The Firebird Formula 400 Ram Air is a rear wheel drive coupé car with a front mounted engine, sold by Pontiac.
Its 8 cylinder, overhead valve naturally aspirated powerplant has 2 valves per cylinder and a displacement of 6.6 litres. This unit provides power and torque figures of 345 bhp (350 PS/257 kW) at 5000 rpm and 583 Nm (430 lbft/59.5 kgm) at 3400 rpm respectively.
The engine transfers its power through to the wheels via a 3 speed manual transmission.
Stated weight at the kerb is 1626 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 | 2743 mm | 108 inches | |
| Track/tread (front) | 1565 mm | 61.6 inches | |
| Track/tread (rear) | 1532 mm | 60.3 inches | |
| Length | 4867 mm | 191.6 inches | |
| Width | 1864 mm | 73.4 inches | |
| Height | 1280 mm | 50.4 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.77 | ||
| Kerb weight | 1626 kg | 3585 lb | |
| Weight distribution | |||
| fuel tank capacity | |||
| 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 6555 cc (400.011 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 | 350 PS (345 bhp) (257 kW) at 5000 rpm |
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| maximum torque | 583 Nm (430 ft·lb) (59.5 kgm) at 3400 rpm |
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| Specific output | 39.2 kW/litre 53.4 ps/litre 52.6 bhp/litre 0.86 bhp/cu in |
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| Specific torque |
88.94 Nm/litre
1.07 ft·lb/cu3 |
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| Engine construction | cast iron block & head | ||
| Lubrication | wet sumped | ||
| compression ratio | 10.5:1 | ||
| Fuel system | |||
| bmep (brake mean effective pressure) | 1117.6 kPa (162.1 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | |||
| Engine coolant | Water | ||
| Unitary capacity | 819.38 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | N | ||
| 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 215.13 PS/tonne (1000 kg) 0.22 PS/kg 158.22 kW/tonne (1000 kg) 0.16 kW/kg 212.18 bhp/tonne (1000 kg) 0.21 bhp/kg 0.09 bhp/lb |
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| Weight-to-power ratio | Lower is better 6.32 kg/kW 10.56 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 | |||
| Turning circle | |||
| Front suspension | |||
| Rear suspension | |||
| Wheel size front | 7 x 15 | ||
| Wheel size rear | 7 x 15 | ||
| Tyres front | F60-15 | ||
| Tyres rear | F60-15 | ||
| Brakes F/R | Di/Dr | ||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Gearbox | 3 speed manual | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 3.55 | ||
| general | |||
| Carfolio.com ID | 224785 | ||
| Production total | |||
| Model code | 2687 | ||
| RAC rating | 54.3 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1970 Pontiac Firebird Formula 400 Ram Air added 2010-12-14. Last modified 2020-02-02. |
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