What Engine, Transmission And Differential Does The Westfield XI Use?
Westfield has designed the XI around the BMC “A” Series 1275cc engine and 4-speed transmission. These are commonly found in both the MG Midget and Austin-Healey Sprite. Westfield has also designed the XI to work with the Midget/Sprite differential in either the 3.9:1 or 4.2:1 ratios. The XI can also be fitted with a more modern Ford Sierra “Type 9” 5-speed gearbox, although the speedometer will need to be recalibrated by a professional. For the re-introduction of the XI, Westfield has redesigned the chassis to accept either the standard Midget 4-speed gearbox, or the Ford Type 9 5-speed gearbox. It is now no longer necessary to specify a chassis for a single gearbox – both will fit perfectly.
