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Discusión y preguntas relacionadas con el curso Fundamentos del cableado de deportes de motor
= Hilos resueltos
Trying to build a concentrically twisted harness for a Vtwin motorcycle engine using a Fuel Tech FT600 as dash / ECU.
Was curious if it will create excess noise throughout my harness if I have the relayed switch power to my Smart Coils, injectors and their corresponding grounds wrapped concentrically into the bundle? Should I run them separate in a different bundle?
The Crank and Cam sensors are in shielded sheathing but the Can bus is just a simple twisted pair. I have these as the core. Your class stated to put the largest wires in the center so that would make my 18 AWG and 16 AWG required to power my Smart Coils and injectors to be wrapped around the sensitive signal wires.
Hey Jacob,
I honestly wouldn’t expect it to be an issue in your case.
Your crank and cam signals are already shielded twisted pairs, and CAN is naturally pretty resistant to noise when twisted properly. It’s very common in concentric harnesses to have injector and coil power wiring bundled in with the rest of the loom.
The larger wires being toward the center is mostly a mechanical thing rather than electrical, they’re just stiffer and easier to build around that way.
That said, smart coils and injectors are definitely some of the noisier circuits in the harness, so if you wanted to go the extra mile you could separate them into their own branch. Not really mandatory though if your shielding, grounding, and twist rates are all done properly.
