It is only showing around 12.6-12.8 at the battery at idle, if I rev it up it goes up to 14.3-14.5 but right back down at idle. This is with the fans off.
This is normal and is due to the speed of the alternator / pulley ratios
I have a new Power Master 17509 75 amp alternator to put on it but am I going to accomplish anything by doing this. Power master instructions also show to ground the extra field terminal.
First question is what do the fans draw current wise?
Then add headlights, A/C, and other things that cause a higher draw current wise.
Now you have established what size (output wise) alternator will be needed.
Once taht is established the next step is the wiring side of things
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