Ive read the faq and done some searches...basically are capacitors not really necessary in the S?

I have a 2000, and I think still using the original battery. It may have been replaced once, not positive.

Id be running a decent system, 2 amps, a 10w6 sub, components etc. But total ampage is probably goign to be right at 800watts where the faq said should be okay. a ~500watt alpine amp, and 300/2 jl. Would a cap be necessary?

Is this sort of a test it out and see what happens deal? Go without one first, and if lights dim..get one?

 

You shouldn't need it if you have a good strong battery. If you have the stock battery you might see the light dim every once in a while. The good news is, is that you can add them in any time

 

If your system is large enough to make the lights dim then you are exceeding the current capacity (as in amps) of the alternator/battery. Adding a cap may minimize the dimming but will not increase the power output of the total system. It's a sign that you may be better off with a higher capacity alternator.

 

ah. The plot thickens. Thanks modifry

 

It never hurts to add a cap...that is if you connect it correctly. It will help to smooth out any power spikes so it doesn't look like you have strobe lights in your dash. Plus, that 800W is maximum output power, so you have to keep in mind that some amps are less efficient than others and can take a lot more power to make that 800W.

 

where can you get better alternators?

 

Denso makes a direct 120A replacement for our cars.