Beckett Posted January 18, 2008 Report Share Posted January 18, 2008 hello there (Y) Right then i have ordered a 140 amp alternator for my car.....that is like the most powerful one i can get made for my car, i will be running about 500-1000rms so that alt is plenty. My question is when i fit it i want to upgrade the wire from the alt to battery, i will use some 0-guage. but i am not sure if i will need a fuse of some sort or anything? i had a quick look around under the bonnet the other day and i saw a bunch of fuses that were 30amp and/or 60amp. will they be good enough or do i need higher amp one's? i have a stock battery that is 45AH if that is useful Thanks a lot guys Ben. JS Fraser *Alpine Typr-R 12" *JBL GTO 1200.1 Sub Amp *Alpine PDX-4.100 *Rockford Fosgate Power 6.5's *Rockford Fosgate Fanatics 6.5's Both in front doors *0/1 Guage wiring from front Junction Boxes to 120AH Battery In Boot (battery removed because too small for alternator) *140 Amp HO Alternator *Alpine Head Unit -------------------------------------------------------------------------x------------------------------------------------------------------------------ Link to comment Share on other sites More sharing options...
Aaron813 Posted January 18, 2008 Report Share Posted January 18, 2008 I would just use a 250 amp fuse im sure that it would never pull any thing more than 150 but to be on the safe side just go with a 250 to be honest i don't think you actually have to have one with 0 gauge could be wrong but ive done a few with out fuses and they have all been fine Link to comment Share on other sites More sharing options...
Clif Posted January 18, 2008 Report Share Posted January 18, 2008 yea i dont have a fuse on mine, just used some nice connectors on it, and ran it in a spot where it wont get hot or posibbly cut to ground out. Just be carefull when your running the wire. may also want to use some of that 0 to run a new ground. take it from the negitive from the battery and clean up a spot on the frame to attach it to. That will help alot also. 03 Trailblazer EXT LT In Dash Rear Flip Down Polk Audio Font & Rear Stage Hifonics Zeus 4 Chan Amp Hifonics Brutus Mono Amp 12" Rockford Fosgate Power HX2 T-Line tuned to 45hz 18"BTL T-line @31Hz (9 weeks pregnant) Link to comment Share on other sites More sharing options...
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