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THE GTV/SPIDER SPECIFICATIONS: |
The GTV/Spider chassis
When the current GTV/Spider project began, the instruction’s of Paulo
Cantraella, Chief Executive Officer, Fiat SpA. were plain and simple –
No compromise, especially in the area of roadholding, handling and responsiveness – the latest
GTV/Spider had to be magnifico, nothing less was acceptable.
As a result the GTV/Spider boasts one of the most sophisticated and radical suspension systems of any car in the world.
The front suspension utilises a fairly conventional set-up that comprises MacPherson struts, off set coil springs, lower wishbones and an anti-roll bar. But it is at the rear that Alfa’s engineers have established the unit that accounts for the car’s limpet-like grip on the road.
The independent, multiple arm rear suspension comprises quadrilateral geometry with an upper triangle, double lower arms, coil springs and anti-roll bar secured to a light alloy subframe which is, in turn mounted onto the vehicle’s monocoque body.
The design of this geometry, and the fine tuning of the suspension bushes, is such that in the initial stages of a turn, the centrifugal forces create a small ‘rear wheel steer’ effect in the opposite direction to the way the front wheels are being pointed. Then, as the centrifugal forces build up through the corner, the rear wheels start steering in the same direction as the front wheels.
The result is a more positive ‘attack’ into the first stages of cornering and increased stability in the later stages.
THE SPECIFICATIONS
| |
2.0 T.SPARK 16V |
3.0 V6 24V |
| No. of
cylinders, arrangement |
4 in line, front transverse |
6 in V 60° |
| Capacity
(cc) |
1970 |
2959 |
| Bore x stroke
(mm) |
83 x 91 |
93 x 72,6 |
| Compression
ratio |
10 : 1 |
10 : 1 |
Max. power
output bhp-EC (kW-EC)
at rpm |
155 (114) 6200 |
220 (162) 6300 |
Peak torque kgm-EC (Nm-EC)
at rpm |
19 (186)
4000 |
27.5 (270)
5000 |
| Timing gear |
DOHC with electrohydraulic variable valve timing on the intake side
camshaft, driven by the control unit |
DOHC for each bank |
| Fuel
feed |
Bosch Motronic M 2.10.3 Multipoint electronic injection |
Bosch Motronic M 3.7.1 Multipoint electronic injection
with electronic throttle valve |
| ELECTRICAL EQUIPMENT (12 V) |
|
|
| Battery:
capacity (Ah) |
70 |
70 |
| Generator
(A) |
100 |
120 |
| TRANSMISSION |
|
|
| 1st |
3.545 :
1 |
3.8 :
1 |
| 2nd |
2.238 :
1 |
2.235 :
1 |
| 3rd |
1.52 :
1 |
1.52 :
1 |
| 4th |
1.156 :
1 |
1.156 :
1 |
| 5th |
0.946 :
1 |
0.914 :
1 |
| Reverse |
3.909 :
1 |
3.545 :
1 |
| Final
drive |
3.562 : 1
(16/57) |
3.353 : 1
(17/57) |
| TYRES |
|
|
| |
205/50 R16 |
205/50 R16 |
| STEERING |
|
|
| System |
rack and pinion with power steering |
rack and pinion with power steering |
| Turning
circle between kerbs (m) |
11.2 |
11.4 |
| SUSPENSION |
|
| Front |
independent, MacPherson type, with lower wishbones and
anti-roll bar |
| Rear |
independent, quadrilateral with upper
triangle, twin
lower links, false steer, coil springs, hydraulic dampers and anti-roll
bar |
| BRAKING
SYSTEM |
|
|
| |
Discs front
and rear, with floating calipers, vacuum servo. Pedal control
with twin-line diagonally linked hydraulic circuit; pressure regulating
valve on wheels and anti-lock braking (ABS standard) |
Discs
with fixed calipers at front and floating calipers at rear with vacuum
servo. Pedal control with twin-line diagonally linked hydraulic
circuit; pressure regulating valve on wheels and anti-lock braking (ABS
standard) |
| Front (mm)
ventilated |
284 |
305 |
| Rear
(mm) |
240 |
240 |
| BODYWORK – DIMENSIONS |
|
|
| No. of
doors |
2 |
2 |
| Length/width
(mm) |
4285/1780 |
4285/1780 |
| Height
(mm) |
1318 |
1318 |
| Wheelbase (mm) |
2540 |
2540 |
| Front/rear track (mm) |
1499/1487 |
1508/1530 |
| Luggage
compartment (dm3) |
150 |
150 |
| SUPPLIES – WEIGHTS |
|
|
| Fuel tank (litres) |
70 |
70 |
| Kerb weight
DIN (kg) |
1370 |
1415 |
| PERFORMANCE – CONSUMPTION |
|
|
| Top speed
(km/h) |
215 |
240+ |
| Acceleration 0-100 km/h (secs) |
8.4 |
6.7 |
| Consumption
(l/100 km) |
| at 90 kph |
6.2 |
7.9 |
| at 120 kph |
7.8 |
9.8 |
| Urban cycle |
10.4 |
14.6 |
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