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R8 Coil wiring

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Pin 4 is on the left, pin 1 on the right.  

Pin 4 is the main power ground so needs to be decent sized wire.  Pin 2 is signal ground so can be smaller.  Ground both to cyl head.

Pin 3 is the ign signal from ECU.

Pin 1 is +12V, again needs to be decent wire.  

Dont give these too much dwell, they pull about 16A at 2.5ms, I usually stick around 1.8ms which is about 8A.



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5 hours ago, 928sg said:

Adam, Can you add recommendations on the wire gauge?

For the main power/ground I have used 18AWG tefzel, but as I said above Im only running them at 8A peak.  If you are a high boost turbo you may want to go to 16AWG.

If using Tefzel wire, 18AWG is good for about 9A, 16AWG about 12A.  Low temp PVC insulated wire would need to be bigger.

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