I bought one of thoes chrome 100 amp high-output alternators from a while back, and it seems the belt rides high on the pully, sticks up over the pully about 1/4 inch or more. On my old alt., the pully was much wider in diameter and the belt rode down in the pully deeper. I also noticed that I only get 12.85 volts at the battery when the car is idleing, but it goes to 14.00V when the engine is revved high. I heard that I should be getting at least 13.50-14.50 volts with the engine idleing. My questions are:
1. Would the smaller pully and smaller groove on the new alt. be sacraficing me RPM's causing the drop volts at idle?
2. What can I do to increase the RPM's of the alt. pully at idle for more volts.
I replaced the voltage regulator and alt. wiring harness at the same time as the new alt.
The reason I am concerned about this is because I will soon be adding an electric fan to this car, and they said the fan blows more CFM's with the more volts you get to it, espessially at idle would be helpfull. Any help or recommendations is appreciated! Thanks gang.
1. Would the smaller pully and smaller groove on the new alt. be sacraficing me RPM's causing the drop volts at idle?
2. What can I do to increase the RPM's of the alt. pully at idle for more volts.
I replaced the voltage regulator and alt. wiring harness at the same time as the new alt.
The reason I am concerned about this is because I will soon be adding an electric fan to this car, and they said the fan blows more CFM's with the more volts you get to it, espessially at idle would be helpfull. Any help or recommendations is appreciated! Thanks gang.