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MSD Digital Multi-Retard


MSD Ignition
MSD Digital Multi-Retard

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The new Digital Multi-Retard provides four different stages of retard along with an adjustable start/retard feature - all with no modules! The MSD Multi-Retard uses a high speed RISC micro-controller to direct the timing functions. This RISC processor can make extremely quick adjustments to the timing signals while still keeping accuracy to within 1°. These circuits are thoroughly debounced and isolated for protection against Electro-Magnetic Interference (EMI). There is also a new innovative Magnetic Pickup Compensation circuit added to allow perfect timing with a variety of magnetic pickup triggers. See the sidebar for more information. The Multi-Retard has four separate retard stages, perfect for multi-stage nitrous applications, and they can be activated independently or together for a total sum of retards. Each stage is adjustable from 0° to 9° and the maximum amount of retard is 20°. The Start/Retard feature allows retard timing for ease of starting. Since all engines are different, the unit can be programmed for 5°, 10°, 15° or 20° of retard during starting.



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