sikend667

gauge of wire determines fuse size there is draw down on LONGER runs but the shorter the less resistance less resistance=more amps. at least thats what im deciphering from what ive read. im no electrical expert but i know fused wires are better than no fuse if you want you can do a little expriment at home to prove this. grab a pair of 9v batteries out of the junk drawer, 2 peices of small gauge wire, a 1 amp fuse, set of gloves, soldering iron, solder, and a fire extiguisher. take one wire cut it in half, solder the fuse between the two halves then take the ends and short the battery. fuse should blow fast and remember how hot the wire got. now grab the gloves, the other battery, the other chunk of wire (without the fuse), and make sure the fire extiquisher is close by. with the gloves on short this battery see how hot the wire gets. dont do it for long dont want the battery to split, or the gloves to catch on fire! this will basically prove the need for a fuse no matter how short or how long the wire is you will get the same result. ohh and when you are done do us all a favor READ THE QUESTIONS BEFORE YOU SPIT YOUR OPINION! i just wanted to know what size fuse i should use not whether or not a 2004 chevy tahoe has every circut fused and whether that upsets you because :Flame:you dont need no fuses for yer rig:Flame: i like to be safe personally so ill be fusing mine if you have a suggestion as to what size fuse should be used i appriciate it if you want to try to justfy your unsafe setup save it for the next idiot. ok now that im done ranting..... GD thank you for your direction to the proper information but unfortunatly it is all greek to me. i have a spare 4 gauge about 22" long i was going to use. according to the charts ive read itll sustain 110a but with the maximum output being 90a logic to me says slap a 90a fuse in there and call it a day but that doesnt seem right..... any advice would be appriciated

thanks for the info GD also did we ever get a final conclusion on whether or not this was bolt on for the xt turbos? and to clairify according to the FSM they are 55A stock also the alt size difference is for hood clearence issues same reason the XT6 one is wonky. ill be trying this while i change out my oil pump this weekend and IF there is modification nessisary for the XT turbo ill document it here if thats alright with GD

im assuming a 125 amp fuse? or should it be smaller?

looking for the factory XT turbo stickers repoped but want to do them in pink.... anyway you could do that? you have the pics i stopped by a few months ago

ill do 3 in xxl if u have that many