Amart88 Posted May 20, 2012 Author Report Share Posted May 20, 2012 Did you ever test the voltage out of the alternator Not in a long time and not my me. Just at the batt bank. How do I check the alt with my DMM? almost blew my old dmm up once lol. can't remember the correct way to check it. My 2005 s10 blazer build. 4 zcon 18's walled. Link to comment Share on other sites More sharing options...
Junior Russell Posted May 20, 2012 Report Share Posted May 20, 2012 idk bout checking the amps but checking the voltage just set the dmm to dc/ac(i dont remember which) 20 volt and check it at the post like i said i dont know how to check amps with a dmm http://www.youtube.c...e1?feature=mheehttp://www.stevemead...87#entry1993187 JVC KD-R530 head unit VVME INNO-D1500 sub amp Kenwood KAC-8402 amplifierPioneer 2-way 6.5 X2 @ 4 ohms DTI Audio 6.5 X2 @ 4 ohmsbox: 4.24 ft^3 tuned to 61 hertz (port walls fell off and dissapeared ) Link to comment Share on other sites More sharing options...
Hotdog Posted May 20, 2012 Report Share Posted May 20, 2012 Positive lead to the power wire off the alternator and ground lead right on the alternator casing (NEW) 2004 F-150 Build Log -->http://www.stevemeadedesigns.com/board/topic/192208-hotdogs-f-150-build-log/ 2003 Mercury Mountaineer Build Log --> http://www.stevemeadedesigns.com/board/topic/114380-hotdogs-2003-mountaineer-build-log-20-removed/page__gopid__1602379#entry1602379 2008 Equinox Build Log --> http://www.stevemead...g/#entry1475764 Link to comment Share on other sites More sharing options...
fox_racin4 Posted May 20, 2012 Report Share Posted May 20, 2012 DO NOT GET A VCM they arnt making them right now.. youll pay and wait MONTHS i got one... spiked voltage into the 18v then screen stopped working.. sent it in and week after week i kept getting " were still waiting on parts/youll have it next week/were waiting on displays" after 4 months i tried getting my money back.. and was only givin a credit... 1998 gmc extd cab 12 crossfire C710s 4 SAZ-4500s 3 Singer 400A altsbuncha mids/highs Team Asshole Link to comment Share on other sites More sharing options...
Junior Russell Posted May 20, 2012 Report Share Posted May 20, 2012 thats some bullshit dude id raise all hell http://www.youtube.c...e1?feature=mheehttp://www.stevemead...87#entry1993187 JVC KD-R530 head unit VVME INNO-D1500 sub amp Kenwood KAC-8402 amplifierPioneer 2-way 6.5 X2 @ 4 ohms DTI Audio 6.5 X2 @ 4 ohmsbox: 4.24 ft^3 tuned to 61 hertz (port walls fell off and dissapeared ) Link to comment Share on other sites More sharing options...
Hotdog Posted May 20, 2012 Report Share Posted May 20, 2012 So anyway I see you ran 4 runs of 1/0 to back but did you do the Big 3? Suppose to have 1/0 ground from Alternator to Frame 1/0 from Alt Power output to Battery fused 1/0 From Battery negative to Frame (NEW) 2004 F-150 Build Log -->http://www.stevemeadedesigns.com/board/topic/192208-hotdogs-f-150-build-log/ 2003 Mercury Mountaineer Build Log --> http://www.stevemeadedesigns.com/board/topic/114380-hotdogs-2003-mountaineer-build-log-20-removed/page__gopid__1602379#entry1602379 2008 Equinox Build Log --> http://www.stevemead...g/#entry1475764 Link to comment Share on other sites More sharing options...
Amart88 Posted May 20, 2012 Author Report Share Posted May 20, 2012 DO NOT GET A VCM they arnt making them right now.. youll pay and wait MONTHS i got one... spiked voltage into the 18v then screen stopped working.. sent it in and week after week i kept getting " were still waiting on parts/youll have it next week/were waiting on displays" after 4 months i tried getting my money back.. and was only givin a credit... That sucks man but I REALLY need a VCM or my system is useless. If I can't get an XS one is there any other companies that make them?? I'll call them tomorrow My 2005 s10 blazer build. 4 zcon 18's walled. Link to comment Share on other sites More sharing options...
Amart88 Posted May 20, 2012 Author Report Share Posted May 20, 2012 So anyway I see you ran 4 runs of 1/0 to back but did you do the Big 3? Suppose to have 1/0 ground from Alternator to Frame 1/0 from Alt Power output to Battery fused 1/0 From Battery negative to Frame Yep, 2 runs from alt bracket to batts ground buss bar one run from strut tower to engine block 6 from batts to ground buss bar (on chassis) 2 more from the chassis buss bar to chassis if that makes sense There are no batts under hood. My 2005 s10 blazer build. 4 zcon 18's walled. Link to comment Share on other sites More sharing options...
Kranny Posted May 20, 2012 Report Share Posted May 20, 2012 turn your headlights on and see what the voltage stays at when it usually drops to 12v or whatever. i said this before but you probably read over it Link to comment Share on other sites More sharing options...
audiofanaticz Posted May 20, 2012 Report Share Posted May 20, 2012 Ok, I got my system all together and playing today. But now my voltage rests around 12.9 - 13.1 volts. When I first start the car it is 14.4 then goes down to 12.9 I am running 2 BC3500's strapped set with DD-1. I am not seeing much if any voltage drop on the volt meter but when I turn it up the bass hits really hard at first and then sort of looses its "punch" after a few seconds. the volt meter still says 12.9 or 13 Im not understanding why you think its a voltage issue when you said the voltage doesn't drop with or without the stereo bumping.... Alternators also have 2 different charge temperatures, hot and cold. Cold is obviously when you first start the vehicle, and the engine and alternator are cool, at a colder temp the alternator will charge a tad higher on voltage. Hot is when the car has been running, or just started up shortly after the car was previously running and is still hot. The alt will normally charge 1-2 volts lower than the cold temp. This is common with many alternators. charging from 12.9 to 14.4 volts for example is a minimum in power gain/loss from the amps around 1000ish watts give or take a little bit due to impedance rise, and the voice coil temps, amp temp, etc... You will never audibly really hear that 1000ish watts difference, its maybe .2-.4db quieter on a termlab, and without the meter your ear cant tell. I would be more leaning towards something not being hooked up right, like a loose speaker wire, or a messed up voice coil or maybe even an amp issue, could even be a bad RCA plug that wiggles just enough to kill the signal. But not voltage, since you said you have no voltage drop with or without the stereo bumping. Link to comment Share on other sites More sharing options...
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