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Reload Thread: Battery - Alternator HELP

  1. #46
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    Re: Battery - Alternator HELP

    Quote Originally Posted by gamehawk55 View Post
    Is 13.6-13.8 really THAT bad? Also can you make a stock alt charge that high too? Or does it always have to be an HO alt to push em that high?
    considering i dont drop below 14.4 @full tilt yea its.bad ..and.sure.u should.be able.to get.stock alt that high







  2. #47
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    Re: Battery - Alternator HELP

    Quote Originally Posted by NASTY08IMPALA View Post
    considering i dont drop below 14.4 @full tilt yea its.bad ..and.sure.u should.be able.to get.stock alt that high
    Might have to look into that.



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    Re: Battery - Alternator HELP

    Quote Originally Posted by NASTY08IMPALA View Post
    the small pulley wont fix.it ..its controlled by the pcm
    Actually now that i think of it.. im not using my factory plug i have the new alt wired into ignition switched NOT Controlled by PCM and i have similar issues so i dont see how it could be that...





    Refs: Rio, DbzArson, goodstuff, Worstenemy453


    Quote Originally Posted by Altec View Post
    Then obviously I am asking the wrong person, because you don't know how to hook up subs if they sounded like "****". Maybe learn your ohms and your diagrams before you call something ****. Learn to make boxes to specs and use the right wires and its called dynomat. Then maybe your car wouldn't of sounded like ****, yeah?

  4. #49
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    Re: Battery - Alternator HELP

    My battery light has been on and i have been having charging issue messages pop up which i assumed was because the new alt doesn't use the factory plug





    Refs: Rio, DbzArson, goodstuff, Worstenemy453


    Quote Originally Posted by Altec View Post
    Then obviously I am asking the wrong person, because you don't know how to hook up subs if they sounded like "****". Maybe learn your ohms and your diagrams before you call something ****. Learn to make boxes to specs and use the right wires and its called dynomat. Then maybe your car wouldn't of sounded like ****, yeah?

  5. #50
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    Re: Battery - Alternator HELP

    Quote Originally Posted by phemps View Post
    Actually now that i think of it.. im not using my factory plug i have the new alt wired into ignition switched NOT Controlled by PCM and i have similar issues so i dont see how it could be that...
    then u have a totaly diff problem

    ---------- Post added at 05:23 AM ---------- Previous post was at 05:22 AM ----------

    anytime ur.not.usimg the oem plug u will get batt light amd warning messages..mine does




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    Re: Battery - Alternator HELP

    Quote Originally Posted by NASTY08IMPALA View Post
    then u have a totaly diff problem

    ---------- Post added at 05:23 AM ---------- Previous post was at 05:22 AM ----------

    anytime ur.not.usimg the oem plug u will get batt light amd warning messages..mine does
    funny i dont have a batt light yet




  7. #52
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    Re: Battery - Alternator HELP

    Quote Originally Posted by Calilove View Post
    funny i dont have a batt light yet
    some manufactures dont.come in at all ..mine.cane on like a week after my ho alt install




  8. #53
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    Re: Battery - Alternator HELP

    Quote Originally Posted by Calilove View Post
    funny i dont have a batt light yet
    what year make and model?




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    Re: Battery - Alternator HELP

    A high output alt puts out the most amps at high rmp, what you need to understand is a alt will ''shut down'' at certain temps so when you see your voltage drop its because your enginge isn't spinning fast enough to keep it cool to produce the amps. Yes chevy did make alts to be controlled by pcm only to save fuel. I never noticed mine till i did upgrades to my electrical. If your not using the factory plug your alt is "always" on in a sense. What you should do is use a module it will raise the "charge point" of a alt to keep the voltage up even at idle. When it comes to alt and charging everyone has there own opinion and there isn't a common answer since every car is different just read up as much as you can and see what will work in your situation.




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    Re: Battery - Alternator HELP

    What Mike Singer told me was that when having the smaller pulley, it spins faster when at idle to boost the idle amps.

    The problem isn't your PCM, it's because you switched the pulleys.




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    Re: Battery - Alternator HELP

    Quote Originally Posted by 09civic View Post
    What Mike Singer told me was that when having the smaller pulley, it spins faster when at idle to boost the idle amps.

    The problem isn't your PCM, it's because you switched the pulleys.
    We know its not the PCM since he by passed the harness,so yes it could be the pulley but since your gonna do a smaller pulley make sure you get a smaller belt to prevent slip




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    Re: Battery - Alternator HELP

    Quote Originally Posted by pacustomz View Post
    We know its not the PCM since he by passed the harness,so yes it could be the pulley but since your gonna do a smaller pulley make sure you get a smaller belt to prevent slip
    Mike is telling me its the pulley aswell I got one just short of an inch and I'm going to try that tonight with the small pulley. Hopefully all goes well. My idle should be atleast 14 right? Pretty sūre that's what it was with stock alt
    Ok I'm using factory plug aswell no harness nothing



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    Re: Battery - Alternator HELP

    Quote Originally Posted by 09civic View Post
    What Mike Singer told me was that when having the smaller pulley, it spins faster when at idle to boost the idle amps.

    The problem isn't your PCM, it's because you switched the pulleys.
    this is absolutely correct. ^^^

    your problem is not your computer, as your computer will not vary alt output by rpm.

    If it is the computer all you have to do is turn your headlights on to bypass it. Most pcm regulated alternator gm vehicles have it programmed in to automatically command 14v instead of 12.9 once the headlights are turned on. I'll gladly make a video with my scan tool, 270a singer alt, and my 05 grand prix if anyone wants to argue that.




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    Re: Battery - Alternator HELP

    Quote Originally Posted by cbuts View Post
    Mike is telling me its the pulley aswell I got one just short of an inch and I'm going to try that tonight with the small pulley. Hopefully all goes well. My idle should be atleast 14 right? Pretty sūre that's what it was with stock alt
    Ok I'm using factory plug aswell no harness nothing
    Aim for 1/2in to 3/4in shorter. Don't go any smaller.

    I had to use a 6 groove instead of 7 groove for my car because they didn't make a 7 groove that was the right length.




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    Re: Battery - Alternator HELP

    Quote Originally Posted by 09civic View Post
    Aim for 1/2in to 3/4in shorter. Don't go any smaller.

    I had to use a 6 groove instead of 7 groove for my car because they didn't make a 7 groove that was the right length.
    I use a stock length belt in mine with no belt slip. It depends on the car though, I suppose some tensioners won't hold the belt as tight as others. Make sure to get a good belt like a Gates or a Gatorback.



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