Throwing pulley/alternator belt

Dana67Dart said

BTW

1. what rpm are you turning?
2. What diameter is you crank pulley
3. What diameter is your double alt pulley

Click to expand...

Agree on checking crank pulley diameter.

I used to kick mine at 7500 until I went to a small diameter moroso crank pulley. Idle voltage was too low however, so I went with a medium size CVF, that was the ticket.

I don't recall exact size. IIRC stock was over 7 inches. Moroso was around 5, my cvf is 6