Drivetrain swap

[Rush Power Systems]

here is one thing to consider, at idle you are running off batter, as you hit the gas the voltage spikes and the alternator goes to full field to make up for the drained battery. By the time you get to the next light the battery is recharged and the process starts all over again. all this is hard on the charge circuit in the ECU. so if everything seems to be OK above 1200 i would run the numbers on our calculator here: http://www.rushps.com/tools.html use 14 volts and your total wattage, my point is you are probably better off with a 150 amp alternator.