The very first Supercharged 2 Litre, considered the "WORKS prototype".
Used in Lagonda's advertising and press testing!
Chassis number: 0H9711
Engine number: 1459 (2B981)
UK registration: PL1240
Designed by Arthur Davidson, the 2 litre 'four' featured twin camshafts mounted high in the block, operating inclined valves in hemispherical combustion chambers. Power output of this advanced design was a highly respectable 60 bhp.
For the 1929 season, a 'low chassis' Speed model was introduced, featuring revisions to the frame's front end and a higher compression engine fitted with twin carburetors. The Speed model had resulted from the factory's Le Mans effort of 1928, when the 2 Litre driven by Andre D'Erlanger and Douglas Hawkes had finished 11th overall in the 24 hour endurance classic.
A classic example of racing improving the breed, the 'low chassis' 2 litre possessed markedly superior handling characteristics courtesy of its lower centre of gravity. For all its virtues, Davidson's engine was limited by its tortuous induction tracts and in 1930 a supercharged version was introduced to overcome this deficiency.
The 'blower' was mounted vertically in front of the engine, while a 3-litre rear axle beefed up the transmission. A Powerplus supercharger was specified at first but most 'blown' 2 litres came with a Cozette. Thus equipped, a low chassis 2 litre was capable of up to 90 mph.
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