Author Topic: 100A+ Alternators  (Read 3394 times)

Offline DirtyLittleSecret

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100A+ Alternators
« on: October 25, 2007, 11:35:33 pm »
Any issues I ought to know about when "upgrading" to a 100A alternator?  My stocker's ready to be replaced...


This is for my 78'.
78 K20: fresh 350, SM465, NP205, 4" Pro Comp, & working hard!
65 Jeep J300: 13.5:1 383, TH400, NP205, mostly NOS. 
88 Toylet LandCruiser FJ62: LT1, 4L60e, 3" OME, Aussies.
06 VW TDi: DD@72mpg.

Offline red02chevy

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Re: 100A+ Alternators
« Reply #1 on: October 26, 2007, 12:19:01 pm »
You shouldn't have any problems upgrading to a alternator of that size. You might ask the guy that i posted below and see what he says. He knows his shoot about alternators.

When i had my old 2002 silverado I bought a alternator from a member on another forum that was a 270 amp alternator. I was running e-fans, 2 electric compressors and someother misc items and I didn't have a minutes of trouble.

here is a link to his profile from another forum.

Tell him Jonathan told you about him and he will take great care of you.

http://www.gmfullsize.com/forum/member.php?u=3565
« Last Edit: October 26, 2007, 12:26:34 pm by red02chevy »
06 crew cab
86 silverado

Offline werewolfx13

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Re: 100A+ Alternators
« Reply #2 on: October 26, 2007, 12:21:40 pm »
for a 100a you won't have a single problem, take the old one out, put the new one in and make all the connections. I reccomend a 4 ga or heavier cable be added from the output post to the battery, and it shouldn't need to be fused, no longer than that cable would need to be, as long as its not rubbing against anything metal.
Chris
'83 Chevy c10 Silverado SWB
'76 Chevy k20 LWB 6.5'x8' Flatbed
“I know that you believe you understand what you think I said, but I'm not sure you realize that what you heard is not what I meant.”