It's powered courtesy of a naturally aspirated engine of 3.2 litre capacity. This unit features side valve valve gear, 4 cylinder layout, and 2 valves per cylinder. It produces 36 bhp (36.5 PS/26.8 kW) of power at 1800 rpm.
The power is supplied to the wheels via a 3 speed manual transmission.
The Birch Super Four weighs a claimed 998 kg at the kerb.
Full specs
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| Carrocería | |||
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| Carrocería | |||
| Número de puertas | |||
| diseñado por | |||
| Dimensiones y pesos | |||
| Distancia entre ejes | 2921 | 115 | |
| Vía delantera | |||
| Vía trasera | |||
| Longitud | |||
| Ancho | |||
| Altura | |||
| Despeje del suelo | |||
| Relación Largo:Dist.entre ejes | |||
| Peso en vacío | 998 kg | 2200 | |
| Distribución del peso (% adelante) | |||
| Capacità serbatoio | |||
| Aerodinámica | |||
| Coeficiente de penetración | |||
| Superficie frontal | |||
| SCx | |||
| Tren motriz | |||
| naturally aspirated petrol | |||
| Fabricante del motor | Lycoming | ||
| Código de motor | |||
| Número de cilindros | Straight 4 | ||
| Cilindrada | 3.2 litre 3153 cc (192.408 cu in) |
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| Diámetro × Carrera | 88.9 × 127 mm
3.5 × 5 in |
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| Relación diámetro/carrera | 0.7 | ||
| Distribución | side valve (SV)
2 válvulas por cilindro 8 Total de válvulas |
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| Potencia nominal | 36.5 PS (36 bhp) (26.8 kW) a 1800 rpm |
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| Par motor máximo | |||
| Potencia específica | 8.5 kW/litre 11.6 ps/litre 11.4 bhp/litre 0.19 bhp/cu in |
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| Materiales de block / culata | |||
| Lubricación | Cárter húmedo | ||
| Relación de compresión | |||
| Alimentación | 1 Zenith carburettor | ||
| Maximum RPM | |||
| Casquillos de cigüeñal | 2 | ||
| Engine coolant | Water | ||
| 788.25 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 | |||
| Power-to-weight ratio | Higher is better 36.57 PS/tonne (1000 kg) 0.04 PS/kg 26.9 kW/tonne (1000 kg) 0.03 kW/kg 36.07 bhp/tonne (1000 kg) 0.04 bhp/kg 0.02 bhp/lb |
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| Weight-to-power ratio | Lower is better 37.18 kg/kW 62.1 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 | |||
| Suspensión trasera | |||
| Ruedas delante | |||
| Ruedas detrás | |||
| Neumáticos delante | 32 x 3½ | ||
| Neumáticos detrás | 32 x 3½ | ||
| Brakes F/R | |||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Transmisión | 3 speed manual | ||
| Eje trasero desmultiplicación | 1 | ||
| Desmultiplicación grupo cónico | 4.25 | ||
| General | |||
| Carfolio.com ID | 207647 | ||
| Unidades producidas | |||
| Model code | |||
| RAC rating | 19.6 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1919 Birch Super Four added 2010-02-18. Last modified 2013-02-28. |
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