The 20/30 hp ES Sport is a rear wheel drive saloon (sedan) motor vehicle with a front located engine, manufactured by Alfa Romeo.
It is powered by a naturally aspirated engine of 4.8 litre capacity. This powerplant features side valve valve gear, 4 cylinder layout, and 2 valves per cylinder. It develops 67 bhp (68 PS/50 kW) of power at 2600 rpm.
The engine drives the wheels through a 4 speed manual gearbox.
Claimed weight at the kerb is 1200 kg.
Maximum quoted speed is 130 km/h (81 mph).
Full specs
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| Carrocería | |||
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| Carrocería | 4/5 seater sedan/saloon | ||
| Número de puertas | 4 | ||
| diseñado por | |||
| Dimensiones y pesos | |||
| Distancia entre ejes | 2800 | 110.2 | |
| Vía delantera | 1450 | 57.1 | |
| Vía trasera | 1450 | 57.1 | |
| Longitud | 4700 | 185 | |
| Ancho | 1780 | 70.1 | |
| Altura | 1700 | 66.9 | |
| Despeje del suelo | |||
| Relación Largo:Dist.entre ejes | 1.68 | ||
| Peso en vacío | 1200 kg | 2646 | |
| Distribución del peso (% adelante) | |||
| Capacità serbatoio | |||
| Aerodinámica | |||
| Coeficiente de penetración | |||
| Superficie frontal | |||
| SCx | |||
| Tren motriz | |||
| naturally aspirated petrol | |||
| Fabricante del motor | Alfa Romeo | ||
| Código de motor | |||
| Número de cilindros | Straight 4 | ||
| Cilindrada | 4.8 litre 4750 cc (289.863 cu in) |
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| Diámetro × Carrera | 102 × 130 mm
4.02 × 5.12 in |
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| Relación diámetro/carrera | 0.78 | ||
| Distribución | side valve (SV)
2 válvulas por cilindro 8 Total de válvulas |
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| Potencia nominal | 68 PS (67 bhp) (50 kW) a 2600 rpm |
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| Par motor máximo | |||
| Potencia específica | 10.5 kW/litre 14.3 ps/litre 14.1 bhp/litre 0.23 bhp/cu in |
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| Materiales de block / culata | cast iron block | ||
| Lubricación | |||
| Relación de compresión | 4.45:1 | ||
| Alimentación | 1 Ze carb | ||
| Maximum RPM | |||
| Casquillos de cigüeñal | |||
| Engine coolant | Water | ||
| 1187.5 cc | |||
| Aspiración | Normal | ||
| Compresor | N/A | ||
| intercooler | None | ||
| catalizador | N | ||
| Rendimiento | |||
| 0-80km/h | |||
| 0-60mph | |||
| 0-100km/h | |||
| 0-160km/h | |||
| 0-400m | |||
| 0-1000m | |||
| Velocidad máxima | 130 km/h (81 mph) | ||
| Power-to-weight ratio | Higher is better 56.61 PS/tonne (1000 kg) 0.06 PS/kg 41.63 kW/tonne (1000 kg) 0.04 kW/kg 55.83 bhp/tonne (1000 kg) 0.06 bhp/kg 0.02 bhp/lb |
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| Weight-to-power ratio | Lower is better 24.02 kg/kW 40.12 lb/bhp |
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| Consumos | |||
| Consumo de combustible | |||
| universal fuel consumption (calculated from the above) | |||
| litres/100km | |||
| km/litre | |||
| UK MPG | |||
| US MPG | |||
| Emisiones de CO2 | |||
| Carfolio Calculated CO2 ? | |||
| VED band (UK) | |||
| CO2 Effizienz (DE) | |||
| Chasis | |||
| Ubicación del motor | front | ||
| Engine layout | longitudinal | ||
| Tracción | rear wheel drive | ||
| Alimentación | N/A | ||
| Dirección, tipo | |||
| turns lock-to-lock | |||
| Turning circle | |||
| Suspensión delantera | LA.LS. | ||
| Suspensión trasera | LA.LS. | ||
| Ruedas delante | |||
| Ruedas detrás | |||
| Neumáticos delante | 820 x 120 | ||
| Neumáticos detrás | 820 x 120 | ||
| Brakes F/R | -/Dr | ||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Transmisión | 4 speed manual | ||
| Eje trasero desmultiplicación | 1 | ||
| Desmultiplicación grupo cónico | |||
| General | |||
| Carfolio.com ID | 51249 | ||
| Unidades producidas | 124 | ||
| Model code | |||
| RAC rating | 25.8 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1921 Alfa Romeo 20/30 hp ES Sport added before December 1995. Last modified 2013-02-28. |
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