The Bonneville Convertible is a rear wheel drive convertible/cabriolet car with a front located engine, sold by Pontiac.
It's powered courtesy of a naturally aspirated engine of 6.9 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 353 bhp (358 PS/263 kW) of power at 5000 rpm, and maximum torque of 617 N·m (455 lb·ft/62.9 kgm) at 3400 rpm.
The engine delivers its power through to the wheels via a 3 speed automatic transmission.
Full specs
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| bodywork | |||
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| Body type | 4/5 seater convertible/cabriolet | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 3124 mm | 123 inches | |
| Track/tread (front) | 1588 mm | 62.5 inches | |
| Track/tread (rear) | 1626 mm | 64 inches | |
| Length | 5560 mm | 218.9 inches | |
| Width | 1999 mm | 78.7 inches | |
| Height | 1400 mm | 55.1 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.78 | ||
| Kerb weight | |||
| Weight distribution | |||
| fuel tank capacity | |||
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | Pontiac | ||
| Engine code | 421HO Trophy V-8 | ||
| Cylinders | V 8 in 90° vee | ||
| Capacity | 6.9 litre 6891 cc (420.515 cu in) |
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| Bore × Stroke | 103.9 × 101.6 mm
4.09 × 4 in |
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| Bore/stroke ratio | 1.02 | ||
| Valve gear | overhead valve (OHV)
2 valves per cylinder 16 valves in total |
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| maximum power output (gross) |
358 PS (353 bhp) (263 kW) at 5000 rpm |
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| maximum torque (gross) |
617 Nm (455 ft·lb) (62.9 kgm) at 3400 rpm |
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| Specific output (gross) |
38.2 kW/litre 51.9 ps/litre 51.2 bhp/litre 0.84 bhp/cu in |
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| Specific torque (gross) |
89.54 Nm/litre
1.08 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | wet sumped | ||
| compression ratio | 10.75:1 | ||
| Fuel system | 1 carburettor | ||
| bmep (brake mean effective pressure) | 1125.2 kPa (163.2 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 5 | ||
| Engine coolant | Water | ||
| Unitary capacity | 861.38 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 | 6K x 14 | ||
| Wheel size rear | 6K x 14 | ||
| Tyres front | 8.00 x 14 | ||
| Tyres rear | 8.00 x 14 | ||
| Brakes F/R | Dr/Dr | ||
| Front brake diameter | 279 mm | ||
| Rear brake diameter | 279 mm | ||
| Braked area | |||
| Gearbox | 3 speed automatic | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 3.42 | ||
| general | |||
| Carfolio.com ID | 386474 | ||
| Production total | |||
| Model code | 2867 | ||
| RAC rating | 53.5 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1963 Pontiac Bonneville Convertible Automatic added 2014-11-21. Last modified 2020-02-02. |
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