okay so my system currently consists of 2 kicker cvrs with a 3.5 farad capacitor and a 1000 watt rms audiopipe amp and i have 4 gauge power wire. SO i will also be adding 2 more 12s into my car along with another 900 rms amp its a hifonics brutus brz 1200 ill have it at 2 ohms and ive used this before at the same time but had 2 10s instead. So my problem is is when i hit lows or big bass i get a nasty voltage drop mostly down into the lower 12 volts but sometimes itll reach around 11.5 i will be adding another 2 farad capacitor and this IS NOT to fix volatage drops this is because it helps improve sound quality. SO my thing is how can lessen this volatage drop? Now would upgrading the big 3 help alot cause i heard it would? I cureently either have 6-8 gauge wire on my big 3 and will be willing to upgrade to 2 to 0 gauge wire will that help my voltage drop? and please dont say just buy another battery or something or alt cause im trying to save the rest of my money and dont want to have haul out big cash so any suggestions please help.
Update:yes but im not talking idle im talking about when my car is running when the voltage meter read 14.4 i dont want i to drop below 13 is what im saying and ive had 1600 rms running on my system before the only cons are 2 volt voltage and dimming of headlights and thats it and ive read many times where peope had 2000 rms running on stock items and there system was fine
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Unfortunately, the only way you are going to stop voltage from dropping below 13 volts is by adding a high power alternator. A normal car battery has a resting voltage of around 12.5 volts, an alternator usually charges at around 13.8 volts. The extra voltage from the alt, is to overcome the resistance of the cells of the battery, allowing it to charge. The battery is just a storage device, used for starting the vehicle, and help provide some power when the alt is spinning very slowly, (idling at stoplight, etc.) Say your stock alt puts out 100 amps, about 65 to 75 of those are designated for vehicle operations, so you only have about 30 or so amps left for accessories. When the current draw has reached its peak, voltage drop occurs. Batteries can't supply voltage that they're not getting. To stay at, or above 13 volts, you are going to need a hefty alternator for street use, or for a competition setup, you would need to change to 14 volt batteries, and a 16 volt charging system.
I will start off by saying that 1900 RMS is too much for a stock battery, or even one battery for that matter.
Yes the big 3 will help out a lot because it allows for more power to be transferred from the alternator to the battery. Therefore a faster charge of the battery. The ground is common sense. A better ground is required if more power is going through a wire. In this case the power wire and alternator positive.
I usually recommend the big 3 to be done with any more than 1000 RMS.
Although the big 3 will help immensely with the 1000RMS you are running right now, but it will not do for 1900RMS.
You need a second battery when you add the other amp weather you like it or not.
given it is charging, the ecu is offering an exciter cutting-edge. i might examine the engine floor in the previous performing the different exams. The voltage drop between the unfavorable submit on the battery and the attaching factor on the engine block might desire to be no extra advantageous than a million/2 volt with the biggest interior the on place.