Comparison Of Magneto and Coil Ignition System

1. Simplicity :

A coil system requires greater attention against possible defects because the wiring is quite complicated. On the other hand, the wiring of a magneto ignition system is comparatively simple and it forms a compact unit.

2. Cost :

Due to less precision work, the manufacturing cost in coil ignition system is less than that in magneto Ignition.

3. Starting and Low Speed Operation :

At the time of starting and at the low speeds, the strength of the spark in magneto ignition is low while a good spark is given by the coil ignition.

4. Strength of the spark at high speeds :

With the increase in speed, the strength of spark given by the magneto ignition system increases but it decreases in the case of coil system. Therefore, the coil system ignition is unsuitable for high speed racing cars and aero planes.

5. Dependence on battery and charging dynamo :

The operation of the coil ignition system is greatly influenced by the condition of the battery and charging dynamo. If a car stands for a few weeks and its battery gets discharged, it becomes difficult to start the engine even by hand cranking. But there is no such difficulty experienced in magneto ignition system which is more reliable.

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