<VV>Fanz, and how they work

[Bryan Blackwell]

As an aside, Warren Leveque has reported a number of times on the fact 
that the stock pulley setup consumes a considerable amount of power.

--Bryan

On Aug 1, 2005, at 2:42 PM, Bill Hubbell wrote:

> Not entirely true - some of the wasted energy is kinetic -- turning 
> the extra pulleys, overcoming friction, inertia, etc.  It is not 
> unreasonable to assume a certain percentage of the energy used to turn 
> the stock blower fan is wasted in this way.  Also, although the stock 
> fan has inertial mass that must be set in motion, it lacks the 
> efficiency of a better design, thus wasting horsepower.  Bottom line 
> is to find the most efficient way to move the volume of air required 
> to do the job, and no doubt the stock setup wastes some of its energy.