Saturday, September 18, 2010

Abarth 124 Spider Rally

1972 Spec for the Competition Cars:
Engine 132 AC4 000 Twin Cam belt driven
4 cylinder in line, 1756cc.
9.8:1 compression
84mm bore x 79.2mm stroke
8 valve head
Output 176bhp DIN @ 6000rpm (approx. -spec varied by event)
Carburation 2x Weber 44 IDF
Ignition Electronic
Gearbox 5 speed Colotti, clutch: single dry plate
Ratios 3.667, 2.1, 1.361, 1.0, 0.881
Final Drive 10/43 ratio (varied per event) Limited Slip Differential
Suspension Front: McPherson strut type, coil springs, with upper wishbone lower arm, anti roll bar & angled tie rods
Rear: fully independent McPherson strut type with trailing arms & lower radius arms
Brakes Front & Rear disc
Weight 970kg dry
Wheels/tyres 13ins x 6.5j Pirelli Tyres

1975 Spec for Competition Cars:

Engine 132 AC4 Twin Cam belt driven
4 cylinder in line, 1840cc.
10:1 compression
84mm bore x 83mm stroke
16 valve Abarth head
Output 190bhp DIN @ 5900rpm
Carburation Fuel Injection Kugelfischer (mechanical metering)
Ignition Electronic Marelli
Fuel Tank capacity 12.0 gals, electronic pump
Gearbox 5 speed ZF, clutch: single dry plate
Final Drive 10/43 ratio (varied per event) Limited Slip Differential
Suspension Front: McPherson strut type, coil springs, with upper wishbone lower arm, anti roll bar & angled tie rods
Rear: fully independent McPherson strut type with trailing arms & lower radius arms
Brakes Front: & rear disc
Weight 900kg dry
Wheels 13insx 8j Cromadora Pirelli Tyres

  1972 Specifications
124 Sport Spider 1600
124 Sport Spider 1800
124 Abarth Rally
Cylinders / cubic capacity
4 in line
4 in line
4 in line
Bore x Stroke (mm)
80 x 79.2
84 x 79.2
84 x 79.2
Compression Ratio
9.8:1
9.8:1
9.8:1
Camshaft & valve configuration
dual ohc
8-valve
dual ohc
8-valve
dual ohc
8-valve
Induction
Weber 34 DMS
Weber 34 DMS
Weber 44 IDF 20
Weber 44 IDF 21
Max Power - bhp (DIN) @ rpm
108 @6000
118 @6000
128 @6000
Volumetric output (bhp/litre DIN)
67.8
67.2
72.9
Max torque - m.kg (ft/ibs) @ rpm
14 (101.2) @4,200
15.6 (112.8) @4,000
16.2 (117.1) @5,200
Electrical power - generator
              - battery
770w
45 Ah
770w
45 Ah
770w
45 Ah
Transmission - gearbox, fwd
4 speed
5 speed option
4 speed
5 speed option
5 speed
Transmission - gear ratios fwd
3.66, 2.10, 1.36, 1.0, 0.88
Transmission - clutch
215mm single dry plate
mechanical diaphram
215mm single dry plate
mechanical diaphram
215mm single dry plate
mechanical diaphram
Transmission - differential
Crown wheel & Pinion
Crown wheel & Pinion
Crown wheel & Pinion
Top speed (mph)
112
115
118
Wheelbase (mm)
2280
2280
2280
Track - Front (mm)
           - Rear (mm)
1346
1316
1346
1316
1413
1400
Length (mm)
Width (mm)
Height (mm)
3971
1613
1250
3971
1613
1250
3914
1630
1240
Kerb Weight (kg)
960
960
938

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