Technical specifi cations. Alfa Romeo 8C Spider
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TECHNICAL SPECIFICATIONS
ENGINE
General
Type code
Cycle
Cylinder number and position
Number of valves per cylinder
Bore and stroke
Total displacement
Compression ratio
Maximum power (EC) mm cm3 corresponding RPM
Maximum torque (EC) corresponding RPM kW
HP
RPM
Nm kgm
RPM
450
7,000
480
49
4,750
AR8C
Otto
V 8 - 90°
4
94x84.5
4,691
11.25±0.2
331
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INJECTION – IGNITION
The ignition and injection system is controlled by a single microprocessor ECU.
Injection
- Type Bosch Motronic ME7.1.1.
Ignition
- Ignition sequence: 1-8-6-2-7-3-4-5
- Spark plugs: NGK PMR8C-H.
Battery
FIAMM 12V 100Ah 850A
Electric alternator
NIPPONDENSO SC2 150A
LUBRICATION SYSTEM
The lubrication system uses a wet sump system and oil pump with the relative suction screen, incorporated in the crankcase.
CAPACITIES AND TECHNICAL SPECIFICATIONS
COOLING SYSTEM
Engine cooling is obtained by means of an antifreeze mixture circulating inside a system with radiator, centrifugal pump and expansion tank.
TRANSMISSION
Clutch
Dry double-plate clutch with servo-assisted hydraulic control.
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GEARSHIFTING
Six forward speeds and one reverse.
Gear
1 st gear
2 nd gear
3 rd gear
4 th gear
5 th gear
6 th gear
Reverse
Differential
The ratios are:
Differential reduction ratio
Gearbox ratios
3.214
2.050
1.435
1.107
0.903
0.757
3.286
4.182
BRAKES
Service and emergency brakes
The braking system is composed of carboceramic (CCM) disc brakes on all four wheels.
This application has contributed to improving all the performance parameters during braking (improved deceleration/pedal load ratio, braking distances, resistance to fading) and considerably reducing the
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The hydraulic circuits have crossed branching and are independent for the front and rear brakes. Therefore, should one of the circuits fail, emergency braking is always possible with the efficient circuit.
The vacuum brake servo and the hydraulic control unit, equipped with solenoid valves and scavenge pump, are activated in the event that the wheels lock adjusting the pressure on the calipers (ABS system).
In addition, the hydraulic control unit is equipped with a microprocessor capable of processing a braking correction (EBD system).
Finally, the braking system is equipped with an electric parking brake (EPB) that acts on the rear wheels. It is automatically engaged when the engine is turned off and it is disengaged when, with the engine running, the accelerator pedal is depressed.
It can also be manually engaged by raising the lever positioned on the central fixing plate of the centre console, see page 149.
CAPACITIES AND TECHNICAL SPECIFICATIONS
CAUTION
If you frequently drive in highperformance conditions, periodically have the efficiency of the carboceramic braking system checked at the
Authorised Service Centres of the
Manufacturer’s Network.
SUSPENSION
Front and rear
Articulated quadrilateral suspension.
STEERING
Rack and pinion hydraulic steering, with pump driven by the drive shaft and tank. Articulated steering column, with energy absorption and adjustable inclination and height.
- Steering diameter = 10.7 m
- Number of steering wheel turns = 1.3
(to the left and right)
WHEELS
Wheel rims and tyres front rear
*front
*rear
* Winter tyres
Wheel rim size
8.5”J x 20”
10.5”J x 20”
8.5”J x 20”
10.5”J x 20”
Tyre size
245/35 ZR20
285/35 ZR20
245/35 ZR20 VM+S
275/35 ZR20 VM+S
CAUTION
Alternatively, you may use winter tyres having the same dimensions as those provided with the vehicle.
CAUTION
When winter tyres are fitted, it is advisable not to exceed a speed of
220 km/h. Always observe the regulations in force in the country where you are driving and follow the instructions provided by the tyre manufacturer.
Spare wheel (Japan only)
Alloy wheel rim.
Tyre size
175/55 R18
Tyre brand
VREDESTEIN
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Snow chains
Maximum radial protrusion permitted over the tyre profile: 9 mm.
Rear tyre
285/35 ZR20
Snow chains: brand/type
Konig Supermagic
WARNING : The snow chains must be fitted only on the rear tyres. To purchase snow chains contact an
Authorised Service Centre of the Manufacturer’s Network .
PERFORMANCE
Maximum speed Km/h
292 mph
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CAUTION
When winter tyres are fitted, it is advisable not to exceed a speed of 220 km/h. Always observe the regulations in force in the country where you are driving and follow the instructions provided by the tyre manufacturer.
Accelerations with standing start (in seconds) 0-100 Km/h
4.5 sec.
0-400 m
12.9 sec.
WEIGHTS
Weights
Unladen vehicle weight (with fluids, tools and accessories)
Weight with full load (2 passengers and luggage)
1,675 kg
1,855 kg
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CAPACITIES AND TECHNICAL SPECIFICATIONS
DIMENSIONS
910 mm 2645 mm
4381 mm
826 mm
1590 mm
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1589 mm
1894 mm
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