help needed with wiring

[ashmini]

Hi all once again i am in need help

i have a 1977 911 targa 3.0 turbo wide body

i have a problem with the wiring

the front fusbox is like a birds nest and wanting to sort it out but cannot find i drawing that i can follow could do with on that is idiot prove

also the loom has been cut at the rear of the car so need to reconnect as this is a total mess
thanks to all hope you can help

[s5uewf]

Yikes you are asking a tough question (at least for me). There are several threads here on wiring diagrams, like this one:
http://forums.pelicanparts.com/911-930-turbo-super-charging-forum/364438-1982-930-wiring-diagram.html

I suggest you try the search to bring them up for you. I am not sure if a 77 930 has the same wiring as those you will find in the forum. But I know there are several about the front fuse box and about the engine compartment. Search on relays wiring diagram and engine wiring diagram and fuse wiring etc.

Also, Bentleys has diagrams in their books - none of it is "easy" to read but once you figure out the color codes you should be able to trace each circuit.

I am sure others will chime in with advice, too. Keep us in the loop and likely you will get incremental advice and help as you go step by step.

There are also vendors who supply reproduction harnesses - food for thought

[timc]

I just googled "Porsche wiring diagrams" with excellent returns, so I'd just spend some time searching the internet....

[GregPV]

This site may help. Good luck.
https://www.manualslib.com/manual/392521/Porsche-930-Turbo-Usa-1976-Current-Flow-Diagram.html?page=5#manual. Hope this gets you there.

[911tracker85]

why I am having Dennis (Timmy2) make a complete new harness for my project.

spend years dismantling and restoring a 911 and keep a 40+ yr old wiring harness is just asking for trouble down the road.

good luck.