does it increase horsepower?

 

$35 for a horsepower increase scheme is a joke. Conventional forced induction systems such as superchargers and turbo chargersare integrated with engine speed and generally require ECU mod to deal with modified fuel and air ratiomixtures. So called electrical supercharger blows air into the intake at a constant speed without addressing engine speed nor fuel to air mixture requirement.

In theory, more air means more HP because MAF and O2 sensors would compensate for it, but in actuality I really doubt that these things add any HP. It may bog down the motor at lower speeds even.

But go ahead. I am going to put on a turbo and flame decals on my windshield instead and get another 150HP.

 

I think it would provide a modest (very modest) boost just off throttle, but would work against you at higher engine speeds. here is my thinking: the electric fan would build a small amount of boost in the airbox ahead of the throttle plate. When you initially tip into the throttle, the extra pressure in the airbox would push a bit of extra air past the throttle plate giving you a little extra torque just after tip in (this assume a NA motor, not a turbo). As engine sppeds rise, the air required by the engine will exceed the ability of the electric fan to pass air at which point the fan starts blocking air flow to the engine and reducing horse power.

The key is the boost the fan can hold (I saw 1 psi on the add, big whoops!) and the amount of air the fan can push (CFM, which I saw NOWHERE on the web page) in relation to the air requirements of the engine (displacement times RPM/2). So a 2.8 liter motor would require 296 CFM of air at 6000 rpm from the fan to do any good.

Bob

 

thanks guys. i won't be wasteing any of my time on them then. just thought i should ask you guys.

 

yea you have a nice car get nice parts

 

i am starting to realize this. the difference between the a4 and a6 is like the difference between a impreza and a legacy