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ls engine harness


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#1 Joe

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Posted 29 November 2023 - 08:52 PM

Hi Guys,

 

 

Where is the best location to drill a 50-diameter hole in the firewall so the LS harness is more concealed?

 

Cheers..

Joe

 

 



#2 76lxhatch

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Posted 30 November 2023 - 03:47 AM

I have it under the blower housing, not exactly concealed but I think fairly neat. If you go below the top of the chassis rails it becomes too low inside the car.

20230721_164505.jpg

 

If you want it hidden then there is room to exit the cabin under the guard, but you still need to find ways to get the required wiring into the engine bay from there.

20200527_150658.jpg



#3 Joe

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Posted 30 November 2023 - 08:11 AM

Thanks mate. Appreciate your reply



#4 Rockoz

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Posted 30 November 2023 - 10:01 AM

You can go a much smaller hole with a bit of extra work.

You could easily go down to a 25mm hole.

Just label the wires and depin the connectors.

I mounted my PCU externally so went for a slightly different setup as it would be exposed.

I ended up with a 32mm hole and compression gland to keep the moisture out.

 

Cheers

 

Rob



#5 Bigfella237

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Posted 30 November 2023 - 10:19 AM

Keep in mind that if you go with the inner guard option you'll need to make sure it's extremely waterproof as spray will be flung off the tyre with reasonable force when driving in the rain (not to mention dirt, mud, rocks, roadkill guts, pieces of shredded tyre, and so on)!



#6 grumpy xu1

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Posted 30 November 2023 - 12:18 PM

There would be 20 videos on YouTube minimum as to what you actually need to run an ls engine. Assuming that you get rid of the vats, half of the wires are gone already. It won't end up much bigger than your original harness. As Rob stated, you can label & de pin. There is even YouTube videos or google images of the numbering on the ecu ect so you can run the wires to the correct item. Someone in Australia used to sell all the correct electrical fittings new, so you can run like ls1 engine, ls3 fuel pump ect. Should make life way easier & you can run the parts that you need ect. Hopefully if you are running an ls1, it's vx or later, with the ls6 injectors and intake manifold.

#7 Joe

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Posted 30 November 2023 - 03:24 PM

Thank you guys for the reply.




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