The Plus Four Plus is a rear wheel drive coupé road car with a front placed engine, produced by Morgan.
Power is produced by an overhead valve, 2.1 litre naturally aspirated 4 cylinder motor, with 2 valves per cylinder that develops power and torque figures of 100 bhp (101 PS/75 kW) at 4600 rpm and 174 N·m (128 lb·ft/17.7 kgm) at 3350 rpm respectively.
A 4 speed manual gearbox transfers the power to the driven wheels.
The claimed kerb weight is 826 kg.
Maximum speed claimed is 177 km/h or 110 mph.
Full specs
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| bodywork | |||
|---|---|---|---|
| Body type | 2 seater fixed-head coupé | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2438 mm | 96 inches | |
| Track/tread (front) | 1207 mm | 47.5 inches | |
| Track/tread (rear) | 1245 mm | 49 inches | |
| Length | 3860 mm | 152 inches | |
| Width | 1550 mm | 61 inches | |
| Height | 1295 mm | 51 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.58 | ||
| Kerb weight | 826 kg | 1821 lb | |
| Weight distribution | |||
| fuel tank capacity | |||
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | Triumph | ||
| Engine code | |||
| Cylinders | Straight 4 | ||
| Capacity | 2.1 litre 2138 cc (130.469 cu in) |
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| Bore × Stroke | 86 × 92 mm
3.39 × 3.62 in |
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| Bore/stroke ratio | 0.93 | ||
| Valve gear | overhead valve (OHV)
2 valves per cylinder 8 valves in total |
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| maximum power output | 101 PS (100 bhp) (75 kW) at 4600 rpm |
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| maximum torque | 174 Nm (128 ft·lb) (17.7 kgm) at 3350 rpm |
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| Specific output | 34.9 kW/litre 47.4 ps/litre 46.8 bhp/litre 0.77 bhp/cu in |
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| Specific torque |
81.38 Nm/litre
0.98 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | |||
| compression ratio | 9:1 | ||
| Fuel system | 2 SU carbs | ||
| bmep (brake mean effective pressure) | 1022.7 kPa (148.3 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 5 | ||
| Engine coolant | Water | ||
| Unitary capacity | 534.5 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | N | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | |||
| Acceleration 0-60mph | 12 s | ||
| Acceleration 0-100km/h | |||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | |||
| Standing kilometre | |||
| Maximum speed | 177 km/h (110 mph) | ||
| Power-to-weight ratio | Higher is better 122.75 PS/tonne (1000 kg) 0.12 PS/kg 90.28 kW/tonne (1000 kg) 0.09 kW/kg 121.07 bhp/tonne (1000 kg) 0.12 bhp/kg 0.05 bhp/lb |
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| Weight-to-power ratio | Lower is better 11.08 kg/kW 18.5 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 | |||
| Wheel size rear | |||
| Tyres front | |||
| Tyres rear | |||
| Brakes F/R | Di/Dr | ||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Gearbox | 4 speed manual | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 3.73 | ||
| general | |||
| Carfolio.com ID | 57574 | ||
| Production total | 26 | ||
| Model code | |||
| RAC rating | 18.3 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1963 Morgan Plus Four Plus added before December 1995. Last modified 2013-02-28. |
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