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1966911
 
Join Date: May 2016
Location: Sarasota fl
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Has anyone rewire their whole 911

Im looking to rewire the whole car got some quotes and they are out of my budget. Any thoughts or tips on this? And the previous person who did work on the car didn't do a very good job the wires are hacked up

Old 07-03-2016, 07:19 AM
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Xray... someone (perhaps a few) in PPF offer complete wire harnesses. Don't know who it is. Hopefully they'll see subject line and chime in. There are also threads in here where Pelicans have documented the process of rewiring a car---excellent reference... and surly resource(s) are to be found therein. Use "Search" tool to dig for threads.
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Old 07-03-2016, 08:42 AM
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1973 911S (since new) RS MFI specs
1991 C2 Turbo
Old 07-03-2016, 09:11 AM
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here you go:
Building SC and Mid Year Engine Harnesses
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1973 911S (since new) RS MFI specs
1991 C2 Turbo
Old 07-03-2016, 09:12 AM
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ROW '78 911 Targa
 
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Are you looking for the harnesses to be rebuilt, or for someone to repair and install?
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Dennis
Euro 1978 SC Targa, SSI's, Dansk 2/1, Bitz kit EFI.
Need a New Wiring Harness? PM or e-mail me. Search for "harnesses" in the classifieds.
Old 07-03-2016, 09:15 AM
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You have thee choices.

Whole new harness.

Re-do what you have. If the insulation is not cracking, this may be the way to go. Get a wiring diagram and spend a week to make it right. Clean each connector, solder and heat-shrink each joint, and eliminate all the extra unused wires.

Or get a used harness and do a combination of the above.
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Gordon
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Old 07-03-2016, 12:11 PM
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Soldering connections isn't always the best option. Many say that a good crimped connector is better.

Soldering often wicks the solder up the wire and stiffens it, making it susceptible to vibration damage and such. Perhaps it makes a more solid or reliable connection. Aircraft wiring requires crimped connections. This is one of the things people in the crimped camp call on.

I don't know which is better and I don't have an opinion on either, just pointing out that there are other ideas and arguments for each. Do your research.
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1987 ROW coupe, Marine blue, with a couple extra goodies.

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Old 07-03-2016, 07:22 PM
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vote for crimping
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Old 07-04-2016, 03:54 AM
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Quote:
Originally Posted by proffighter View Post
vote for crimping
For the spade connectors, that is what the factory used.

However when I suggested soldering, I was thinking about splicing of wires in the harness.

Anyway, there are places where soldering will need to be done, for example the 14 pin plugs in the engine compartment.
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Old 07-04-2016, 10:35 AM
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Wer bremst verliert
 
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Search my Targa rebuild or Supercharged car or the one I am doing now. Painless harnesses suck, there are some pricy but nice stock-looking ones from vendors, or if you want lightweight, reliability and a custom install do it yourself from aircraft-type wiring connectors and fuse/relays.
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Old 07-04-2016, 01:13 PM
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1966911
 
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Some of the wire is stiff and cracking so I figure I pull it all out and redo it all. Plus the other person has stuff splice into other stuff. I want a clean slate to work off
Old 07-04-2016, 03:08 PM
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Updating most of the electrical system - an experiment

I rewired most of the car up in the frunk and tunnel and doors. I stripped a lot of wiring out and came up with my own power distribution scheme (not using the ignition switch as the main distribution point). I wanted reliability and wired it more like an aircraft.

I didn't like what I found in the original wiring while doing it and I am glad I did what I did.

Last edited by SpyderMike; 07-04-2016 at 06:18 PM..
Old 07-04-2016, 06:13 PM
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ROW '78 911 Targa
 
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Not a lot of complexity in the '66. If you understand the schematics and know what you are doing it is relatively easy to repair/replace the existing wiring. Shouldn't take more than 100 hours for a novice to source all the wires, build the harness and install it
Or pay someone to have it made/repaired for you.
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Euro 1978 SC Targa, SSI's, Dansk 2/1, Bitz kit EFI.
Need a New Wiring Harness? PM or e-mail me. Search for "harnesses" in the classifieds.
Old 07-04-2016, 08:55 PM
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1966911
 
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Quote:
Originally Posted by timmy2 View Post
Not a lot of complexity in the '66. If you understand the schematics and know what you are doing it is relatively easy to repair/replace the existing wiring. Shouldn't take more than 100 hours for a novice to source all the wires, build the harness and install it
Or pay someone to have it made/repaired for you.
Yea when I looked it, it's not to hard for and some of the factory connections have been cut out. So this is why I want to make my own
Old 07-05-2016, 04:12 AM
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Timmy2 repaired my cooked front end main power and gauge harness. I removed and reinstalled it myself with his kind guidance. It was a huge job for me because I'm a noob. If you take your time and document and photograph everything including how the cables lay in the chassis it's very doable. If I can do it you can do it too. I used all factory style crimped connectors and heat shrink.
Old 07-05-2016, 05:40 PM
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ROW '78 911 Targa
 
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Quote:
Originally Posted by gazzerr View Post
Timmy2 repaired my cooked front end main power and gauge harness. I removed and reinstalled it myself with his kind guidance. It was a huge job for me because I'm a noob. If you take your time and document and photograph everything including how the cables lay in the chassis it's very doable. If I can do it you can do it too. I used all factory style crimped connectors and heat shrink.
I'll wager you had more than 100 hours in that one!
Your late '80's model Turbo has a lot more to it!
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Dennis
Euro 1978 SC Targa, SSI's, Dansk 2/1, Bitz kit EFI.
Need a New Wiring Harness? PM or e-mail me. Search for "harnesses" in the classifieds.
Old 07-05-2016, 07:09 PM
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timmy2 makes great stuff and helped talk me through a tail light issue. I highly recommend whatever he says.
Old 07-05-2016, 08:02 PM
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FYI - Current OEM best practise is to crimp ONLY when the crimp process has been validated OR crimp and solder if the process is not validated.

Validation usually includes at (a minimum):

1. A tensile pull test
2. Section and polish of the crimp to determine robust wire distribution.
Old 07-05-2016, 09:44 PM
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I would certainly send it to Timmy2, you will have a hard time sourcing the correct color wiring in the quantities for one car. It will end up being cheaper and better.
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1973 911S (since new) RS MFI specs
1991 C2 Turbo
Old 07-06-2016, 09:11 AM
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ROW '78 911 Targa
 
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I have a few wires handy....

One side of my workbench with 26 different color combos, the other side has more...


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Dennis
Euro 1978 SC Targa, SSI's, Dansk 2/1, Bitz kit EFI.
Need a New Wiring Harness? PM or e-mail me. Search for "harnesses" in the classifieds.
Old 07-06-2016, 10:36 AM
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