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    tenchu's Avatar
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    1990 LS400 alternator upgrade?

    Hello, I have a 1990 Lexus LS400 that is in dyer need of a new alternator, the stock 100A couldn't keep up with my system apparently (Memphis D2 12" Mojo, Memphis PR1.1000, Clarion CZ500, Duralast Gold 880CCA, BIG3) and is on its way out the door. I'm limping the car along right now (took out the system to try and prolong the time I have) but I am in dyer need of a replacement alt. I don't want to go with another 100A alt as I know it won't last long, but i'm having trouble finding anything better than 145A, and I don't think this will keep up either, I still have plans for another amp, and upgraded components, as well as a possible sub/amp change down the road, so I want to do this right the first time. Can anyone steer me in the right direction?







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    Re: 1990 LS400 alternator upgrade?

    your stock 100a alt should have been able to hold that 1000rms




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    Re: 1990 LS400 alternator upgrade?

    I myself wouldnt be afraid to put that 145 amp in there???And run what you have,




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    Re: 1990 LS400 alternator upgrade?

    Quote Originally Posted by princ3cmo View Post
    your stock 100a alt should have been able to hold that 1000rms
    Seeing as you're running an SA setup, I was actually thinking about ditching my mojo for a pair of SA-12s... Would you trust a 100 (or even a 145) with a pair of SA-12s, and another (not sure yet) amp for components?




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    Re: 1990 LS400 alternator upgrade?

    Quote Originally Posted by tenchu View Post
    Seeing as you're running an SA setup, I was actually thinking about ditching my mojo for a pair of SA-12s... Would you trust a 100 (or even a 145) with a pair of SA-12s, and another (not sure yet) amp for components?
    Alts go with amps, not subs lol.
    145 should be plenty on your current setup



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    Re: 1990 LS400 alternator upgrade?

    Quote Originally Posted by tenchu View Post
    Seeing as you're running an SA setup, I was actually thinking about ditching my mojo for a pair of SA-12s... Would you trust a 100 (or even a 145) with a pair of SA-12s, and another (not sure yet) amp for components?
    On ur same sub amp? That 145 and a extra battery should be fine




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