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| Technical Specs of This Model |
| 1. |
40/50 1919
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| General Information |
| Make |
Napier |
| Model |
40/50 |
| Production Year |
1919 |
| Country |
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| Designer |
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| Production Number |
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| Model Code |
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| Model Family |
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| Chassis and Dimensions |
| Chassis Type |
4/5S SAL |
| Number of Doors |
4 |
| Wheelbase |
3480 mm (137 in) |
| Front Track |
1422 mm (56 in) |
| Rear Track |
1422 mm (56 in) |
| Length |
4572 mm (180 in) |
| Width |
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| Height |
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| Ground Clearance |
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| Length / Wheelbase Ratio |
1,31 |
| Weight |
1880 kg (4141 lb) |
| Weight Distribution (front/rear) |
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| Fuel Capacity |
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| Aerodynamics |
| Drag Coefficient |
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| Frontal Area |
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| Cx |
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| Engine Specifications |
| Engine Manufacturer |
Napier |
| Engine Location |
Front |
| Engine Alignment |
Longitudinal |
| Engine Construction |
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| Coolant Type |
Water |
| Engine Type |
SOHC |
| Number of Cylinders and Placement |
S-6 |
| Valves per Cylinder |
2 (Total of 12 Pieces) |
| Engine Displacement |
6105 cc (372,55 cu in) |
| Bore |
101,6 mm (4 in) |
| Stroke |
127 mm (5 in) |
| Bore / Stroke Ratio |
0,8 |
| Unitary Capacity |
1017,5 cc/cylinder (62,09 cu in/cylinder) |
| Number of Main Bearings |
7 |
| Compression Ratio |
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| Fuel System Type |
1 Napier-SU carb |
| Aspiration Type |
Normal |
| Compressor Type |
- |
| Intercooler Type |
None |
| Catalytic Converter |
No |
| Maximum Engine Power |
82 HP (61,1 kW) |
| Maximum Engine Power rpm |
2000 d/d |
| Maximum Engine Torque |
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| Maximum Engine Torque rpm |
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| Engine Torque at Max. Engine Power rpm |
292 N.m (2000 d/d) |
| Power / Weight Ratio |
43,6 HP/ton (32,5 W/kg) |
| Power / Engine Displacement Ratio |
13,4 HP/litre (10 kW/litre) |
| CO2 Emissions |
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| Fuel Consumption |
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| Performance |
| 0 - 80 km/h |
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| 0 - 60 mph |
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| 0 - 100 km/h |
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| 0 - 160 km/h |
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| 80 - 120 km/h (in top gear) |
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| 0 - 400 m Acceleration |
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| 0 - 1000 m Acceleration |
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| Top Speed |
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| Gearbox and Transmission |
| Transmission Type |
4M |
| Top Gear Ratio |
1 : 1 |
| Final Drive Ratio |
3,3 : 1 |
| Drive Wheels |
RWD (Rear Wheel Drive) |
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| Handling, Suspension Geometry and Brakes |
| Steering Type |
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| Steering Turns (lock to lock) |
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| Turning Circle Diameter |
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| Suspension (front) |
LA.SE. |
| Suspension (rear) |
LA.Cant. |
| Brakes (front/rear) |
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| Brake Disc Diameter (front) |
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| Brake Disc Diameter (rear) |
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| Wheels (front) |
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| Wheels (rear) |
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| Tyres (front) |
895 x 135 |
| Tyres (rear) |
895 x 135 |
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