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  ERA R4B
 

  Article Image gallery (16) R4B Specifications  
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Country of origin:Great Britain
Produced from:1935 - 1937
Numbers built:13 B-types
Author:Wouter Melissen
Last updated:January 04, 2006
Download: All images

Engine
Configuration Straight 6
Location Front, longitudinally mounted
Construction cast-iron block, aluminium head
Displacement 1,980 cc / 120.8 cu in
Bore / Stroke 62.8 mm (2.5 in) / 107.0 mm (4.2 in)
Compression 6.0:1
Valvetrain 2 valves / cylinder, Double side cams
Fuel feed SU Carburettor
Aspiration Zoller type Supercharger
Power 240 bhp / 179 KW @ 7,500 rpm
BHP/Liter 121 bhp / liter

Drivetrain
Chassis body on box-section frame
Front suspension Porsche trailing arms, transverse torsion bar, hydraulic shock absorbers
Rear suspension live axle, semi-elliptic springs, Hartford friction dampers
Steering Burmann steering box
Brakes Lockheed drums, all-round
Gearbox Wilson preselector 4 speed Manual
Drive Rear wheel drive

Dimensions
Weight 914 kilo / 2,015 lbs
Length / Width / Height N/A / N/A / 1,118 mm (44 in)
Wheelbase / Track (fr/r) 2,438 mm (96 in) / 1,333 mm (52.5 in) / 1,219 mm (48 in)

Performance figures
Power to weight 0.26 bhp / kg

Resources
Suggested reading
  • ERA, a Concise History, by J.R.W. Barker
Useful links

  Article Image gallery (16) R4B Specifications