Fiat 124 Abarth Rally group 4 (1973)
gr.jpg
gb.jpg
Home » Rally Cars » Fiat 124 Abarth Rally
260px-Cambiaghi_sanfront_rally_delle_regioni_1975.jpg Source Development chain
1967: Fiat 124 Sport Spider
1970: Fiat 124 Sport Spider 1.6
1973: Fiat 124 Abarth Rally
1975: Fiat 124 Abarth Rally 16V

Specifications

1013 units built
Click here
Fiat twin cam here and here and here

Group/Class 4/3 Homologation number: 635 and 3059
Years active 1973 Homologation start: 1/1/1973 and 1/1/1974
Homologation end: 1/1/1974 and 31/12/1979
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 forged steel crankshaft with 5 main bearings 53mm diameter, and 50.8mm big end journal diameter connecting rod length between centers 136mm, big end bearing tunnel diameter 54mm, aluminium alloy piston with 47.2 mm compression height
Materials block: cast iron, 91 mm (1-2 and 3-4) and 94 mm (cyl 2-3) bore spacing, 220 mm deck height cylinderhead: cross flow aluminium alloy with hemispherical combustion chambers
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 x Weber 44 IDF 20 or 21 carburetors
Ignition Marelli electronic ignition, firing order 1-3-4-2
Cooling system jacketed watercooled with pump, radiator, 252 mm diameter-4 blades fan and thermostat 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), 6.14/1 (43/7) hypoid spiral bevel gears limited slip rear differential
Clutch dry single plate, 215mm diameter, group 4: dry double plate 187 mm disc diameter
Chassis-body
Type steel monocoque Fiat 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 (no servo) 2.75 turns lock to lock
Brakes solid disks all around with 227mm disk diameter, front 1 piston caliper 48 mm diameter, rear 1 piston caliper 34 mm diameter. group 4: Solid disks all around with 256mm disk diameter, front 2 piston calipers 42 mm diameter, rear 2 piston calipers 34 mm diameter. Front ventilated discs 256 mm disc diameter with 2 piston calipers 48 mm piston diameter dual circuit with servo
Dimensions
length: 3.915 m (154.13 in) width: 1.630 m (64.2 in), group 4: +100 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
Raffaele Pinto
Arnaldo Bernacchini
works 7th susp ens ion acci dent susp ens ion
Alcide Paganelli
Ninni Russo
works clutch head gasket stee ring oil pres sure eng ine 6th
Sergio Barbasio
Gino Macaluso
works gear box 5th 10th
Björn Waldegård
Hans Thorszelius
works acci dent acci dent 6th
Håkan Lindberg
Sölve Andreasson
works 5th 4th 6th
Rauno Aaltonen
John Davenport
works stee ring 2nd
Achim Warmbold
Jean Todt
works 1st 8th
Maurizio Verini
Angelo Torriani/ Ninni Russo
works 2nd 19th
Giulio Bisulli
Arturo Zanuccoli
works 4th
Maurizio Resemini
Carlo Superti
dnf
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
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
fiat_124_abarth_rallye_large_37333.jpg Source
sun-star-fiat-124-abarth-rally-sanremo-12-1973.jpg Source
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

Engine

Fiat500USA-Fiat_TwinCam.jpg Source
Unless otherwise stated, the content of this page is licensed under Creative Commons Attribution-ShareAlike 3.0 License