The Firebird Trans Am is a rear wheel drive coupé road car with a front located engine, manufactured by Pontiac.
Its engine is a naturally aspirated petrol, 5 litre, overhead valve 90 degree V 8 cylinder with 2 valves per cylinder. This powerplant develops 205 bhp (208 PS/153 kW) of power at 4400 rpm, and maximum torque of 365 N·m (269 lb·ft/37.2 kgm) at 3200 rpm.
A 5 speed manual 'box delivers the power to the driven wheels.
It weighs a stated 1480 kg at the kerb.
Maximum claimed speed is 208 km/h, or 129 mph.
Full specs
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| bodywork | |||
|---|---|---|---|
| Body type | 2+2 seater fixed-head coupé | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2565 mm | 101 inches | |
| Track/tread (front) | 1540 mm | 60.6 inches | |
| Track/tread (rear) | 1565 mm | 61.6 inches | |
| Length | 4872 mm | 191.8 inches | |
| Width | 1840 mm | 72.4 inches | |
| Height | 1260 mm | 49.6 inches | |
| Ground clearance | 115 mm | 4.5 inches | |
| length:wheelbase ratio | 1.9 | ||
| Kerb weight | 1480 kg | 3263 lb | |
| Weight distribution | |||
| fuel tank capacity | 61 litres | 13.4 [16.1] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | GM | ||
| Engine code | |||
| Cylinders | V 8 in 90° vee | ||
| Capacity | 5 litre 5013 cc (305.912 cu in) |
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| Bore × Stroke | 95 × 88.4 mm
3.74 × 3.48 in |
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| Bore/stroke ratio | 1.07 | ||
| Valve gear | overhead valve (OHV)
2 valves per cylinder 16 valves in total |
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| maximum power output (SAEnet) |
208 PS (205 bhp) (153 kW) at 4400 rpm |
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| maximum torque (SAEnet) |
365 Nm (269 ft·lb) (37.2 kgm) at 3200 rpm |
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| Specific output (SAEnet) |
30.5 kW/litre 41.5 ps/litre 40.9 bhp/litre 0.67 bhp/cu in |
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| Specific torque (SAEnet) |
72.81 Nm/litre
0.88 ft·lb/cu3 |
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| Engine construction | cast iron block & head | ||
| Lubrication | wet sumped | ||
| compression ratio | 9.5:1 | ||
| Fuel system | MPFi | ||
| bmep (brake mean effective pressure) | 915 kPa (132.7 psi) | ||
| Maximum RPM | 5000 rpm | ||
| crankshaft bearings | 5 | ||
| Engine coolant | Water | ||
| Unitary capacity | 626.63 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 | 208 km/h (129 mph) | ||
| Power-to-weight ratio | Higher is better 140.44 PS/tonne (1000 kg) 0.14 PS/kg 103.29 kW/tonne (1000 kg) 0.1 kW/kg 138.51 bhp/tonne (1000 kg) 0.14 bhp/kg 0.06 bhp/lb |
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| Weight-to-power ratio | Lower is better 9.68 kg/kW 16.17 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 | 2.200 | ||
| Turning circle | |||
| Front suspension | I.W.CS.ARB. | ||
| Rear suspension | LA.LongLeadArms.CS.ARB. | ||
| Wheel size front | |||
| Wheel size rear | |||
| Tyres front | P245/50 R 15 | ||
| Tyres rear | P245/50 R 15 | ||
| Brakes F/R | VeDi/Dr-S | ||
| Front brake diameter | 267 mm | ||
| Rear brake diameter | |||
| Braked area | 1985 cm2 | ||
| Gearbox | 5 speed manual | ||
| Top gear ratio | 0.63 | ||
| Final drive ratio | 3.70 | ||
| general | |||
| Carfolio.com ID | 99165 | ||
| Production total | |||
| Model code | |||
| RAC rating | 44.8 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1985 Pontiac Firebird Trans Am added 2002-09-05. Last modified 2013-02-28. |
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