New MSD Ignition Boxes - Old Dog, New Tricks

MSD has been making these iconic red ignition boxes since the early ’80s. Since then hundreds of thousands of these units have found their way onto everything from street cars to serious racing machines.MSD has been making these iconic red ignition boxes since the early ’80s. Since then hundreds of thousands of these units have found their way onto everything from street cars to serious racing machines. The classic 6A box is an entry-level upgrade that can be triggered by breaker points, a magnetic pickup, or an electric amplifier. It’s a vast improvement over stock, and especially helpful when the combustion chamber becomes a crazy place with the addition of compression and turbulence like from a power adder. These boxes convert your ignition system to capacitive discharge ignition (CDI). It was developed because the factory inductive discharge ignitions (IDI) have a long charge time, or dwell, that makes high rpm spark dim and inconsistent. All of MSD’s ignition control boxes take advantage of the quick spark turnaround of CDI. A step up from the 6A, is the 6AL, which has the addition of a rev limiter.


Photo Gallery: New MSD Ignition Boxes - Chevy High Performance Magazine

Photo Gallery: New MSD Ignition Boxes - Chevy High Performance Magazine


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