spark advance

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Spark advance

Early automobiles had a spark control that allowed the timing of the spark with respect to the position of the piston to be manually adjusted. Retarded too much, the engine would not run well at high speeds. Advanced too much and the engine would fire too soon and kick while being cranked. This sometimes resulted in a broken arm.
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Noun1.spark advance - the timing of ignition relative to the position of the piston in an internal-combustion engine
timing - the time when something happens
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Spraying fuel directly into the combustion chamber reduces the temperature of the compressed mixture as the fuel evaporates, which enables a higher-compression ratio, allows for more spark advance, and reduces fuel consumption" said Anderson.
Baytech's engine calibration software provides optimized closed-loop fuel control, spark advance and other engine parameters.
This unique feature improves the air/fuel charge conditions in the combustion chamber, allowing greater spark advance at higher loads and engine speeds.