The biggest alt I could find for my 3.1 litre Z24 was 140 amp. That with a deep cycle battery seems to be working for me. (2)444w,(1)800w,(1)480w,(1)1200w. and of course my deck and EQ.
Do anyone know if this is a good idea. Because I hear with some subs its not recomended to have them firing upwords something about the drag of the magnet or something.