Grounding question.

[alhope34]

I didn't know quite where to put this thread, thought it would fit best here.

Well, I just ordered new car audio, Hifonics Olimpia XXV 12" sub and matching Hifonics Brutus mono block amp, both running 3200 watts 1600 RMS. With the power of this system, I obviously have to upgrade the 8 guage I had wired for my 300 RMS setup, so I ordered a 2 guage kit with the sub/amp/cap.

When I had my other setup running, I obviously had the amp grounded to the floor in the trunk, to the body of the car, which is what I am doing when I receive the new equipment. The stock body ground, 8 guage I believe, to the battery was fine for the old setup but this system would overload that. So, I took the old 8 guage ground from my last amp, and basically doubled up the stock body ground wire to the battery.

My question is, will this create any negative affects for how the car drives? I got worried cause when I hooked it up I went to go for a drive, when I first fired the car it sort of half sputtered for a second or two, then acted normal. First time this has ever happened. Yes, I made sure all connections were triple checked before I fired it up. It all ran fine after that.

So is it completely safe to double up the body ground like I have?

[alhope34]

Ok, I have a second question for this thread, too.

With the amp/sub I also got an 8 farad capacitor, think this would power it fine with my stock battery, or should I get a yellow top?

[alhope34]

No one can answer the battery question??

[Noisy Crow]

So is it completely safe to double up the body ground like I have?

Can't see any reason why this wouldn't be completely safe. I can't possible think how this could hurt... did you disconnect the stock ground when you were installing the new one? That might explain the sputtering -- the ECU settings would have been lost and the ECU will need some time to figure out the right settings for your car.

[alhope34]

I took out the bolt from the body, left the contact on the body when I put the new wire contact on top, then put the bolt back in. Never took the terminal off the battery either. My ecu wasn't reset, all my radio stations and all my 6 cds were still saved in the car's computer. When the ecu resets, all radio stations lost and it has to go through each of the 6 cds again. Also, I get some hesitation under WOT and it feels really weak when it resets for the first 60kms or so, and I got none of that, pulled hard like normal. Thanks for re-assuring me.


Now, anyone have an answer for my battery question?