Postby noyztoyz » August 7th, 2012, 2:33 pm
u need to be able to supply at least 800a of current to max out that system
you need to have your minimum voltage as 12.0v after crank
the 3 optimas good for 200a of current supply
hence u lacking 600a
if u put a 300a alternator (that does 300a - not an over-rated one)
u will need 300a of current supply from batteries
300a of current could be supplied by 375ah of batteries.
your optima battery is 75ah
the loudest 2 12 vehicle in the country right now is running a 270a mechman alternator and 720ah of sparta batteries and has no current problems