Fiat 124 Sport Spider group 3 (1967)
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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 |
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Chassis numbers information
Specifications
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| Group/Class | 3 | Homologation number: 562 and 3007 | |||
| Years active | 1967-1970 | Homologation start: 1/4/1967 and 1/1/1970 Homologation end: 31/12/1980 |
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| Engine | |||||
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| Type | Fiat Twin Cam (Lambredi), Type 2ACT, 124AC.000, 1973: 132SC.000, straight 4cyl, 4 stroke, petrol engine | located front longitudinal | |||
| Capacity | 1438 cc, 1973: 1592 cc | WRC: 1438 cc, 1973: 1592 cc | |||
| Bore x Stroke (mm) | 80.0 x 71.5, 1973: 80.0 x 79.2 | ||||
| Compression ratio | 8.9:1, 1973: 9.8:1 | ||||
| Output power - torgue | 90 Hp @ 6500 rpm 1973: 109 HP @ 6000 rpm |
11 kgm @ 3600 rpm 1973: 14 kg @ 4000 rpm |
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| Main bearings | 5 of 50.87mm diameter | connecting rod length between centers 136mm, big end bearing internal diameter 45.58mm, 1973: 48.3mm, aluminium alloy piston 47.25 mm piston height, 1969: 44.2 or 41.95 mm piston height 1973: 46.2 mm piston height |
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| Materials | block: cast iron, 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. 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, 1 x Weber 34 DFH1 carburetor, 1968: 1 x Weber 34 DFH2 or 34 DFH3 or 34 DFH4 or 34 DHS1 carburetor 1969: 1 x Weber 34 DHS3 carburetor 1970: 1 x Weber 34 DHS10 carburetor 1973: 1 x Weber 34 DMS or Solex C34 EIES5 carburetor |
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| Ignition | electronic, firing order 1-3-4-2 | ||||
| Cooling system | jacketed watercooled with pump, radiator, 320 mm diameter-4 blades fan and thermostat | 6 lt 1970: 7.5 lt | |||
| Lubrication system | wet sump | 3.3 lt, 1973: 4 lt | |||
| Transmission | |||||
| Type | rear wheel drive | 5-speed manual gearbox | |||
| Gearbox ratios | constant: 1.556/1 (28/18) 1st: 3.422/1 (33/15) 2nd: 2.100/1 (27/20) 3rd: 1.361/1 (21/24) 4th: 1.000/1 5th: 0.912/1 (17/29) R: 3.526/1 (34/15) |
constant: 1.474/1 (28/19) 1st: 3.242/1 (33/15) 2nd: 1.989/1 (27/20) 3rd: 1.289/1 (21/24) 4th: 1.000/1 5th: 0.864/1 (17/29) R: 3.34/1 (34/15) |
1968: constant: 1.474/1 (28/19) 1st: 3.474/1 (33/14) 2nd: 1.989/1 (27/20) 3rd: 1.289/1 (21/24) 4th: 1.000/1 5th: 0.835/1 (17/30) R: 3.34/1 (34/15) |
1968: constant: 1.611/1 (29/18) 1st: 3.797/1 (33/14) 2nd: 2.175/1 (27/20) 3rd: 1.410/1 (21/24) 4th: 1.000/1 5th: 0.913/1 (17/30) R: 3.652/1 (34/15) |
1969: constant: 1.474/1 (28/19) 1st: 3.242/1 (33/15) 2nd: 1.825/1 (26/21) 3rd: 1.289/1 (21/24) 4th: 1.000/1 5th: 0.835/1 (17/30) R: 3.34/1 (34/15) |
| Diffrential ratio | 4.10/1 (41/10),4.30/1 (43/10), 4.444/1 (40/9), 4.777/1 (43/9), 5.375/1 (43/8), 6.14/1 (43/7) | hypoid spiral bevel gears limited slip rear differential | |||
| Clutch | dry single plate, 200mm diameter | ||||
| Chassis-body | |||||
| Type | steel monocoque Fiat 124 AS chassis with roll-cage. 1969: 124 BS chassis, 1973: 124 CS chassis. 2 door open top bodyshell. 1968: hardtop | ||||
| Front suspension | double wishbones with coil springs, telescopic shock absorbers and antiroll bar | ||||
| Rear suspension | live axle with lower radius arms, coil springs, telescopic shock absorbers | ||||
| Steering system | worm and roller | 2.75 turns lock to lock, 1969: 3.25 turns lock to lock | |||
| Brakes | ventilated disks all around with 227mm disk diameter, front 1 piston caliper 48 mm diameter, rear 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", 1968: 6J x 13" | 145/80 SR 13", 165 SR 13", 175/70 SR 14" | |||
| Weight | 860 kg | ||||
| Fuel tank | 45 lt | ||||
| Drag coefficient | 0.45 | ||||
| 1970: constant: 1.706/1 (29/17) 1st: 3.75/1 (33/15) 2nd: 2.30/1 (27/20) 3rd: 1.49/1 (21/24) 4th: 1.000/1 R: 3.87/1 (34/15) |
1971: 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) |
1973: 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) |
Results in WSCC
Season
Group 3 classification is noted in brackets
Group 3 classification is noted in brackets
| Car entry, chassis number | Car number/ result | ||||||||||||||||
| Dayt | Sebring | Monza | Spa | Targa Florio | Nurb | Le Man | Hock | Mugelo | Brands Hatch | CdE | Zeltweg | Ollon | Nurb | ||||
| Team | 24h | 12h | 1000km | 1000km | 720km | 1000km | 24h | 304km | 529km | 6h | 300km | 500km | Hill climb | 500km | |||
| Sergio Bettoja | #24, 10th (3rd) | ||||||||||||||||
| Nord-Ovest | #26, 17th (11th) | ||||||||||||||||
| Pegaso | #32, 20th (10th) | ||||||||||||||||
| Raffaele Restivo/ Francesco Jemma | #116, dnf | ||||||||||||||||
| Giuseppe Ceccato/ Franco Pianezzola | #119, 31st (14th) | ||||||||||||||||
| Total points 1 |
1 | ||||||||||||||||
| Statistics | |||||||||||||||||
| Works Starts/finishes 5/4 | 3/3 | 2/1 | |||||||||||||||
| Driver | Team entries and car number | ||||||||||||||||
| Sergio Bettoja | |||||||||||||||||
| Raffaele Restivo | 24 | ||||||||||||||||
| "The Tortoise" | 24 | ||||||||||||||||
| Nord-Ovest | |||||||||||||||||
| Francesco Cosentino | 26 | ||||||||||||||||
| Walfrido Orecchioni | 26 | ||||||||||||||||
| Pegaso | |||||||||||||||||
| "Harka" | 32 | ||||||||||||||||
| "M. P." | 32 | ||||||||||||||||
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page revision: 69, last edited: 27 Aug 2022 04:36