Fiat 124 Sport Spider 1.6 group 4 (1970)
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Photo by Ljubomir Ivanovic
Donatela Tominz/Gabriela Momolo, winners of YU rally '73
Source
Source
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 |
Development level Group 4 Group 3 |
Specifications
113869 units built (sport coupe)
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Group/Class | 4 | Homologation number: 3029 | |||
Years active | 1970-1973 | Homologation start: 1/7/1970 Homologation end: 31/12/1981 |
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Engine | |||||
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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, 220 mm deck height, 91 mm (1-2 and 3-4) and 94 mm (cyl 2-3) bore spacing | cylinderhead: cross flow aluminium alloy with hemispherical combustion chambers | |||
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 | jacketed watercooled with pump, radiator, 252 mm diameter-4 blades fan and thermostat | 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) |
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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 Fiat 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
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 | ||||||||||||||
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Driver Codriver |
Team | M.C | SVE Entry list |
S.R | KEN | A | GRE | RAC Entry list |
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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
Photo by Ljubomir Ivanovic
Donatela Tominz/Gabriela Momolo, winners of YU rally '73
Source
Drawings
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page revision: 97, last edited: 26 Dec 2019 15:53