Cap or Alternator?
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=28480
Printed Date: May 21, 2024 at 3:43 PM
Topic: Cap or Alternator?
Posted By: Jay T
Subject: Cap or Alternator?
Date Posted: March 16, 2004 at 1:54 PM
8g wire to a fused distro block then 8 gauge to: 400w Kenwood 4 channel, 400w Power Inverter / PS2, 14 guage to: 10.4" lcd, and DIN DVD player. I haven't had any problems with the carging system or battery. Its a full size ford van. 100 or so amp alternator. My question is.... When I have big bass hits the lights on the the distro block (series of led's) dim like i'm drawing too much power. But all my electrical components IE headlights, dash lights, heater fan etc. don't even budge and I haven't seen them dim ever once. Is this a concern at all? Would a cap on the amp solve this problem? I don't really think its the alternator. Maybe battery? Mabye Upgrade Initial wire before block to 4g? Thanks! Feedback is greatly appreciated.
Replies:
Posted By: DYohn
Date Posted: March 16, 2004 at 2:26 PM
Your situation is one of the few instances where a cap might help you. It cwertainly won't hurt to try one.
Posted By: Jay T
Date Posted: March 16, 2004 at 2:28 PM
I thought it might, but after researching about 50 posts everyone is always saying "don't buy a cap you don't need it" I'll pick up a .5 or 1 farad cap and give it a shot I guess. couldn't hurt. Now, would I mount it between the battery and distribution block? or distro block and amp? thanks again.
Posted By: DYohn
Date Posted: March 16, 2004 at 2:42 PM
It really doesn't matter where it ties into the circuit. I usually suggest mounting them on the battery side of the distru block and using a seperate ground for them if you can. Basic circuit in case you need it: 
Posted By: customsuburb
Date Posted: March 16, 2004 at 4:15 PM
Try to keep it pretty close to the amp.
Posted By: cheagreen
Date Posted: March 16, 2004 at 5:54 PM
I would suggest investing in a HO alternator. It really makes upgrading anytime in the future, MUCH easier. ------------- Head Unit:Pioneer-Deh-1600
Fronts:Kicker 6x8 S57's
Front Amp:Coustic PowerLogic Amp460
Rear Fill:Stock 6x8's
Subs: 2 10" JL Audio W3's
Sub Amp: JBL bp600.1
Wiring: KnuKonceptz
Posted By: Jay T
Date Posted: March 16, 2004 at 6:03 PM
Thanks guys. I"m gonna try a .5 farad cap first only because my amp is relatively small and I don't think I"m having any alternator problems. After that I believe there is an OEM 130amp alternator for my van that should only cost me about $150. Thanks for the help
Posted By: superstreet786
Date Posted: March 16, 2004 at 7:07 PM
just get a high output alternator
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---- 1996 Chevy S10 ----
1 Lightning Audio S2.600.2 Amp
2 Lightning Audio 12" Subs
1 Lightning Audio 1 Farad Cap
Posted By: iwmaudio
Date Posted: March 22, 2004 at 11:13 AM
Just remember that caps are like a band aid and they don't ever solve the problem 100%, especially if you are planning on adding more stuff in the future. The way I refer to it is that the alternator is the heart of the vehicle's electrical system, and with a big strong heart, anything is possible, but with an average heart (alternator) you will get average performance. Everything in the car electrically is based on the performance of the alternator, and a high output alternator will allow you to solve your problem and upgrade in the future. They aren't cheap, but they aren't expensive either. If someone is willing to spend over $3000 for a system, then what is spending $250-$400 to make sure it all works properly and efficiently. If interested in a high amp alternator, just let me know the year, make, model, and engine size and I can let you know what we can do...
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Posted By: Jay T
Date Posted: March 22, 2004 at 1:57 PM
Thanks for all the input dudes. I'm gonna go with a Cap first mostly because I haven't hade and failing alternator signs or anything like that. Secondly because my amp is fairly small and can't really be drawing that many amps. If I do need an alternator though. I'm gonna go with a Ford OEM one. They make higher output ones that bolt in to my application painlessly, and are relatively cheap compared to aftermarket ones. Thanks Agian!
Posted By: forbidden
Date Posted: March 22, 2004 at 2:05 PM
I too would go with a cap first in this case, I agree with Dyohn, this is one of the few circumstances that warrant a cap may actually be a viable option and solve a identified problem.
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Top Secret, I can tell you but then my wife will kill me.
Posted By: Jay T
Date Posted: March 22, 2004 at 5:56 PM
Great. Now the only outstanding question is......... Distro Block powers: LCD, 2 small amps, power inverter. Should I use the cap before the distribution block or after between the block and the amp. Thanks Again
Posted By: Jay T
Date Posted: March 22, 2004 at 5:57 PM
Great. Now the only outstanding question is......... Distro Block powers: LCD, 2 small amps,DVD player, power inverter. Should I use the cap before the distribution block or after between the block and the amp. Thanks Again
Posted By: forbidden
Date Posted: March 22, 2004 at 7:48 PM
Ideally I would have it between the block and the amp.
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Top Secret, I can tell you but then my wife will kill me.
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