Having Trouble with Subs

[DziM]

Do You Leave The Car RUNNING While Playing That 3-4 Minutes Or Do You Just Charge Up And Then Turn Off The Engine?

Car is running + I am driving

 

[DziM]

So the problem is probably the alternator?

 

[cx-7heaven 10+ year member]

To run the system that you want, the whole electrical system( alt included) needs to be up before you get the new amp running. Do what I said in my prev post. Sometimes poor grounding between the batt/ alt/ engine/ frame can be a big problem especially on older cars. Some people havbe reported that big 3 was the cure for their poor electrical performance. IIRC the older pontiacs had 90 or so amp alts, which will not be good enough for any kind of decent sized system. If you get an upgraded alt without doing the big 3 first, you may keep having the same problems you are now. that is why I gave you the order that you must do you electrical in.

 

[AudioJunkie73 10+ year member]

what size wires are you running now. U said you have 1000 wayy amp on mids and highs plus the 500. You should have 0 gage power and ground already

 

[cx-7heaven 10+ year member]

1992 Grand Prix
1000cranking amps Battery (Brand New)

New big alternator (biggest we could find) i believe 200 (whatever they are rated at)

we also have a 1000watt amp going to the mids and highs

Is it a 1wire alt from jegs or summit or someplace? If so, you are probably putting very little current out at low/ medium rpm, and only able to get the 200 amps at high rpm. If you can, return it, and buy a good quality high output alt from ohio generator, iraggi, excessive amperage, just to name a few. They do alot better at low rpm than those others. DO THE BIG 3!!!! Have you done the big 3?