Avoiding sharp edges
Tidy wiring is for more than just looks, it can help you with preventing faults if you secure the wire loom well. And it can help with engine removal and reinstallation, as well as troubleshooting and longevity. Route the wire away from heat, secure it in a loom and it will most likely look neat and well put-together. And lastly, you don't want one wire extremely tight and the rest of them loose.
Concentric twisting the wires is pointless in my opinion. I believe there are situations where it has its place, but when you're tracing wires out to find the end, it's impossible with a concentric twist setup. I won't deny that it looks tidy, but I like functionality and being able to trace a wire out if I need to is important to me.
Quick disconnect deutsch connectors.
I love these connectors! For example, on a 2JZ or 1JZ engine, you can wire 6 individual coils with power and ground through one 8 pin DTP connector. This allows you to disconnect it when performing a Haltech update so your coils don't burn out.
You can also wire in your 6 fuel injectors to another 8 pin connector along with the power wire, or use a 10 pin connector as I did that also has a fuel pressure sensor wiring. If you ever need to remove your entire manifold with the injectors you'll potentially be able to leave it assembled as my picture shows. Do the same for your TPS, Coolant temp, and other electronics around the engine like the alternator, and you'll have an easier time either troubleshooting OR disconnecting all of them to remove your engine if you need to.
Deutsch DTM are used for _____ and DTP are used for power. Different gauge pins are used in different connectors. Coils would need DTP, sensors and other small gauge wires can use DTM.
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