Thread: Location of wiring harness firewall exit holes

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So the frame rail routing is what is keeping the firewalls so clean and free from wiring clutter. Thanks for the suggestions. Anyone else have wire routing advice? This is one part of the build where I have no previous experience. I have replaced and repaired factory harnesses, but this is a first time experience.

On my Car I ignored the first rule of Car Building-keep it simple stupid (KISS)! I have a lot of electronics (Power Door locks, Power Windows, remote Door Locks, EFI, redundant Sensors (Fuel press., Oil (2), Coolant (2), Trans Temp, etc.), GPS Speedo, more-

I had (have) the same problem you are experiencing, and I chose to route my Wires through the toe board as well-with all of my EFI harnesses and such, I couldn't put them through a port (waaay too many), so I took some Belting and aluminum sheet and made a "port" to fit the toeboard outline and used the belting to seal the Harnesses (hope that makes sense) and, I used nutserts to hold it down-

It completely seals my Floor (and, being the Aluminum is polished,
it looks reasonably well)-hope this helps (if you have a lot of Wiring like me)-