Power Help

[irkorn18 10+ year member]

I just had to buy a new alternator for my 1993 Ford probe GT, because my system toasted my old one...and now I'm not wanting to have this one go out on me too. I had 2 Xplod amps, and 2 12" Xplod subs, hooked up to 2 batteries, then I gave one amp to my brother, and then I unhooked my front battery(has more cca, than front), and it has better power now, and I turned down my amp but still my battery meter is on the low all the time still...any way to help me fix this? Thank you.

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[Blove1991 10+ year member]

So unless I'm reading this wrong...your front battery is unhooked?

 

[irkorn18 10+ year member]

yes, I was unhooked, but now I use it, I'm trying to put a bigger battery in the front without having to modify too much

 

[irkorn18 10+ year member]

This is how my system is now, I re did it lastnight...I have my front battery wired(fused) to my amp, I cut out everything and it's running 6ga. so there's no cap, nor rear battery anymore. I went driving to see how it did, and it's still way too much power, I don't understand how it still cannot perform correctly.

 

[thevic24 5,000+ posts]

try upgrading the big 3

1- run a new wire (4ga or larger) from the alt. + to the battery +

2- run a new wire of the same size from the battery - to the body of the car

3- run a new wire from the body of the car to some where on the motor

 

[irkorn18 10+ year member]

Well, I upgraded to 4 ga. to ground my battery better, and it helped my power problem a lot, but I still can't turn up my subs as much as they can go, I have them on 2, when they can go to 15.

 

[thevic24 5,000+ posts]

Well, I upgraded to 4 ga. to ground my battery better, and it helped my power problem a lot, but I still can't turn up my subs as much as they can go, I have them on 2, when they can go to 15.

just dooing the ground wont be enough, the battery + to the alt + is very important as well as the motor to body ground.

here is an example-- i have a stock 70amp alt in my bronco(1985) and i run a ppi a600.2(draws up to 60 amps) and a fosgate 500x(draws up to 40 amps). i did the big 3 upgrade with just 4 ga and even with the ac on i have no power issues at all. even cranking on it, my voltage never drops below 13.2v. befor you go any further, upgrade the other 2 wires.

 

[snb778 5,000+ posts]

Well, I upgraded to 4 ga. to ground my battery better, and it helped my power problem a lot, but I still can't turn up my subs as much as they can go, I have them on 2, when they can go to 15.

have what on 2... the H.U. or the amp?

 

[irkorn18 10+ year member]

I'm going to go get bigger gauge wire, and do all three, I have 6ga. on alt to the battery, and battery to ground, and chasis to motor. The 2 that I have is the number for my subs, my cd player allows me to turn it all the way to 15, but I'm only at 2, and it takes a lot of power.

 

[savagebee 10+ year member]

try upgrading the big 31- run a new wire (4ga or larger) from the alt. + to the battery +

2- run a new wire of the same size from the battery - to the body of the car

3- run a new wire from the body of the car to some where on the motor

change "body" to "frame"

 

[irkorn18 10+ year member]

I have figured a lot of the problem out so far. I re did a lot to see if anything was wrong. I wired my battery to my cap(fused) and my cap to my amp(positive), then I took a negative from my amp to my body, and in a different spot, I seperately grounded my cap. I put my cap back in, because my lights still dimmed, and this helped me significantly. I can't have it turned up quite as much as I like because I think that my battery is weak, but I hope to get a new one soon, and hopefully that will help it. I did the big 3 over, too. Any more thoughts would be appreciated.