Fiat 124 Sport Spider 1.6 group 4 (1970)
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Home » Rally Cars » Fiat 124 Sport Spider 1.6
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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
Development level
Group 4
Group 3

Specifications

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Group/Class 4 Homologation number: 3029
Years active 1970-1973 Homologation start: 1/7/1970
Homologation end: 31/12/1981
Engine
Type Fiat Twin Cam (Lambredi) Type 2ACT, 125BC.000, 1973: 132SC.000, straight 4cyl, 4 stroke, petrol engine located front longitudinal
Capacity 1608 cc, 1973: 1756 cc WRC: 1608 cc, 1973: 1756 cc
Bore x Stroke (mm) 80.0 x 80.0, 1973: 84.0 x 79.2
Compression ratio 9.8:1 (10.5:1)
Output power - torgue 109 HP @ 6400 rpm, 150 HP @ 7200 rpm 14 kgm @ 3800 rpm, 165 Nm @ 4000 rpm
Main bearings 5 of 50.87mm diameter connecting rod length between centers 136mm, big end bearing internal diameter 48.3mm, aluminium alloy piston 47.2/43.75 mm piston height
Materials block: cast iron cylinderhead: aluminium alloy
Cams/valves 2 overhead camshafts (DOHC), belt driven 2 valves/cyl - 8 valves total. 41.4mm inlet valve diameter, 36mm exhaust valve diameter. 45o angle between inlet valve axis and vertical, 45o angle between exhaust valve axis and vertical. 2 springs per inlet and exhaust valve
Aspiration natural, 2 x Weber 40 IDF10 or 40 IDF11 or Solex C34 EIE5 or C40 PII6 carburetors
Ignition electronic, firing order 1-3-4-2
Cooling system watercooled 7.5 lt
Lubrication system wet sump 3.5 lt, 1973: 4 lt
Transmission
Type rear wheel drive 5-speed manual 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 4.30/1 (43/10), 5.375/1 (43/8) hypoid spiral bevel gears limited slip rear differential
Clutch dry single plate, 200mm diameter
Chassis-body
Type steel monocoque 124 BS1 chassis with roll-cage. 2 door hardtop bodyshell
Front suspension double wishbones with coil springs, telescopic shock absorbers and antiroll bar
Rear suspension McPherson strut with trailing arms & lower radius arms, coil springs, telescopic gas shock absorbers and antiroll bar
Steering system worm and roller 3.25 turns lock to lock
Brakes front solid disks with 227/246mm disk diameter and 1 piston caliper 48 mm diameter, rear solid disk 227/230 mm diameter with 1 piston caliper 34 mm diameter dual circuit with servo
Dimensions
length: 3.971 m (156.34 in) width: 1.613 m (63.5 in) height: 1.250 m (49.21 in)
wheelbase: 2.280 m (89.8 in) front track: 1.346 m (53.0 in) rear track: 1.316m (51.8 in)
Rims - tires 5" x 13" 165 SR 13", 175/70 SR 14"
Weight 900 kg
Fuel tank 45 lt
Drag coefficient 0.45

Results in WSCC

Season
Group 6
Car entry, chassis number Car number/ result
Dayt Sebring Brands Hatch Monza Targa Florio Spa Nurb Le Man Watkins Glen Zeltweg
Team 24h 12h 1000km 1000km 1000km 1000km 24h 6h 1000km
Etna #52, disqu alified
Statistics
Starts/finishes 1/0 1/0
Driver Team entries and car number
Etna
"Peter von Serzawa" 52
Santo Scigliano 52

Results in WRC

Races

Works team: FIAT

Season
Entry Rally event
Driver
Codriver
Team M.C SVE
Entry list
S.R KEN A GRE RAC
entry list
Fulvio Rubbieri
Franco Cavriani
19th*
Alcide Paganelli
Ninni Russo
Scuderia Tregazzelle 21st* 9th acci dent acci dent acci dent
Luciano Trombotto
Francesco Bossola
28th* axle* 13th
Christian Ratazzi
Fassati
dnf* dnf*
Total points
()
2 2
Statistics
Others starts/finishes 11/5 4/3 3/1 2/1 1/0 1/0

*Group 3 entries


YU-73-5.jpg Photo by Ljubomir Ivanovic
Donatela Tominz/Gabriela Momolo, winners of YU rally '73
4637127767_4c06d728ee_o.jpg Source

Drawings

FIAT124BS1.gif Source
FIAT124SportSpider1969-1982B_800.jpg Source
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