1946 Allard J1

Allard J1 is a car that has a 2 door roadster type body with a front positioned engine driving through the rear wheels. It's powered courtesy of a naturally aspirated engine of 3.9 litre capacity. This unit features overhead valve valve gear, 8 cylinder layout, and 2 valves per cylinder. It produces 100 bhp (101 PS/75 kW) of power at 3800 rpm, and maximum torque of 305 N·m (225 lb·ft/31.1 kgm) at 2500 rpm. The engine delivers its power through to the wheels by means of a 3 speed manual gearbox. With a stated weight at the kerb of 1143 kg, the Allard J1 can dispense with the 0-60 mph yardstick in 14.25 seconds and the quarter mile from rest in 20 seconds. It is claimed to achieve a top speed of 137 km/h or 85 mph.
Full specs

Body type
2 door roadster with 2 seats
Length
3683 mm
Weight
1143 kg
Engine type
naturally aspirated petrol
Engine size
3.9 litre
Cylinders
8, V
Power
101 PS / 100 bhp / 75 kW @ 3800 rpm
Torque
305 Nm / 225 ft.lb / 31.1 kgm @ 2500 rpm
Acceleration
0-60 mph 14.25 s
Top speed
137 km/h / 85 mph

1946 Allard J1 specifications

1946 Allard J1 data
bodywork
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Body type	2 seater roadster
Number of doors	2
Designer
dimensions & weights
Wheelbase	2438 mm	96 inches
Track/tread (front)	1422 mm	56 inches
Track/tread (rear)	1321 mm	52 inches
Length	3683 mm	145 inches
Width	1473 mm	58 inches
Height	1500 mm	59.1 inches
Ground clearance
length:wheelbase ratio	1.51
Kerb weight	1143 kg	2520 lb
Weight distribution
fuel tank capacity
aerodynamics
Drag coefficient
Frontal area
CdA
Powertrain
engine type	naturally aspirated petrol
Engine manufacturer
Engine code
Cylinders	V 8
Capacity	3.9 litre 3917 cc (239.03 cu in)
Bore × Stroke	80.96 × 95.25 mm 3.19 × 3.75 in
Bore/stroke ratio	0.85
Valve gear	overhead valve (OHV) 2 valves per cylinder 16 valves in total
maximum power output	101 PS (100 bhp) (75 kW) at 3800 rpm
maximum torque	305 Nm (225 ft·lb) (31.1 kgm) at 2500 rpm
Specific output	19 kW/litre 25.9 ps/litre 25.5 bhp/litre 0.42 bhp/cu in
Specific torque	77.87 Nm/litre 0.94 ft·lb/cu³
Engine construction
Lubrication
compression ratio	7.5:1
Fuel system	1 So carb
bmep (brake mean effective pressure)	978.5 kPa (141.9 psi)
Maximum RPM
crankshaft bearings
Engine coolant	Water
Unitary capacity	489.63 cc
Aspiration	Normal
Compressor	N/A
Intercooler	None
Catalytic converter	N
performance
Acceleration 0-80km/h (50mph)
Acceleration 0-60mph	14.25 s
Acceleration 0-100km/h
Acceleration 0-160km/h (100mph)
Standing quarter-mile	20 s
Standing kilometre
Maximum speed	137 km/h (85 mph)
Power-to-weight ratio	Higher is better 88.71 PS/tonne (1000 kg) 0.09 PS/kg 65.24 kW/tonne (1000 kg) 0.07 kW/kg 87.49 bhp/tonne (1000 kg) 0.09 bhp/kg 0.04 bhp/lb
Weight-to-power ratio	Lower is better 15.33 kg/kW 25.6 lb/bhp
fuel consumption
Fuel consumption
universal fuel consumption (calculated from the above)
litres/100km
km/litre
UK MPG
US MPG
Carbon dioxide emissions
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
Rear suspension
Wheel size front
Wheel size rear
Tyres front
Tyres rear
Brakes F/R
Front brake diameter
Rear brake diameter
Braked area
Gearbox	3 speed manual
Top gear ratio	1
Final drive ratio	4.11
general
Carfolio.com ID	52921
Production total
Model code
RAC rating	32.5
Insurance classification	No information available
Tax band	No information available
1946 Allard J1 added before December 1995. Last modified 2013-02-28.