Total rms vs. stock alternator
12-20-2006, 12:23 AM
#1
500 Watt CAFz'r
Thread Starter
Join Date: Apr 2006
Posts: 633
Total rms vs. stock alternator
Just curious to hear how everyones amps are battling their alternators.. but keep it civilized... don't wanna hear that you need to recharge your battery everyday.. so wat chew got?
12-20-2006, 12:26 AM
#2
Originally Posted by Sinemeup
Just curious to hear how everyones amps are battling their alternators.. but keep it civilized... don't wanna hear that you need to recharge your battery everyday.. so wat chew got?
Mark
12-20-2006, 12:54 AM
#3
130 amp alt
hawker 2150 batt
six 1/0 gauge positives
four 1/0 gauge frame grounds
six 1/0 gauge battery to amp grounds.
roughly 5,000 rms
voltage drops to 12.5 but not much past that. so i'd say my alternator isnt really doing anything, battery is feeding most of the draw.
hawker 2150 batt
six 1/0 gauge positives
four 1/0 gauge frame grounds
six 1/0 gauge battery to amp grounds.
roughly 5,000 rms
voltage drops to 12.5 but not much past that. so i'd say my alternator isnt really doing anything, battery is feeding most of the draw.
12-20-2006, 06:09 PM
#6
140 amp alt.
I have 6 Pioneer GM-5100T's. 4 are bridged so 4 x 380 wrms = 1520, 2 are stereo, so 4 x 125 wrms = 500. That means 2020 wrms. I don't play it that loud. since i have gains turned down on the rear speakers, i couldn't max them out without melting the comps and the subs.
I haven't blown the 100 amp fuse on the main power wire, so i guess i'm good. I turned it up once to see if the lights will dim. On Idle, as loud as i can go, i can just barely tell the lights dim a bit. But that might be because the 3 F cap is doing it's job.
But then, If I turn on the headlights, running lights, defrost (turns on the a/c), rear defrost (w/mirror defrost), heated seats, wipers, try to use the power windows and adjust the power seat, suddenly the stereo isn't as loud? Do ya think maybe the voltage drops a bit?
I have 6 Pioneer GM-5100T's. 4 are bridged so 4 x 380 wrms = 1520, 2 are stereo, so 4 x 125 wrms = 500. That means 2020 wrms. I don't play it that loud. since i have gains turned down on the rear speakers, i couldn't max them out without melting the comps and the subs.
I haven't blown the 100 amp fuse on the main power wire, so i guess i'm good. I turned it up once to see if the lights will dim. On Idle, as loud as i can go, i can just barely tell the lights dim a bit. But that might be because the 3 F cap is doing it's job.
But then, If I turn on the headlights, running lights, defrost (turns on the a/c), rear defrost (w/mirror defrost), heated seats, wipers, try to use the power windows and adjust the power seat, suddenly the stereo isn't as loud? Do ya think maybe the voltage drops a bit?
12-20-2006, 06:39 PM
#7
500 Watt CAFz'r
Join Date: Mar 2006
Posts: 509
Originally Posted by Tom.F.1
But then, If I turn on the headlights, running lights, defrost (turns on the a/c), rear defrost (w/mirror defrost), heated seats, wipers, try to use the power windows and adjust the power seat, suddenly the stereo isn't as loud? Do ya think maybe the voltage drops a bit?
lol my stereo is good too at about 14.4 volts until i turn on everything and suddently everything is real dim and the voltage just drops haha, i can watch the volt gauge bounce pretty good
lolim running about 1000 watts rms off a stock 90 daytona, cheap battery and 4 gauge all round
was going to do the big 3 but since im selling my car after winter and getting something better i decided i wont because im lazy haha.
12-21-2006, 07:59 AM
#8
50 Watt CAFz'r
Join Date: May 2005
Posts: 91
(GrizZz here, wife's PC)
140 amp CS144 alternator with a smaller pulley from a CS130D
Three Spiralcell batteries - daily
Two 8D CAT batteries and a single 2v locomotive cell (14.8v total, engine off) - competitions
Three full range amps running about 450w total
Two 1200d sub amps running at 2 ohm daily (1650w), 1 ohm competition (2400w)
About 75 feet of #2 welding cable
About 10 feet of #2/0 welding cable
One 1f cap
No dimming, unless I'm running at 1 ohm and trying to make myself go deaf. Crank it up for a commute and you can feel the drag from the alternator, but no dimming.
140 amp CS144 alternator with a smaller pulley from a CS130D
Three Spiralcell batteries - daily
Two 8D CAT batteries and a single 2v locomotive cell (14.8v total, engine off) - competitions
Three full range amps running about 450w total
Two 1200d sub amps running at 2 ohm daily (1650w), 1 ohm competition (2400w)
About 75 feet of #2 welding cable
About 10 feet of #2/0 welding cable
One 1f cap
No dimming, unless I'm running at 1 ohm and trying to make myself go deaf. Crank it up for a commute and you can feel the drag from the alternator, but no dimming.
