ShadeTreeMechanic Posted May 13, 2016 Report Share Posted May 13, 2016 This won't die. Basic DC theory says that if you have a 140a source that it is going to have fun trying to blow a 250a fuse while your car burns down. 91 C350 Centurion conversion ( Four Door One Ton Bronco) 250A Alternator (Second Alternator Coming Soon) G65 AGM Up Front / Two G31 AGM in Back Pioneer 80PRS CT Sounds AT125.2 / CT Sounds 6.5 Strato Pro component Front Stage CT Sounds AT125.2 / Lanzar Pro 8" coax w/compression horn tweeter Rear Fill FSD 5000D 1/2 ohm (SoundQubed 7k Coming Soon) Two HDS315 Four Qubes Each 34hz (Two HDC3.118 and New Box Coming Soon) Link to comment Share on other sites More sharing options...
SnowDrifter Posted May 13, 2016 Report Share Posted May 13, 2016 This won't die. Basic DC theory says that if you have a 140a source that it is going to have fun trying to blow a 250a fuse while your car burns down. What theory is this? I'd love to know how the short circuit discharge current of whatever combination of batteries OP is using is limited to 140a as to not blow any larger of a fuse ~~~~~~~~SAY NO TO PHOTOBUCKET~~~~~~~~ Snow's DD-1 tracks here: https://www.stevemeadedesigns.com/board/topic/167433-snows-dd-1-tracks/ My take on OFC vs CCA: https://www.stevemeadedesigns.com/board/topic/110381-things-that-piss-you-off-in-the-car-audio-world/?do=findComment&comment=2461444 Link to comment Share on other sites More sharing options...
Jessica Posted May 13, 2016 Report Share Posted May 13, 2016 im only saying it wont hurt to fuse less than the wire if you arent going to exceed the fuse on a normal basis. Most our mono amps dont have fuses, go ahead and throw a 350 amp fuse on a sa1500 cause you have 1/0 wire going into it. Rest in peace, walled 87 accord build log 03' Corolla build with AA Mayhem inside. My super random youtube channel and terrible camera work. Wiring comparison by CaptainzPlanetz Wire and fuse guide by Guest SyKo13 Link to comment Share on other sites More sharing options...
Broke_Audio_Addict Posted May 13, 2016 Report Share Posted May 13, 2016 Someone post factual evidence to back up their claims already. That being said a lot of people's definition of "music" is a clipped 30 hz sine wave with some 80 IQ knuckle head grunting about committing crimes and his genitals. Link to comment Share on other sites More sharing options...
Broke_Audio_Addict Posted May 13, 2016 Report Share Posted May 13, 2016 im only saying it wont hurt to fuse less than the wire if you arent going to exceed the fuse on a normal basis. Most our mono amps dont have fuses, go ahead and throw a 350 amp fuse on a sa1500 cause you have 1/0 wire going into it. But the fuse is for the wire....... Must be why amp manufacturer's recommend fusing to protect the wire and not the amp.... That being said a lot of people's definition of "music" is a clipped 30 hz sine wave with some 80 IQ knuckle head grunting about committing crimes and his genitals. Link to comment Share on other sites More sharing options...
Jessica Posted May 13, 2016 Report Share Posted May 13, 2016 the real issue is wasting 1/0 on a charge lead from an 140 amp alt. Wire for the device, fuse for the wire. Problem solved Rest in peace, walled 87 accord build log 03' Corolla build with AA Mayhem inside. My super random youtube channel and terrible camera work. Wiring comparison by CaptainzPlanetz Wire and fuse guide by Guest SyKo13 Link to comment Share on other sites More sharing options...
Broke_Audio_Addict Posted May 13, 2016 Report Share Posted May 13, 2016 the real issue is wasting 1/0 on a charge lead from an 140 amp alt. Wire for the device, fuse for the wire. Problem solved There are benefits to running larger wire than needed like lower resistance. That being said a lot of people's definition of "music" is a clipped 30 hz sine wave with some 80 IQ knuckle head grunting about committing crimes and his genitals. Link to comment Share on other sites More sharing options...
Karkov Posted May 13, 2016 Report Share Posted May 13, 2016 period 2007 Chevy Tahoe (SOLD) 12 ~ FI Audio X series 10" w/BP option 2 ~ DC Audio 5.0K @0.67 3 ~ DC Audio 5.0K @1.0 2 ~ PPI 3 way sets (not installed yet) 1 ~ RF T400-4, 1 ~ RF T600-2, 1 ~ RF T600-4 4 ~ CT Sounds 5.25" Strato comps (rear fill only) 1 ~ XS Power D4800 1 ~ XS Power D3400 8 ~ XS Power XP3000 160 stock alt, Mechman 370 Elite, 185 DC Power 320+ Sq. Ft. Sound Deadener Pioneer AVH-X5500BHS Youtube: https://www.youtube.com/user/knfjdkghjudfhsgkjdhf/videos?sort=dd&view=0&shelf_id=0 Link to comment Share on other sites More sharing options...
ShadeTreeMechanic Posted May 13, 2016 Report Share Posted May 13, 2016 Correct me if I am wrong but we are talking about the cable that goes from the alt to the battery that is in the back of the car. There is no battery in the front. The batteries in the back have a separate fuse. Correct? If the cable gets pinched in the middle then the short will be energized from both ends to the short. The battery will start dumping power into it. The battery fuse will blow because it can supply the 250a to blow it. The alt also is dumping power into the short. If the alt can only supply 140a and the fuse is 250a then it won't blow because there is not enough power to blow it. Normally the fuse would be what the wire is rated for if . What we are doing here is not normal. Part of the confusion is that the 1/0 is bigger than what is needed as Strange Duck stated. The 1/0 will work but we have to take all things into consideration. 91 C350 Centurion conversion ( Four Door One Ton Bronco) 250A Alternator (Second Alternator Coming Soon) G65 AGM Up Front / Two G31 AGM in Back Pioneer 80PRS CT Sounds AT125.2 / CT Sounds 6.5 Strato Pro component Front Stage CT Sounds AT125.2 / Lanzar Pro 8" coax w/compression horn tweeter Rear Fill FSD 5000D 1/2 ohm (SoundQubed 7k Coming Soon) Two HDS315 Four Qubes Each 34hz (Two HDC3.118 and New Box Coming Soon) Link to comment Share on other sites More sharing options...
RageQuitForLife Posted May 14, 2016 Author Report Share Posted May 14, 2016 Is this thread still going on?you bet it is, and i feel like i came out with less info than when i started it. So many different answers i dont know what shit is right or wrong Not too hard to figure it out. i understand that not, but i'm saying there are some people giving me a certain answer and some giving me another answer, which just complicates a thread that should have been simple Link to comment Share on other sites More sharing options...
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