The Grand Prix 428 is a rear wheel drive coupé passenger car with a front positioned engine, sold by Pontiac.
The power is produced by a naturally aspirated engine of 7 litre capacity. This powerplant features overhead valve valve gear, a 90 degree V 8 cylinder layout, and 2 valves per cylinder. It produces 370 bhp (375 PS/276 kW) of power at 4800 rpm, and maximum torque of 640 N·m (472 lb·ft/65.3 kgm) at 3200 rpm.
The engine delivers its power through to the wheels via a 3 speed automatic transmission.
It weighs a quoted 1564 kg at the kerb.
Full specs
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| Carrocería | |||
|---|---|---|---|
| Carrocería | 4/5 seater fixed-head coupé | ||
| Número de puertas | 2 | ||
| diseñado por | |||
| Dimensiones y pesos | |||
| Distancia entre ejes | 2997 | 118 | |
| Vía delantera | 1575 | 62 | |
| Vía trasera | 1524 | 60 | |
| Longitud | 5340 | 210.2 | |
| Ancho | 1923 | 75.7 | |
| Altura | 1318 | 51.9 | |
| Despeje del suelo | 140 | 5.5 | |
| Relación Largo:Dist.entre ejes | 1.78 | ||
| Peso en vacío | 1564 kg | 3448 | |
| Distribución del peso (% adelante) | |||
| Capacità serbatoio | 100.4 litres | 22.1 [26.5] UK [US] gal. | |
| Aerodinámica | |||
| Coeficiente de penetración | |||
| Superficie frontal | |||
| SCx | |||
| Tren motriz | |||
| naturally aspirated petrol | |||
| Fabricante del motor | GM | ||
| Código de motor | |||
| Número de cilindros | V 8 in 90° vee | ||
| Cilindrada | 7 litre 6991 cc (426.617 cu in) |
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| Diámetro × Carrera | 104.65 × 101.6 mm
4.12 × 4 in |
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| Relación diámetro/carrera | 1.03 | ||
| Distribución | overhead valve (OHV)
2 válvulas por cilindro 16 Total de válvulas |
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| Potencia nominal (gross) |
375 PS (370 bhp) (276 kW) a 4800 rpm |
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| Par motor máximo (gross) |
640 Nm (472 ft·lb) (65.3 kgm) a 3200 rpm |
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| Potencia específica (gross) |
39.5 kW/litre 53.7 ps/litre 52.9 bhp/litre 0.87 bhp/cu in |
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(gross) |
91.55 Nm/litre
1.11 ft·lb/cu3 |
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| Materiales de block / culata | cast iron block & head | ||
| Lubricación | Cárter húmedo | ||
| Relación de compresión | 10.5:1 | ||
| Alimentación | 1 Rochester carburettor | ||
| 1150.4 kPa (166.9 psi) | |||
| Maximum RPM | |||
| Casquillos de cigüeñal | 5 | ||
| Engine coolant | Water | ||
| 873.88 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 239.86 PS/tonne (1000 kg) 0.24 PS/kg 176.41 kW/tonne (1000 kg) 0.18 kW/kg 236.57 bhp/tonne (1000 kg) 0.24 bhp/kg 0.11 bhp/lb |
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| Weight-to-power ratio | Lower is better 5.67 kg/kW 9.47 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 | 14.10 m | ||
| Suspensión delantera | I.CS. | ||
| Suspensión trasera | LA.CS. | ||
| Ruedas delante | 7 x 14 | ||
| Ruedas detrás | 7 x 14 | ||
| Neumáticos delante | G78-14 | ||
| Neumáticos detrás | G78-14 | ||
| Brakes F/R | Di/Dr-S | ||
| Front brake diameter | 282 mm | ||
| Rear brake diameter | 241 mm | ||
| Braked area | |||
| Transmisión | 3 speed automatic | ||
| Eje trasero desmultiplicación | 1 | ||
| Desmultiplicación grupo cónico | 3.23 | ||
| General | |||
| Carfolio.com ID | 67078 | ||
| Unidades producidas | |||
| Model code | |||
| RAC rating | 54.3 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1969 Pontiac Grand Prix 428 added before December 1995. Last modified 2013-03-04. |
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