Well as for my un named 253 amp alt , i think the the voltage regulator set curve is set different the the mechmans. They put out 220 amps at idle. Mine puts out 110 amp at idle and the mech mans are 1000 time better built yes but when i rev over 1300rpm i think i should get 220amp from mine atleast.... Mech mans are built for what we do. From what i heard they can set the regulator to your liking.
My battery that i spent 300$ on is a northstar agm ultra. It has a crank pulse of 1600 amps so it says and the reserve capacity isent big due to the fact that the gm battery trays are so small....
Does it hurt an amp bumping at idle and i get a voltage drop to 13.2-13.4~ cause at idle thats what it falls to... I never checked voltage drop at the amp itself tho...
Thx to whom is helping me steer in the right direction. I miss my subs and i might pick up a rockford t2500 but i wanna see why im frying amps first.... If i blew the mosfets in that rockford like the orion did id be soooo pissed!