[j persons]

If you need to replace your wire harness, the AAW Classic Update harness comes with relays already wired in for the lights and horn. I was pleasantly surprised to find this, and means I don't have to wire in or find a place for a relay box under the hood. My battery is in the rear, and I am going to use relays at the rear for fuel pump and one of those trick trunk release gizmos. All that wiring will be hidden, I will build a relay panel to mount everything on to keep it organized.

 

[jharris]

The Amazon kit is based on a small car fusebox, I think it is a Toyota Tercel or something. If you have infinite money, there's always Infinitybox.

Guys, it isn't an infinite money thing. If you look at what you get with our kit and the features you get, it is the same price or less when you compare it to a traditional wiring harness. We did a full install series in a 1967 Mustang. This link will take you to the first of the posts that walks you through the process. Check out the Infinitybox website and search for Mustang install.

Jay

 

[journeywork]

I made a relay panel mounted next to my battery:

Custom relay panel

Just thought I'd share this project. There are 6 relays, each one has it's own fuse. I mounted this next to the battery in my 66 coupe. I use them for low beam, high beam, ignition, and electric fan right now. The electric fan is hooked to the third relay from the left which is rigged to...

www.vintage-mustang.com

 

[Untamed69]

You DO realize that the Mustang has, basically, ONE power feed wire, attached to the solenoid "common" post that runs inside the passenger compartment to the fuse box and ignition switch and, from there, to all the various switches, etc., and out to the various components. Relocating all those circuits to a fuse box in the engine compartment means you're going to have not one, but however many "power wires" going through the firewall where you're going to pretty much be scrapping the under-dash harness and custom wiring everything? You'd be much better off, if you want decent circuit protection, to put ONE mega-fuse between the solenoid and the main power feed wire and "updating" the fuse box in the passenger compartment so you can keep the factory (or equivalent) harness.

You DO realize that the Mustang has, basically, ONE power feed wire, attached to the solenoid "common" post that runs inside the passenger compartment to the fuse box and ignition switch and, from there, to all the various switches, etc., and out to the various components. Relocating all those circuits to a fuse box in the engine compartment means you're going to have not one, but however many "power wires" going through the firewall where you're going to pretty much be scrapping the under-dash harness and custom wiring everything? You'd be much better off, if you want decent circuit protection, to put ONE mega-fuse between the solenoid and the main power feed wire and "updating" the fuse box in the passenger compartment so you can keep the factory (or equivalent) harness.

FWIW, if you install a horn relay you can eliminate the power feed to the horn switch.

This is what we did. Built a bracket for 150 amp circuit breaker for alt, 100 amp circuit breaker for main power, one 30 amp circuit breaker for fuel pump relay, and one 50 amp circuit breaker for amp in the trunk. Made lead wires to connect to solenoid. Got them all at Summit.

 

[j persons]

This is what we did. Built a bracket for 150 amp circuit breaker for alt, 100 amp circuit breaker for main power, one 30 amp circuit breaker for fuel pump relay, and one 50 amp circuit breaker for amp in the trunk. Made lead wires to connect to solenoid. Got them all at Summit.

If those circuit breakers are next to the engine, you may have problems with them tripping. CB's can be sensitive to heat and excess heat will lower the rated capacity of the CB.

 

[bmcgc]

Im not rewiring the car. Im just going to power the high amp items on relays, just like many of you have done.

I dont want relays all over the engine compartment, I dont want a bunch of power wires on the solenoid, like I see on many cars.

Next trip to the P-A-P Im going to take one out of a car and give that a whirl.

 

[Woodchuck]

View attachment 747404 View attachment 747405

This is what we did. Built a bracket for 150 amp circuit breaker for alt, 100 amp circuit breaker for main power, one 30 amp circuit breaker for fuel pump relay, and one 50 amp circuit breaker for amp in the trunk. Made lead wires to connect to solenoid. Got them all at Summit.

Clean... now for just one question.... under what circumstance would you expect the alternator breaker to every trip? The output wire falling off the back of the alternator and shorting to ground is going to pop your main 100A breaker first... really no need for an alternator breaker....

 

[Untamed69]

Clean... now for just one question.... under what circumstance would you expect the alternator breaker to every trip? The output wire falling off the back of the alternator and shorting to ground is going to pop your main 100A breaker first... really no need for an alternator breaker....

I know, it is over-kill. I'm using American Autowire Classic Series harness. Instructions required fusible link, which I didn't want.....plus, I am a rookie at this.

 

[Woodchuck]

I know, it is over-kill. I'm using American Autowire Classic Series harness. Instructions required fusible link, which I didn't want.....plus, I am a rookie at this.

You may want to consider swapping breakers... to the 150 amp for the main.

 

[j persons]

I know, it is over-kill. I'm using American Autowire Classic Series harness. Instructions required fusible link, which I didn't want.....plus, I am a rookie at this.

After having a fuse link burn up all the adjacent wires in a car I used to have, I'm not a fan of fuse links. I'm doing away with them and using mega fuses in my AAW wire kit.. These are bolt in fuses in higher amperage ratings than the normal ATO type fuses

 

[PA_cob]

@bmcgc did you ever figure this out. After installing a few different relays for various things on my 65 I have been thinking that a single box with a main power and ground would be the answer. I remember seeing a post a while back that detailed using a box out a late model ford I think. But I haven't been able to find that post.

 

[bmcgc]

I bought a couple boxes at the JY, not happy with how either of them fit the engine bay, Im still working on it.

I may end up with 2 boxes under the battery tray, one for fuses and one for relays.

 

[PA_cob]

I see. I did watch the video about the Jeep box. I am going to the junk tommorow to see what I can find as far as boxes.