The 4-4-2 Hardtop Coupé Turbo Hydra-matic is an automobile from Oldsmobile, with rear wheel drive, a front mounted engine and a 2 door coupé body style.
It forms part of Oldsmobile's 34400 family of cars.
Its 8 cylinder, overhead valve naturally aspirated engine has 2 valves per cylinder and a volume of 7.5 litres. This unit provides power and torque figures of 340 bhp (345 PS/254 kW) at 4600 rpm and 623 Nm (460 lbft/63.5 kgm) at 3200 rpm respectively.
The engine supplies its power through to the wheels via a 3 speed automatic gearbox.
It weighs a stated 1730 kg at the kerb.
Full specs
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| bodywork | |||
|---|---|---|---|
| Body type | 4/5 seater fixed-head coupé | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2845 mm | 112 inches | |
| Track/tread (front) | 1518 mm | 59.8 inches | |
| Track/tread (rear) | 1499 mm | 59 inches | |
| Length | 5171 mm | 203.6 inches | |
| Width | 1951 mm | 76.8 inches | |
| Height | 1339 mm | 52.7 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.82 | ||
| Kerb weight | 1730 kg | 3814 lb | |
| Weight distribution | |||
| fuel tank capacity | 75.8 litres | 16.7 [20] 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 | 7.5 litre 7467 cc (455.664 cu in) |
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| Bore × Stroke | 104.9 × 108 mm
4.13 × 4.25 in |
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| Bore/stroke ratio | 0.97 | ||
| Valve gear | overhead valve (OHV)
2 valves per cylinder 16 valves in total |
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| maximum power output (gross) |
345 PS (340 bhp) (254 kW) at 4600 rpm |
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| maximum torque (gross) |
623 Nm (460 ft·lb) (63.5 kgm) at 3200 rpm |
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| Specific output (gross) |
34 kW/litre 46.2 ps/litre 45.5 bhp/litre 0.75 bhp/cu in |
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| Specific torque (gross) |
83.43 Nm/litre
1.01 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | wet sumped | ||
| compression ratio | 8.5:1 | ||
| Fuel system | 1 Rochester carburettor | ||
| bmep (brake mean effective pressure) | 1048.5 kPa (152.1 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 5 | ||
| Engine coolant | Water | ||
| Unitary capacity | 933.38 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 199.26 PS/tonne (1000 kg) 0.2 PS/kg 146.55 kW/tonne (1000 kg) 0.15 kW/kg 196.53 bhp/tonne (1000 kg) 0.2 bhp/kg 0.09 bhp/lb |
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| Weight-to-power ratio | Lower is better 6.82 kg/kW 11.4 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 | I.CS. | ||
| Rear suspension | LA.SE. | ||
| Wheel size front | 7JJ x 14 | ||
| Wheel size rear | 7JJ x 14 | ||
| Tyres front | G70 x 14 | ||
| Tyres rear | G70 x 14 | ||
| Brakes F/R | Dr/Dr | ||
| Front brake diameter | 241 mm | ||
| Rear brake diameter | 241 mm | ||
| Braked area | |||
| Gearbox | 3 speed automatic | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 3.23 | ||
| general | |||
| Carfolio.com ID | 69773 | ||
| Production total | |||
| Model code | 4487 | ||
| Model family | 34400 | ||
| RAC rating | 54.6 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1971 Oldsmobile 4-4-2 Hardtop Coupé Turbo Hydra-matic added before December 1995. Last modified 2021-07-11. |
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