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Discussion Starter · #1 ·
So I've been browsing eBay looking for caps. I came across this guy pc20f cap.

There are several others... Are these high resistance super caps or something? I know super caps can't discharge as fast as regular caps.... But a massive amount or parallel super caps could compensate for the low discharge rate of a single 1.

Am I even close to being right? Lol
 

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1) why would you want it, caps do very little for car system. and 20 farads is retarded. for the money and space that will take up. buy a second battery.
2) there is nothing to support that a 20 farad cap will discharge slower than a 1 farad cap, except for the fact that it is 20 times bigger. the rate will be the same.
3) $60 for 20 farads??? junk, plain and simple.
 

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1) why would you want it, caps do very little for car system. and 20 farads is retarded. for the money and space that will take up. buy a second battery.
2) there is nothing to support that a 20 farad cap will discharge slower than a 1 farad cap, except for the fact that it is 20 times bigger. the rate will be the same.
3) $60 for 20 farads??? junk, plain and simple.
I agree, you pay for what you get.....
in this case you'd be doing nothing but loading down your electrical system. you'd be better off getting a small kinetik battery like the khc600 which would do SO much more for your amps than a cap.
 

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Discussion Starter · #4 ·
I was considering a 3-4f cap as well as a 2nd battery. My 6x9s alone dim my lights.... Lol only 55w rms to each. Now add in the 4000w amp... Which realistically can't enough power from my car to even get 1degree warmer than my trunk. Not enough power to completely utterly destroy a Sony xplod.

So, I'm thinking a 3-4f cap and a big ass battery in my trunk lol.
 

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if your lights are dimming off of deck power. dont bother with an amplifier until you replace the alternator.

a bigger battery willl only get you more time until it has to go on the charger, since your alternator is not keeping up. A CAP will do nothing at all, dont waste your money.
 

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Discussion Starter · #6 · (Edited)
Car not worth an alternator lol. The 6x9s are on an amp.
This Is my set up: power
65a alternator, 500cca battery. Power wire is 6g(need thicker).
My system includes a Sony xplod deck, Sony xplod 600w 4 channel, planet audio 4000w amp(ya right but it pounds lol), sound stream Tarantula 6x9, Sony xplod 10inch sub(I wish it would xplod).

I've got my deck hooks in via the high power signal into the Sony amp. Faceplate LCD is messed up, but I got another coming so I can change it to RCA.

Mostly I use my phone as mp3 player. RCA to planet audio amp, then from that amp it goes to the Sony.


Edit: I spoke with a friend who also had a 4000w amp. He bought a 30f cap and still needed a 2nd battery.... I doubt his cap could dis charge fast enough. Ultra and super caps have a high internal resistance. This makes them slower on this discharge and recharge. In an audio system, you need power now. That's why we have caps. That's why good caps cost more, faster discharge rate.
I honestly think my battery is the main fault. It can't discharge fast enough. The alternator shouldn't power your sound, the battery should.

Lights only dim(slightly) when using the deck for 6x9. With only my phone and no sub, lights are fine..... Until the sub kicks in.

Deck is 1 of those "208watt" things- I can't wait to convert it all to RCA. And use the aux port on my head unit.

My set up is only a little ghetto.......... Ok maybe a lot ghetto lol. Once a few more things come in, car is getting an upgrade all around.

Now if I could fit a bigger battery under the hood, I would. But there is no room to expand. So I will stick it next to my sub. Thinking maybe a big tractor battery in spare tire well, being there is no spare lol
 

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Honestly, I would look at using smaller wattage amps. At 65amps, and only a 550cca battery, your electrical system simply cannot keep up with what youre trying to run. Either use lower wattage equipment or a much larger alternator. I was in your shoes with an Escort, and I couldnt run an 800x1 amp off the stock electrical system, so I swapped it out with one about half the power and still couldnt push it. If you try to push your electrical system that hard, all you will do is kill your alternator, battery, and you will still never see the performance you want to see. Even putting a larger battery wont fix the problem. Youre stereo system will draw more power from your battery than your alternator is providing the battery. And the Alternator cant provide enough power to your system AND the car. (And in the end a stereo is no good is your car's electrical cant get enough power to run right.)
 

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Car not worth an alternator lol. The 6x9s are on an amp.
This Is my set up: power
65a alternator, 500cca battery. Power wire is 6g(need thicker).
My system includes a Sony xplod deck, Sony xplod 600w 4 channel, planet audio 4000w amp(ya right but it pounds lol), sound stream Tarantula 6x9, Sony xplod 10inch sub(I wish it would xplod).

I've got my deck hooks in via the high power signal into the Sony amp. Faceplate LCD is messed up, but I got another coming so I can change it to RCA.

Mostly I use my phone as mp3 player. RCA to planet audio amp, then from that amp it goes to the Sony.


Edit: I spoke with a friend who also had a 4000w amp. He bought a 30f cap and still needed a 2nd battery.... I doubt his cap could dis charge fast enough. Ultra and super caps have a high internal resistance. This makes them slower on this discharge and recharge. In an audio system, you need power now. That's why we have caps. That's why good caps cost more, faster discharge rate.
where did you get this idea? it is absolutely false! most caps internal DCR is so low that you can weld with them! they will discharge all 30 farads in milliseconds! in fact if you short them out, alot of the time they will explode.
I honestly think my battery is the main fault. It can't discharge fast enough. The alternator shouldn't power your sound, the battery should.

Lights only dim(slightly) when using the deck for 6x9. With only my phone and no sub, lights are fine..... Until the sub kicks in.

Deck is 1 of those "208watt" things- I can't wait to convert it all to RCA. And use the aux port on my head unit.

My set up is only a little ghetto.......... Ok maybe a lot ghetto lol. Once a few more things come in, car is getting an upgrade all around.

Now if I could fit a bigger battery under the hood, I would. But there is no room to expand. So I will stick it next to my sub. Thinking maybe a big tractor battery in spare tire well, being there is no spare lol

You are absolutely wrong on the second point. your alternator is going to have a higher voltage than your battery and ALL you electronics will run off of that unless the alternator doesnt have enough current to keep up. in this case the voltage will fall until it hits battery voltage and then the battery will kick in. this depletes the battery and it will eventually go dead. a higher current alternator is the ONLY solution. the alternator makes energy, the battery only stores it. also your battery can discharge at a rate of several hundred amps. more than your systems draws. that has nothing to do with anything.
one more thing you should know about vehicle charging systems. the more items that system has to charge the more stress you put on it. extra batteries, for example will make your alternator work even harder. now it has to keep 2 batteries charged instead of one. you will only make the problem worse.
 

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Discussion Starter · #9 ·
I've been looking for A spot for a 2nd alternator... No room.
Is there a few standards for alternators or is everyone different?

I've got a 1995 Mazda protege lx - 1.5l beater car lol. It's hard to invest in something I cAnt take out for another car.

Now questions about a 2nd alternator. I just wire it up in parallel with my current 1 or do I need some weird blocking device or something.

I know the sts Seville uses a 150amp alt. That with mine should give me plenty of power. And the alternators usually last longer than the engines in those... So salvage yard here I come. I do what I can on the cheap side.

So, I just want to clarify, I need a big/second alt? I've looked around and they have 70a alternators for my car. Unless I have it reworked, that's all I got. Lol

Now alternators(not super huge), can they keep up with the sudden demand of power produced by deep bass? Isn't that where a cap takes over for a moment, giving the alternator time to get back up to speed or something?


I have a feeling I'm going to have a lump on my hood like there's a turbo in my car... And it's just another alternator lol
 

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I've been looking for A spot for a 2nd alternator... No room.
Is there a few standards for alternators or is everyone different?

I've got a 1995 Mazda protege lx - 1.5l beater car lol. It's hard to invest in something I cAnt take out for another car.

Now questions about a 2nd alternator. I just wire it up in parallel with my current 1 or do I need some weird blocking device or something.

I know the sts Seville uses a 150amp alt. That with mine should give me plenty of power. And the alternators usually last longer than the engines in those... So salvage yard here I come. I do what I can on the cheap side.

So, I just want to clarify, I need a big/second alt? I've looked around and they have 70a alternators for my car. Unless I have it reworked, that's all I got. Lol

Now alternators(not super huge), can they keep up with the sudden demand of power produced by deep bass? Isn't that where a cap takes over for a moment, giving the alternator time to get back up to speed or something?


I have a feeling I'm going to have a lump on my hood like there's a turbo in my car... And it's just another alternator lol

if the alternator has the capability to produce the current. then yes, it is instantaneous. we are talking about an electronic regulator.

if your headlights had a slight dimming to them due to hard bass hits, then yes. a 1 farad cap could mask that effect, a 30 farad cap is still retarded and will not had any benefit for you over a 1 farad cap. Also realise, that your charging system still has to recharge the cap for the next hit. so you are not getting something for nothing. you are simply stiffening the power system.

as for a second alternator, yes just wire it up in parallel, but I would just replace the one you have with a 100+ Amp and call it day.
 

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The only thing you can really do beneficially with caps line small ones in series to act as a power filter. However at that point you are better just investing in a voltage regulator or an amp with better power protection.
 

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The only thing you can really do beneficially with caps line small ones in series to act as a power filter. However at that point you are better just investing in a voltage regulator or an amp with better power protection.
caps in series block DC, wouldnt be a very effective filter, if your intention was to filter out all DC ;)
 

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Discussion Starter · #14 ·
Wish I could find 100+ amp alternators for my car. 70 is the biggest I saw lol.

My car is not supported by the aftermarket section of the world. Biggest aftermarket thing for my car is a paintjob.

I'm going to find a way to rig in a second alternator. When I get a new car some day, I'll take that alt with me lol.

Who knows of 150+ amp alt on a stock car/truck/van. I'm going to hit up salvage yards
 

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Discussion Starter · #16 ·
Interesting, considering Mazda didn't make a 1.6 in 95. They made the 1.5 and the 1.8. The 1.5(I have) is different from everything else :(

I should go to an auto store and see what they have. See if anything with similar bolt patterns.
 

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Discussion Starter · #17 ·
Looking around on their site, they have 1 for a 1.5l 1996... They didn't use thR 1.5 in 1996, that's when they introduced the 1.6 lol
 

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if it is the same bolt pattern , it will still work. I dont know enough about mazdas. call em. they are very helpfull
 

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Discussion Starter · #19 ·
Way out of my price range, but yeah, if it's the same bolt pattern I would have a world of possibilities opened up.
I'm considering getting some flat stock and making brackets, then adapting another cars to where mine is currently.
 

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Mazda and Ford are pretty much the same for the protege and escort. But honestly I dont know if adding a second alt would work for those cars, because they dont have much horsepower to begin with. And I cant remember them having enough room to shoehorn one in. Alternators really arent easily transferable from one car to another. The bolt patterns are different, as well as the output. If it was an alt for lets a GM truck or something like that, then maybe. I would search your area for shops that rebuild alternators and find out how much they would charge to rewind your current one. Even still as small as they are, I cant imagine them being able to get more than 100amps out of it. You could always search junk yards for a larger one, as long as the bolt pattern matches, but then depending on the type, there is the harness to worry about.
Personally I suggest saving up for a better alternator, keeping the current one, and if you ever get rid of it, pull out the better one and sell it, putting the original one back in.
 
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