The Pontiac Grand Am is a rear wheel drive motor vehicle, with the engine placed in the front, and a 2 door coupé body.
Its 8 cylinder, overhead valve naturally aspirated engine has 2 valves per cylinder and a capacity of 6.6 litres. This unit produces power and torque figures of 170 bhp (172 PS/127 kW) at 3600 rpm and 434 Nm (320 lbft/44.3 kgm) at 2000 rpm respectively.
The engine transfers its power through to the wheels via a 3 speed automatic gearbox.
Its claimed kerb weight is 1950 kg.
Full specs
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| bodywork | |||
|---|---|---|---|
| Body type | 4/5 seater fixed-head coupé | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2845 mm | 112 inches | |
| Track/tread (front) | 1572 mm | 61.9 inches | |
| Track/tread (rear) | 1552 mm | 61.1 inches | |
| Length | 5298 mm | 208.6 inches | |
| Width | 1974 mm | 77.7 inches | |
| Height | 1344 mm | 52.9 inches | |
| Ground clearance | 107 mm | 4.2 inches | |
| length:wheelbase ratio | 1.86 | ||
| Kerb weight | 1950 kg | 4299 lb | |
| Weight distribution | 57% front | ||
| fuel tank capacity | 94.7 litres | 20.8 [25] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | Pontiac | ||
| Engine code | |||
| Cylinders | V 8 in 90° vee | ||
| Capacity | 6.6 litre 6556 cc (400.072 cu in) |
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| Bore × Stroke | 104.65 × 95.25 mm
4.12 × 3.75 in |
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| Bore/stroke ratio | 1.1 | ||
| Valve gear | overhead valve (OHV)
2 valves per cylinder 16 valves in total |
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| maximum power output (net) |
172 PS (170 bhp) (127 kW) at 3600 rpm |
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| maximum torque (net) |
434 Nm (320 ft·lb) (44.3 kgm) at 2000 rpm |
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| Specific output (net) |
19.3 kW/litre 26.3 ps/litre 25.9 bhp/litre 0.42 bhp/cu in |
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| Specific torque (net) |
66.2 Nm/litre
0.8 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | |||
| compression ratio | 8:1 | ||
| Fuel system | 1 Rochester carburettor | ||
| bmep (brake mean effective pressure) | 831.9 kPa (120.7 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | |||
| Engine coolant | Water | ||
| Unitary capacity | 819.5 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | |||
| performance | |||
| Acceleration 0-80km/h (50mph) | 7.4 s | ||
| Acceleration 0-60mph | 10.3 s | ||
| Acceleration 0-100km/h | |||
| Acceleration 0-160km/h (100mph) | 33.7 s | ||
| Standing quarter-mile | 17.5 s
@ 77.5 mph |
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| Standing kilometre | |||
| Maximum speed | |||
| Power-to-weight ratio | Higher is better 88.39 PS/tonne (1000 kg) 0.09 PS/kg 65.01 kW/tonne (1000 kg) 0.07 kW/kg 87.18 bhp/tonne (1000 kg) 0.09 bhp/kg 0.04 bhp/lb |
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| Weight-to-power ratio | Lower is better 15.38 kg/kW 25.69 lb/bhp |
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| 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 | 3.300 | ||
| Turning circle | |||
| Front suspension | I.DW.CS.ARB. | ||
| Rear suspension | LA.TA.CS.ARB. | ||
| Wheel size front | 7JJ x 15 | ||
| Wheel size rear | 7JJ x 15 | ||
| Tyres front | Uniroyal GR70-15 | ||
| Tyres rear | Uniroyal GR70-15 | ||
| Brakes F/R | Di/Dr-S | ||
| Front brake diameter | 279 mm | ||
| Rear brake diameter | 241 mm | ||
| Braked area | 2174 cm2 | ||
| Gearbox | 3 speed automatic | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 3.08 | ||
| general | |||
| Carfolio.com ID | 164032 | ||
| Production total | |||
| Model code | |||
| RAC rating | 54.3 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1973 Pontiac Grand Am added 2007-11-12. Last modified 2013-03-04. |
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