_)_GT-E_rallye_car_005_5846.jpg Source
opel-kadett-c-gte-rallye-1979.png Source

Gearbox

ZF%20S5-18_3.JPG Source
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