I tried removing the fan clutch on an old V8 Plymouth Duster I had.
It actually hurt my 60 foot times at Atco raceway in N.J.
I lost about 3/10ths of a second in the 1/4 mile E.T. on a mid 15 second car.
Gas mileage suffered as well.
If I ever buy a vehicle without one, I will install it myself.