The Pontiac Firebird Trans Am GTA is a coupé with 2 doors and a front mounted engine which supplies the power to the rear wheels.
The Firebird Trans Am GTA is part of Pontiac's 2F series.
Power is supplied by an overhead valve, 5.7 litre naturally aspirated 8 cylinder engine, with 2 valves per cylinder that provides power and torque figures of 240 bhp (243 PS/179 kW) at 4400 rpm and 461 N·m (340 lb·ft/47 kgm) at 3200 rpm respectively.
The engine delivers its power through to the wheels by means of a 4 speed automatic 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) | 1541 mm | 60.7 inches | |
| Track/tread (rear) | 1564 mm | 61.6 inches | |
| Length | 4958 mm | 195.2 inches | |
| Width | 1849 mm | 72.8 inches | |
| Height | 1262 mm | 49.7 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.93 | ||
| 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 | L98 | ||
| Cylinders | V 8 in 90° vee | ||
| Capacity | 5.7 litre 5733 cc (349.849 cu in) |
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| Bore × Stroke | 101.6 × 88.4 mm
4 × 3.48 in |
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| Bore/stroke ratio | 1.15 | ||
| Valve gear | overhead valve (OHV)
2 valves per cylinder 16 valves in total |
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| maximum power output (SAE net) |
243 PS (240 bhp) (179 kW) at 4400 rpm |
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| maximum torque (SAE net) |
461 Nm (340 ft·lb) (47 kgm) at 3200 rpm |
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| Specific output (SAE net) |
31.2 kW/litre 42.4 ps/litre 41.9 bhp/litre 0.69 bhp/cu in |
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| Specific torque (SAE net) |
80.41 Nm/litre
0.97 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | wet sumped | ||
| compression ratio | 9.3:1 | ||
| Fuel system | EFI | ||
| bmep (brake mean effective pressure) | 1010.5 kPa (146.6 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 5 | ||
| Engine coolant | Water | ||
| Unitary capacity | 716.63 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 | |||
| 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 | 8 x 16 | ||
| Wheel size rear | 8 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 | 4 speed automatic | ||
| Top gear ratio | 0.7 | ||
| Final drive ratio | 3.23 | ||
| general | |||
| Carfolio.com ID | 771540 | ||
| Production total | |||
| Model code | W87 | ||
| Model family | 2F | ||
| RAC rating | 51.2 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1991 Pontiac Firebird Trans Am GTA added 2022-09-16. Last modified 2022-09-18. |
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