The Plymouth GTX Hardtop is a coupé with 2 doors and a front mounted engine which supplies its power through the rear wheels.
It is powered by a naturally aspirated engine of 7.2 litre capacity. This unit features overhead valve valve gear, a 90 degree V 8 cylinder layout, and 2 valves per cylinder. It has an output of 375 bhp (380 PS/280 kW) of power at 4600 rpm, and maximum torque of 651 N·m (480 lb·ft/66.4 kgm) at 3200 rpm.
The engine drives the wheels via a 3 speed automatic set of gears.
It weighs a claimed 1597 kg at the kerb.
Full specs
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| bodywork | |||
|---|---|---|---|
| Body type | 2+2 seater fixed-head coupé | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2946 mm | 116 inches | |
| Track/tread (front) | 1521 mm | 59.9 inches | |
| Track/tread (rear) | 1504 mm | 59.2 inches | |
| Length | 5149 mm | 202.7 inches | |
| Width | 1941 mm | 76.4 inches | |
| Height | 1334 mm | 52.5 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.75 | ||
| Kerb weight | 1597 kg | 3521 lb | |
| Weight distribution | |||
| fuel tank capacity | 72.1 litres | 15.9 [19] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | Chrysler | ||
| Engine code | |||
| Cylinders | V 8 in 90° vee | ||
| Capacity | 7.2 litre 7206 cc (439.737 cu in) |
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| Bore × Stroke | 109.73 × 95.25 mm
4.32 × 3.75 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 (Gross) |
380 PS (375 bhp) (280 kW) at 4600 rpm |
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| maximum torque (Gross) |
651 Nm (480 ft·lb) (66.4 kgm) at 3200 rpm |
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| Specific output (Gross) |
38.8 kW/litre 52.8 ps/litre 52 bhp/litre 0.85 bhp/cu in |
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| Specific torque (Gross) |
90.34 Nm/litre
1.09 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | |||
| compression ratio | 10.1:1 | ||
| Fuel system | |||
| bmep (brake mean effective pressure) | 1135.3 kPa (164.7 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 5 | ||
| Engine coolant | Water | ||
| Unitary capacity | 900.75 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 238.08 PS/tonne (1000 kg) 0.24 PS/kg 175.1 kW/tonne (1000 kg) 0.18 kW/kg 234.82 bhp/tonne (1000 kg) 0.23 bhp/kg 0.1 bhp/lb |
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| Weight-to-power ratio | Lower is better 5.71 kg/kW 9.54 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 | 12.40 m | ||
| Front suspension | I.TB. | ||
| Rear suspension | LA.LS. | ||
| Wheel size front | |||
| Wheel size rear | |||
| Tyres front | F70-14 | ||
| Tyres rear | F70-14 | ||
| Brakes F/R | Dr/Dr | ||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Gearbox | 3 speed automatic | ||
| Top gear ratio | |||
| Final drive ratio | |||
| general | |||
| Carfolio.com ID | 121 | ||
| Production total | 17914 | ||
| Model code | |||
| RAC rating | 59.7 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1968 Plymouth GTX Hardtop added 2000-01-02. Last modified 2013-02-28. |
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