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Old 01-03-2016, 06:24 PM   #1
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Default COP wire size

When making your own harness, what gauge wire should I use? Going on 1.6l, soldering the wires on the ignitor pins. Should I use 18g for trigger and tach wires and 14g for power and ground? Or just use the same gauge throughout? Thanks.
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Old 01-03-2016, 06:46 PM   #2
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I used 16gauge throughout. It works fine.
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Old 01-03-2016, 07:08 PM   #3
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Also how are we making those 2/4 wire junctions? Just solder and heat shrink or do they make a special connector? Like the ground for instance, you have one wire coming from the ignitor, then it splits to each coil ground and another ground on the head.
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Old 01-03-2016, 07:11 PM   #4
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Don't solder wires together. Thats how wires break. I use uninsulated crimp connectors with heatshrink. Shove 2 in one end 1 in the other.
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Old 01-03-2016, 07:18 PM   #5
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Old 01-03-2016, 07:19 PM   #6
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Old 01-03-2016, 07:32 PM   #7
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Awesome, thanks!
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Old 01-03-2016, 07:46 PM   #8
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You guys will likely frown on this but over the last couple of years (and after multiple broken soldered connections in our high vibration environments) I have started stripping, twisting and heat shrinking my connections (i.e. no connectors and no solder) wherever it is physically possible. Since starting this I have experienced no joint failures.

Just my 2c YMMV.

Last edited by BarbyCar; 01-03-2016 at 07:47 PM. Reason: typo
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