FYI FORD - MustangSteve's Ford Mustang Forum
The Internet's Most Knowledgeable Classic Mustang Information
IF YOU HAVE A QUESTION ABOUT CLASSIC FORD MUSTANGS, YOU HAVE COME TO THE RIGHT PLACE!
MustangSteve has over 30 years of Mustang experience, having owned 30 of them and restored several others. With the help of other Mustangers, this site is dedicated to helping anyone wanting to restore or modify their Mustang.... THERE ARE NO DUMB QUESTIONS!!!!!
Visit MustangSteve's web site to view some of my work and find details for:
FYIFORD Contributors' PICTURES - Power Brake Retrofit Kits for 65-66 Stangs - Classic Mustang FAQ's by MustangSteve - How to wire in a Duraspark Ignition - Mustang Ride Height Pictures and Descriptions - Steel Bushings to fit Granada Spindles to Mustang Tie Rods - Visit my EBAY store MustangSteve Performance - How to Install Granada Disc Brakes MustangSteve's Disc Brake Swap Page - FYIFORD Acronyms for guide to all the acronyms used on this page - FYIFORD Important information and upcoming events

You are not logged in. Would you like to login or register?

2/13/2019 9:11 AM  #1


another wiring question

I'm installing some Speedhut gauges in my 67 bezel and looking for recommendations on how to make some of the connections.  Each gauges shares 3 common connections(12v keyed ign, ground, 12v dash lighting)   I want to daisy chain these connections together from one gauge to the next as opposed to running separate feeds from a plug to each gauge.

The Speedhut gauges have the wires coming straight out of the back of the gauge without a stud to make connectons. 

Should I use something like a butt connector that will crimp on from one gauge to the next ? or would it be better to do something like what they call the Westinghouse split where I would feed one wire to my harness plug and then a feed from each gauge in to this wire by just removing 1/2" insulation and wrapping the wire tightly and applying heat shrink and zip tie?  should I consider soldering as well ?

 

 

2/13/2019 12:44 PM  #2


Re: another wiring question

I don't see an issue with daisy chaining and I like non-insulated butt splices that get crimped and solder. The Westinghouse split should work fine too and I would solder those as well. Heat shrink is a must.
Look for the stuff that has at least a 3-1 ratio. Thanks to BB for that one.


John  -- 67 Mustang Coupe 390 5 speed
 

2/13/2019 3:00 PM  #3


Re: another wiring question

What Bolted says.  Butt be careful soldering.  You want to heat the center of the non-insulated butt splice and draw the solder into the tube.  Otherwise the solder will flow into the wire too far and make it rigid and easily breakable.   And be sure to dip the stripped wire in flux before crimping.
And, if you use the cheapo auto zoo (O'Reileys, car quest, or most others) wire the insulation will crawl away from the soldered splice.  I only use good wire from Allied Cable (or other good sources).  It has high temp insulation that stays put when soldering. 

If you just need a few feet of wire to make up your instrument harness let me know and I'll send what you need.  I have a dozen colors and can provide 18 or 16ga as needed.

John:  Thanks for the thanks but I don't recall what I did or said to earn them.  Butt then, I am pretty old.  See ya in Clinton....cain't wait.

BB
 


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

2/13/2019 4:01 PM  #4


Re: another wiring question

My preference on gauges is to make up a bus bar that provides 12v keyed power, ground, and lighting circuit power.  There's nothing wrong with splicing, but this way I can remove the gauges one at a time if I ever have an issue with any one.  I simply use some brass hardware as lugs and run it into some plastic to insulate each lug from the other.  Then ring or prong terminals on the wires.  Tighten down the nut once they're all on and done.  For terminals I really like the solder/seal terminals.  Simply apply heat with a heat gun and they solder and shrink tube all in one step.  If you want to get super tricky you can heat shrink another layer of thin black heat shrink tubing over it and it comes very, very close to the size and appearance of a factory Ford rubber shod terminal.  I do this in the engine bay when terminals will be seen to make them appear factory. 

Last edited by TKOPerformance (2/14/2019 5:23 AM)

 

2/13/2019 8:56 PM  #5


Re: another wiring question

Bullet Bob wrote:

John:  Thanks for the thanks but I don't recall what I did or said to earn them.  Butt then, I am pretty old.  See ya in Clinton....cain't wait.

BB
 

That pack of information you sent me and a lot of others, had a place to buy heat shrink. Until then, I didn't realize there was a ratio on the stuff. I thought it was all the same and couldn't understand why the stuff I was getting from Lowes didn't act the same as I got at work.


John  -- 67 Mustang Coupe 390 5 speed
 

2/13/2019 9:18 PM  #6


Re: another wiring question

Bolted to Floor wrote:

Bullet Bob wrote:

John:  Thanks for the thanks but I don't recall what I did or said to earn them.  Butt then, I am pretty old.  See ya in Clinton....cain't wait.

BB
 

That pack of information you sent me and a lot of others, had a place to buy heat shrink. Until then, I didn't realize there was a ratio on the stuff. I thought it was all the same and couldn't understand why the stuff I was getting from Lowes didn't act the same as I got at work.

There's also different types of liners (adhesive, non-adhesive) and flexibility. I bought a ton of USA made heat shrink from these guys https://www.sherco-auto.com/usa.html 

Picked up quality USA wire from here https://www.wiringproducts.com/cross-link-sxl-wire **Meant to add, there's different insulation thicknesses. SXL is a thicker insulator.**

Also used Waytek and McMasterCarr (expensive!) when needed. 

My philosophy is I'd rather not scrimp on wiring, not only for safety, but the giant pain it can be to track down problems later on!
 

Last edited by Raymond_B (2/13/2019 9:28 PM)

 

2/14/2019 6:44 AM  #7


Re: another wiring question

I have used 3 sets of Speed Hut gauges, they all came with daisy chain wiring for the lighting and common connections.  The customer support at Speed Hut is very good, you may want to give them a call.

Dennis


www.quadmat.com  Butyl Sound Deadener & Insulation
 

2/14/2019 8:06 AM  #8


Re: another wiring question

Thanks for the info guys.

I got plenty of good info that will help with other electrical work I'm doing like dual electric fans etc.

As Dkralc mentioned in his post the Speedhut set up comes with a special daisy chain harness which will make this easy enough.  Didn't see it in the one gauge box until last night.

I also have a relative that works at NSPA.com that manufactures electrical components like the non-insulated connectors you guys mention. Anybody ever use any of their stuff?  seems high quality from their website.  Getting her to pick me some stuff up at a discount.

 

     Thread Starter
 

2/14/2019 11:35 AM  #9


Re: another wiring question

Looks like pretty good stuff, enjoy your discount I'm jealous!

 

2/14/2019 9:43 PM  #10


Re: another wiring question

Just did this the other day on a trio of SW gauges (elec oil press, water temp and voltage) that sit on a pod that replaces the radio grill in my 65.  I chained together the 18 gauge wire from the gauges to a strand of 14 gauge wire.  I soldered them together and then covered the joint with a couple of layers of heat shrink tubing.  You have to use a lot of heat to solder 4 wires together so the typical 40 watt soldering iron won't cut it.  Also helps to coat the wires with some rosin flux first.  Did this for the wire that runs to the ignition, the wire that runs to the lights, and the one for the ground.  The elect oil press and water temp gauges I ran have a fourth wire that goes to the sender.  FYI, you can get an oil pressure sender extension that has a second port on the side that also allows you to run the idiot light (or you can drill and tap it yourself).


Cheap, Fast, Good:  Pick Any Two
 

2/15/2019 3:59 PM  #11


Re: another wiring question

When I did a  rewire with a AAW kit I daisy chained the power to my gauges. Most connectors I used were the ones supplied with the kit but in retrospect should have spent the extra money on water proof connectors.

Gauges are Autometer

 

Last edited by Rudi (2/15/2019 4:01 PM)


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

Board footera


REMEMBER!!! When posting a question about your Mustang or other Ford on this forum, BE SURE to tell us what it is, what year, engine, etc so we have enough information to go on.