Interested in both 1/2 and 1 farad capacitors... Let me know what you guys have.

11/5/2006 5:55:18 PM

flux capacitor?

11/5/2006 6:51:40 PM

^ real funny smartass

11/5/2006 7:59:24 PM

why do u think u need 1

11/5/2006 11:38:41 PM

^what he asked.

11/5/2006 11:44:49 PM

that's what car audio cparciors are usually rated at

11/5/2006 11:45:56 PM

I = dQ/dt = C (dv/dt)

11/5/2006 11:46:33 PM

that and the fact that my alternator has finally been worn out. I figure that at 500 watts rms (800 peak), a 1 farad will be enough. I have a friend that has a slightly smaller setup, so a 1/2 farard is all he needs. Anyone have anything? $130 for a new 1.2 farad is a bit high. Then again, that's also what I just paid for a new alt

11/6/2006 9:29:39 PM

if your alternator is worn out and/or is going bad then gettin a capcaitor will just make things worse. your better off usin that money to 1) buy a larger alternator 2) buy a larger battery 3) upgrading your big 3 wires or some combination of those 3.

11/6/2006 10:22:33 PM

What voltage you looking for?

11/6/2006 11:26:20 PM

This would be in a car, so it would see up to 14.4 volts, but realistically it would see about 12.8-14v. Most car caps are rated to 20v.

Don't get a cap. You don't need it for your setup, and if you already have problems you are going to make it worse.

11/6/2006 11:28:24 PM

^^^^u do not need a cap by any means- save the money and buy a new alternator-

11/6/2006 11:53:34 PM

from what I have read he has already bought a new alternator....

depending on the car a cap may help... if you have an SUV more than likely a new alternator along with a good battery and a 1 farad cap should do well....

if you have something like a honda accord I would look downgrading your system or upgrading to a bigger altenator from the one you just bought....

Usually systems carrying 500watts rms do not have a great affect on your car(this is not a lot of power) seems maybe not only your altenator was bad but your battery may need to be tested also...

Now when you get into try to push power like MaximaDrvr then you should start to run into altenator problems

11/7/2006 10:23:22 AM

Zc = 1/jwC

11/7/2006 10:38:16 AM

Sorry, you guys misunderstood me. I have a new alternator. I don't want to go about ruining the next one. not that I've done much research, but I don't think I can get a bigger alternator for the 944. Bigger battery? I've got a pretty big one. I figured a capacitor would help prevent my next alternator from burning up and dying. Yeah, I could use bigger wires... (using 8 guage at the moment). Still... any suggestions?

11/7/2006 6:38:56 PM

P = Cv dv/dt

[Edited on November 7, 2006 at 6:53 PM. Reason : ]

11/7/2006 6:52:56 PM

Is a 115 Amp Alternator not small?

11/7/2006 8:33:10 PM

That is a decent sized alternator. You definately don't need to get something bigger for what you have. Try upgrading your power wire and possibly the big three.
A cap is a bandaid for bigger problems.

Also, alternators do go bad. You ever think that the two are unrelated?

11/7/2006 9:02:50 PM

i have a 137amp alternator and i'm running 1000watts to my sub and 600watts to my mids and highs all rms . i've done my big three and i'm running a decent sized walmart battery. i've never killed my alternator and the oly time u see my lights dim is at close to full tilt while i'm idling. so yea skip the cap and do your big three and upgrade the battery if possible.

11/7/2006 10:07:30 PM

I am running a 120A alt to my
JL 1000/1 -sub
JL 300/2- fronts
JL 250/1- sub

No problems yet.

11/7/2006 11:25:01 PM

agreed, upgrade the wire first, it will be the cheapest, that alt. is definitely big enough, im running 450watts off my 110amp alt and its fine, how many cca's and ca's is your battery putting out, if you think your alt is not performing right take your car to advance auto and have them test your alt, while they are testing it turn on your system about 2/3 or what you usually listen at. if its fine upgrade to a 4 gauge wire.

11/7/2006 11:34:48 PM

mk. sounds good.. thanks for the responses guys.

11/8/2006 7:53:51 AM

http://www.cardiscountstereos.com/WireGuide.asp

At peak power you will also be running about 60 amps with the battery putting out 14 volts supporting 800 watts. 4 gauge should be fine, but from my understanding this should not cause your alternator to go bad. If anything it should cause your amp to not perform properly(cut out or blow fuses).

11/8/2006 9:44:45 AM

Stop buying your alternators @ Auto Zone

11/8/2006 3:14:49 PM

^^ I can see how upgrading the cables will help deliver the power to the amp and all. I don't really understand how it will prevent my alt from going bad. Anyways, I don't recall the alternator ever being replaced (not in any of the records), so it could have just gone bad with age. With that said, I guess I'll just keep my current setup, and consider upgrading cables when I have money laying around saying "spend me".

^actually, i bought it from 944online.... nt gg

11/8/2006 6:08:16 PM

Ive got the cap in my gallery for sale

11/9/2006 5:41:16 PM