The National Six Sedan is a 4 door saloon (sedan)-bodied car styled by HF Holbrook with a front located engine driving through the rear wheels.
The National Six Sedan is one of the Six Thirty One range of cars from National.
The power is produced by a naturally aspirated engine of 2.9 litre capacity. This unit features side valve valve gear, 6 cylinder layout, and 2 valves per cylinder. It has an output of 35 bhp (35.5 PS/26.1 kW) of power.
A 3 speed manual gearbox supplies the power to the wheels.
Full specs
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| bodywork | |||
|---|---|---|---|
| Body type | 4/5 seater sedan/saloon | ||
| Number of doors | 4 | ||
| Designer | HF Holbrook | ||
| dimensions & weights | |||
| Wheelbase | 2845 mm | 112 inches | |
| Track/tread (front) | |||
| Track/tread (rear) | |||
| Length | |||
| Width | |||
| Height | |||
| Ground clearance | |||
| length:wheelbase ratio | |||
| Kerb weight | |||
| Weight distribution | |||
| fuel tank capacity | 45.5 litres | 10 [12] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | National | ||
| Engine code | |||
| Cylinders | Straight 6 | ||
| Capacity | 2.9 litre 2870 cc (175.138 cu in) |
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| Bore × Stroke | 73 × 114.3 mm
2.87 × 4.5 in |
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| Bore/stroke ratio | 0.64 | ||
| Valve gear | side valve (SV)
2 valves per cylinder 12 valves in total |
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| maximum power output | 35.5 PS (35 bhp) (26.1 kW) |
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| maximum torque | |||
| Specific output | 9.1 kW/litre 12.4 ps/litre 12.2 bhp/litre 0.2 bhp/cu in |
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| Engine construction | |||
| Lubrication | |||
| compression ratio | |||
| Fuel system | |||
| bmep (brake mean effective pressure) | |||
| Maximum RPM | |||
| crankshaft bearings | |||
| Engine coolant | Water | ||
| Unitary capacity | 478.33 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | |||
| performance | |||
| Acceleration 0-80km/h (50mph) | |||
| Acceleration 0-60mph | |||
| Acceleration 0-100km/h | |||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | |||
| Standing kilometre | |||
| Maximum speed | |||
| Power-to-weight ratio | |||
| Weight-to-power ratio | |||
| fuel consumption | |||
| Fuel consumption | |||
| universal fuel consumption (calculated from the above) | |||
| litres/100km | |||
| km/litre | |||
| UK MPG | |||
| US MPG | |||
| Carbon dioxide emissions | |||
| Carfolio Calculated CO2 ? | |||
| VED band (UK) | |||
| CO2 Effizienz (DE) | |||
| chassis | |||
| Engine position | front | ||
| Engine layout | longitudinal | ||
| Drive wheels | rear wheel drive | ||
| Torque split | N/A | ||
| Steering | |||
| turns lock-to-lock | |||
| Turning circle | |||
| Front suspension | |||
| Rear suspension | |||
| Wheel size front | |||
| Wheel size rear | |||
| Tyres front | 31 x 4 | ||
| Tyres rear | 31 x 4 | ||
| Brakes F/R | -/Dr | ||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Gearbox | 3 speed manual | ||
| Top gear ratio | |||
| Final drive ratio | |||
| general | |||
| Carfolio.com ID | 540870 | ||
| Production total | |||
| Model code | |||
| Model family | Six Thirty One | ||
| RAC rating | 19.8 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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National Six Sedan added 2018-01-26. Last modified 2020-03-16. |
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