i have a 91 gmc fullsize, 4.3 v6, with 105 amp alternator on it. fixin to do big 3 with 4ga running from alt to batt, and 2/0 ga for the grounds from motor to frame and frame to batt. also going to run 2 runs of 1/0 gauge to the group 34 exide spiral cell blue top in the back.
have a swiss audio mono block that is 2000 rms, pushing 1-15 inch memphis mojo d2, and going to put a 4 channel(eclipse hopefully) in there to run my comps active.
will i need to go up with the alternator amperage, and if so how high?
and should i go ahead and run a 2/0 ga ground from the gr34 battery in the back to the frame?
also, while running two batteries like this, do i need to do anything special to get the rear one to charge? or will running the 2 runs 1/0 from front to back be good? have heard of people using a battery isolator....not sure what that does, but if i need it i will get it.
any help will be appreciated, and i hope to get started on the install/box build/amp and xover rack this week.