[Don]

Other race series use FI such as F1, F2, ALMS, Daytona Prototypes ( since 2005 ) , IRL, etc., etc. The issue of shutting down the fuel supply was addressed, don't have the details.


" Freescale Semiconductor and McLaren Electronic Systems to develop and integrate fuel injection systems into the NASCAR Sprint Cup Series, targeted for the 2012 season. Freescale will provide the processors for McLaren’s engine control units (ECUs) that will be used to manage the fuel and ignition systems in the engines for all NASCAR Sprint Cup Series cars "

" Yes. All vehicles do. It's not really a switch, per se, but a relay that energizes the fuel pump. When you turn your ignition key, a relay opens to allow your fuel pump to work. The relay is built into several circuits, and if there is no fuel the engine shuts down. This is in case you are in an accident, and smash your vehicle, your fuel pump won't pump gas all over your non-running engine. "