Pontiac Grand Prix 428 HO is an automobile that has a 2 door coupé body style with a front positioned engine powering the rear wheels.
It is powered 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 has an output of 390 bhp (395 PS/291 kW) of power at 5200 rpm, and maximum torque of 630 N·m (465 lb·ft/64.2 kgm) at 3400 rpm.
Power is supplied to the wheels through a 4 speed manual gearbox.
Quoted weight at the kerb is 1564 kg.
Full specs
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| Carrocería | |||
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| 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 | |||
| 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 | 395 PS (390 bhp) (291 kW) a 5200 rpm |
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| Par motor máximo | 630 Nm (465 ft·lb) (64.2 kgm) a 3400 rpm |
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| Potencia específica | 41.6 kW/litre 56.6 ps/litre 55.8 bhp/litre 0.91 bhp/cu in |
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90.12 Nm/litre
1.09 ft·lb/cu3 |
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| Materiales de block / culata | cast iron block & head | ||
| Lubricación | Cárter húmedo | ||
| Relación de compresión | 10.75:1 | ||
| Alimentación | 1 Rochester carburettor | ||
| 1132.4 kPa (164.2 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 252.83 PS/tonne (1000 kg) 0.25 PS/kg 185.95 kW/tonne (1000 kg) 0.19 kW/kg 249.36 bhp/tonne (1000 kg) 0.25 bhp/kg 0.11 bhp/lb |
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| Weight-to-power ratio | Lower is better 5.38 kg/kW 8.98 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 | 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 | 4 speed manual | ||
| Eje trasero desmultiplicación | 1 | ||
| Desmultiplicación grupo cónico | 3.90 | ||
| General | |||
| Carfolio.com ID | 288178 | ||
| 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 HO added 2012-10-27. Last modified 2020-02-02. |
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