If you are driving it normally then you should use a clutch fan. It is less load on the motor, give you a bit more available power and will save you some gas. If you track run it at redline all the time keep the racing fan. The only functional difference is higher airflow with the racing fan. If you arent working the motor real hard the clutch fan is fine.
Rich
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Wednesday, January 8th, 2020 AT 9:27 PM