The IGN-1A Inductive Smart Coil is dimensionally similar to the MSD 8232 CDI coil. The hole spacing is similar but the IGN-1A has its connector on the bottom, opposite of the electrode while the MSD 8232 has the connector on the same side as the electrode.
The IGN-1A inductive smart coil has a built-in igniter (switching translator), which eliminates the need for an external ignition module. Since everything is done within the coil, it creates a lot of heat and a heat sink was added to the housing to help dissipate this internal heat. However, the performance of these coils is greatly impacted by external heat soak and their own internal heat generation. In contrast, the MSD CDI coil is a much simpler device that doesn’t suffer from the same heat-related performance degradation.
The IGN-1A Smart Coil has a 5-pin connector, for the trigger signal, sensor ground, 12V+ high current power, high current battery ground, and common ground for the engine block. Meanwhile, the simple MSD CDI coil has a 3-pin connector for coil power, coil ground, and engine ground.
The MSD CDI PRO 600 revolves around the Capacitive Discharge box, using the coil packs as simple step-up transformers, taking the high voltage pulse (520 volts) from the CDI capacitor and boosting it to over 50,000 volts to the spark plugs. The IGN-1A smart coils are far more compact and do everything internally, taking the car’s 12-volt power supply and internally generating 40-50-80,000 volts depending on dwell time, engine rpm, heat, etc…
I liked the mounting position of the IGN-1A coils and designed a similar mounting bracket for the MSD CDI coils.
3D printing the mounts out of ABS turned out great.
2 comments
Is the msd pro 600 cdi capable of being used for a 4 rotor ?
That’s a great question. Unfortunately no one knows until someone tries it. There was very little information on the ability for the PRO 600 to work on a rotary since the guy who designed it no longer works for the company and there’s not enough information on the circuitry (surprisingly). In theory it should be able to…