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grumby13

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Posts posted by grumby13

  2. Posted

    seems to me like the engine idle is to low for the alternator to keep everything running but 14.3 at first start up is normal since cold start up the voltage is high but at idle it should be 13.8. i would probable get a dmm and test the battery if the battery is at 13.8 when your readings are low then that means your voltage meter is off or the current that has to go through the pcm and all the other goodness to show what the voltage is at idle and a 2k rev. i would say get a friend to com over and have a dmm put the points up to the post when the engine is warm and your readings are low see if the battery voltage stays at 13.8 and then crank the system to its maximum playing volume before clipping and see what the drop is if the voltage drops alot from the dmm then that would mean you need a (more powerful) alternator then the stock output one but with 600 watts the dimming should not be noticed til you hit about 800 to 1k rms. but some vehicles lights are sensitive to and voltage drop that is greater then .3 but dimming can be noticed very well with a .5 drop but what else can help is upgrading the amp wire and amp ground might not be sufficent enough for the draw it requires.

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  10. Posted

    so i just replaced my battery two days ago and the battery is already swelling up the next day and today not much has changed. my first guess was heat and still might be, one other info is that the battery is loose not tied down since the bar or battery holding thing that goes across it was to tall to hold the battery in place. so the battery is loose and able to move should i get a new one and tie it down. this battery is the second one and if i replace it it will be the third one from them


    battery: duralast platinum 34r
    car toyota camry
    alt: 130amp from a 2003 highlander(original stock 80 amps)

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  14. Posted

    i just added another battery and my vdrop is still high when i crank it up. i just installed the battery yesturday and so far the vdrop at normal volume and when i compete is about half to 75% of the vdrop. im assumption now is my alternator i have a bc200d wired to 1 ohm but have not calculated box rise yet since im missing some tools to do so. and with the stock alternator from a 03 highlander im left with 95 amps to play with but the amp at full tilt is 144amps draw.

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  22. Posted

    would anyone know how much more on average you can increase the output of a stock alternator just by doing a rewind. i added a second battery which is not much. the second battery is my old battery that is a stock from upfront in the engine bay. i have the 130amp alternator from a 2003 highlander, just need to get to 200A output but i know each alternator is different and will not be able to get much more out of it. thanks to all that can help me

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