The Lea-Francis 2½-Litre is a rear wheel drive motor vehicle, with the engine mounted in the front, and a 2 door convertible/cabriolet bodyshell.
Powering the Lea-Francis 2½-Litre is an overhead valve, 2.5 litre naturally aspirated 4 cylinder powerplant, with 2 valves per cylinder that develops power and torque figures of 125 bhp (127 PS/93 kW) at 5000 rpm and 193 N·m (142 lb·ft/19.7 kgm) at 2500 rpm respectively.
A 4 speed manual 'box transmits the power to the driven wheels.
Its claimed kerb weight is 1170 kg.
It is said to be able to achieve a top speed of 161 km/h, or 100 mph.
Full specs
|
|
|||
| bodywork | |||
|---|---|---|---|
| Body type | 2 seater convertible/cabriolet | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2515 mm | 99 inches | |
| Track/tread (front) | 1334 mm | 52.5 inches | |
| Track/tread (rear) | 1334 mm | 52.5 inches | |
| Length | 4191 mm | 165 inches | |
| Width | 1600 mm | 63 inches | |
| Height | 1372 mm | 54 inches | |
| Ground clearance | 178 mm | 7 inches | |
| length:wheelbase ratio | 1.67 | ||
| Kerb weight | 1170 kg | 2579 lb | |
| Weight distribution | |||
| fuel tank capacity | 68.2 litres | 15 [18] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | Lea-Francis | ||
| Engine code | |||
| Cylinders | Straight 4 | ||
| Capacity | 2.5 litre 2496 cc (152.315 cu in) |
||
| Bore × Stroke | 85 × 110 mm
3.35 × 4.33 in |
||
| Bore/stroke ratio | 0.77 | ||
| Valve gear | overhead valve (OHV)
2 valves per cylinder 8 valves in total |
||
| maximum power output | 127 PS (125 bhp) (93 kW) at 5000 rpm |
||
| maximum torque | 193 Nm (142 ft·lb) (19.7 kgm) at 2500 rpm |
||
| Specific output | 37.3 kW/litre 50.8 ps/litre 50.1 bhp/litre 0.82 bhp/cu in |
||
| Specific torque |
77.32 Nm/litre
0.93 ft·lb/cu3 |
||
| Engine construction | |||
| Lubrication | |||
| compression ratio | 8.7:1 | ||
| Fuel system | 2 SU carbs | ||
| bmep (brake mean effective pressure) | 971.7 kPa (140.9 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | |||
| Engine coolant | Water | ||
| Unitary capacity | 624 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 | 161 km/h (100 mph) | ||
| Power-to-weight ratio | Higher is better 108.32 PS/tonne (1000 kg) 0.11 PS/kg 79.67 kW/tonne (1000 kg) 0.08 kW/kg 106.84 bhp/tonne (1000 kg) 0.11 bhp/kg 0.05 bhp/lb |
||
| Weight-to-power ratio | Lower is better 12.55 kg/kW 20.97 lb/bhp |
||
| 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 | 9.80 m | ||
| Front suspension | I.TB. | ||
| Rear suspension | LA.SE. | ||
| Wheel size front | |||
| Wheel size rear | |||
| Tyres front | |||
| Tyres rear | |||
| Brakes F/R | Dr/Dr | ||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | 1181 cm2 | ||
| Gearbox | 4 speed manual | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 3.64 | ||
| general | |||
| Carfolio.com ID | 62678 | ||
| Production total | |||
| Model code | |||
| RAC rating | 17.9 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
|
1949 Lea-Francis 2½-Litre added before December 1995. Last modified 2013-02-28. |
|||