i installed a apillar with a boost , volt , and wide band for my superchrger set up , not yet installed aha . but i notice when the voltage lowers into the 13-12 volts the car runs like **** and when it stays over 13 more in the 14-15 volt area the car runs perfect . does anyone no y the voltage would be droping other then the alternator casue i havent had a batterylight come on . but im wondering y this would cause my car to run like **** ,plus y it would be doing this

 

do you have a stereo system? was it on. it should hold atleast 13.2+v constant. where did you tap it from?? humm last time i had probems with charging my belt was slipping.