infernosg's S5 N/A Build

[infernosg]

Originally Posted by C. Ludwig

The way you have the trigger wires routed right across the alternator and, presumably, right under or over where the ignition leads will lay is asking for noise issues. No reason not to run those right down the middle of the engine to avoid extra length and noise from the alternator and ignition.

This is definitely something that has been bugging me. I had that wire placement from before I relocated the alternator and I was going to mount the coils to the strut tower. The trigger wires enter the engine bay on the driver's side so I'm going to try to run them up over the engine from the oil filter side. I'm not sure if that'll be shorter or not but it'll keep the wires away from the alternator and spark plug leads. If I do need to extend the trigger wires is there a "best way" to do it? I've never dealt with shielded wire before.

[RETed]

Agreed with C. Ludwig here about the alternator...
The alternator actually runs AC - alternating current - internally and then runs through a rectifier to produce the DC that the vehicle can use.
It's the AC that causes all the headaches in terms of RFI.

In terms of dealing with the shielded wiring...
Cheap way is to use aluminum foil (on the junctions).
You can then tape over it with electrical tape so it doesn't look as bad.
They do make metallized (shielding) tape for a step up from aluminum foil.


-Ted