Alternator Max RPM
The maximum Alternator shaft RPM is 16,000 RPM. This RPM is calculated by taking the crank pulled diameter and dividing it by the alternator pulley diameter. Then multiply it by the max engine RPM.
Underdrive Pulley Note
Charging performance is tested with stock size accessory drive pulleys. Underdrive pulleys will lower the alternator RPM thus preventing optimal charging at engine base idle speed.
Selecting a proper alternator for your Fox Mustang build will be a crucial part that you will need to consider. This will also include all associated parts that go along with either a stock or aftermarket upgraded applications. Within this Fox Body Alternator Buyer's Guide, we will cover everything you will need to k... more
Posted on 7/26/2022