i'm relocating my battery to the trunk and want to put an inline circuit breaker at the battery. what AMP should i use? SummitRacing has circuit breaker ranging from 40 amp to 150 amp.

http://www.summitracing.com/parts/BSS-CB185-100/

 

Tim Ryan has one on his car, should ask him.

 

^ he's MIA the last several months.

 

I'm using a 150A with a yellow top. I haven't had any issues for about a year now.

If you go anything lower than 125A there's a chance that you will be popping it whenever you start your car.

 

I popped 2 different 150's after multiple starts while doing some startup tuning. They popped and wouldnt reset, the insides got all messed up. I would go 180 or 200. They are usually on ebay.

 

what's the minimum wire gauge do i need. want to save weight since it's mostly a track car. also, do i run the (+) and (-) to the engine bay or just ground the (-) to the trunk area.

 

Not that its the same, but Chau's battery is in the trunk of the 240, and its grounded in the trunk.

 

I have to agree with you...
I used a 180 amp circuit breaker... Looks great and performs as it should.. flawlessly!!
Tsunami 180 amp, no issues at all
http://www.sonicelectronix.com/cat_m...-breakers.html

 

^ sweet, i'll order that breaker. i'm going to go with 4 gauge wire and ground to the truck and see how that works out.

 

I would go with at least a 2 gauge minimum imho, for the battery. Thats what I ran for about two years with a pc680 grounded in the trunk. I upgraded to a higher quality cable so I decided to go 0 gauge. I weighed the difference and iirc it was 2-3 lbs between the the two sizes. That really isnt a big deal because its not effecting the balance of the car. The weight of the cable going to the trunk is distributed evenly on a low point of the chassis. Imo its much more critical to provide good clean power and ground to the battery. Your electrical system will thank you.

 

I have to agree with you... minimum should be 2 gauge...

I also went 0 gauge for positive cable, better safe than sorry

 

I grounded my negative cables to the trunk with no issues, I did do a redundant ground though... one ground on right side and one ground on left side...

 

I've been using a 150, no problems at all.

 

What gauge wire did you use? Will a 2 gauge wire work with that breaker?

 

I'm using 8 gauge wire and haven't had issues, wanted to keep the weight down.