SU Carburettor Tuning and Rebuild

The Jaguar XK engine is, of course, synonymous with the venerable and highly efficient SU Carburettor. They were the standard production carburettor favoured by Jaguar from 1948 to the late 1970s (apart from a brief and unhappy flirtation with Stromberg). Weber 45 DCOEs are also frequently used in competition to obtain extra performance.
The Jaguar E-Type – in both 3.8 and 4.2 Litre forms – is forever associated with its impressive line-up of no less than Three SU Carburettors, visually stunning and delivering outstanding performance. SUs are wonderful for both Road and Track. Intimate knowledge is needed however to extract the greatest benefit.
WinSpeed has in-depth knowledge of the SU carburettor whether it is total rebuild or fine tuning and are very much SU Specialists for Surrey, Hampshire, Sussex and the South East. So frequently we receive cars that are running like dogs only to transform them with a rebuild and some deft needle-work!
Weber Carburettor Tuning and Rebuild

Weber Carburettors, however, were Jaguar`s choice for the 1953 Le Mans Team C-Types; the later D-Types and the Lightweight E-Types. Webers have also been the choice of privateers on both the race track and the open road. They possess a certain mystique.
WinSpeed prides itself in understanding the `Black Art` of tuning Weber Carburettors and are very much Weber Specialists for Surrey, Hampshire, Sussex and the South East. So frequently misunderstood, it takes years of experience to master the `gut instinct` required to make Weber Carburettors really perform, to ensure that wonderful progressive delivery of power (accompanied by their distinctive induction `roar`!)