MSD Timing Controls are designed so engines with locked out timing or crank triggers can take advantage of an ignition curve. The weights and springs inside your existing distributor are removed and the mechanical advance is locked out so the timing is controlled entirely by the MSD Timing Control. By controlling the ignition electronically, the timing curves can be set faster, more accurately, and with more adjustability than mechanical advances. The Timing Controls provide reliable operation throughout the RPM range, and must be used with an MSD 6, SCI, 7, 8, or 10 series ignition control. This timing computer has a pre-programmed timing curve that eliminates the need for a mechanical advance. When you start the car, the Timing Computer retards the timing 20� from the set mechanical timing. This provides easy starting and smooth idle. The timing begins to advance when the engine speed reaches 1,000 rpm and continues until 3,000 rpm when the total timing is reached. The timing computer also has a separate high speed retard circuit. This allow you to activate a retard amount via a switch to retard the timing during times of nitrous or high rpm. The retard amount is adjustable with plug-in modules and 2�, 3� and 4� modules are supplied. Available in programmable model for timing adjustments within a 1/2 degree.
