trulywickedcustoms Posted October 1, 2008 Report Share Posted October 1, 2008 yeah .. if mechman reads this.... i just installed the first of 4 250a alts from him and a XS D2400 up frnt and my lights also dimm when i roll my windows up????? new suggestions?? i also did big 3 with 0g. Quote *2013 NEW BUILD* 12- 18" Crossfire XS v2's B pillar 4th order wall 4- Crossfire 8K mono blocks 40+ pro audio mids tweeters and horns 3- Singer alternator 400a external regulated alts tons of audiotechnix wire 24- XS Power D1400's -TEAM XS POWER- -TEAM CROSSFIRE- -TDH- Link to comment Share on other sites More sharing options...
hoppinAltima Posted October 1, 2008 Author Report Share Posted October 1, 2008 (edited) " eaglescorpio1:: My headlights and dash dim at any rpm level. I have a 225 amp alt from EA, the big 3, and an hc2400 in the spare tire well, and my lights dim when the bass hits no matter what my rpm's are at. I have the mla module and never drop below 13.8 volts at full tilt with rpms at 2000. They still dim." But see my light dim when i roll the windows up with no bass hitting.. the music is all the way down. they do also dim when i turn it up all the way, but i can live with that. Edited October 1, 2008 by hoppinAltima Quote Link to comment Share on other sites More sharing options...
trulywickedcustoms Posted October 1, 2008 Report Share Posted October 1, 2008 But she my light dim when i roll the windows up with no bass hitting.. the music is all the way down. they do also dim when i turn it up all the way, but i can live with that. no bro i dnt have ne thing but a deck in mine as of now... im talking while im driving or just chillin with my dvd goin my lights still dimm..... im getting ready to thrown in my shit but ... not done yet ... but yeah mine is w/o system as well ???? ne ideas guys....... Quote *2013 NEW BUILD* 12- 18" Crossfire XS v2's B pillar 4th order wall 4- Crossfire 8K mono blocks 40+ pro audio mids tweeters and horns 3- Singer alternator 400a external regulated alts tons of audiotechnix wire 24- XS Power D1400's -TEAM XS POWER- -TEAM CROSSFIRE- -TDH- Link to comment Share on other sites More sharing options...
Guest Posted October 1, 2008 Report Share Posted October 1, 2008 " eaglescorpio1::But see my light dim when i roll the windows up with no bass hitting.. the music is all the way down. they do also dim when i turn it up all the way, but i can live with that. my momma's van's lights dim whenever you try to roll up the power windows, revving the engine a little fixes that problem. Quote Link to comment Share on other sites More sharing options...
Torres Posted October 1, 2008 Report Share Posted October 1, 2008 i remember reading that your lights can dim no matter what voltage you see, because you do still get voltage drops, so your headlights will still see that drop, even if it's from 15 volts down to 13 volts. now...i dno about rolling windows up and down and whatnot tho Quote Link to comment Share on other sites More sharing options...
hoppinAltima Posted October 1, 2008 Author Report Share Posted October 1, 2008 well what would you guys recommend me doing? stick with what i have or put my old alternator back and save up and buy another a 2nd battery? Quote Link to comment Share on other sites More sharing options...
EricM9104 Posted October 1, 2008 Report Share Posted October 1, 2008 i remember reading that your lights can dim no matter what voltage you see, because you do still get voltage drops, so your headlights will still see that drop, even if it's from 15 volts down to 13 volts. now...i dno about rolling windows up and down and whatnot tho yup.. nailed it. lights run on a un-regulated power supply (battery/alt). any kind of voltage drop and your lights will dim. even steve, with his huuge charging system, you can notice the lights dim in his videos. Quote 2015 Honda Civic LX 4dr | 24k miles Stock H/U and mids/highs Power Acoustik GW3-12" D2 Sub HiFonics BXX1200.1D @ 1ohm Random 2.5^3' dual ported box NVX LOC Stinger wiring throughout 1977 Chevy SWB Cammed 350 Dual exhaust Cheap Wish stereo Link to comment Share on other sites More sharing options...
hoppinAltima Posted October 1, 2008 Author Report Share Posted October 1, 2008 i undertand that.. but for my lights to dim more with this new alt. sucks and shouldnt be doing that... i understand that the put out less at idle.. but when they still dim at 2500 rpm when they didnt before isnt good. Quote Link to comment Share on other sites More sharing options...
missinglink Posted October 1, 2008 Report Share Posted October 1, 2008 i undertand that.. but for my lights to dim more with this new alt. sucks and shouldnt be doing that... i understand that the put out less at idle.. but when they still dim at 2500 rpm when they didnt before isnt good. A couple of things to think about: 1) Incandescent lamps are very sensitive to voltage. A small change in voltage can make a noticable change in light output. You may be "seeing" a .6 volt swing. 2) The OEM electrical system is a skimpy as they can make it. The wire that feeds the entire dash & interior may only be 12 gauge. Since the window motors can draw 20 amps when they stall, you will see some dimming. The factory knows the window load is a short term load, and allows the wiring harness to be "overloaded" for short periods. They save 75 cents per car in copper... multiplied by millions of cars. You should check your OEM power connections to be sure they are clean & in good shape. Check the system voltage inside the car, on the OEM bus. Use the lighter socket, and measure the voltage with your DMM. Then roll the windows up and watch the meter... 'Link Quote missinglinkaudio The United States Marine Corps. When it absolutely, positively has to be destroyed overnight - even if "it" belongs to the base commander... Link to comment Share on other sites More sharing options...
MECHMAN Posted October 1, 2008 Report Share Posted October 1, 2008 A couple of things to think about:1) Incandescent lamps are very sensitive to voltage. A small change in voltage can make a noticable change in light output. You may be "seeing" a .6 volt swing. 2) The OEM electrical system is a skimpy as they can make it. The wire that feeds the entire dash & interior may only be 12 gauge. Since the window motors can draw 20 amps when they stall, you will see some dimming. The factory knows the window load is a short term load, and allows the wiring harness to be "overloaded" for short periods. They save 75 cents per car in copper... multiplied by millions of cars. You should check your OEM power connections to be sure they are clean & in good shape. Check the system voltage inside the car, on the OEM bus. Use the lighter socket, and measure the voltage with your DMM. Then roll the windows up and watch the meter... 'Link x2. If your voltage is at 14.1 at all RPMs, there isn't an amperage deficiency. It is more likely a wiring or ground difficiency for the window motors. Those things draw quite a bit you know... (often more than 20 amps each) Quote 1-888-MECHMAN www.Mechman.com [email protected] Link to comment Share on other sites More sharing options...
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