(1919 model)
| Marque (make) | Napier | Issued from | 1919 |
|---|---|---|---|
| Model | 40/50 | Issued until | |
| Serie | 40 | Number made | |
| Model family | Body construction | ||
| Model code | Body designation | ||
| Manufacturer | Napier | Country | UK |
| Base platform | Number of doors | 4 | |
|---|---|---|---|
| Bodywork type | sedan (saloon) | Number of seats | 5 |
| Bodywork designer | Cargo capacity (volume) | ||
| Max. cargo capacity (volume) |
| Length | 4572 mm / 180.0 in / 180.0 in | Ground clearance | |
|---|---|---|---|
| Width | Length/wheelbase ratio | 1.31 | |
| Height | Total (curb) weight | 1880 kg / 4145 lb / 4145 lb | |
| Wheelbase | 3480 mm / 137.0 in / 137.0 in | Dry weight | |
| Track front | 1422 mm / 56.0 in / 56.0 in | Weight distribution (front) | |
| Track rear | 1422 mm / 56.0 in / 56.0 in | Fuel capacity |
| Drag coefficient | Frontal Area | ||
|---|---|---|---|
| Cx |
| Engine Code | Total number of cylinders | 6 | |
|---|---|---|---|
| Engine Type | straight (inline) | Total number of valves | 12 |
| Engine Manufacturer | Napier | Valves per cylinder | 2 |
| Engine construction | Bore | 101.6 mm / 4.00 in / 4.00 in | |
| Fuel | petrol (gasoline) | Stroke | 127.0 mm / 5.00 in / 5.00 in |
| Fuel supply | Bore/Stroke ratio | 0.80 | |
| Engine Main bearings | 7 | Engine displacement | 6105 cm3 / 372.5 cu in / 372.5 cu in |
| Cam Design | SOHC (single overhead camshaft) | Unitary capacity | 1017.50 cm3/cylinder / 62.092 cu in/cylinder / 62.092 cu in/cylinder |
| Sump | Compression ratio | ||
| Aspiration | natural | Max. output power | 61.1 kW / 83.1 hp / 83.1 hp at 2000 rpm / 2000 rpm / 2000 rpm |
| Compressor type | N/A | Max. torque | at |
| Intercooler | none | Maximum rpm | |
| Coolant | water | Max. net output | 60.3 kW / 82.0 bhp / 82.0 bhp |
| Catalytic converter | no | Specific output | 13.4 kW/l / 0.299 bhp/cu in / 0.299 bhp/cu in |
| Specific torque |
| Transmission type | manual | Number of gears | 4 |
|---|---|---|---|
| Wheel drive | rear wheel drive | Top gear (drive) ratio | 1.00 |
| Final gear (drive) ratio | 3.30 |
| Acceleration 0-50 mph (80 km/h) | Top (maximal) speed | ||
|---|---|---|---|
| Acceleration 0-60 mph (96 km/h) | Power-to-weight ratio | 43.62 kW/ton / 59.31 bhp/ton / 59.31 bhp/ton | |
| Acceleration 0-100 km/h | Fuel consumption, City (urban) | ||
| Acceleration 0-100 mph (160 km/h) | Fuel consumption, Road (extra-urban) | ||
| Acceleration 80-120 km/h (50-70 mph) in top | Fuel consumption, Mixed (combined) | ||
| 0-Quarter-mile time | Fuel consumption, Euro | ||
| 0-Kilometer time | CO2 emissions |
| Engine location | front | Engine alignment | longitudinal |
|---|---|---|---|
| Steering | |||
| Turns lock-to-lock | Turning circle | ||
| Suspension front | LA.SE. | Suspension rear | LA.Cant. |
| Wheels front | Wheels rear | ||
| Tyres front | 895 x 135 | Tyres rear | 895 x 135 |
| Brakes front | Brakes rear | ||
| Brake diameter front | Brake diameter rear | ||
| Braked area |
Technical specifications and performance data of Napier 40/50
