layedout72
+1y
go as big as you can afford. your ground NEEDS to be the same exact size as your power run. the longer the run of wire, the large diameter wire it needs....something to do with voltage drop. that being said...your system is only as good as it's smallest link. Your 8 gauge ground is hindering your 2 gauge power run. Step everything to 2 gauge, match or SLIGHTLY exceed your alternator rating for a fuse and make sure your wires are not bare anywhere at all. slightest short can cause nutty things to happen.