kickerl7bass Posted October 30, 2015 Report Share Posted October 30, 2015 Hi, i have a huge problem with my headlights dimming when the bass hits. I understand why it does it, and i kinda get what i should do, but i feel i should have already done enough to solve it. Ok, so i have a kicker lx1000.1 amp, two 10" L7 solobaric kicker subs in separate ported boxes. I have 1/0 awg wire (copper not aluminum) all throughout my system. (power wire, grounds, all that) i also have a 1.5 farad capacitor. I just did the Big 3 upgrade yesterday but the problem isn't any better. If it is any better it is VERY little. Even at about 2000 rpms its dimming enough to tell it when driving. Capacitor is showing 14.1 volts when no bass hitting and on certain songs, its dropping to 12 volts. I'm questioning if i did my big 3 upgrade correctly... I followed a step by step instruction online. seemed legit. What i did was run wire from alternator to fuse box, then from fuse box to hot on battery. Then for my ground i ran wire from inner fender (same place factory ground was) to the battery. I also included another ground wire from my engine to the chassis. I did everything it told me to do. I can't tell any improvement. I've read that next step is either a high output alternator (which i don't wont to buy because i don't have the money right now for that) or installing two alternators, which is also expensive. Maybe a bigger capacitor? or different type of battery? Battery was tested not long ago and showed it was good-great. So unless another alternator then im stumped. Somebody help and also tell me if i did my big 3 correctly. Thanks! Link to comment Share on other sites More sharing options...
MrSkippyJ Posted October 30, 2015 Report Share Posted October 30, 2015 if you are only dropping into the 12s you don't really have anything to worry about. F150: Stock 2019 Harley Road Glide: Amp: TM400Xad - 4 channel 400 watt Processor: DSR1 Fairing (Front) 6.5s -MMats PA601cx Lid (Rear) 6x9s - TMS69 Link to comment Share on other sites More sharing options...
kickerl7bass Posted October 30, 2015 Author Report Share Posted October 30, 2015 Yeah but its causing my headlights to dim really bad. That's my biggest concern. Link to comment Share on other sites More sharing options...
kickerl7bass Posted October 30, 2015 Author Report Share Posted October 30, 2015 if you are only dropping into the 12s you don't really have anything to worry about. Forgot to quote your post... but yes it's causing my headlights to dim thats the problem im having. Link to comment Share on other sites More sharing options...
mcfalcon Posted October 30, 2015 Report Share Posted October 30, 2015 I hear that dimming can come from as little as .1 drop in viltage. That's a monster you probably don't want to chase. How bad are they dimming? I think I have heard of switching to HID to help with dimming but don't quote me on that. Edit: Also what capacitor are you using? Still learning but have started gathering. Link to comment Share on other sites More sharing options...
SkarredSierra Posted October 30, 2015 Report Share Posted October 30, 2015 Then you need a bigger alt. Id also suggest an agm replacement for your main battery. Are you grounded to the frame from your amp? A bad ground can cause dimming lights sometimes. Link to comment Share on other sites More sharing options...
MrSkippyJ Posted October 30, 2015 Report Share Posted October 30, 2015 I think HIDs will help, but otherwise you are almost always going to have dimming lights. The lights will react very quickly to voltage changes, much faster than the alternator responds. So even if you have more ALT than you need you can still have dimming lights. F150: Stock 2019 Harley Road Glide: Amp: TM400Xad - 4 channel 400 watt Processor: DSR1 Fairing (Front) 6.5s -MMats PA601cx Lid (Rear) 6x9s - TMS69 Link to comment Share on other sites More sharing options...
bmwking Posted October 30, 2015 Report Share Posted October 30, 2015 surprised no one has said this yet, but get a 2nd battery in the back. I have crazy headlight issues with a car that only had a 65amp alternator. i got a shuriken BT20 and the issue disappeared. It'll outperform the capacitor by a mile. Link to comment Share on other sites More sharing options...
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