CK5
Register an account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members.

Hi amp alt question

surpip

1 ton status
Joined
Apr 7, 2004
Posts
10,877
Reaction score
0
Location
sacramento ca
so if i put a 140 amp alt on my rig, and i dont really "need" it, will i fry anything? Like if i dont have the draw to where i would need to step up to a bigger alt. will i fry stuff if i just run it?
 
No, you won't fry anything. It never hurts to have more alternator then you need. The voltage regulator ensures that the alternator makes the appropriate amount of power for the demand.
 
i havent put it in yet, i was just asking before i went and spent money on the bracket at the dealer
 
bracket? are you replacing the stocker on a sb350? mine fit right in... are you doing the pontiac transsport? I had no success with that.....
 
no it is a large case GM alt.
i need a bracket from the dealer, like the ones on the cop cars(someof them)
 
Ya might want to contact RJF on that one,,,,i know he installed something like that , to power all of that fancy sterio stuff he has. :D
 
Alternator Bracket

Yeah, He's right I had a Serp Setup from a 9C1 cop car and the ear was broken off of it. The new bracket was like $65.00 from my chevy dealer in Charlotte mainly used in this application and does require the extra bracket. I still have this setup and when I get ready to put it on then I will have to get this bracket also, just check between the 90-93 year models, with either the 5.0 or 5.7.
Just my 0.02, Jeremy.
 
Alternator

Without knowing what your year or model is, I'll use mine as an example. On my 79 Jimmy with a 350, it has a weenie 60 amp alt, but if you ask for the alternator for an 83 Caddilac Cimmaron, it's a 100 amp unit, same case and clocking and plug in as the 60, and it's a GM part #. Just a my 2 cents for folks wanting to upgrade to a higher amp alt that will bolt and plug right in.
 
At full load the stock primary loop (8ga) is not up to the task of delivering 140 amps. I fried mine and had to rebuild it with 4ga wire.

It won't hurt anything till you really need all the power it has.

Just my .02
 
really? wow i figured the 8Ga would be enough
a little 4Ga extension wouldent be that expinsive though
 

Latest Posts

Top Bottom