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Showing results for tags 'Juan Rodriguez'.
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So a few weekends ago, Juan and I drove his Altima over to CE Auto Electric Supply to install a Big 3 kit on his car. It is a 2010 Nissan Altima 3.5SR, stock electrical system (160A alternator), with (1) Rockford T1500-1bd loaded at 1 ohm, and (2) Rockford T600-2 amplifiers loaded at 4 ohms stereo. The T600-2s are modified to put out max power at 4 ohms and do around 325W/ch at 4 ohms. In total, around 2800W. <Rant mode on> Yes it is a capital "W", named after James Watt. Also, I didn't put "W RMS" as there is no such thing. <Rant mode off> We tested the battery and found it to be weak (the Nissan dealer tested it and said it was fine 2 days prior). So first things first, we swapped out the battery for a new glass mat type. The reason for doing this was because during loud transients the lights would dim, and the CVT transmission would also trip out and make the car jerk. After the new battery was installed the problems were less, but still existed. So then we installed a run of 1/0 AWG to factory run of wire from alternator output to battery +. Then 1/0 AWG was added from alternator case to chassis of vehicle. Also, 1/0 AWG was added from chassis of vehicle to battery -. The results were fantastic, no more dimming, and the transmission behaves at it should now. See the before and after videos below which illustrate the voltage dropping problem reduced drastically. Before the upgrades: From 36 seconds to end After the upgrades: Two things can be noticed immediately. 1. The resting voltage is now 14.3V whereas it used to be 14.0V. The minimum voltage hit was 12.2V whereas it used to be 11.3V. To put a little math to it: 12.2V / 11.3V = 8% voltage gain. Since Watts is proportional to Volts squared we now have 17% gain in wattage AND the lights are no longer dimming Winning
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- CE Auto Electric Supply
- Tony Candela
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