The Alvis Speed Twenty SA is a roadster with 4 doors and a front mounted engine which delivers the power to all four wheels.
It's powered courtesy of a naturally aspirated engine of 2.5 litre capacity. This powerplant features overhead valve valve gear, 6 cylinder layout, and 2 valves per cylinder. It develops 90 bhp (91 PS/67 kW) of power at 4500 rpm.
The engine transmits power to the wheels via a 4 speed manual set of gears.
The Alvis Speed Twenty SA weighs a claimed 1321 kg at the kerb.
Top stated speed is 142 km/h or 88 mph.
Full specs
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| Carrosserie | |||
|---|---|---|---|
| Carrosserie | 2+2 seater roadster | ||
| Nombre de portes | 4 | ||
| Designer | |||
| Dimensions et poids | |||
| Empattement | 3124 | 123 | |
| Voies AV | 1321 | 52 | |
| Voies AR | 1321 | 52 | |
| Longueur | 4229 | 166.5 | |
| Largeur | 1651 | 65 | |
| Hauteur | |||
| Garde au sol | |||
| 1.35 | |||
| Poids avec pleins | 1321 kg | 2912 | |
| Répartition poids AV | |||
| Réservoir à essence | |||
| Caractéristiques aérodynamique | |||
| Coefficient de pénétration | |||
| maître-couple | |||
| SCx | |||
| naturally aspirated petrol | |||
| Constructeur du moteur | Alvis | ||
| Type moteur | |||
| Cylinders | Straight 6 | ||
| Cylindrée | 2.5 litre 2511 cc (153.231 cu in) |
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| Alésage × Course | 73 × 100 mm
2.87 × 3.94 in |
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| Rapport alésage / course | 0.73 | ||
| Distribution | overhead valve (OHV)
2 Soupapes par cylindre 12 Total vannes |
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| Puissance maximale | 91 PS (90 bhp) (67 kW) à 4500 tr/mn |
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| Couple maximale | |||
| Specific output | 26.7 kW/litre 36.3 ps/litre 35.8 bhp/litre 0.59 bhp/cu in |
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| Construction | |||
| Lubrification | |||
| Taux de compression | |||
| Carburant | 3 SU carbs | ||
| bmep (brake mean effective pressure) | |||
| Régime maximal | |||
| Nombre de paliers de vilebrequin | 4 | ||
| Refroidissement | Water | ||
| Cylindrée Unitaire | 418.5 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 | 142 km/h (88 mph) | ||
| Power-to-weight ratio | Higher is better 69.08 PS/tonne (1000 kg) 0.07 PS/kg 50.8 kW/tonne (1000 kg) 0.05 kW/kg 68.13 bhp/tonne (1000 kg) 0.07 bhp/kg 0.03 bhp/lb |
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| Weight-to-power ratio | Lower is better 19.68 kg/kW 32.88 lb/bhp |
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| 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 | wheel drive | ||
| Répartition du couple | |||
| Direction | |||
| turns lock-to-lock | |||
| Turning circle | |||
| Suspension AV | LA.SE. | ||
| Suspension AR | LA.SE. | ||
| Roues AV | |||
| Roues AR | |||
| Pneumatiques AV | |||
| Pneumatiques AR | |||
| Freins AV/AR | Dr/Dr | ||
| Diamètre des freins AV | |||
| Diamètre des freins AR | |||
| Braked area | |||
| Transmission | 4 speed manual | ||
| Rapport de démultiplication supérieure | 1 | ||
| Rapport de pont | 4.70 | ||
| Généralités | |||
| Carfolio.com ID | 126797 | ||
| Production total | |||
| Type mines | |||
| RAC rating | 19.8 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1932 Alvis Speed Twenty SA added 2005-03-08. Last modified 2013-02-28. |
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