stocker battery cable routing

ron b · 11-20-2008, 08:50 PM

i am building a 68 mustang stocker and want to add a second battery in the trunk. should i run the positive cable inside the car or outside against the frame rail. also do they want the rear firewall completely welded. thanks ron

Tom Goldman · 11-21-2008, 05:09 PM

Ron to do it correctly you will actually need to run 2 positive cables to the back of the car,one from the front battery to the kill switch,and one back to the solenoid connection from the kill switch. ..... ,so the shut off switch kills both batteries. ......I prefer to run them inside the car,if possible ,away from the exhaust and eventual oil that will get on them. .......You can get some real nice bulkhead electrical terminals from Jeg's that eliminate holes with grommets............The rear firewall can be screwed ,riveted, or welded, just so it seals the trunk area. .....Tom

ron b · 11-22-2008, 02:58 PM

Quote:

Originally Posted by Tom Goldman

Ron to do it correctly you will actually need to run 2 positive cables to the back of the car,one from the front battery to the kill switch,and one back to the solenoid connection from the kill switch. ..... ,so the shut off switch kills both batteries. ......I prefer to run them inside the car,if possible ,away from the exhaust and eventual oil that will get on them. .......You can get some real nice bulkhead electrical terminals from Jeg's that eliminate holes with grommets............The rear firewall can be screwed ,riveted, or welded, just so it seals the trunk area. .....Tom

thanks tom, thats just the answer i was looking for. i also loke the bulkhead fittings,

George Mirza · 11-22-2008, 06:37 PM

The master shut off in a stocker is on of those grey areas. Some stockers will keep running when the switch is shut off. From what I understand if the trunk battery is only used to operate the cooling system then thats all the shutoff needs to kill. This second battery rule was intented to operate the cooling system only, to stop the practice of racers cooling the cars with cold water at the top staging. In a stocker the charging system must work and we must have a battery up front, so getting some to shut down gets quite complicated.

Most definately check with your Div.Tech director on this, some may look at it differently. If you go to a local track to bracket race, they will check it and you my have to explain it to them.

I run the cable through the trunk- drivers compartment to a insulated lug on the inside of the firewall, then a small gage wire to the switch for the waterpump/fan drive.

Good luck!
George Mirza

11-20-2008, 08:50 PM	#1
ron b Member Join Date: Mar 2008 Posts: 133 Likes: 0 Liked 4 Times in 4 Posts	stocker battery cable routing i am building a 68 mustang stocker and want to add a second battery in the trunk. should i run the positive cable inside the car or outside against the frame rail. also do they want the rear firewall completely welded. thanks ron

11-21-2008, 05:09 PM	#2
Tom Goldman VIP Member Join Date: Jan 2003 Location: Allentown,PA Posts: 2,474 Likes: 885 Liked 859 Times in 234 Posts	Re: stocker battery cable routing Ron to do it correctly you will actually need to run 2 positive cables to the back of the car,one from the front battery to the kill switch,and one back to the solenoid connection from the kill switch. ..... ,so the shut off switch kills both batteries. ......I prefer to run them inside the car,if possible ,away from the exhaust and eventual oil that will get on them. .......You can get some real nice bulkhead electrical terminals from Jeg's that eliminate holes with grommets............The rear firewall can be screwed ,riveted, or welded, just so it seals the trunk area. .....Tom __________________ Tom Goldman 1500 SG , 1506 STK

11-22-2008, 06:37 PM	#4
George Mirza Senior Member Join Date: Jan 2002 Location: North Attleborough Ma. Posts: 522 Likes: 0 Liked 0 Times in 0 Posts	Re: stocker battery cable routing The master shut off in a stocker is on of those grey areas. Some stockers will keep running when the switch is shut off. From what I understand if the trunk battery is only used to operate the cooling system then thats all the shutoff needs to kill. This second battery rule was intented to operate the cooling system only, to stop the practice of racers cooling the cars with cold water at the top staging. In a stocker the charging system must work and we must have a battery up front, so getting some to shut down gets quite complicated. Most definately check with your Div.Tech director on this, some may look at it differently. If you go to a local track to bracket race, they will check it and you my have to explain it to them. I run the cable through the trunk- drivers compartment to a insulated lug on the inside of the firewall, then a small gage wire to the switch for the waterpump/fan drive. Good luck! George Mirza