MGB Roadster

Or “The Little Green B”

Launched in September 1978 the smooth lines of the new 1798cc MG caused quite a sensation when the car first appeared. The ’B’ had a shorter wheelbase than the MGA which it replaced and an altogether more squat appearance thus producing a sports car which was immediately attractive to the eye – and many decades later it has remained a timeless design.

MGB Technical Specification

  • Number of cylinders: 4 
  • Main bearings:
  • Capacity: 1798cc 
  • Bore and Stroke: 80.26mm x 88.90mm 
  • Valve gear: Overhead 
  • Compression ratio: High: 8.8:1 Low: 8.0:1 
  • Max Power: 94bhp @ 5,500rmp (from 1964 95bhp @ 5,400rpm) 
  • Max Torque: 107lb/ft @ 3,500rpm (from 1964 110lb/ft @ 3000rpm) 
  • Carburation: Twin SU HS4 
  • Transmission Type: 4 speed with overdrive 
  • Clutch: Single plate dry, hydraulically operated 
  • Suspension: Front: coil and wishbone. 
  • Rear: live axle with leaf springs. 
  • Dampers: Armstrong lever arm front and rear. 
  • Steering: Rack and pinion. 
  • Performance 0-60mph: 12.1 secs 
  • Fuel consumption: Approx 23mpg

MGB Roadster Gallery

Click on a thumbnail below to view the enlargement.

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