Reply to "FI Ignition"

roverltdMember

One of the benefits of using the ECU to manage the spark is the ability to tune out mid-range advance. One of the hardest things to work around is called "low speed high load bping". Think of this as lugging the engine. The load is high but you are in too low of a gear. If an engine will ping it will be in this range. With the ECU you can specifically retard the timing in the section of the MAP/RPM map to back out the ping.

With a mechanical advance things are linear more RPM more Advance. With a ECU the advance can be increased or decreased at any RPM band.

2/2/078:53 AM

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