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  1. Join Date
    Dec 2004
    Posts
    41
    #1
    ano ang effect pag nagpalit ka ng stock alternator/battery (ride is corolla xl 1992 12valve 1.3) to a bigger alternator (sorry di ko alam ang capacity) and a larger battery (2sm)? TIA

  2. Join Date
    Oct 2002
    Posts
    2,470
    #2
    syempre better power supply sa sasakyan mo at better charging para sa battery mo. kung magpapalit ka ng alternator stick ka na lang sa stock size ng battery mo.

  3. Join Date
    Aug 2005
    Posts
    2,063
    #3
    eh kung nag change ka ng higher battery tapos di mo na change yun alternator mo ?

  4. Join Date
    Feb 2006
    Posts
    705
    #4
    ok lang naman siguro na mag change ka ng battery as long na 12 volts pa rin siya..

  5. Join Date
    Dec 2004
    Posts
    41
    #5
    hindi ba mahihirapan ang makina kung larger alternator, kasi ang the car was designed to have a smaller alternator? what is the difference between 1sm 12v and 2sm 12v?

  6. Join Date
    Oct 2005
    Posts
    926
    #6
    Quote Originally Posted by nim ra
    what is the difference between 1sm 12v and 2sm 12v?
    afaik size sir...mas malaki ang 2sm sa 1sm...yun lang ata.

  7. Join Date
    Oct 2002
    Posts
    2,470
    #7
    the bigger the size ng battery mas matagal yung reserve power nya (the power that it can exert if in case masira ang alternator). hindi naman mahihirapan ang makina kung magpapalit ka ng mas malaking alternator. kahit ano pa size nung alternator mo kung di naman maganda ang pagkakabit at di naka-align na maayos sa makina, mahihirapan yung makina.

    kaya ko sinabi na wag na magpalit to a bigger battery kasi ganun din naman ang voltahe nun. pero if you want more reserved power then go palit ka. ang importante nare-recharge ng alternator ng mabuti yung battery.

  8. Join Date
    Oct 2002
    Posts
    5,235
    #8
    An upgrade to a bigger battery (1 to 2 sm)you'll notice that your HU lights doesn't blink that much as before. You'll have longer reserve cranking power. Do this if you intend to install amps, upgrade your headlamps (100w+) and foglamps. A higher amp alternator say 100amp will charge you battery faster as against your usual 65 amp stock unit. Of course the alternator stops charging the battery when the regulator/IC tells it so.

    If you don't intend to add amps and fogs your better off with your stock battery and alternator.
    Last edited by afrasay; March 12th, 2006 at 09:24 PM.

  9. Join Date
    Aug 2005
    Posts
    2,063
    #9
    ahh.. thanx sir.

    me nag change na ako ng battery big for my rolla.. okey nman..

  10. Join Date
    Feb 2005
    Posts
    347
    #10
    I have a charade and it uses 40A alternator ata. If i upgrade my alternator to a higher Amp rating, mahihirapan ba ang makina? TIA

  11. Join Date
    Jul 2006
    Posts
    3,600
    #11
    Depends on the current load you have (do you have a sound system? bone stock ba siya? etc). Do you experience flickering lights? Check all other electricals first baka ground lang or loose connection.

    The battery is just there to start the car. Once that happens the alternator generates the electricity necessary to run it (spark plugs, ECU, onboard electronics, etc).

  12. Join Date
    Feb 2005
    Posts
    347
    #12
    I'm planning to have an audio upgrade eh.

    seps, and sub lang naman ang i-drive.

    lahat ng electricals stock. baka lang kasi kapusin.

  13. Join Date
    Jul 2006
    Posts
    3,600
    #13
    Then upgrade the alternator and the battery to a deep cycle type. Wiring should also be upgraded so that the extra charging won't be impeded by the thin, stock wires.

  14. Join Date
    Feb 2005
    Posts
    347
    #14
    Huh?! Do i really need the deep cycle batt?! Afaik, the battery is just used to start the car.

  15. Join Date
    Jul 2006
    Posts
    3,600
    #15
    Granted, the battery is just used to start the car. That is its main purpose.

    But when you use the sound system when the engine is off, you'll need that extra juice. The battery also runs accessories for when the engine is off, not the alternator.

    So if you'll need that extra juice, you'll need a bigger alternator to supply enough charge to the battery. It would also be good to upgrade the wiring if yours isn't up to it.

    I'm no electrician so I don't know the technicalities that much.

  16. Join Date
    Nov 2003
    Posts
    3,848
    #16
    no need if your car is stock. kung may audio setup pwede pa.

  17. Join Date
    Feb 2005
    Posts
    347
    #17
    Should i try first if kakayanin ng stock before upgrading my amp?

    im planning to have an SQ setup eh. (seps, and 10" sub driven by cheapo v12 amps on pioneer 2950)

    May effect ba sa engine(degrade in performance?!) yung higher rated alternator in terms of load/bigat sa engine?

  18. #18
    mag upgrade kayo wag lalagpas ng 90AH, kundi susunugin stock wirings nyo.

    pero kung makakakuha kayo ng ganito->

    solve na solve, kahit stock battery size pa yan(alternator ng maxima ko, 5 years na sa akin)

    90AH min, 120AH max bosch alternator from a benz...di ko lam kung anung model, parang diesel,e....

    for a charade naman, 90 is enough. basta eto ang mahalaga-> pulleys and bolt mount nya, dapat pareho sa stock ang pulleys at bolt holes ng mabibili mong alternator, connectors kahit hindi basta pagawa mo sa alternator shop na binilhan mo ok na yan...wala naman masyadong effect ang alernator basta mahaalga, di nalalayo ang size ng stock pulley sa pulley ng new alternator mo.. at basta kasya sa engine bay!
    Last edited by alwayz_yummy; May 6th, 2007 at 08:23 AM.

  19. Join Date
    Feb 2005
    Posts
    347
    #19
    Well, sir yummy says it all. That's the kind of info I need. Walang paligoy ligoy at off topic. Huli agad ang tanong ko.

    I'd upgrade my alternator to a revo alternator. 90amp ata yun and it has same bracket mountings. Baka i-swap na lang ang pulleys.

    Alabyu all.

  20. Join Date
    Mar 2006
    Posts
    1,577
    #20
    As per changing alternator, is there a shop that sells alternators for some not-so-famous vehicles? Specifically for Chevy vehicles. La kasi akong mahanap sa Evangelista ng nagbebenta. Panay pang-Honda, Mitsu, at Nissan.

    Need to upgrade due to sound setup.
    Last edited by batang_raon14; May 7th, 2007 at 01:07 AM.

change alternator