Big 3? Is my alternator powerful enough?

  • Thread starter Thread starter Matt M
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Matt M

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I need to put the Big 3 upgrade in my car. It's a 96 s10 4WD blazer. The stock amp puts out 105 amps. Would this be enough to power the system or do I need a higher output alternator? Thanks
My system is pulling just under 650 RMS watts.
 
i got a 1996 gmc jimmy with a brand new sound system pushing out 300 watts rms and my shit dims a lil bit but my alternator is fine...u got about double my rms range but for a old alternator its about over like 600 or 700 watts rms from my knowledge...if your subs are already hooked up turn ur car on and crank ur system. Turn on ur headlights and if they dim pretty deep then that means ur losing power to your ur car which would eventually overtime cause u to purchase a new alternator....if u got a cap it should be reading between 13.5 and 14.8(Volts) which is what your alternator is slightly reading which is real good...the cap pretty much tells you how much voltage ur alternator is pushing out and allowd the power drawn from ur battery not to drag.
 
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