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amps and capacitor size?

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=103932
Printed Date: November 29, 2021 at 8:32 AM


Topic: amps and capacitor size?

Posted By: drummerjoe
Subject: amps and capacitor size?
Date Posted: April 12, 2008 at 5:53 PM

I am currently running 2 Insignia 1000 watt amps and a Kenwood 800 watt amp. What would be the best size of capacitor to run in my car? I have a 1998 Isuzu Rodeo 3.2L. I'm currently using 2 caps at 1/2 farrad each. I know that's too little but at the same time I don't want to over do it and take a chance on messing up my alternator either. Thanks to whomever reply's with an answer(s). :errr:

 



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Joe



Replies:

Posted By: wolf56
Date Posted: April 12, 2008 at 6:04 PM
ur gonna need a new altenator, with how much they charge for caps nowadays, ur better off upgrading to a h/o alt, and maybe 2 batteries

someone else more informed will be bound to post, and well, i dislike caps, my cap threw my entire system haywire and did next to nothing




Posted By: drummerjoe
Date Posted: April 12, 2008 at 6:06 PM
I just upgraded to a 70 amp alternator today. And a 90 amp one is almost 250 bucks. Which is nuts. I was also thinking of the 2 battery system as well. Thanks.

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Joe




Posted By: boogeyman
Date Posted: April 12, 2008 at 6:31 PM
  upgrade the BIG 3 ..and get the biggest alternator you can find for your car ..........dont get a cap.




Posted By: drummerjoe
Date Posted: April 12, 2008 at 6:39 PM
What is the Big 3?

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Joe




Posted By: slipitysmooth
Date Posted: April 12, 2008 at 8:10 PM




Posted By: drummerjoe
Date Posted: April 12, 2008 at 8:12 PM
Thank you, it's all so clear now

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Joe




Posted By: jettagli03
Date Posted: April 12, 2008 at 11:32 PM
wolf56.. your cap threw your system "haywire"? I'd like to hear this one.

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Posted By: KarTuneMan
Date Posted: April 12, 2008 at 11:46 PM

drummerjoe wrote:

I just upgraded to a 70 amp alternator today. And a 90 amp one is almost 250 bucks. Which is nuts. I was also thinking of the 2 battery system as well. Thanks.

This is in no way enough, even on a good day. Consider what the rig ALONE needs at night (lights heat etc.) then add a couple ams that will draw 20/30 amps ea. add anothe amp, the KW.

another 15 to 20. And I'm not talking about rolling the volume knob up and open either.... do this and draw even more. You upgraded to 70 ams? what the hell was stock?

A new alt. and a pair (exacly the same) of batteries designed for this type of use..... good to go......    remember, it takes power to make power !  (I love that saying)

Do the upgrades, the big3, and dump the caps.... their in the way.



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Posted By: wolf56
Date Posted: April 13, 2008 at 12:31 AM
the cap malfunctioned and was drawing power randomly, it was causing my lights to dim, i removed the cap and everythings fine, but i believe something in my amps a lil f*cked now cuz the amp shuts on/off, or the power light will dim, but ill never buy another cap




Posted By: DYohn
Date Posted: April 13, 2008 at 10:20 AM

drummerjoe wrote:

Thank you, it's all so clear now

Did you click on the link?



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