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  #1  
Old December 14th, 2004, 14:38
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red91 red91 is offline
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custom battery cables...

In an attempt to try and do it myself I'm wondering the following...

cable ratings...

1 is bigger than 2, but 2/0 is bigger than both. Which to use ??

Also Can I piggyback the new over the old, or...cut the exisiting ends off and install new cable or...Completely take apart the harness and work it that way?

Who's done what ?? Help please...
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  #2  
Old December 14th, 2004, 14:40
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bgcntry72 bgcntry72 is offline
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Re: custom battery cables...

This is what you want.
I got these when they first came out.
Amazing difference in charging system and start times.
HTH.
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  #3  
Old December 14th, 2004, 15:09
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Re: custom battery cables...

I did all of mine myself and got all the stuff from Napa, I used 1 gauge and the solder on ends when I hooked up my dual batteries.
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  #4  
Old December 14th, 2004, 15:20
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Re: custom battery cables...

Quote:
Originally Posted by bgcntry72
This is what you want.
I got these when they first came out.
Amazing difference in charging system and start times.
HTH.

I've seen those. I'm just wondering if I can go over the existing cables or if I should disect a donor wiring loom to install into first before I take the one from my rig out.

decisions...

thanks man. apreciate the help.
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  #5  
Old December 14th, 2004, 15:23
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Re: custom battery cables...

I made my own, using 2/0 welder cable and terminals from the local welding supply house - but I'm a firm believer in overkill and I had the cable around anyhow.

I'd suggest using about a 1 gage welding cable (should be a touch less than $1/foot) and terminals, and run three grounds while you're at it (one to the engine block, one to the chassis sheetmetal, and a smaller one to the back of the alternator case.) Get enough cable to replace that useless little braided ground strap from the cylinder head to the firewall while you're at it as well.

All in all, this really is the best way to do the job - especially since you'll already have the crimper for when your buddies want cables... (it's perfectly acceptable to make a little money, even when charging mate's rates.)

If memory serves, I used 2/0 for everything except the alternator ground, which got some 4 gage I had lying about.

Once you handle welder cable, you'll never go back. It's solid, flexes and routes easily, and will take anything the underhood environment can throw at it and just grin back. Good stuff.

5-90
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  #6  
Old December 14th, 2004, 15:36
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Re: custom battery cables...

Please guys...did you take out your exisiting cable before the conversion, or did you just overlap, or cut it out ???

the only remaining question...

thanks guys...I knew you'd help again !!
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  #7  
Old December 14th, 2004, 15:41
Gridikal Gridikal is offline
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Re: custom battery cables...

Quote:
Originally Posted by red91inWA
Please guys...did you take out your exisiting cable before the conversion, or did you just overlap, or cut it out ???

the only remaining question...

thanks guys...I knew you'd help again !!
not sure what you mean by "overlap" but just yank out all the crappy 10 Ga and 8 ga stock cables and replace them with whats listed above, get new terminals, solder all connections and you'll be good to go- least thats what I did
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  #8  
Old December 14th, 2004, 15:44
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Re: custom battery cables...

Yank out both of the positive cables and both of the negative cables from the battery to their ending points.
Then, replace the thicker (+) and (-) with 2/0 welding cable, and the smaller (+) and (-) with 4/0 welding cable.
Use marine quick-release ends on the battery, and big ring-ends for the starter, fuse block, and grounds.
HTH.

Last edited by bgcntry72; December 14th, 2004 at 15:50.
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  #9  
Old December 14th, 2004, 16:03
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Re: custom battery cables...

Quote:
Originally Posted by red91inWA
Please guys...did you take out your exisiting cable before the conversion, or did you just overlap, or cut it out ???

the only remaining question...

thanks guys...I knew you'd help again !!
Sorry - I tossed the old stuff in the scrap bin. I also replaced the OEMR lead battery clamps with marine-grade Brass - they conduct better and are easier to keep clean.

5-90
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  #10  
Old December 14th, 2004, 16:17
Gridikal Gridikal is offline
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Re: custom battery cables...

This is my crappy setup- but its better than stock... I only used 4 ga audio-grade cable because, well, thats what I do and I have tons of it layin around. Use 1ga if ya got it...


the red and black 8 ga cables go into the cab to power power inverters, amp turn-on relays and etc etc etc- the capacitor beside the fuse box it hooked to the starter- makes for fast start times ... on a second note, anyone know if aftermarket battery hold-downs are availible? mines lookin kinda fugly
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  #11  
Old December 14th, 2004, 16:20
ZmOz ZmOz is offline
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Re: custom battery cables...

Yeah, get rid of the old crap, it's just going to make a mess in there. I have made around 15 sets of XJ battery cables using 2/0. I wouldn't suggest 2/0 unless you use welding cable, which is much more flexible. 2/0 battery cable (like you buy at Napa) is quite stiff and hard to work with. 1/0 is better if you're using battery cable. Cover all the connections with heat shrink tubing or liquid electrical tape. I used 4 gauge from the battery to the fuse box under the hood, I think stock is 8 gauge. Also, the jeepers and creepers cables are a huge rip off. A few feet of cable is not worth $100.

Last edited by ZmOz; December 14th, 2004 at 16:23.
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  #12  
Old December 14th, 2004, 18:11
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Re: custom battery cables...

That is one NICE wiring job dothedew24_7! I'm thinkin about replacing more of my wiring now....but yeah, there are universal battery hold down straps available. I don't remember where I ended up buying mine, but they had them at most of the local shops-NAPA, VIP, Autozone....

By the way, anyone have an idea of how many feet of wire to buy so I can get it before I tear my rig apart?
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  #13  
Old December 14th, 2004, 19:21
ZmOz ZmOz is offline
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Re: custom battery cables...

Depends on the year, you'll need about 6 feet. I would suggest you buy 7 just to be safe.
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  #14  
Old December 14th, 2004, 19:38
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Re: custom battery cables...

So 7 ft for just the power lead? #1 red should work for the one to the starter , right? And an 8 in piece of black #1 for the ground from the body to the neg. terminal on the battery should be an easy upgrade, right? The stock one to the fuse box should be ok?
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  #15  
Old December 14th, 2004, 19:52
ZmOz ZmOz is offline
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Re: custom battery cables...

Battery to starter is almost 3 feet, battery to engine block ground is about 25-30" depending on the year. Battery to body ground should be pretty short - 4 gauge is more than enough for this. (a short peice of 4 gauge will flow as many amps as a long peice of 2/0) The positive to fuse box cable is only about 12", 4 gauge is good here too.
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