Fiat 124 Abarth Rally group 4 (1973)
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Home » Rally Cars » Fiat 124 Abarth Rally
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1967: Fiat 124 Sport Spider
1970: Fiat 124 Sport Spider 1.6
1973: Fiat 124 Abarth Rally
1975: Fiat 124 Abarth Rally 16V

Specifications

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Group/Class 4/3 Homologation number: 635 and 3059
Years active 1973-1974 Homologation start: 1/1/1973 and 1/1/1974
Engine
Type Fiat Twin Cam (Lambredi), Type 2ACT, 132AC4.000, straight 4cyl, 4 stroke located front longitudinal
Capacity 1756 cc WRC: 1756 cc
Bore x Stroke (mm) 84.0 x 79.2
Compression ratio 9.8-10.5:1
Output power - torgue 165 - 175 HP / 7200 rpm
group 3: 128 HP @ 6200 rpm
16.5 kgm (162 Nm) / 5200 rpm
group 3: 16.2 kgm @ 5200 rpm
Main bearings 5 of 53.1mm diameter connecting rod length between centers 136mm, big end bearing internal diameter 50.8mm, aluminium alloy piston with 47.2 mm piston height
Materials block: cast iron cylinderhead: aluminium alloy
Cams/valves 2 overhead camshafts (DOHC), belt driven 2 valves/cyl - 8 valves total. 42.4mm inlet valve diameter, 35.8mm exhaust valve diameter. 32.5o angle between inlet valve axis and vertical, 32.5o angle between exhaust valve axis and vertical. 2 springs per inlet and exhaust valve
Aspiration natural, 2 dual Weber type 44 IDF 20 or 21 carburetors
Ignition electronic, firing order 1-3-4-2
Cooling system watercooled 7.5 lt
Lubrication system dry sump with oil cooler 4 lt
Transmission
Type rear wheel drive Colotti T132 or CIMA 5-speed gearbox
Gearbox ratios constant: 1.556/1 (28/18)
1st: 3.667/1 (33/14)
2nd: 2.100/1 (27/20)
3rd: 1.361/1 (21/24)
4th: 1.000/1
5th: 0.881/1 (17/30)
R: 3.526/1 (34/15)
constant: 1.238/1 (26/21)
1st: 2.724/1 (33/15)
2nd: 1.857/1 (27/18)
3rd: 1.351/1 (24/22)
4th: 1.000/1
5th: 0.840/1 (19/28)
R: 2.806/1 (34/15)
Diffrential ratio 4.3 (43/10), 5.375/1 (43/8), group 3: 6.14/1 (43/7) hypoid spiral bevel gears limited slip rear differential
Clutch dry single plate, 215mm diameter
Chassis-body
Type steel monocoque 124 CSA chassis with roll-cage. 2 door hardtop coupe bodyshell with extended wheel arches
Front suspension double wishbones with coil springs, telescopic gas shock absorbers and longitudinal tie rods
Rear suspension McPherson strut with trailing arms & lower transverse radius arms, coil springs, telescopic gas shock absorbers and antiroll bar
Steering system worm and roller 2.75 turns lock to lock
Brakes ventilated disks all around with 227/256mm disk diameter, front 1 piston calipers 48 mm diameter or 2 piston calipers 42/48 mm diameter, rear 1 piston caliper 34 mm diameter or 2 piston calliper 34 mm diameter dual circuit with servo
Dimensions
length: 3.915 m (154.13 in) width: 1.630 m (64.2 in) 1720 mm height: 1.240 m (48.82 in)
wheelbase: 2.280 m (89.8 in) front track: 1.413 m (55.6 in) rear track: 1.400 m (55.1 in)
Rims - tires 5.5 x 13", 5.5" - 6.5" x 14" 185/70-13
Weight 870 kg
Weight/power 5.7 kg/HP
Fuel tank 46 lt
Drag coefficient 0.45

Results in WRC

Races

Works team: FIAT

Season
Entry Rally event
Driver
Codriver
Team M.C SVE POR KEN MAR GRE POL FIN A S.R USA RAC
Entry list
TdC
Sergio Barbasio
Gino Macaluso
works gear box 5th 10th
Maurizio Verini
Angelo Torriani/ Ninni Russo
works 2nd 19th
Raffaele Pinto
Arnaldo Bernacchini
works 7th susp ens ion acci dent susp ens ion
Achim Warmbold
Jean Todt
works 1st 8th
Alcide Paganelli
Ninni Russo
works clutch head gasket stee ring oil pres sure eng ine 6th
Björn Waldegård
Hans Thorszelius
acci dent acci dent 6th
Maurizio Resemini
Carlo Superti
dnf
Håkan Lindberg
Sölve Andreasson
5th 4th 6th
Luís Netto
Manuel Coentro
Torralta Fiat 4th
Mário Figueiredo
Carlos Barata
Torralta Fiat acci dent
José Carpinteiro Albino
F. Albino
Torralta Fiat diff eren tial
Rauno Aaltonen
John Davenport
stee ring 2nd
Giulio Bisulli
Arturo Zanuccoli
4th
Fulvio Bacchelli
Francesco Rossetti
tran smis sion
'Didi'
Alain Lopes
?
Angelo Corio
Emilio Corio
dnf
Total points
()
84 4 6 7 5 16 10 3 5 27 1
Statistics
Others starts/finishes 33/15 5/1 1/1 6/1 2/1 3/2 2/1 1/1 3/1 6/4 3/2 1/0

218d37ac57333d26bb600f390d20609e--fiat-abarth-spiders.jpg Source
Marku Alen in Portugal rally 1974
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Fiat-124-Abarth-Rally Source
Group 4
fs_abarth_lp.jpg Source
Group 3
57187ia_20.jpg Source
1972_Fiat_124_Spider_CSA_Abarth_Hardtop_Vintage_Race_Rally_Car_Replica_for_Sale_Engine_resize.jpg Source

Drawings

fiat124abarthrally.jpg Source
124_abarth.jpg Source

Engine

Fiat500USA-Fiat_TwinCam.jpg Source
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