Guy Griffiths Collection, 82 Centurion Road, Brighton, BN1 3LN
Tel: 44 (0)1435 813961

There were a total of about 50 production supercharged Bentleys and another five were developed for racing.

Harry Rose is at the wheel of a genuine ex-Paget team car and Russ Turner’s is a modified production car. Both cars were capable of about a 100 mph and remained smooth and flexible to drive at high speed.

The idea of supercharging the big 4½ litre 4-cylinder Bentley was that of Sir Henry ‘Tim' Birkin and, although W.O. Bentley did not approve of superchargers, it became a production car.

Birkin formed his own racing team, to race the supercharged cars, but these were not as reliable as the standard Bentley team cars.


Supercharged 4½ litre Bentleys

Brighton Speed Trials
11th September 1965


Bentley 4½ litre Supercharged Specification (1930-31)
Engine: 4-cylinder single overhead camshaft 4398 CC (100 x 140 mm) with Roots-type supercharger developing 240 bhp at 4200 rpm.
4-speed. Chassis: Channel-section with front and rear suspension by rigid axles suspended on semi-elliptic leaf springs. Wheelbase: 10 feet 10 inches. Front and Rear Track: 4 feet 8 inches Unladen weight: 36 cwt.

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