The Earl Model 40 Roadster is a roadster with 2 doors and a front mounted powerplant which transmits its power to the rear wheels.
It is powered by a naturally aspirated engine of 3.2 litre capacity. This powerplant features side valve valve gear, 4 cylinder layout, and 2 valves per cylinder. It has an output of 37.5 bhp (38 PS/28 kW) of power at 2400 rpm.
A 3 speed manual 'box supplies the power to the driven wheels.
Full specs
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| Carrosserie | |||
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| Carrosserie | 2 seater roadster | ||
| Nombre de portes | 2 | ||
| Designer | |||
| Dimensions et poids | |||
| Empattement | 2845 | 112 | |
| Voies AV | |||
| Voies AR | |||
| 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 | Earl | ||
| Type moteur | |||
| Cylinders | Straight 4 | ||
| Cylindrée | 3.2 litre 3194 cc (194.91 cu in) |
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| Alésage × Course | 87.31 × 133.35 mm
3.44 × 5.25 in |
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| Rapport alésage / course | 0.65 | ||
| Distribution | side valve (SV)
2 Soupapes par cylindre 8 Total vannes |
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| Puissance maximale | 38 PS (37.5 bhp) (28 kW) à 2400 tr/mn |
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| Couple maximale | |||
| Specific output | 8.8 kW/litre 11.9 ps/litre 11.7 bhp/litre 0.19 bhp/cu in |
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| Construction | |||
| Lubrification | |||
| Taux de compression | 4.3:1 | ||
| Carburant | 1 Scoe carburettor | ||
| bmep (brake mean effective pressure) | |||
| Régime maximal | |||
| Nombre de paliers de vilebrequin | 3 | ||
| Refroidissement | Water | ||
| Cylindrée Unitaire | 798.5 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 | 32 x 4 | ||
| Pneumatiques AR | 32 x 4 | ||
| Freins AV/AR | -/Dr | ||
| Diamètre des freins AV | |||
| Diamètre des freins AR | 356 mm | ||
| Braked area | |||
| Transmission | 3 speed manual | ||
| Rapport de démultiplication supérieure | 1 | ||
| Rapport de pont | 4.66 | ||
| Généralités | |||
| Carfolio.com ID | 299277 | ||
| Production total | |||
| Type mines | |||
| RAC rating | 18.9 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1921 Earl Model 40 Roadster added 2012-12-17. Last modified 2020-02-02. |
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