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Thread: VAG R8 coil pack harness

  1. #1
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    VAG R8 coil pack harness

    Hi

    I want to try and build my own sub harness for VAG R8 coil conversion but can't seem to find any information of recommended wire gauge. Would AWG18 be enough for the signal wires and AWG 14 for power?

  2. #2
    Guest suixo's Avatar
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    Made mine with 3mm squared for 12v and ground, and 1.5mm squared for signal. It's working perfectly.

  3. #3
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    For signal 0.34-0.5mm2 will be plenty, then 1.5mm2 for power from branching point to coilpacks (both positive and negative), and finally 2.5mm2 from connector(or ground lug for negative) to branching point.
    That's what I did.. although I see many professional shops use quite smaller gauge wires (like 20awg for all wires), not sure how it will hold for them...

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