The Pontiac Bonneville Convertible 428 is a convertible/cabriolet with 2 doors and a front mounted engine which transmits its power through the rear wheels.
The Pontiac Bonneville Convertible 428 is one of the 262 range of cars from Pontiac.
The Pontiac Bonneville Convertible 428's engine is a naturally aspirated petrol, 7 litre, overhead valve 90 degree V 8 cylinder with 2 valves per cylinder. This unit has an output of 375 bhp (380 PS/280 kW) of power at 4800 rpm, and maximum torque of 640 N·m (472 lb·ft/65.3 kgm) at 3200 rpm.
A 4 speed manual gearbox supplies the power to the driven wheels.
Full specs
|
|
|||
| bodywork | |||
|---|---|---|---|
| Body type | 4/5 seater convertible/cabriolet | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 3150 mm | 124 inches | |
| Track/tread (front) | 1600 mm | 63 inches | |
| Track/tread (rear) | 1626 mm | 64 inches | |
| Length | 5677 mm | 223.5 inches | |
| Width | 2027 mm | 79.8 inches | |
| Height | 1382 mm | 54.4 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.8 | ||
| Kerb weight | |||
| Weight distribution | |||
| fuel tank capacity | |||
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | Pontiac | ||
| Engine code | |||
| Cylinders | V 8 in 90° vee | ||
| Capacity | 7 litre 6991 cc (426.617 cu in) |
||
| Bore × Stroke | 104.65 × 101.6 mm
4.12 × 4 in |
||
| Bore/stroke ratio | 1.03 | ||
| Valve gear | overhead valve (OHV)
2 valves per cylinder 16 valves in total |
||
| maximum power output (gross) |
380 PS (375 bhp) (280 kW) at 4800 rpm |
||
| maximum torque (gross) |
640 Nm (472 ft·lb) (65.3 kgm) at 3200 rpm |
||
| Specific output (gross) |
40 kW/litre 54.4 ps/litre 53.6 bhp/litre 0.88 bhp/cu in |
||
| Specific torque (gross) |
91.55 Nm/litre
1.11 ft·lb/cu3 |
||
| Engine construction | |||
| Lubrication | wet sumped | ||
| compression ratio | 10.5:1 | ||
| Fuel system | 1 carburettor | ||
| bmep (brake mean effective pressure) | 1150.4 kPa (166.9 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 5 | ||
| Engine coolant | Water | ||
| Unitary capacity | 873.88 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | N | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | |||
| Acceleration 0-60mph | |||
| Acceleration 0-100km/h | |||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | |||
| Standing kilometre | |||
| Maximum speed | |||
| Power-to-weight ratio | |||
| Weight-to-power ratio | |||
| fuel consumption | |||
| Fuel consumption | |||
| universal fuel consumption (calculated from the above) | |||
| litres/100km | |||
| km/litre | |||
| UK MPG | |||
| US MPG | |||
| Carbon dioxide emissions | |||
| Carfolio Calculated CO2 ? | |||
| VED band (UK) | |||
| CO2 Effizienz (DE) | |||
| chassis | |||
| Engine position | front | ||
| Engine layout | longitudinal | ||
| Drive wheels | rear wheel drive | ||
| Torque split | N/A | ||
| Steering | |||
| turns lock-to-lock | |||
| Turning circle | |||
| Front suspension | |||
| Rear suspension | |||
| Wheel size front | 6JK x 14 | ||
| Wheel size rear | 6JK x 14 | ||
| Tyres front | 8.55 x 14 | ||
| Tyres rear | 8.55 x 14 | ||
| Brakes F/R | Dr/Dr | ||
| Front brake diameter | 279 mm | ||
| Rear brake diameter | 279 mm | ||
| Braked area | |||
| Gearbox | 4 speed manual | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 3.42 | ||
| general | |||
| Carfolio.com ID | 343783 | ||
| Production total | |||
| Model code | 26267 | ||
| Model family | 262 | ||
| RAC rating | 54.3 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
|
1968 Pontiac Bonneville Convertible 428 added 2013-07-15. Last modified 2020-06-10. |
|||