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Negative run of 1/0 to rear batt???

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Negative run of 1/0 to rear batt??? Empty Negative run of 1/0 to rear batt???

Post by baaudio Sun Mar 18, 2012 5:07 pm

Would adding a negative run of 1/0 from my front battery to the rear battery help my voltage? I currently have 2 positive runs of 1/0 from my front battery to the rear, then grounded to the frame. I've heard you can gain .3-.5 db with this so I guess its worth a shot


Last edited by baaudio on Sun Mar 18, 2012 10:10 pm; edited 1 time in total
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Post by stephen_og Sun Mar 18, 2012 5:29 pm

Or possibly running a 1-2 neg runs to the back would help as well..

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Post by RRR37 Sun Mar 18, 2012 9:53 pm

I was thinking of trying this out too. I'm grounded to the frame in back with 3 2/0's but my voltage just does not seem to match my setup. The frame is a solid chunk of metal, and conductive, but I'm thinking the resistance is not allowing enough return. With Negative runs of copper I will know that the resistance is not a problem. My question is, will it cause any issues leaving the frame grounds and just running a couple cables from front battery negative, to the point where my back batteries land on the frame? I'm guessing not, and since electricity follows the path of least resistance, the return will flow through the wire.
I will try this in a little while and let you know if I see a change.
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Post by baaudio Sun Mar 18, 2012 10:08 pm

I brought home half a spool of RF 1/0 so I'm gonna go ahead and do this on my day off tomorrow. The only thing I can think Ryan is that my rear grounds are on the right side of my frame and the front battery grounds are on the left of my frame, so they're really only connected by the frame rails welded between. So in this case I could see a benefit.
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Post by baaudio Sun Mar 18, 2012 10:12 pm

stephen_og wrote:Or possibly running a 1-2 neg runs to the back would help as well..
That's what I wanna do Stephen is add a run of neg since I have two of pos
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Post by Emery.H Mon Mar 19, 2012 2:06 am

Shouldn't see any losses, that's for sure. Nothing there but gains! I plan to do this as well, don't trust by rear battery grounds through the car to the front.
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Post by splcb7 Mon Mar 19, 2012 6:42 pm

I've only seen people gain from doing it so I don't think it can hurt to do I'm going to do it two hen I get some more wire......
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Post by RRR37 Mon Mar 19, 2012 8:41 pm

Just tested this on my ride. 2 runs of 2/0 welding cable from the front neg post to the location where my batts land on frame so they were directly connected through the lugs. No change for me. I will leave it as is.
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Post by baaudio Mon Mar 19, 2012 10:53 pm

i just finished this as well lol. my voltage holds better. still drops to 11.9 sometimes but it takes longer to get there if that makes sense. i think in my case it helped
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Post by RRR37 Mon Mar 19, 2012 11:32 pm

That's awesome man! I'm glad it worked out for you. I was really hoping it would improve my voltage also, but no luck. Voltage drops the same and score remains the same.
I'm sure it depends on the vehicle and build so I'm in no way saying it wont help others. Just wasn't an improvement for my specific build.
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Post by splcb7 Tue Mar 20, 2012 12:13 am

Try running from frame to frame. It might not be a gain but I know in unibody vehicles people gain from running a few runs from frame to frame might help some...never know...
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