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  • The dedicated capacitor argument thread! :-D

    [img]graemlins/rofl.gif[/img] Thought I'd make a place for us to discuss our thoughts on this highly debated topic. Everyone will probably learn a thing or two and it should make for some interesting conversation. Just to stir things up a bit. [img]graemlins/naughty.gif[/img] My thoughts... [img]graemlins/popcorn.gif[/img] IMO caps aren't useless.
    *Dodges popcorn thrown*
    Tons of people have a small amount of headlight dimming. They throw a one farad cap on there. Problem solved and plays perfect for years. Hundreds of people (including myself) have been doing it for forever. Call it useless, call it whatever you want.... it works. Nobody can argue that. And, true, nobody can argue that they do indeed place an additional load on your alternator. But, as been said, they do it during low power times in the music. During high power times, they release their charge and ease the strain normally on the alternator. Basically, just smoothing the peaks and valleys in voltage. Example:
    Before cap

    After cap


    A H/O alt is not everyone's answer. Those people with a small amount of headlight dimming will have their problem solved with a single farad cap. Keep in mind though that the alternator cannot keep multiple caps charged even during low power times in the music. That's when it's time for a H/O alt. Also, don't forget the price of multiple caps vs a H/O alternator. Caps are roughly $60 each and a H/O alt is roughly $180. So anymore then 2 farads is pointless financially. Everyone here is pro H/O alt. Just wanted people to see another side of the story. Now let's see what others have to say [img]smile.gif[/img]

    [ March 07, 2005, 02:20 AM: Message edited by: 96firebird311 ]
    Red 96' A4 Firebird
    Audio Audio and Autotek
    Check it out here!

  • #2
    im looking into a H/o alternator right now vs. a 1 farad cap. wouldnt it be better/safer to just get the HO alt and screw the cap.

    p.s i havent even installed my system yet, i want this all done before i set it up.
    Dave:
    00 Supercharged Camaro - RIP
    97 Turbo Camaro - Sold

    Comment


    • #3
      Originally posted by dmw319:
      im looking into a H/o alternator right now vs. a 1 farad cap. wouldnt it be better/safer to just get the HO alt and screw the cap.

      p.s i havent even installed my system yet, i want this all done before i set it up.
      HO Alt all the way man.

      Comment


      • #4
        how exactly would you wire a cap use pos from bat and use a ground (not the battery), or pos and neg from battery? need help on this plz just thought about it.

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        • #5
          Originally posted by red93camaro:
          how exactly would you wire a cap use pos from bat and use a ground (not the battery), or pos and neg from battery? need help on this plz just thought about it.
          It doesn't matter.

          Wow. I'm surprised this topic isin't on fire already. Speaking of which, firefighter? :D
          Red 96' A4 Firebird
          Audio Audio and Autotek
          Check it out here!

          Comment


          • #6
            Caps are useless and its just a waste of money. If you want one because of the voltage readout, buy a voltmeter. Other than that they are just for show and a complete waste of money.

            H/O alternators are not much more expensive than a stock alt so, if your stereo is killing/overloading/killed your stock alt I see no reason why not to spend a couple $ more on a H/O one.

            STICKY!!!!!!!!!!!
            2005 Cavalier LS Sport M5<br /> <a href=\"http://members.cardomain.com/firefighter8615\" target=\"_blank\">http://members.cardomain.com/firefighter8615</a>

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            • #7
              Originally posted by FireFighter:
              Caps are useless and its just a waste of money. If you want one because of the voltage readout, buy a voltmeter. Other than that they are just for show and a complete waste of money.
              I have heard you say this a bagillion times. I was hoping for a post more with actual evidence, reasoning, speculating or even theories. So I gotta ask, why do you think this way? [img]smile.gif[/img]
              Red 96' A4 Firebird
              Audio Audio and Autotek
              Check it out here!

              Comment


              • #8
                For how much they cost many people that may only need a cap could do the big 3 and have the same results.
                2005 Cavalier LS Sport M5<br /> <a href=\"http://members.cardomain.com/firefighter8615\" target=\"_blank\">http://members.cardomain.com/firefighter8615</a>

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                • #9
                  i hve a $89 3 pharad i got off ebay it solved my problems with the amp cutting out.... and lights don't dim any more..... i don't know only way to test is with a amper meter
                  www.turbov6camaro.com
                  1997 3800 Series II Camaro
                  4600 Stall for my ride to the mall :chug:
                  7.18 @ 99.77 1/8 -1.8x sixty (current quickest v6 fbod)
                  11.23 @ unk 5 1/4 - 7.19 1/8 - 1.83 sixty

                  Comment


                  • #10
                    WHY DO PEOPLE BUY CAPACITORS?

                    The number 1 reason would have to be because their lights dim when their
                    system is playing HARD. In car audio, we are told that a capacitor is
                    designed to prevent the voltage drop associated with your lights dimming.
                    The number2 reason is that it is rumored to 'improve' sound quality or
                    'stiffen' the power supply/source.


                    HOW MUCH POWER DOES A CAPACITOR STORE?

                    1 Farad = 100 joules or 100W/second
                    850cca battery = ~2,200,000 farads

                    For storage purposes, you'd need ~2,200 1 Farad capacitors to equal the energy of your battery.

                    Due to its impedence (ESR & ESL), a cap's energy is only 50% available. What's worse, is that in order for a 1 Farad cap to discharge, first the alternator output must have maxed out, and the voltage must have dropped around 1.5 volts. But I thought a cap was supposed to prevent that (voltage drop)!!!!!????? Yep, you got the point.


                    IF A BATTERY = 2,200 CAPS, THEN WHY BUY A (PUNY) CAP?

                    My question exactly. Marketing is the reason why people buy caps. In many cases, upgrading wiring will help your system get the maximum transfer of current. Once that has been reached, adding a capacitor may have a minor effect on your system. 50W over the course of a second is not a lot of power considering an amplifier may draw 2000W to put out 1400 watts.


                    SO, WHAT IS A CAPACITOR GOOD FOR?

                    1. Audio Jewelry- impress chicks with large cylindrical shiny thingy
                    2. Extra weight in winter time
                    3. A very POOR... BUT expensive distribution block
                    4. A projectile in the event of a crash
                    5. Rolling pin--for cooking purposes
                    6. A neat thing to tell your friend, "..Hey man, lick the top of this..


                    Please do not try # 6. New hairstyles are always refreshing, but if you are wearing railroad tracks across your teeth, you might have one big filling after it’s over. [img]tongue.gif[/img]

                    HOW CAN CAPACITORS IMPROVE SOUND QUALITY?

                    They can't. Sound quality is not dependant upon the presence of large bulky 1 Farad capacitors. How many 1 Farad Capacitors do you think the Boston Pops, Aerosmith, or Snoop dog use in the recording studio?

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                    • #11
                      what exactly is the big 3 ?

                      Comment


                      • #12
                        ^^^ Just a couple of IMPORTANT wires for a proper electical system. Look around a bit, you will find it.


                        STICKY STICKY STICKY STICKY STICKY!!!!!!!!!!
                        2005 Cavalier LS Sport M5<br /> <a href=\"http://members.cardomain.com/firefighter8615\" target=\"_blank\">http://members.cardomain.com/firefighter8615</a>

                        Comment


                        • #13
                          as much as i cant stand firefighters attitude, i am following his and CAMAROWIDBASS's advice. it makes more sense to me.
                          Dave:
                          00 Supercharged Camaro - RIP
                          97 Turbo Camaro - Sold

                          Comment


                          • #14
                            i dont think they have attitude they just kno what their talking about... i didnt kno 1 Farad = 100 joules or 100W/second 850cca battery = ~2,200,000 farads ya kno who knew ? lol

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                            • #15
                              hehehe This is fun. [img]graemlins/rofl.gif[/img]

                              Anyone can read articles such as that one. I was expecting an in your own words type thing, but whatever. Wanna get some more people in on this. [img]smile.gif[/img]
                              Red 96' A4 Firebird
                              Audio Audio and Autotek
                              Check it out here!

                              Comment

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