<VV>Mo Fan

[John Beck]

An amp meter probably isn't the best way to test this.  I would expect
the total power consumption to stay about the same.  The motor is
producing less torque at higher RPM's, more or less the same HP.  The
power consumption might even go up a little if the vacuum cleaner was
designed for maximum efficiency at maximum suck.

A better test for the Corvair blower would be to idle at a typical
driving RPM, say 2500 RPM with the damper doors open.  Block the air
outlets and check the tach.  --J.B.

Daniel Monasterio wrote:
> 
>     This sounds subjective, best is measuring electric current with a clamp meter. This way you can be really sure which way uses more power. Have a clamp meter at hand but could not find wife`s vacuum cleaner !!