This vehicle has a 2 door roadster type body with a front mounted engine driving through the rear wheels.
Its engine is a naturally aspirated petrol, 1.5 litre, double overhead camshaft 4 cylinder with 2 valves per cylinder. This powerplant produces 108 bhp (110 PS/81 kW) of power at 5750 rpm.
The power is delivered to the wheels through a 4 speed manual transmission.
The HRG Twin Cam Prototype weighs a stated 737 kg at the kerb.
It is said to be able to achieve a top speed of 193 km/h, or 120 mph.
Full specs
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| bodywork | |||
|---|---|---|---|
| Body type | 2 seater roadster | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2438 mm | 96 inches | |
| Track/tread (front) | 1219 mm | 48 inches | |
| Track/tread (rear) | 1219 mm | 48 inches | |
| Length | 3835 mm | 151 inches | |
| Width | 1473 mm | 58 inches | |
| Height | |||
| Ground clearance | 178 mm | 7 inches | |
| length:wheelbase ratio | 1.57 | ||
| Kerb weight | 737 kg | 1625 lb | |
| Weight distribution | |||
| fuel tank capacity | 54.6 litres | 12 [14.4] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | |||
| Engine code | |||
| Cylinders | Straight 4 | ||
| Capacity | 1.5 litre 1500 cc (91.536 cu in) |
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| Bore × Stroke | 73 × 89.6 mm
2.87 × 3.53 in |
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| Bore/stroke ratio | 0.81 | ||
| Valve gear | double overhead camshaft (DOHC)
2 valves per cylinder 8 valves in total |
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| maximum power output (Nett) |
110 PS (108 bhp) (81 kW) at 5750 rpm |
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| maximum torque (Nett) |
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| Specific output (Nett) |
53.7 kW/litre 73 ps/litre 72 bhp/litre 1.18 bhp/cu in |
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| Engine construction | |||
| Lubrication | |||
| compression ratio | 8.8:1 | ||
| Fuel system | 2 So carbs | ||
| bmep (brake mean effective pressure) | |||
| Maximum RPM | |||
| crankshaft bearings | |||
| Engine coolant | Other | ||
| Unitary capacity | 375 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | N | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | |||
| Acceleration 0-60mph | 9.6 s | ||
| Acceleration 0-100km/h | |||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | |||
| Standing kilometre | |||
| Maximum speed | 193 km/h (120 mph) | ||
| Power-to-weight ratio | Higher is better 148.58 PS/tonne (1000 kg) 0.15 PS/kg 109.27 kW/tonne (1000 kg) 0.11 kW/kg 146.54 bhp/tonne (1000 kg) 0.15 bhp/kg 0.07 bhp/lb |
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| Weight-to-power ratio | Lower is better 9.15 kg/kW 15.29 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.TL. | ||
| Rear suspension | I.TL. | ||
| Wheel size front | |||
| Wheel size rear | |||
| Tyres front | 5.25-16 | ||
| Tyres rear | 5.25-16 | ||
| Brakes F/R | |||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Gearbox | 4 speed manual | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 4.11 | ||
| general | |||
| Carfolio.com ID | 60280 | ||
| Production total | |||
| Model code | |||
| RAC rating | 13.2 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1955 HRG Twin Cam Prototype added before December 1995. Last modified 2013-02-28. |
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