A mechanical load is alot more of a load than an electrical load. When it relates to the fans in question. It takes alot more work force to make something mechanical work, than it does something electrical.
If you ever owned a 3.0L Toyota and replaced the mechanical fan with an electric one. You'd of thought you added 2 more cylinders.
When the Mechanical fan in my 1996 E350 Motorhome kicked in, it sounded like you were going to takeoff and then you might as well forget climbing that hill. You could feel it slown down no matter how far down you pushed the go fast pedal.
I agree with STEELSHOT too
Quote:
|
isn't the point that a mechanical fan is operating and creating a load even at speed when it isn't needed? An electric fan turns off when the forward motion of the vehicle is pushing air past the radiator, thus no fan load and better MPG
|