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Rotary Engines


Perfect Power Articles.


The MAZDA rotary (13B) engine has found many friends, because of its power and weight.

The PRS system can handle the two-stage rotary engine. The leading spark timing can be adjusted separately. For details consult the factory.

The unit counts the teeth of the 13B distributor and issues leading and lagging ignition pulses at the correct times. The lag time can be programmed, but it cannot be mapped. The total ignition is mapped.

The PRS manual contains rotary timing and installation diagrams.

The PRS is not made anymore, but we have stock for 13B applications. The XMS doesn't operate a rotary engine!