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120amp at idle Alt. back in stock

Started by b5blue, April 19, 2026, 08:18:53 AM

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b5blue

Been a few years but listed in stock now. Ordered mine Friday and I'll let you know how it goes.
https://www.qualitypowerauto.com/item_557/Chrysler-Mount-Mega-Amp-Alternator.htm

b5blue

  So here yesterday and has a plug made for regulator's +/= leads and and as I have a Denso 120amp (60 at idle.) modification I'll need a set of stock hardware to mount it. While waiting I'll mess with my "Fleet Upgrade" wiring and adapt everything else to fit.
  My experience has been to change any one thing you must change at least 3 others!  :lol: 
 

LaOtto70Charger

Which Mega amp alternator did you get?  I tired the 140 one. I wasn't getting much voltage difference at my idle settings. So sent it back. Currently got a 140 amp from power bastards. It was a nice improvement. When at idle in park or neutral all good. Go to drive and the idle drop would cause discharge. Big issue is it makes a heck of a lot of noise. Think the bearing is going so back to the old one until I decide who to try next or again.

b5blue

  Mine is listed for 120amp at idle, single pulley 2 wire regulator 150 max I think. The pulley is much smaller then my Denso's.
  I'm doing this cuz I added a booster fan when I installed A/C which I run all the time in FL. , at idle under full load the Denso is good for just a bit under 60amp with max at 120amps.
  Are you talking VOLTS or AMPS? I got there 2 wire regulator (18.00) and it's adjustable.

LaOtto70Charger

Well the cars amp gauge was going negative when running at idle.  I think in the 750 to 800 rpm range.  Been a few years now.  I do run idle lower so it doesn't jerk bad going into gear.  I have a 2 pulley ac car.  I can't remember if I was using the multimeter to check amps or not. I dont have any major accessories but just sitting at a light with the brakes on with no heat it couldn't keep up.  The power bastards one they actually stated an amperage at 800 rpm.  So just a little extra throttle at in gear it kept everything positive amps.