90lxstang

i'm just curious as to what the amps the stock alternator is on my '90 5.0. i think it's about time for a new one. any suggestions? right now the car is pretty stock but it won't be forever. i want a better one than what its got because it seems pretty weak. what does everyone else have on their cars? how do you decide what alternator you need? any help is always much appreciated!

PONY GUY

www.alterstart.com they have 130amp and 200amp alternators at good prices

randy78045

Seems to me that if youre not having charging problems, you dont need another alternator... mine (by the stock gauge) doesnt seem to be chargin well, but the car starts every time... never a dead battery... so im gonna save my money til the car doesnt start cuz the alt isnt doin it's job...

90lxstang

my battery hasn't died YET but it doesn't hold a charge real well at all. especially if the ac is on.

randy78045

Unless youre running lots of stereo, etc., maybe it's your battery... just a thought... my alt is stock an no problems...

90lxstang

it has been like that for about a year haha. i thought it was the battery too but it has been a while and hasn't died. whats the power of a stock alternator?

randy78045

I dunno the specs on the alternator, but after i posted last, it occured to me that im not running A/c... so, maybe you need an upgrade... but as you say, it hasnt died...

grabbem88

i think stock are 60amp? not very much....i paid 140 bucks for my powermaster it put's out 163amps at w.o.t. they give you a dyno sheet of what the output is...i guess i got lucky...bought it as a 140 and got 160.

90lxstang

just out of curiousity what happens if you put on a crazy powerful alternator that you don't need?

grabbem88

as long as it has a regulator used nothing...powermasters cycle there energy.