Daimler Double Six Sleeve Valve V12 saloon de luxe

The Daimler Company Limited of Coventry, England between 1926 and 1938 in four different sizes for their flagship cars.

Engine

7.1-litre Double-Six 50

    

This monster engine was designed by consultant Chief Engineer L H Pomeroy (1883-1941) to achieve high power with quietness and, particularly, smoothness.

Pomeroy made the engine by taking the cylinder blocks of two existing 25/85 hp Daimler engines and putting them on a common crankcase.

Pomeroy was to be appointed managing director in 1929.The same design was produced in different sizes depending on the different engine displacements.

Announced 15 October 1926 and observed by The Observer's motoring correspondent to be Britain's first twelve-cylinder car engine. Bore and stroke 81.5 mm x 114 mm gave a swept volume of 7136 cc.

The result was an engine which idled at 150 rpm and ran with uncanny silence "the only audible sound made by a Double-Six (if you opened the bonnet and went right up to it) was the almost imperceptible tick as the ignition points opened and the faint breathing of the carburettor"

Chassis.

Dimensions of standard saloon de luxe:

Length 223in (5,664 mm)

Width 76in (1,930 mm)

Height 82 in (2,083 mm)