This vehicle has a 2 door coupé body style with a front mounted engine powering the rear wheels.
Powering the Pontiac Sunbird Sport Coupé is an overhead valve, 2.5 litre naturally aspirated 4 cylinder engine, with 2 valves per cylinder that provides power and torque figures of 85 bhp (86 PS/63 kW) at 4400 rpm and 167 N·m (123 lb·ft/17 kgm) at 2800 rpm respectively.
The power is transferred to the wheels through a 3 speed automatic gearbox.
Claimed kerb weight is 1206 kg.
Full specs
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| bodywork | |||
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| Body type | 2+2 seater fixed-head coupé | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2460 mm | 96.9 inches | |
| Track/tread (front) | 1405 mm | 55.3 inches | |
| Track/tread (rear) | 1374 mm | 54.1 inches | |
| Length | 4550 mm | 179.1 inches | |
| Width | 1660 mm | 65.4 inches | |
| Height | 1260 mm | 49.6 inches | |
| Ground clearance | 124 mm | 4.9 inches | |
| length:wheelbase ratio | 1.85 | ||
| Kerb weight | 1206 kg | 2659 lb | |
| Weight distribution | |||
| fuel tank capacity | 70 litres | 15.4 [18.5] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | GM | ||
| Engine code | |||
| Cylinders | Straight 4 | ||
| Capacity | 2.5 litre 2471 cc (150.79 cu in) |
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| Bore × Stroke | 101.6 × 76.2 mm
4 × 3 in |
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| Bore/stroke ratio | 1.33 | ||
| Valve gear | overhead valve (OHV)
2 valves per cylinder 8 valves in total |
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| maximum power output (DIN) |
86 PS (85 bhp) (63 kW) at 4400 rpm |
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| maximum torque (DIN) |
167 Nm (123 ft·lb) (17 kgm) at 2800 rpm |
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| Specific output (DIN) |
25.7 kW/litre 34.9 ps/litre 34.4 bhp/litre 0.56 bhp/cu in |
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| Specific torque (DIN) |
67.58 Nm/litre
0.82 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | |||
| compression ratio | 8.3:1 | ||
| Fuel system | 1 Ho carb | ||
| bmep (brake mean effective pressure) | 849.3 kPa (123.2 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 5 | ||
| Engine coolant | Water | ||
| Unitary capacity | 617.75 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | Y | ||
| 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 | Higher is better 71.46 PS/tonne (1000 kg) 0.07 PS/kg 52.56 kW/tonne (1000 kg) 0.05 kW/kg 70.48 bhp/tonne (1000 kg) 0.07 bhp/kg 0.03 bhp/lb |
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| Weight-to-power ratio | Lower is better 19.03 kg/kW 31.78 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 | 4.400 | ||
| Turning circle | 11.70 m | ||
| Front suspension | I.W.CS. | ||
| Rear suspension | LA.RA.TA.CS. | ||
| Wheel size front | |||
| Wheel size rear | |||
| Tyres front | |||
| Tyres rear | |||
| Brakes F/R | Di/Dr-S | ||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | 1707 cm2 | ||
| Gearbox | 3 speed automatic | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 2.73 | ||
| general | |||
| Carfolio.com ID | 66660 | ||
| Production total | |||
| Model code | |||
| RAC rating | 25.6 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1979 Pontiac Sunbird Sport Coupé added 1996-11-10. Last modified 2013-02-28. |
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