Aston Martin 11 hp (1921) Specifications

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Return to Main Page ==Specifications==

1921 Aston Martin 11 hp
Max Power 35.5 PS (35 bhp) (26.1 kW) @ 4000 rpm
Specific Output 23.5 bhp/litre0.39 bhp/cu in
Brake mean effective pressure
Max Torque
Specific Torque
Power to weight 46.48 bhp/ton
Max Speed
0-50 mph (80 km/h)
0-60 mph
0-100 km/h
0-100 mph
80-120 km/h (50-70 mph) in top gear
Standing km
Doors 2
Engine Location Front
Engine Alignment Longitudinal
Engine code
Aspiration Normal
Cylinders Inline 4
Engine Capacity 1.5 litre1487 cc (90.742 cu in)SV2 valves per cylinder 8 valves in total
Bore and stroke 66.50 mm x107.00 mm 2.62 in x4.21 in
Compression Ratio
Engine Construction
Engine Lubrication Wet sump
Engine Manufacturer Coventry Simplex
Main crankshaft bearings 3
Compressor type N/A
Intercooler None
Catalytic converter N
Bore/stroke ratio 0.62
Unitary capacity 371.75 cc per cylinder
Fuel System 1 Claudel-Hobson carbuerttor
Gearbox 4 speed manual
Drive Type rear wheel drive
Transmission Ratios: Top
Final Gear Ratio 3.70
Steering Ransome and Marles
Brakes -/Drum
Brake size rear
Braked area
Suspension rear
Wheels rear
Tyres 710 x 90 mm front and rear 710 x 90 mm
Steering Wheel Turns (lock to lock)
Max Turning Circle
Drag Co-efficient
Frontal area Cx
Dimensions and Weight
Overall Length
Overall Width
Overall Height
Wheelbase 2629 mm 103.5 in
Weight distribution (front)
Track Front 1219 mm 48
Ground Clearance
Kerb Weight 753 kg 1660 lb
Fluids and Capacities
Fuel Tank
Fuel Consumption Combined
C02 emissions
Coolant Water
Vehicle Identification Numbers

Paint colours and codes



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