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3/24/2015 4:44 PM  #1


Cost to Wire a Mustang? (updated)

I already have a quote form Dallas Mustang and one from a freelance guy that works out of his garage for wiring up my mustang but I thought I'd fish for similar experiences.

I have a 1966 Mustang 5.0 EFI (1988), T5z.

Currently I have ALL WIRING STRIPPED OUT.  Replaced tail lights, parking lights, dome light, courtesey lights, backup lights, fog lights, MAF, etc.   Basically everything is installed where it should be and more importantly HOW it should be and with the correct pig tails.  So whoever is going to do this is working from scratch.  No need to splice up some junk harness and chase shorts.

The previous harness was a butchered piece of electrical junk from some donor car that had about a mile of electrical tape and lots of shorts and exposed wires.  It's taken a while to remove it all but I'm just about there.  Hence why I'm starting from scratch.

Anyway, any thoughts?  Experiences? Nightmares?

thanks

-----------update-----------------
>>I emailed american auto wire and was told that they don't make an EFI harness.  However, that isn't that big of a deal since the EFI harness and Chassis harness only require one keyed wire and one powered wire.  Also, there is a halfway decent youtube video on installing an AAW harness in a 1965 mustang.  Looked into the Ron Francis and am totally confused.

>>I've yet to read any positive feedback anywhere about the painless harness. That's alarming.  From what I can gather, it's a pretty technical setup meant for the hard core hot rod person who will do it all from scratch.  The biggest negative for me is that their material mentions reusing a lot of existing connectors.  That seems kind of dumb to me b/c part of the reason I'm buying a new harness is b/c my existing harness was so chopped and manipulated, old, and cracking.  Why would I want to reuse anything?  For a $900 harness (most expensive I've seen) you are telling me I have to resue old connectors?  It might be a case where it just has crappy instructions but a good product.  i'll have to go w/ someone else for the EFI harness regardless.

>>leaning towards doing it myself and AAW.  The firewall routing is a concern especially w/ the EFI harness.  My battery is relocated as well.  Wondering how all the lengths will work if stuff isn't in a stock location.

Last edited by TremendousWand (3/26/2015 7:55 AM)


When it comes to electrical work on my ride I ....









 

3/24/2015 4:49 PM  #2


Re: Cost to Wire a Mustang? (updated)

.
my guess, would be around $1,000.00 labor

 

3/24/2015 6:16 PM  #3


Re: Cost to Wire a Mustang? (updated)

I don't know about the Painless EFI harness, but the 'Detail Zone' EFI harness (as sold by Summit Racing) is a walk in the park to install. Especially since you say you have factory pigtails on the lights I'd go with stock repop harnesses, grab a factory assembly manual and wiring diagrams and have at it. I'm fortunate in that my original factory wiring has never been cut up and I haven't had to chase down shorts or open circuits. Good luck!


1965 Mustang 2+2 EFI
 

3/24/2015 6:22 PM  #4


Re: Cost to Wire a Mustang? (updated)

Tough to say.  I think you'd need to figure about $50/hr., so $1,000 gets you 20 hours.  Might be enough depending on the guy's level of experience with similar projects, might be double that.  In general it takes two to three times as long to do something the first time, so if there is expereince it could save you some coin. 

The most time consuming part of dealing with the Painless harness is going to be making all the terminations.  You might consider the cost savings of using a factory style chassis harness and simply adding an auxillary fuse box if you need to add accessories.  I would ask the prospective people what way they would handle it, given their druthers. 

 

3/24/2015 7:28 PM  #5


Re: Cost to Wire a Mustang? (updated)

I had a big response ready to go then I read what Jeff in GA says............X2.  

And, based on discussions with a couple of folks that have used Painless Harness.......They ain't!

BB


"you get what you pay for, good work isn't cheap, and there are NO free lunches...PERIOD!"
 

3/24/2015 7:48 PM  #6


Re: Cost to Wire a Mustang? (updated)

.
Painless wiring = Painful wiring.

 

3/24/2015 8:03 PM  #7


Re: Cost to Wire a Mustang? (updated)

Just do it yourself.  I'm almost finished re-installing the wiring in my 65 and I've done a number of other similar cars.  It's not that hard if you're suing a replacement harness that's actually made for the car, and maybe adding a few more circuits.   


Cheap, Fast, Good:  Pick Any Two
 

3/24/2015 8:51 PM  #8


Re: Cost to Wire a Mustang? (updated)

It all depends on finances as to which way you go, but I will say this.  I saw a 66 convertible v8, auto, car last yr. and it was burned 3/4 of the way.  Guess which part of the car was still good?  The front end.
The car had an electrical fire in dash, it was really sad to see.  The car looked like a really good car judging from the front.  I know that's a downer, but I say it with the best of intentions.  Nothing worse than spending $15, 20, 25k in a car only to have an electrical fire take it all away.
I'm going with AAW, traded an old 4 wheeler for the wiring install. Value $800-1000.

 

3/25/2015 4:22 AM  #9


Re: Cost to Wire a Mustang? (updated)

I tend to agree with Jeff but would like to add one thing. There is a post a little farther down "66 fastback wiring". One of the guys that posted there, Don (last post), that states there is a company the sales original wiring harness. He also states the do custom work. You may be able to get an original harness with custom fuse block, that can easily handle the EFI. With an original style harness should be easy and there are many on here that can help with any trobule. Don't know what they charge, but it's worth a look. If you go with something that simple, for $1000 I'm wire as many as cars as you can send me.


If this forum can't fix it, it isn't broke.
 

3/25/2015 6:58 AM  #10


Re: Cost to Wire a Mustang? (updated)

I would strongly recommend sending  your original harnesses to Mid Life Harnesses..850-248-1967.....for restoration...Randy will restore them for less then half the cost of new ones...I believe he can also weave in the EFI wires for a Plug and Play....jj

Last edited by jerseyjoe (3/25/2015 7:03 AM)


"Never put a question mark where God put a period "  Richard Petty
 

3/25/2015 7:54 AM  #11


Re: Cost to Wire a Mustang? (updated)

I would recommend you stay away from American Auto Wire.  It seems like a good harness but it is a pain to install.  I am doing a 70 Mustang right now with this kit because that is what the customer wanted. I did my 66 with a factory harness from NPD in less that 1/2 the time I have in this one.
Your results may vary.


Bash Host MSBB XVI.       BobC    1966 Mustang Coupe
 

3/25/2015 7:59 AM  #12


Re: Cost to Wire a Mustang? (updated)

If you're running a carberator then you only need one harness.  B/c my setup is EFI I need two harnesses.  The problem w/ just going and getting a harness and getting it modified is that the lengths are likely to come out wrong.  What I discovered was the idiot who previously wired the car spliced and extended a few dozen wires to make everything work which required cutting stock connections and lots of electrical tape.  Worst of this was cutting a huge whole in the firewall to get the EFI harness connector to reach rather than routing it correctly. 

This is my logic for going w/ a painless or similar wiring kit.  Since you have to add the connectors yourself you can set the correct length.  Honestly, if I could pay double and know it was done right I would.  I'm so fed up w/ running into these 'I can do anything' types that talk a big game and under deliver.

     Thread Starter
 

3/25/2015 1:34 PM  #13


Re: Cost to Wire a Mustang? (updated)

American Auto Wire set up is NOT for a stock wiring replacement! 
 It is meant for cars that are modded with 1 wire alternators, power windows, electric fans  plus a whole lot of add ons that a stock harness wont handle.
 If you are going stock the 'Mid Life" rebuild is the very best  way to go.
 I was more than pleased with AAW's offering, a far better product than Painless.


Good work ain't cheap, Cheap work ain't good!   Simple Man
 

3/25/2015 3:24 PM  #14


Re: Cost to Wire a Mustang? (updated)

Last year, before the Bash, II replaced the old origional-ish(cos there were plenty of mod re-wires) with an American auto wire kit. I AM NO ELECTRICIAN!!!!
When it was done, turned out to be less hassle than I imagined, it was easy(relatively) to interface with mods; EFI, 4R70W quick one shift controler, electric windows, add nausium. And the trick thing was it all worked, even stuff that haden't worked in years. So I've been happy with my experience with them. I was able to stump their expert assistance, Hehheh
I do now own a set of the wire crimpers American Auto Wire rents, cos I kept them too long.

Tubo


If it ain't broke, I haven't modified it Yet
 

3/25/2015 3:46 PM  #15


Re: Cost to Wire a Mustang? (updated)

I have just begone installing a Ron Francis kit and I would highly recommend any of there products. It is a front loaded fuse panel and is much easier to add to later if you need. It's a ford generic not specific to mustang so you need to know a bit about what your doing, but has a great schematic and instructions as well as good tech support.Only down fall is the size, and finding some where under the dash to put it. I removed the fresh air intake on the drivers side and mounted it above the kick panel. I also made it easy to remove with just one screw so that I can drop it down for access if needed. I figure if I really need outside air I can role down the window or open the passenger inlet. Eventually I will be installing AC anyway. One nice feature is that it has 3 or four fuses that can be switched between on all the time or on with the key by just sliding them over one place. These are the kits that high end builders like my friend Tim Divers at Divers Street Rods and Greg Parsley at Retro Rods uses. Price is fair too.

 

3/25/2015 3:48 PM  #16


Re: Cost to Wire a Mustang? (updated)

Just go through the stock stuff you have now and ...SOLDER and SHRINK TUBE all the connections!   I even put sections of differnt color wire in the middle of the run just so bothth ends of a circuit would be the same color code. New runs I just numbered the wire on both ends ...especially when it passed through the firewall or into the trunk. The little book of numbers is readily available so you can mark a particular run of wire several times(especially under the dash. ) A good solder joint and shrink tube connection  can't be too much less than a wire with no connections.
These things are "hobby carz" not factory clones! Enjoy working on it!! MHO
6sal6


Get busy Liv'in or get busy Die'n....Host of the 2020 Bash at the Beach/The only Bash that got cancelled  )8
 

3/25/2015 4:54 PM  #17


Re: Cost to Wire a Mustang? (updated)

Tubo wrote:

Last year, before the Bash, II replaced the old origional-ish(cos there were plenty of mod re-wires) with an American auto wire kit. I AM NO ELECTRICIAN!!!!
When it was done, turned out to be less hassle than I imagined, it was easy(relatively) to interface with mods; EFI, 4R70W quick one shift controler, electric windows, add nausium. And the trick thing was it all worked, even stuff that haden't worked in years. So I've been happy with my experience with them. I was able to stump their expert assistance, Hehheh
I do now own a set of the wire crimpers American Auto Wire rents, cos I kept them too long.



http://www.americanautowire.com/view-product/1964-1966-ford-mustang/
Oh Yeah the cost, Which was less than $500. Even though the list price is $650, they can be had cheaper.
I agree with RUDI's statement, " I was more than pleased with AAW's offering, a far better product than Painless."

Tubo


If it ain't broke, I haven't modified it Yet
 

3/25/2015 5:06 PM  #18


Re: Cost to Wire a Mustang? (updated)

Rather than try to dela with what the previous guy hacked up I'd fix whateve rhe did that you don't like.  If its a hole in the firewall, fix it, and put it where you want it.  Compromising on stuff like that will piss you off for years to come.  If its apart now, go whole hog, or else what's the point?

I rewired my car with stock replacment wiring from tail to nose in a couple hours each evening over maybe three days.  Get a factory assembly manual.  Its helps a ton with the routing.  I could easily add anything I want in the future.  If its too much for the stock setup I can add an auxillary fuse block for the accessories.  The stock wiring in these cars, properly reporoduced, is very durable and relaible.  The problem most times isn't that its bad from age, rather its been screwed up by 40+ years of hacks who didn't know how to do electrical work. 

 

3/25/2015 7:08 PM  #19


Re: Cost to Wire a Mustang? (updated)

I bought a bunch of rolls of diffferent colored wire of different gauges and a real nice wire labeller. Built a wire rack so I could make harnesses easier and went to work. I was amazed how quick it went and easy it was. I had to find a few connectors, but now I know every connection and wire route. Best part was I spent less than the kit and I now have a great labeler. I also got to label every thing something I understand, like "left front parking lightl". Looks to me like since you have all the devices new or already un-hooked, it should be an easy install, fighting rusty/corroded sockets and connections is what takes a lot of the time.

Last edited by DC (3/25/2015 7:10 PM)

 

3/25/2015 9:46 PM  #20


Re: Cost to Wire a Mustang? (updated)

Most shops I've found here want at least 26-30 an hour for doing electrical work.

 

3/25/2015 10:06 PM  #21


Re: Cost to Wire a Mustang? (updated)

If you do it yourself enough cannot be said about good wire wrap, heat shrink, and even heat protection. I haven't done my Mustang yet, but I am in the middle of replacing the engine harness in my 95 Lightning to support a Megasquirt EFI. For the interior I used Flexo Clean Cut and a good quality heat shrink. For underhood you can buy OEM style non-adhesive wire wrap (Late Model Restoration has it) and then cover with a high temp wrap if needed (near headers or a heat soak area). For the heat wrap there's all kinds, but I am buying DEI's Fire Wrap and Fire Sleeve, kinda pricey, but good quality stuff and you don't need all that much unless you're running a Turbo

I would say just do it yourself, get a whiteboard if needed so you can draw it all out. Then just go slow, it's not hard, tedious yes, but not hard.

 

3/26/2015 4:19 AM  #22


Re: Cost to Wire a Mustang? (updated)

I will have to re-wire my whole car as well.  When I took everything apart, the original harness had been hacked a few times by prior owners and many of the wires that weren't hacked were so dry and brittle that they cracked and broke. 

I've been reading a lot of opinions and had narrowed it down to Painless or  AAW.   Painless seemed like the most "painless" because it looks like a lot of terminals are already connected. I also watched the CJ video and it looked pretty easy.

For those of you that used Painless and had a bad experience, how long ago was it?  I am wondering if they've improved their product over the years.

Last edited by Chaplin (3/26/2015 9:08 AM)

 

3/26/2015 8:46 AM  #23


Re: Cost to Wire a Mustang? (updated)

also checkout , I used this harness and it was a exact replacement, I do wish I would have hade them make it with a modern fuse box.   

www.ynzyesterdaysparts.com/ 

 

3/26/2015 9:02 AM  #24


Re: Cost to Wire a Mustang? (updated)

I used the Painless kit for my 66 coupe.  If I had to do it again, I would not.  That being said, I have a lot of custom aftermarket products in my car, no where near stock.  My wiring guy basically cut about half of the wire harness out fo the Painless kit before we even started.  He told me if we were to start over we would have been better off building our own harness.  We have about 60-70 hours of time into my wiring and we still have another 10-20 hours to go.  My guy refuses to let me pay him, very thankful but I have been able to contribute to his car build with some parts.  With those hours you can imagine what I would have paid in money if he charged me!

 

3/26/2015 2:04 PM  #25


Re: Cost to Wire a Mustang? (updated)

I put a Painless kit in a 67, and it went in without a hitch.  I can't compare it to others as I've never used any other brand, but I can say the quality of the wire itself was excellent and every wire is printed with it's identification number along it's entire length.

John

 

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