Wire harness thru firewall ideas ??
 

How have you put your efi / engine wiring harness thru fire wall ? I liked to see some pics plese . Engine will be LSx .

The LT5 motor I am using has 96 wires coming from it to make it run correctly, (16 nozzles, that's 32 wires alone!). I went to a Pull-A-Part wrecking yard and found a large wire conduit from the driver's door of a large car (A Mercury I believe) that the wires for the windows, speakers, door locks, etc go through. I used a hole saw and mounted it low on the firewall above the transmission. It can't be seen. Just remember to feed the wires through it as you install the motor or you will never get them into the opening.

AAW has a 22 pin firewall connector available. not sure if that is enough but one option. Another option would be a MIL-SPEC cannon plug.

Mike

I'm going with the Mil-spec connectors. 2, side by side. I think one is around 40 pin and the other is around 60 pin. They twist and lock together. Not cheap but very nice and solid connection with no worries.:thumbsup:

I took my harness out through the trans tunnel. The area right after the firewall ends.

Thanks Guys, good comments again:cheers: Jeff you have raised the bar up to the sky with details:bow:

:woot:

Problem with the AAW bulkhead is there is no 10 / 12 gauge pins. Mil spec is nice, but we do a lot of them exactly like Steve said, trans tunnel at firewall trans tunnel union

I used a MegaSquirt fuel injection controller for my Camaro. I ran the wires through the bulkhead that all the other wires run through. I bought a Painless wiring harness (before I knew about AAW, will probably try them on the current project) which had just enough open spots in the bulkhead to connect in the fuel injection wiring. Worked out good for me, but wouldn't have if the fuel injection setup would have been sequential instead of batch. Another option that I have thought about would be to get another bulkhead out of a late model car and cut the hole for it. Wouldn't need the fuse box part of it, but would be a some what clean install having it look "factory".

Thats were we try to run them through.:thumbsup:

I have plans to do something like the bottom center pic in this link.
http://www.wiresandpliers.com/harnesses.html