The Pontiac Firebird Trans Am GTA is a 2 door coupé-bodied road car with a front mounted engine powering the rear wheels.
The power is produced by a naturally aspirated engine of 5 litre capacity. This unit features overhead valve valve gear, a 90 degree V 8 cylinder layout, and 2 valves per cylinder. It develops 225 bhp (228 PS/168 kW) of power at 4400 rpm, and maximum torque of 407 N·m (300 lb·ft/41.5 kgm) at 3200 rpm.
The engine transmits power to the wheels via a 5 speed manual gearbox.
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 | 2565 mm | 101 inches | |
| Track/tread (front) | 1540 mm | 60.6 inches | |
| Track/tread (rear) | 1564 mm | 61.6 inches | |
| Length | 4867 mm | 191.6 inches | |
| Width | 1829 mm | 72 inches | |
| Height | 1270 mm | 50 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.9 | ||
| Kerb weight | |||
| Weight distribution | |||
| fuel tank capacity | 58.7 litres | 12.9 [15.5] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | GM | ||
| Engine code | LB9 | ||
| Cylinders | V 8 in 90° vee | ||
| Capacity | 5 litre 5001 cc (305.18 cu in) |
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| Bore × Stroke | 94.9 × 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 | 228 PS (225 bhp) (168 kW) at 4400 rpm |
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| maximum torque | 407 Nm (300 ft·lb) (41.5 kgm) at 3200 rpm |
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| Specific output | 33.5 kW/litre 45.6 ps/litre 45 bhp/litre 0.74 bhp/cu in |
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| Specific torque |
81.38 Nm/litre
0.98 ft·lb/cu3 |
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| Engine construction | cast iron block & head | ||
| Lubrication | wet sumped | ||
| compression ratio | 9.3:1 | ||
| Fuel system | Rochester electronic fuel injection | ||
| bmep (brake mean effective pressure) | 1022.7 kPa (148.3 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 5 | ||
| Engine coolant | Water | ||
| Unitary capacity | 625.13 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 | |||
| 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 | 8J x 16 | ||
| Wheel size rear | 8J x 16 | ||
| Tyres front | Goodyear Eagle ZR50 Gatorback P245/50 ZR 16 | ||
| Tyres rear | Goodyear Eagle ZR50 Gatorback P245/50 ZR 16 | ||
| Brakes F/R | VeDi/Di-S | ||
| Front brake diameter | 267 mm | ||
| Rear brake diameter | 297 mm | ||
| Braked area | |||
| Gearbox | 5 speed manual | ||
| Top gear ratio | 0.63 | ||
| Final drive ratio | 3.08 | ||
| general | |||
| Carfolio.com ID | 462187 | ||
| Production total | |||
| Model code | |||
| RAC rating | 44.7 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1989 Pontiac Firebird Trans Am GTA added 2016-03-21. Last modified 2020-03-16. |
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