Citroen DS23 group 2 (1973)
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Home » Rally Cars » Citroen DS23
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1970: Citroen DS21
1973: Citroen DS23
1974: Citroen CX2200
1977: Citroen CX2400 GTi

DS 23 Serie FE (carburetor)
DS 23 Serie FG (injection)

Specifications

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Click here for street Electronic Fuel Injection version
Click here for street carburetor version

Group/Class 2 Homologation number: 1644, 5512 and 1645, 5511
Years active 1973-1975 Homologation start: group 2: 1/1/1973, group 1: 1/4/1973
Homologation end: group 2: 1/4/1973, group 1: 31/12/1979
Engine
Type Citroen DX4 (with carburetor), or DX5 (with injection), straight 4cyl, 4 stroke located front longitudinal behind front axle
Capacity 2347 cc WRC: 2347 cc
Bore x Stroke (mm) 93.5 x 85.5
Compression ratio 8.75:1
Output power - torgue 115 HP @ 5500 rpm
inj: 130 HP @ 5250 rpm
18.7 kgm @ 3500 rpm
inj: 19.9 kgm @ 2500 rpm
Main bearings forged steel crankshaft with 5 main bearings 64 mm diameter, big end bearings journal diameter 53.5mm steel connecting rod length between centers 160 mm, big end bearing tunnel diameter 57.7mm, aluminium alloy piston with 64.65 mm compression height
Materials block: cast iron cylinderhead: cross flow aluminium alloy with hemispherical combustion chambers
Cams/valves overhead valves with pushrods and rockers (OHV), chain driven side camshaft 2 valves/cyl. - 8 valves total. 49 mm inlet valve diameter, 39 mm exhaust valve diameter. 2 coil springs per valve
Aspiration natural, DX4: x Weber 28/36 DMA4 or Weber 28/36 DM2 carburetor
DX5: Bosch D-Jetronic multipoint fuel injection
Ignition electronic, firing order 1-3-4-2
Cooling system jacketed watercooled with pump, radiator, 306 mm diameter-8 blades (or 260 mm diameter-11 blades) fan and thermostat 13 lt
Lubrication system wet sump 5 lt
Transmission
Type front wheel drive Citroen, 4 or 5 speed manual gearbox
Gearbox ratios 1st: 3.25/1 (39/12)
2nd: 1.941/1 (33/17)
3rd: 1.321/1 (37/28)
4th: 0.969/1 (32/33)
5th: 0.784/1 (29/37) or 0.757/1 (28/37)
R: 3.154/1 (41/22x22/13)
1st: 3.25/1 (39/12)
2nd: 1.833/1 (33/18)
3rd: 1.207/1 (35/29) or 1.133/1 (34/30)
4th: 0.852/1 (23/27) or 0.786/1 (22/28)
R: 3.154/1 (41/22x22/13)
Diffrential ratio 4.857/1 (34/7), 4.375/1 (35/8) helical gears limited slip front differential
Clutch dry single disc, 229 mm disc diameter
Chassis-body
Type steel monocoque mounted on twin longeron main frame FE or FG chassis with roll-cage. 4 door saloon steel bodyshell with steel bumbers
Front suspension upper and lower transverse arms with anti-dive geometry, hydropneumatic spring/damper units, anti-roll bar
Rear suspension trailing arms, hydropneumatic spring/damper units, anti-roll bar
Steering system rack and pinion with hydraulic servo assistance 3.25 turns lock to lock
Brakes front solid disks 300mm diameter with 2 piston calipers and 60 mm piston diameter, rear drums 255 mm diameter and 1 double piston caliper and 18mm piston diameter dual circuit with servo, adjustable ratio split front to rear
Dimensions
length: 4.874 m (191.9") width: 1.803 m (71.0") height: 1.470 m (57.9")
wheelbase: 3.125 m (123.0") front track: 1.516 m (59.7) rear track: 1.316 m (51.8)
Rims - tires steel rims 5" or 5.5" x 15" Michelin XAS 180 x 380 or 185-HR15
Weight 1260-1280 kg front/rear distribution 65%-35%
Fuel tank 65 lt
Drag coefficient 0.38

Results in WRC

Races

Works team: Citroen S.A.

Season
Entry Rally event
Driver
Codriver
Team M.C SVE POR KEN MAR GRE POL FIN A S.R USA RAC
Entry list
TdC
Bob Neyret
Jacques Terramorsi
works 2nd
Raymond Ponnelle
Pierre de Serpos
works 4th*
Jean Deschazeaux
Jean Plassard
works 8th
Richard Bochnicek
Sepp-Dieter Kernmayer
3rd* 6th oil leak
Total points
()
32 27 5
Statistics
Others starts/finishes 5/4 4/4 1/0

*Group 1 entries


Drawings

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