Capacitor discharge ignition systems at mw we specialise in the design and manufacture of high quality digital capacitor discharge ignition systems suitable for use in all applications from street to f1 where reliability is of utmost importance. Cdi is one of the earliest forms of electronic ignition used in cars. Capacitive Discharge Ignition Diagram Capacitor Discharge Ignition System Cdi System Ignition System Here the ignition is provided by the capacitor charge. Ignition capacitor discharge . Minimal equipment is needed to perform this test properly. It is more complex and expensive than the inductive discharge ignitions used on most modern cars which ar. It was originally developed to overcome the long charging times associated with high inductance coils used in inductive discharge ignition systems making the ignition system more suitable for high engi...