National Highway Twelve is an automobile that has a 2 door roadster type body with a front located engine supplying power to the rear wheels.
The National Highway Twelve's engine is a naturally aspirated petrol, 5.5 litre, side valve 60 degree V 12 cylinder with 2 valves per cylinder. It has an output of 80 bhp (81 PS/60 kW) of power at 2800 rpm.
Power is transmitted to the wheels through a 3 speed manual gearbox.
Full specs
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| Carrosserie | |||
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| Carrosserie | 3 seater roadster | ||
| Nombre de portes | 2 | ||
| Designer | |||
| Dimensions et poids | |||
| Empattement | 3251 | 128 | |
| Voies AV | 1422 | 56 | |
| Voies AR | 1422 | 56 | |
| Longueur | |||
| Largeur | |||
| Hauteur | |||
| Garde au sol | |||
| Poids avec pleins | |||
| Répartition poids AV | |||
| Réservoir à essence | |||
| Caractéristiques aérodynamique | |||
| Coefficient de pénétration | |||
| maître-couple | |||
| SCx | |||
| naturally aspirated petrol | |||
| Constructeur du moteur | National | ||
| Type moteur | |||
| Cylinders | V 12 in 60° vee | ||
| Cylindrée | 5.5 litre 5548 cc (338.56 cu in) |
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| Alésage × Course | 69.85 × 120.65 mm
2.75 × 4.75 in |
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| Rapport alésage / course | 0.58 | ||
| Distribution | side valve (SV)
2 Soupapes par cylindre 24 Total vannes |
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| Puissance maximale | 81 PS (80 bhp) (60 kW) à 2800 tr/mn |
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| Couple maximale | |||
| Specific output | 10.8 kW/litre 14.6 ps/litre 14.4 bhp/litre 0.24 bhp/cu in |
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| Construction | |||
| Lubrification | |||
| Taux de compression | |||
| Carburant | 1 Rayfield carburettor | ||
| bmep (brake mean effective pressure) | |||
| Régime maximal | |||
| Nombre de paliers de vilebrequin | |||
| Refroidissement | Water | ||
| Cylindrée Unitaire | 462.33 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalyseur | N | ||
| Performances | |||
| 0-80km/h | |||
| 0-60mph | |||
| 0-100km/h | |||
| 0-160km/h | |||
| 0-400m | |||
| 0-1000m | |||
| Vitesse | |||
| Power-to-weight ratio | |||
| Weight-to-power ratio | |||
| Consommation | |||
| Consommation | |||
| universal fuel consumption (calculated from the above) | |||
| litres/100km | |||
| km/litre | |||
| UK MPG | |||
| US MPG | |||
| Emissions de CO₂ | |||
| Carfolio Calculated CO2 ? | |||
| VED band (UK) | |||
| CO2 Effizienz (DE) | |||
| Châssis | |||
| Emplacement de moteur | front | ||
| Engine layout | longitudinal | ||
| Traction | rear wheel drive | ||
| Répartition du couple | N/A | ||
| Direction | |||
| turns lock-to-lock | |||
| Turning circle | |||
| Suspension AV | |||
| Suspension AR | |||
| Roues AV | |||
| Roues AR | |||
| Pneumatiques AV | 36 x 4½ | ||
| Pneumatiques AR | 36 x 4½ | ||
| Freins AV/AR | |||
| Diamètre des freins AV | |||
| Diamètre des freins AR | |||
| Braked area | |||
| Transmission | 3 speed manual | ||
| Rapport de démultiplication supérieure | 1 | ||
| Rapport de pont | 4.58 | ||
| Généralités | |||
| Carfolio.com ID | 201465 | ||
| Production total | |||
| Type mines | |||
| RAC rating | 36.3 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1916 National Highway Twelve added 2009-08-31. Last modified 2013-02-28. |
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