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Keep in mind no alternator puts out full power at idle. Most don't reach full output until 850-1000 rpms. With an underdrive pulley, it'll be even less. I'm not a huge fan of severely overdoing it.
I'm throwing in a 136 amp because I know several dodge trucks came with that, so the system should be up to it. Dont have any idea how a 250 amp alt would tax the electronics.
Last edited by aim4squirrels; Jul 27, 2011 at 06:45 PM.
Keep in mind no alternator puts out full power at idle. Most don't reach full output until 850-1000 rpms. With an underdrive pulley, it'll be even less. I'm not a huge fan of severely overdoing it.
This one is full out put at 700 rpm I think.
I'm throwing in a 136 amp because I know several dodge trucks came with that, so the system should be up to it. Don't have any idea how a 250 amp alt would tax the electronics.
Originally Posted by HeyYou
Go with the 136 amp alt. It is a direct bolt in, no modifications required, and get a GOOD battery isolator. Should be all you ever need.
I have a battery isolator and the 120 amp will not keep up with one battery. IDK what I want to do.
.....Congrat's on the cam swap and gotta say kewl pic's. Pic's so it did happen..Now were's all the regular's given prop's, kudos and the like for a job well done?