Bad Voltage Problem...

[CJL 10+ year member]

Right now my setup is(see sig) and I have BAD voltage problems. I believe my problem is that I have a 2ga wire from the front battery to the back(came with the car,to lazy to change it:crap: //content.invisioncic.com/y282845/emoticons/*******.gif.a649d21efc0d1fd4890a6428166586c1.gif ) where I branched 3 runs of 4ga wire off it to my 3 amps.

Now I was wondering if I ran 1 or 2 runs of 1/0ga from the front batt to the back for my amps should that cure my problem?

I also plan on upgrading to 2-4 Kinetic 2400's. //content.invisioncic.com/y282845/emoticons/yumyum.gif.0556df42231b304b9c995aefd13928a8.gif

Click to read more...

 

[djvi0lent 10+ year member]

why exactly is your voltage doing?

 

[djvi0lent 10+ year member]

Either way, I would definetly tear out all the old wiring, and run ATLEAST 1/0 cable to the amps. And as well the BIG 3 upgrade.

 

[audiolife 5,000+ posts]

2 2400's would work great

 

[CJL 10+ year member]

Already did the big 3.

I get serious voltage drop im talking from 14v drops to 10v. Then after I play a song or burp, my batt goes from charging @ 14v+ to charging to 12v plus my amps are regulated so that dont help at all.

But im also thinking my alt could be bad because shouldnt the alt charge @ 14+volts no matter how low the battery is or no? But if I disconnect the batt while the car is running the motor stays running so IDK..

 

[audiolife 5,000+ posts]

Already did the big 3.
I get serious voltage drop im talking from 14v drops to 10v. Then after I play a song or burp, my batt goes from charging @ 14v+ to charging to 12v plus my amps are regulated so that dont help at all.

But im also thinking my alt could be bad because shouldnt the alt charge @ 14+volts no matter how low the battery is or no? But if I disconnect the batt while the car is running the motor stays running so IDK..

an alt can drop depends on the load on it. it will not stay at 14.4 at 200 amps

 

[CJL 10+ year member]

an alt can drop depends on the load on it. it will not stay at 14.4 at 200 amps

when i put the DMM on it the car is idling with no load and its still charges @ 12-1.89volts //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

 

[audiolife 5,000+ posts]

when you rev does the voltage go up? if so get a smaller alt pulley

 

[Blove1991 10+ year member]

I know a guy who did another run of 1/0 and gained 1.2 volts....

Run a couple runs of 1/0

 

[jaco 10+ year member]

is it a stock alternator?

i'll bet that's alot of your problem.

if it's stock or weak you'll get major voltage drops cus the alternator can't keep up with the demands of your system.

 

[azimuth 5,000+ posts]

i switched from 2 guage to 0 guage recently. i can still drop voltage under 10 volts. it was a small help. i just need an alternator, bottom line. you probably do as well.

 

[audiolife 5,000+ posts]

he already has a 220 amp alt...