Originally Posted by 1SICKM35
At idle its 200a.... So my voltage dropping as it warms is not normal
I called and asked a guy from ohiogenorator and he told me the alt puts out power as needed so basically thats why its only 12.5 at idle when system is not on
motor is not spinning fast enough for the alt to produce power.. look for a smaller pulley..
every single high amp alternator ( espically something over 300a) needs more than 500 600rpm idle to make it work
when i had my mechman 320a on my g6 i dropped to resting voltage at stoplights n such ( car only idles at 500rpm)
i called mechman 3 times about it..and even they said its normal..i couldnt get a smaller pulley..already had the smallest one possible
so basically your alt dont put out anything at such low rpms and you rely on battery power.. which optimas ARE NOT really a good choice
2000 Gmc Sonoma ext cab
subs- 4 Skar audio ix8s 2cube net at 28hz 6" aero
amps- Audio Technix 400.1 & infinity 7520a
highs- 3 sets of Scosche hd 6.5"
headunit- fancy DUAL audio xdma760
sound deadend with peel n seal and expanda foam
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