white4d96 Posted November 13, 2009 Report Share Posted November 13, 2009 I have a question. I only have a 105 amp alternator right now and was looking into doing the big 3. My question is, can I just use 4 gauge wire with, say, a 120 amp fuse on my alt to batt? I don't know if I will have enough 1/0 to do this run... Quote Too many projects, too little time... Link to comment Share on other sites More sharing options...
c_stud Posted November 13, 2009 Report Share Posted November 13, 2009 I have a question. I only have a 105 amp alternator right now and was looking into doing the big 3. My question is, can I just use 4 gauge wire with, say, a 120 amp fuse on my alt to batt? I don't know if I will have enough 1/0 to do this run... you can, just won't have as much of a voltage rise compared if you'd do it in 1/0 Quote 1998 Nissan 200sx NOW: Dex-p98r head Planet Audio 300.4 mids and highs Planet Audio/Pioneer tweeters/crossovers Skar SK1500.1 3 SKAR Vvx15 dual 4 wired at .63 Link to comment Share on other sites More sharing options...
abervintageman42 Posted November 13, 2009 Report Share Posted November 13, 2009 ii highly recommend using 0 guage but 4 guage will make a noticeable difference as well Quote Link to comment Share on other sites More sharing options...
fi audio Posted November 13, 2009 Report Share Posted November 13, 2009 I have a question. I only have a 105 amp alternator right now and was looking into doing the big 3. My question is, can I just use 4 gauge wire with, say, a 120 amp fuse on my alt to batt? I don't know if I will have enough 1/0 to do this run... yea you can use 4 gauge and i dont think you need to fuse it from the alt to the batt Quote Setup: Headunit: 7" indash screen Sub: fi bl 12 Amp: Audioque 1200D Box Ported tuned to 34hz Big 3 done in 1/0 gauge Link to comment Share on other sites More sharing options...
tacomabanga1986 Posted November 13, 2009 Report Share Posted November 13, 2009 ive heard 4guage can handle up to 150amps n i have a stock 75amp alt in my geo with a big 3 in 4guage n it works out just as good as my 0guage in my truck wit stock 70amp alt u can do it till u get bigger wire, but if u go to around a 175 idle to 300max alt its best to run 1/0-0guage to it but ya 4guage will work, i got a 150amp fuse on my alt but ive heard u dnt really need one but i put one on just in case Quote here's a link to my system 99 toyota tacoma , 2 mtx 8000 1504's in a sealed downfire , 1000w memphis amp here's a link to my other system my 90 geo prizm test car heres a thread i got of new songs u can dl that are legal = Some Good Bangage/you Can Dl These Free And Legit Link to comment Share on other sites More sharing options...
tacomabanga1986 Posted November 13, 2009 Report Share Posted November 13, 2009 oh ya i forgot, about 70% of cars use 4guage for stock wires so i unno just leave ur stock wires intact tho and the only reason i took mine off cause my stock ground wires were 10guage n that wasnt hardly good enough for anything so i just went ahead n redone em wit 0guage Quote here's a link to my system 99 toyota tacoma , 2 mtx 8000 1504's in a sealed downfire , 1000w memphis amp here's a link to my other system my 90 geo prizm test car heres a thread i got of new songs u can dl that are legal = Some Good Bangage/you Can Dl These Free And Legit Link to comment Share on other sites More sharing options...
Gotloud555 Posted November 13, 2009 Report Share Posted November 13, 2009 I wouldn't bother using 4 gauge because it wouldn't do much. Quote Link to comment Share on other sites More sharing options...
white4d96 Posted November 13, 2009 Author Report Share Posted November 13, 2009 I guess we will see if I have enough wire. Worst comes to worst I will do a double or triple run of 4 gauge for now. Quote Too many projects, too little time... Link to comment Share on other sites More sharing options...
tacomabanga1986 Posted November 13, 2009 Report Share Posted November 13, 2009 it will make somewhat of a diff but not that much but ied go ahead n order a big 3 kit from scottie j for around $30 aint bad http://www.stevemeadedesigns.com/board/ind...showtopic=51487 n u can use the 4guage elsewere, but trust me it does make a diff in my geo my idle voltage was 13.2v and when i did big 3 in 4guage cause thats all i really had i was saveing my 0guage for my truck, n voltage went to 14.7v so ya it makes pritty much good diff, but u wont get as much resistance wit 0guage tho Quote here's a link to my system 99 toyota tacoma , 2 mtx 8000 1504's in a sealed downfire , 1000w memphis amp here's a link to my other system my 90 geo prizm test car heres a thread i got of new songs u can dl that are legal = Some Good Bangage/you Can Dl These Free And Legit Link to comment Share on other sites More sharing options...
white4d96 Posted November 13, 2009 Author Report Share Posted November 13, 2009 The problem is I have been 86'd from spending money on audio by the parents, so I no longer have access to a PayPal account. Next time I do an install though I may use the money to support my local audio shop by buying some wire. They charge a lot for it but if it keeps their doors and ears open for me it won't hurt as much. Quote Too many projects, too little time... Link to comment Share on other sites More sharing options...
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