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Anybody know anywhere good to get a high output alternator for the hd?
They won't work correctly; there is a internal regulator in the ecu that limits the amperage from the alternator on the HD and newer cars. Even IF the alt was designed and built for a high amperage, the stock regulator in the ECU limits that amperage to 105 amps because the ECU controls the alternator output to 13.5 volts maximum and 105 amps (with a CAN bus line from the alternator to the ECU. There is an internal regulator in the alternator, but it does not fully control the alternator output. It works with the one in the ECU to regulate the output of the alternator.i recently saw someone on ebay selling 160amp alts for the elantra, i had bought a 130 awhile back.
The ECU controls it, and the maximum voltage it will allow is 13.5 volts on the CAN bus equipped systems. On the XD2, there is no true CAN bus system as there is on the HD.the volt meter in my head unit while driving says 14.2-3 volts.
thats only for the 2006 and up elantra'sThey won't work correctly; there is a internal regulator in the ecu that limits the amperage from the alternator on the HD and newer cars. Even IF the alt was designed and built for a high amperage, the stock regulator in the ECU limits that amperage to 105 amps because the ECU controls the alternator output to 13.5 volts maximum and 105 amps (with a CAN bus line from the alternator to the ECU. There is an internal regulator in the alternator, but it does not fully control the alternator output. It works with the one in the ECU to regulate the output of the alternator.