‘ The original SU carburettors are replaced with throttle bodies that mimic their appearance but are controlled by a modern engine management system’
The Lancefield is one of Alvis’ s exquisitely-finished continuation cars
Despite their historical fidelity, these powertrains are built to start on the button, be driven eagerly and comply with modern emissions standards. This includes the integration of electronic management and tighter machining tolerances, with engines fully mappable for finely-tuned performance and efficiency. Running a catalytic converter was a nonnegotiable but required precise control of the air-to-fuel ratio, forcing a switch to closed-loop fuel injection. While not designed with increased power in mind, improvements in drivability, economy and emissions are natural benefits of using modern materials and systems, yielding a more refined
‘ The original SU carburettors are replaced with throttle bodies that mimic their appearance but are controlled by a modern engine management system’
yet period-correct engine. Interestingly, when the project was first evaluated, the combustion chamber design already offered a clean burn, underlining how advanced and wellengineered the cars were in period.
Even with many original components, the engines in Alvis’ s continuation cars meet modern emissions standards
48 The Engine Rebuilder Issue 03