Attn: Electrical experts (GP?)

[Edbert]

I think I've got it figured out (thats what worries me the most). I am in the process of adding 7 relays and a painless kit to my 67, and have been buried with the wiring. I have drawn out the engine compartment (most of it, not counting the gauges) and put it to electronic form. I would appreciate it if one of you electrical guru types would look this over for any mistakes I've made before I begin cutting/routing/splicing.

I have a wizbang html version of the document on my website but it is only IE6x friendly. If you have that browser it should work best for you to click here:
http://www.edbert.net/engcompwiring.htm

If you don't have IE6 then you can see this, but it is large and a little blurry:

 

[gp001]

I printed it out and I am taking a look at it over lunch. I have 2 questions so far:
1. Why is the terminal and starter connected?

I would move the large black wire going from the terminal to the starter and make it go between the terminal and the alternator.

2. Why are there 2 relays for the water pump? (2 pumps?, redundant system?)

 

[Edbert]

I printed it out and I am taking a look at it over lunch. I have 2 questions so far:
1. Why is the terminal and starter connected?

I am using a late-model permanent-magent starter. The heavy gauge cable is there to allow full battery amperage during start. The smaller (8ga.) wire is there for actuation.

I would move the large black wire going from the terminal to the starter and make it go between the terminal and the alternator.

I completely left out the red alternator exiter wire! It should connect directly to my terminal block (one hop from the B+) according to my thoughts.

2. Why are there 2 relays for the water pump? (2 pumps?, redundant system?)

It was recommended by Mark over at Mad Electrical (http://www.madelectrical.com). I asked him twice, becasue my water pump is rated at 11-14amps and these are 40amp relays. He said those are normal (average) draw ratings and that they (large CFM fans and high-volume water pumps) can spike high enough to damage the relays. By setting them up in parrallel I am just that much more "overbuilt".

 

[gp001]

I am using a late-model permanent-magent starter. The heavy gauge cable is there to allow full battery amperage during start. The smaller (8ga.) wire is there for actuation..

Then you really don't need the solenoid in the trunk (since the late model starters have the solenoid built in), right?. I would still run the power to the starter from a separate cable straight from bat, then have a charge cable coming from the alt to the terminal, then from terminal to bat.

Sounds good about the pump. Mark does know his stuff. Have you seen his Ranchero?

 

[Edbert]

Taking the drawings to photographs:

More photos:
http://www.edbert.net/brain.htm