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  1. #16
    NASTY08IMPALA's Avatar
    NASTY08IMPALA is offline CarAudio.com Veteran



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    Re: How far can I get on stock alt?

    oh my bad i thought somewhere it said 2 subs

    ---------- Post added at 09:17 AM ---------- Previous post was at 09:17 AM ----------

    carry on







  2. #17
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    Re: How far can I get on stock alt?

    in reality, you have the wrong car for your car audio application. hybrids like that are for people who DON'T want to put a massive sub stage in a car. but, you can make it work. you'll just have to behave and ensure the 12V batteries are being charge properly by monitoring their resting voltage, some days you'll need to take it easy and let them recharge (or plug them in at night). if you don't drop below 14.4V at idle, you know you aren't drawing much power at all. what is the 12V output of your alt at idle and at 2500RPM? i'd guess around 60A at idle and 110A at 2500. That means you can deliver about 500W RMS to a sub at idle while maintaining 14V, and double that at higher rev's.

    if you aren't satisfied with your existing sub and amp combo, it's not that you need more power, it's that you need to properly integrate that sub into the vehicle. it means you have cancellation and losses through the thin, flimsy trunk walls. more power in the same space won't make you as happy as just doing a proper install. that's not a dig against you, most people just toss a box in a trunk and think that's all they need. getting the vehicle ready for something it wasn't designed for is the biggest challenge and usually overlooked.



    have you been helped by me? i'd love to know. shoot me a PM.

    My 2014 Accord build log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/608637-2014-accord-sport-sq-build-keep_hope_alive.html
    ***My YouTube Channel https://www.youtube.com/channel/UCkYUo2EShW9lgtrfXiDvLNQ/videos
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  4. #18
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    Re: How far can I get on stock alt?

    Quote Originally Posted by keep_hope_alive View Post
    in reality, you have the wrong car for your car audio application. hybrids like that are for people who DON'T want to put a massive sub stage in a car. but, you can make it work. you'll just have to behave and ensure the 12V batteries are being charge properly by monitoring their resting voltage, some days you'll need to take it easy and let them recharge (or plug them in at night). if you don't drop below 14.4V at idle, you know you aren't drawing much power at all. what is the 12V output of your alt at idle and at 2500RPM? i'd guess around 60A at idle and 110A at 2500. That means you can deliver about 500W RMS to a sub at idle while maintaining 14V, and double that at higher rev's.

    if you aren't satisfied with your existing sub and amp combo, it's not that you need more power, it's that you need to properly integrate that sub into the vehicle. it means you have cancellation and losses through the thin, flimsy trunk walls. more power in the same space won't make you as happy as just doing a proper install. that's not a dig against you, most people just toss a box in a trunk and think that's all they need. getting the vehicle ready for something it wasn't designed for is the biggest challenge and usually overlooked.
    I appreciate your input and honesty. It sounds like people have done this before and like I said before, things are okay right now with a single 1.2K and I still don't have the BIG 3. I would like to think my install will be good. I used a bulk pack of dynamat in the trunk and the sub will be in a 4th order band pass enclosure. I will be monitoring voltage and it sounds like I need to buy a charger for my batteries. I thank you all for giving me the information allowing me to take proper precautions.



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    Re: How far can I get on stock alt?

    Good news! I've been periodically checking in with high output alternator companies and Mike Singer just told me he can finally help me out. 220 amp!



    2012 Kia Optima Hybrid w/ Infinity System and Nav.
    Audio Control LC6i
    Focal Polyglass 165VR3
    JL Audio Slash 300/4v2
    DC Audio M2 XL 10"
    DC 1.2K x2 strapped
    XS Power D3400

  6. #20
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    Re: How far can I get on stock alt?

    sweet find!



    have you been helped by me? i'd love to know. shoot me a PM.

    My 2014 Accord build log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/608637-2014-accord-sport-sq-build-keep_hope_alive.html
    ***My YouTube Channel https://www.youtube.com/channel/UCkYUo2EShW9lgtrfXiDvLNQ/videos
    *My 2001 Accord build log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/536049-2001-accord-ex-sedan-its-long.html
    *2005 Scion tC Build Log: http://www.caraudio.com/forums/car-audio-build-logs-cars-trucks-suvs/516096-2005-scion-tc-sq-hertz-audison-pioneer-build-log.html

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