doubling up the system, few questions

[Neothin 10+ year member]

Right now a Scion tC with-

2x jl 10w6v2's

eD NINe.1

eDi6500s

eD NINe.2

d34/78 yellowtop

stock 95 amp alt

right now i'm running a claimed (@12.5v mind you) 1400 watts RMS in the car, but in the next couple of weeks i'm doubling up on the number of subwoofers and adding another NINe.1 bringing the RMS up to a claimed 2600 watts. As it stands right now, I already get a little amount of dimming with everything running full tilt, so i'm certain the electrical is not enough to support another large amplifier. Here's what I had in mind to solve that issue-

replace optima with a kinetik HC1800

put a kinetik HC2400 into the trunk

upgrade the alternator

main question is... how large of an alternator will i need to support this? I want less dimming than i have now, but ideally i want to be able to drive at night and have zero dimming issues.

Next, with the power draw increase, and the additon of the 2nd large battery in the trunk, will the single 1/0 run to the back be sufficent or should I run a 2nd line between the batteries?

Concerning the grounding in the back, would it be best to ground the amplifiers directly to the trunk or back to the battery and then have a single/double 1/0 ground to the trunk? Would it be better to run 1 or 2 1/0 lines back to the front battery (i've heard unibody cars arent the best for grounding)?

thanks //content.invisioncic.com/y282845/emoticons/graduate.gif.d982460be9f153bb54e5d4cb744f6ae8.gif

Click to read more...

 

[CRAZYCORNUTS18 10+ year member]

as for the grounding just ground it to the back seats works fine in my tc

 

[trunks9_us 10+ year member]

I want a scion tc //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

as for the grounding just ground it to the back seats works fine in my tc

 

[Blove1991 10+ year member]

Run a power and ground from the 1800 to the 2400 and ground your amps off the 2400 and both of your positives off the 2400

Do the big 3

What size alts do they make for your car atm?

EDIT: Is the HC1800 going to be your under hood battery?

 

[Neothin 10+ year member]

Forgot to add that... big 3 is already done in 1/0 (connections were properly sanded down, etc)

I havent seen any alternators for my car just yet.... I was hoping to either get a stock respun or upgrade to a large casing if necessary (and get brackets made to get it to fit).

yeah, hc1800=under hood battery