Citroen AX Sport group A (1988)
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citroen-ax-sport.jpg Source Development level
Group A
Group N
Production

Specifications

Group/Class Α/5 Homologation number: A 5347
Years active 1988 - 1991 Homologation start: 1/1/1988
Engine
Type PSA TU2 A, straight 4cyl, 4 stroke, petrol engine located front transverse with 6o front inclination
Capacity 1294 cc WRC: 1294 cc
Bore x Stroke (mm) 75.0 x 73.2
Compression ratio 11.3:1
12.0:1
Output power - torgue 127 HP / 7800 rpm
130 HP / 7500 rpm
13.7 - 14.3 kgm (140 Nm) / 4000 rpm
Main bearings 5 of 50mm diameter connecting rod length between centers 112.3mm, big end internal diameter 48.6mm
Materials block: aluminium alloy, 187.4mm height cylinderhead: aluminium alloy 111.1mm height
Cams/valves 1 overhead camshaft (SOHC) belt driven 2 valves/1cyl. - 8 valves total. 39.5mm inlet valve diameter, 31.4mm exhaust valve diameter. 33o angle between valves axis, symmetrical to the vertical direction. 2 coil springs per valve
Aspiration natural, 2 x Solex 40 ADDHE dual barrel carburetors. 1989+: 2 x Weber DCOM 40 dual barrel carburetors
Ignition electronic, firing order 1-3-4-2 with Eyquem FC82LS-2 twin electrode spark plugs
Cooling system watercooled 4.8 lt
Lubrication system wet sump 3.5 lt
Transmission
Type front wheel drive 5 speed MA5 manual gearbox. 1991+, 6 speed manual gearbox
Gearbox ratios 1st: 3.416/1 (41/12)
2nd: 1.950/1 (39/20)
3rd: 1.357/1 (38/28)
4th: 1.054/1 (39/37)
5th: 0.854/1 (35/41)
R: 3.583/1 (43/12)
1st: 3.416/1 (41/12)
2nd: 2.466/1 (37/15)
3rd: 1.826/1 (42/23)
4th: 1.500/1 (39/26)
5th: 1.321/1 (37/28)
R: 3.583/1 (43/12)
1991+, 1st: 3.416/1 (41/12)
2nd: 2.357/1 (33/14)
3rd: 1.800/1 (36/20)
4th: 1.466/1 (44/30)
5th: 1.275/1 (37/29)
R: 3.583/1 (43/12)
1991+, 1st: 2.636/1 (29/11)
2nd: 2.083/1 (25/12)
3rd: 1.666/1 (25/15)
4th: 1.350/1 (27/20)
5th: 1.150/1 (23/20)
6th: 1.043/1 (24/23)
R: 3.583/1 (43/12)
Diffrential ratio 4.284/1 (60/14), 4.769/1 (62/13), 4.063/1 (65/16), 3.938/1 (63/16), 3.765/1 (64/17), 3.444/1 (62/18).
1991+: 4.923/1 (64/13), 5.667/1 (68/12), 5.583/1 (67/12), 5.231/1 (68/13), 5.083/1 (61/12), 4.917/1 (59/12), 4.786/1 (67/14), 4.750/0 (57/12), 4.583/1 (57/12), 4.467/1 (67/15).
1992+: 5.500/1 (66/12), 5.417/1 (65/12), 5.385/1 (70/13), 5.308/1 (69/13)
helical gears 40% limited slip front differential
Clutch dry, single disk 181.5mm diameter
Chassis
Type steel monocoque chassis with roll-cage. Front and rear steel subframes. 3 door steel hatchback bodyshell with plastic wheel fenders extensions, plastic rear top spoiler and plastic bumpers
Front suspension Mac pherson strut with lower L wishbone, coil springs, telescopic gas shock absorbers and 21mm diameter anti-roll bar
Rear suspension trailing arm with 19-21mm diameter torsion bars, telescopic gas shock absorbers and 19/25mm diameter anti-roll bar
Steering system rack and pinion 2.25 turns lock to lock. 18.8/1, 16.4/1, 14.6/1
Brakes front solid disks 238/258mm diameter with 1 aluminium piston caliper, or ventilated disks 247/260/278mm diameter with 4/1 aluminium piston calipers. Rear drums 165mm diameter, or solid disks 220/224/248mm diameter with 1/2 aluminium piston calipers.
1992+: front ventilated disks 304mm diameter with 4 aluminium piston calipers, rear solid disks 266mm diameter with 2 aluminium piston calipers
dual circuit with servo, adjustable ratio split front to rear
Dimensions
length: 3.495 m (137.6 in) width: 1.600 m (63.0 in) height: 1.340m (52.8 in)
wheelbase: 2.285 m (90.0 in) front track: 1.420 m (55.9 in) rear track: 1.340 m (52.8 in)
Rims - tires 5.5" x 13 - 14" 175/60R 13, 165/70R 13
Weight 815 kg front 63.4% - rear 36.6%
Weight/power 6.3 kg/HP
Fuel tank 45 lt
Drag coefficient 0.33

Results in WRC

Races

Works team: Citroën Competition

Season

A/5 classification noted in brackets
Entry Rally event
Driver
Codriver
Team M.C
Entry list
SVE
Entry list
POR KEN TdC GRE Oly (N.Z) ARG FIN (CdI) S.R RAC
Maurice Chomat
Gilles Thimonier
works 12th (1st) 30th (2nd) 12th (2nd)
Dany Montagne
Jean Bourgoin
works 30th (2nd) 19th (1st) dnf 22nd (2nd) 52nd (7th)
Denise Jacques
Jocelyn Muller
works 75th (7th) 27th (2nd) acci dent 27th (4th) 79th (17th)
Rufino Fontes
Waldemar Guimarães
works trans mission
Carole Vergnaud
Marie-Claude Jouan
works acci dent acci dent 41th (5th)
Laurent Poggi
Jean-Paul Chiaroni
works 11th (1st)
Massimo Ercolani
Gilles Thimonier
works 18th (1st)
Terry Kaby
Kevin Gormley
works 32nd (4th)
Jean-Michel Hupfert
Jean-Paul Poncet
37th (3rd)
Jean-Jacques Fournier
Jean-Luc Fustier
54th (4th)
Roddier dnf
Grandvuinet dnf
Arne Garvik
Berit Tanbjörn
?
Pierre Detonils
Richard Fascina
?
Regis Achard
Jean-Pierre Coyret
?
Paul Mariani
Louis Mariani
27th (4th)
Franck Bondrille
Lionel Smerdjean
37th (5th)
Bernard Maurel
Chantal Morgan
40th (6th)
Raymond Serge
Franck Rocchetti
dnf
Eric Bayol
Tardieu
dnf
Carole Boniface
Verne
dnf
Bernard Rippert
Sylvie Laborne
69th (8th)
Jack Bouzige
Maïté Patoux
dnf
Jean-Marc Dubois
Robert Moynier
acci dent
Peter Littler
Andy Carre
stee ring
Statistics
Starts/finishes 37/21 7/5 4/1 4/2 10/5 2/1 5/3 5/4

prev135.jpg Source
fc82ls-2.jpg Source

Article from 4T 264, 9/1992

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Drawings

citroen-ax-4.gif Source

Solex 40 ADDHE carburetor

40ADDHEalfa.gif Source

Brakes

DSK584.jpg Source
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