what do i need, headlights flicker
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=105935
Printed Date: May 18, 2025 at 5:00 AM
Topic: what do i need, headlights flicker
Posted By: draggin waggin
Subject: what do i need, headlights flicker
Date Posted: July 05, 2008 at 11:37 PM
I have an alpine mono amp (1000 watts rms) and a rockford 4 channel (400 wats rms total)
I put in an HO alternator (160 amps) and upgraded the big three to 0 gauge.
Buttt... my headlights are flickering.
What I don't have is a bigger battery, but I'm not sure if that matters.Is the alternator I have sufficient? Any recomendations would be greatly appreciates.
------------- yeah........
Replies:
Posted By: haemphyst
Date Posted: July 06, 2008 at 12:48 AM
You didn't say which mono amp you have, so I will assume a worst-case scenario.
1000/.60=1666 watts in
1666/14=119.5A
400/.6=667 watts in
667/14=47.6A
119.5+47.6=167.1
Your two amps, by themselves, can suck more curent than the alternator can produce. One of two things MUST happen:
1: You need more alternator.
2: You need less system (or don't play your existing system as hard)
That's what you can do.
------------- It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
Posted By: draggin waggin
Date Posted: July 06, 2008 at 1:12 AM
The mono amp is an alpine m1000 v-power which is running at 2 ohms.
I've been trying to find an alternator around 200 amps, but it's hard to find for my 89 civic wagon.
------------- yeah........
Posted By: robsatx
Date Posted: July 07, 2008 at 9:19 AM
draggin waggin wrote:
The mono amp is an alpine m1000 v-power which is running at 2 ohms.
I've been trying to find an alternator around 200 amps, but it's hard to find for my 89 civic wagon.
Have you checked with a local rebuilder to see if they can install a larger stator in your alternator?
Posted By: draggin waggin
Date Posted: July 07, 2008 at 3:20 PM
I don't think there is a rebuilder around, but I'll look into it.
I did find a iraggi 180 amp one for 300, which I can afford but I messaged him if there was a 200 one around.
If there is none available, would the 180 be fine, cause the rest of my car is stock.
------------- yeah........
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