Homepage › Technical Specifications of Cars › Alfa Romeo › 20/30 HP ES Sport

1921 - Alfa Romeo - 20/30 HP ES Sport

Technical Specs of This Model
1. 20/30 HP ES Sport 1921
General Information
Make Alfa Romeo
Model 20/30 HP ES Sport
Production Year 1921
Country
Designer
Production Number 124
Model Code
Model Family
Chassis and Dimensions
Chassis Type 4/5S SAL
Number of Doors 4
Wheelbase 2800 mm     (110,2 in)
Front Track 1450 mm     (57,1 in)
Rear Track 1450 mm     (57,1 in)
Length 4700 mm     (185 in)
Width 1780 mm     (70,1 in)
Height 1700 mm     (66,9 in)
Ground Clearance
Length / Wheelbase Ratio 1,68
Weight 1200 kg     (2643,2 lb)
Weight Distribution (front/rear)
Fuel Capacity
Aerodynamics
Drag Coefficient
Frontal Area
Cx
Engine Specifications
Engine Manufacturer Alfa Romeo
Engine Location Front
Engine Alignment Longitudinal
Engine Construction cast iron block
Coolant Type Water
Engine Type SV
Number of Cylinders and Placement S-4
Valves per Cylinder 2    (Total of 8 Pieces)
Engine Displacement 4750 cc     (289,86 cu in)
Bore 102 mm     (4,02 in)
Stroke 130 mm     (5,12 in)
Bore / Stroke Ratio 0,78
Unitary Capacity 1187,5 cc/cylinder    (72,47 cu in/cylinder)
Number of Main Bearings
Compression Ratio 4,45 : 1
Fuel System Type 1 Ze carb
Aspiration Type Normal
Compressor Type -
Intercooler Type None
Catalytic Converter No
Maximum Engine Power 67 HP     (50 kW)
Maximum Engine Power rpm 2600 d/d
Maximum Engine Torque
Maximum Engine Torque rpm
Engine Torque at Max. Engine Power rpm 183,5 N.m    (2600 d/d)
Power / Weight Ratio 55,8 HP/ton    (41,6 W/kg)
Power / Engine Displacement Ratio 14,1 HP/litre    (10,5 kW/litre)
CO2 Emissions
Fuel Consumption
Performance
0 - 80 km/h
0 - 60 mph
0 - 100 km/h
0 - 160 km/h -1 s
80 - 120 km/h (in top gear)
0 - 400 m Acceleration
0 - 1000 m Acceleration
Top Speed 130 km/h   (80,8 mph)
Gearbox and Transmission
Transmission Type 4M
Top Gear Ratio 1 : 1
Final Drive Ratio
Drive Wheels RWD (Rear Wheel Drive)
Handling, Suspension Geometry and Brakes
Steering Type
Steering Turns (lock to lock)
Turning Circle Diameter
Suspension (front) LA.LS.
Suspension (rear) LA.LS.
Brakes (front/rear) -/Dr
Brake Disc Diameter (front)
Brake Disc Diameter (rear)
Wheels (front)
Wheels (rear)
Tyres (front) 820 x 120
Tyres (rear) 820 x 120