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Installing Battery In Trunk Wire Size ?
#1228473
05/07/12 09:54 AM
05/07/12 09:54 AM
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Joined: Nov 2004
Posts: 892
USA
krw71ragtop
OP
super stock
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OP
super stock
Joined: Nov 2004
Posts: 892
USA
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What guage wire should I use for the battery mounted in the trunk ? Any other tips would be apppreciated.  I'll need 15' of wire and it's for an A-body.
Last edited by krw71ragtop; 05/07/12 09:56 AM.
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Re: Installing Battery In Trunk Wire Size ?
[Re: fullmetaljacket]
#1228475
05/07/12 10:27 AM
05/07/12 10:27 AM
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Joined: Nov 2004
Posts: 892
USA
krw71ragtop
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super stock
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OP
super stock
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Quote:
I run the #0 gauge. You can also run #1 gauge. Make sure to make radius bends and attach at every 16 inches with a clamp. Also make sure to use heat shrink wrap at the terminals.
You'll have to install a shut off switch if you intend on going to the track to race.
Looks like I need to add a shut off switch and some clamps to my list. Was leaning towards the #0 wire. Thanks for the help.  Anyone else ?
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Re: Installing Battery In Trunk Wire Size ?
[Re: Clanton]
#1228477
05/07/12 10:44 AM
05/07/12 10:44 AM
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Joined: Nov 2004
Posts: 892
USA
krw71ragtop
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super stock
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OP
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Quote:
are you talking the cable to the starter or to the alt?
The cable from the starter to the battery in the trunk.
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Re: Installing Battery In Trunk Wire Size ?
[Re: Crizila]
#1228479
05/07/12 12:07 PM
05/07/12 12:07 PM
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Joined: May 2011
Posts: 4,489
northern,Ohio,USA
Clanton
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master
Joined: May 2011
Posts: 4,489
northern,Ohio,USA
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Quote:
Quote:
Quote:
are you talking the cable to the starter or to the alt?
The cable from the starter to the battery in the trunk.
For a 15' run 1 gauge is plenty. Don't want to carry the extra weight if you don't need to. 
how much weight could it be 1.lb#  go pee before you get in the car.  i have a 0# cable but have more cranking demands.I have a #4 from the alt to the battery and to the power switch for fuel,fan,water... 
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Re: Installing Battery In Trunk Wire Size ?
[Re: fullmetaljacket]
#1228480
05/07/12 01:38 PM
05/07/12 01:38 PM
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Joined: Nov 2004
Posts: 892
USA
krw71ragtop
OP
super stock
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OP
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Posts: 892
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Quote:
I run the #0 gauge. You can also run #1 gauge. Make sure to make radius bends and attach at every 16 inches with a clamp. Also make sure to use heat shrink wrap at the terminals.
You'll have to install a shut off switch if you intend on going to the track to race.
Where do you mount the shut off switch ?
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Re: Installing Battery In Trunk Wire Size ?
[Re: fullmetaljacket]
#1228481
05/07/12 01:38 PM
05/07/12 01:38 PM
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Joined: Nov 2004
Posts: 892
USA
krw71ragtop
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OP
super stock
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Posts: 892
USA
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Quote:
I run the #0 gauge. You can also run #1 gauge. Make sure to make radius bends and attach at every 16 inches with a clamp. Also make sure to use heat shrink wrap at the terminals.
You'll have to install a shut off switch if you intend on going to the track to race.
Where do you mount the shut off switch ?
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Re: Installing Battery In Trunk Wire Size ?
[Re: jamesc]
#1228484
05/07/12 02:37 PM
05/07/12 02:37 PM
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Joined: Nov 2004
Posts: 892
USA
krw71ragtop
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Quote:
the switch should be mounted in the back with the battery and it needs to shut the car off so there are implications with the alternator circuit so it doesn't keep the car running.
Would you have a wiring diagram of this whole modification ? Sounds like it's starting to get complicated !
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Re: Installing Battery In Trunk Wire Size ?
[Re: krw71ragtop]
#1228485
05/07/12 03:55 PM
05/07/12 03:55 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
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Master
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Posts: 52,972
Romeo MI
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Quote:
Quote:
the switch should be mounted in the back with the battery and it needs to shut the car off so there are implications with the alternator circuit so it doesn't keep the car running.
Would you have a wiring diagram of this whole modification ? Sounds like it's starting to get complicated !
The simplest way to do this is to run the alt output
wire to the back and hook it up to the battery side
of the master shut off switch... that will kill it
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Re: Installing Battery In Trunk Wire Size ?
[Re: MR_P_BODY]
#1228486
05/07/12 04:05 PM
05/07/12 04:05 PM
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Joined: Jan 2003
Posts: 8,028
Tulsa OK
Bad340fish
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master
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Posts: 8,028
Tulsa OK
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I am running a 2 gauge wire for the starter and another 2 guage wire to my distribution panel. Seems to be adequate, I have had zero trouble from either side. I run a ford solenoid in the trunk so the starter wire is only hot when the starter button is pushed.
Between moving the starter solenoid to the trunk and having my relay panel inside the car it really took a bunch of wires out of the engine compartment.
68 Barracuda Formula S 340
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Re: Installing Battery In Trunk Wire Size ?
[Re: MR_P_BODY]
#1228487
05/07/12 04:29 PM
05/07/12 04:29 PM
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Joined: Jan 2003
Posts: 5,875
communist bloc of new jersey
jamesc
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master
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Posts: 5,875
communist bloc of new jersey
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Quote:
The simplest way to do this is to run the alt output
wire to the back and hook it up to the battery side
of the master shut off switch... that will kill it
that is the least complicated but it leaves the alternator output line hot at all times. personally i would use a two pole battery switch and use the second pair of small terminals to control the field with a relay assuming it's not a single wire. if it has a field line you can use a relay with a small line from the two pole switch to run the relay. i know it sounds complicated to people not familiar with electrical but it's rather simple. what type of alternator are you using?
here's an example of what type of switch i mentioned
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Re: Installing Battery In Trunk Wire Size ?
[Re: fullmetaljacket]
#1228489
05/07/12 08:19 PM
05/07/12 08:19 PM
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Joined: May 2011
Posts: 4,489
northern,Ohio,USA
Clanton
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master
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Posts: 4,489
northern,Ohio,USA
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Quote:
I have my cut off switch installed on the back valance panel near the License plate just below the trunk lid. This is on a early B-Body now. Because of its double agent life as a street/strip car, the switch is mounted discreetly but yet visible for an emergency by track officials or fellow racers that know where to look for it more or less.
Remember, that the switch has to have visible ON/OFF markings on the body panel that it is attached to.
it would be funny to have a license plate saying on off and have the switch under it.well funny to me anyways.
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Re: Installing Battery In Trunk Wire Size ?
[Re: Clanton]
#1228492
05/08/12 08:50 AM
05/08/12 08:50 AM
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Joined: Jan 2003
Posts: 21,076
Niles , Ohio
therocks
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,076
Niles , Ohio
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I agree 1 gauge at minimum.0 gauge is better for bot ground and hot.For the alt bun 10 or 8 gauge.If you have to worry about the little weight from 1 to 0 you need a bigger motor.Rocky
Chrysler Firepower
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Race track rules are really slowing me down if you know what I mean ! 
Thanks again for all the comments from everyone. I've learned a lot from it and now understand what needs to be done when the time comes.