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docs: update wiring/Ignition_wiring

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Administrator 2020-01-15 09:31:15 +00:00 committed by Josh Stewart
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wiring/Ignition_wiring.md
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title: Ignition Wiring title: Ignition Wiring
description: description:
published: true published: true
date: 2020-01-13T22:35:25.398Z date: 2020-01-15T09:31:11.804Z
tags: ignition, wiring tags: ignition, wiring
--- ---
@ -16,7 +16,7 @@ Whilst this guide does not cover all ignition styles and hardware, it does cover
Wasted spark is a common means of controlling spark that requires only half the number of ignition outputs as there are cylinders, with 2 cylinder being attached to each output. EG: Wasted spark is a common means of controlling spark that requires only half the number of ignition outputs as there are cylinders, with 2 cylinder being attached to each output. EG:
* 4 cylinder engine requires 2 ignition outputs * 4 cylinder engine requires 2 ignition outputs
* 6 cylinder engine requires 3 ignition outputs * 6 cylinder engine requires 3 ignition outputs
* 4 cylinder engine requires 4 ignition outputs * 8 cylinder engine requires 4 ignition outputs
Wasted Spark has the advantage of not requiring any cam signal or input as it does not need to know the engine phase. This is possible by firing the ignition outputs once per revolution and pairing that output to 2 cylinders that are both at TDC (With one cylinder on compression stroke and the other on exhaust) Wasted Spark has the advantage of not requiring any cam signal or input as it does not need to know the engine phase. This is possible by firing the ignition outputs once per revolution and pairing that output to 2 cylinders that are both at TDC (With one cylinder on compression stroke and the other on exhaust)