The 4-20 Roadster is a rear wheel drive roadster car with a front mounted engine, sold by Harvard.
Its engine is a naturally aspirated petrol, 2 litre, overhead valve 4 cylinder with 2 valves per cylinder.
The power is supplied to the wheels by means of a 3 speed manual gearbox.
Its quoted kerb weight is 454 kg.
Full specs
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| Carrosserie | |||
|---|---|---|---|
| Carrosserie | 2 seater roadster | ||
| Nombre de portes | 2 | ||
| Designer | |||
| Dimensions et poids | |||
| Empattement | 2540 | 100 | |
| Voies AV | 1118 | 44 | |
| Voies AR | 1118 | 44 | |
| Longueur | |||
| Largeur | |||
| Hauteur | |||
| Garde au sol | |||
| Poids avec pleins | 454 kg | 1001 | |
| Répartition poids AV | |||
| Réservoir à essence | 26.5 litres | 5.8 [7] UK [US] gal. | |
| Caractéristiques aérodynamique | |||
| Coefficient de pénétration | |||
| maître-couple | |||
| SCx | |||
| naturally aspirated petrol | |||
| Constructeur du moteur | Sterling | ||
| Type moteur | |||
| Cylinders | Straight 4 | ||
| Cylindrée | 2 litre 1969 cc (120.156 cu in) |
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| Alésage × Course | 76.2 × 107.95 mm
3 × 4.25 in |
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| Rapport alésage / course | 0.71 | ||
| Distribution | overhead valve (OHV)
2 Soupapes par cylindre 8 Total vannes |
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| Puissance maximale | |||
| Couple maximale | |||
| Construction | |||
| Lubrification | |||
| Taux de compression | |||
| Carburant | 1 Zenith carburettor | ||
| bmep (brake mean effective pressure) | |||
| Régime maximal | |||
| Nombre de paliers de vilebrequin | 2 | ||
| Refroidissement | Water | ||
| Cylindrée Unitaire | 492.25 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 | 28 x 3 | ||
| Pneumatiques AR | 28 x 3 | ||
| 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 | 4.00 | ||
| Généralités | |||
| Carfolio.com ID | 215149 | ||
| Production total | |||
| Type mines | |||
| RAC rating | 14.4 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1915 Harvard 4-20 Roadster added 2010-06-04. Last modified 2013-02-28. |
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