Quick wiring question
Quick wiring question I got a 89 turd gen we are putting a ls1 into and i need to know how long the harness needs to be from measuring the back of the pass side head to the ecu to mount under the dash.
...Personally I am not sure, I am in the beginning stages of my swap. You might be able to find what you need on here...If I were you, I might check the engine swap section on thirdgen.org. There is a wealth of knowledge specific to LSx swaps for third gens.
4' is pretty long, but you'll have to cut a hole in the firewall to get it to fit. To go the stock route behind the fender, it needs to be 7.5' long, measured from the RR corner of the fuel rail
What size did that hole need to be above the frame rail for the ecu plugs? I cant find that write up on that. Did you use some cut vacume line for a grommet?
found the thread but i dont see what size the hole needs to be... i herd 2" in there but no one was certain.
http://www.thirdgen.org/techboard/lt...ing-under.html
found the thread but i dont see what size the hole needs to be... i herd 2" in there but no one was certain.
http://www.thirdgen.org/techboard/lt...ing-under.html
Last edited by Brando5641; Feb 19, 2012 at 10:02 PM.
The trick is getting the connectors through the hole.
There was an existing 1 7/8" diam hole in the firewall. I elongated the bottom, then squared the bottom into a cathedral, so that from side to side is 1 7/8, and top to bottom is 2 1/2".
My harness was reworked by a sponsor. In bending the harness carefully to make it pass through, I managed to break one wire going to the crank sensor. Maybe the wire was broken to begin with.
Whatever the standard harness length is, there was enough to either mount as seen here, or under the dash in a 1st Gen Camaro.
Some drill a hole lower, where the bottom of the heater box would be, to keep the harness out of sight. Since the hole was already there, I decided that invisible was not an issue.
Everything will be dressed up later. Probably two pieces of sheet metal (upper & lower) over the hole.
There was an existing 1 7/8" diam hole in the firewall. I elongated the bottom, then squared the bottom into a cathedral, so that from side to side is 1 7/8, and top to bottom is 2 1/2".
My harness was reworked by a sponsor. In bending the harness carefully to make it pass through, I managed to break one wire going to the crank sensor. Maybe the wire was broken to begin with.
Whatever the standard harness length is, there was enough to either mount as seen here, or under the dash in a 1st Gen Camaro.
Some drill a hole lower, where the bottom of the heater box would be, to keep the harness out of sight. Since the hole was already there, I decided that invisible was not an issue.
Everything will be dressed up later. Probably two pieces of sheet metal (upper & lower) over the hole.
Last edited by gMAG; Feb 21, 2012 at 12:26 AM.
What size did that hole need to be above the frame rail for the ecu plugs? I cant find that write up on that. Did you use some cut vacume line for a grommet?
found the thread but i dont see what size the hole needs to be... i herd 2" in there but no one was certain.
http://www.thirdgen.org/techboard/lt...ing-under.html
found the thread but i dont see what size the hole needs to be... i herd 2" in there but no one was certain.
http://www.thirdgen.org/techboard/lt...ing-under.html
The best way to prevent breaking a wire in the bends is to think about where the bends will go before building the harness and move splices to the strait parts
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Why bother since the box is rather easy to remove, 4-5 10mms on top, plus some 9/32" screws on the top. Slide the drier out and get the last hidden 10mm, then 3 more 10mms from inside the cabin. Out it comes
Why bother since the box is rather easy to remove, 4-5 10mms on top, plus some 9/32" screws on the top. Slide the drier out and get the last hidden 10mm, then 3 more 10mms from inside the cabin. Out it comes
