Electric Supercharger Options

[VavAlephVav]

Wondering what experience anybody has had with these little electric supercharger systems like this one,

http://www.streetbeatcustoms.com/RAM/Super...r-System/18149/

says it makes 1psi boost and gets 15 hp. surely not as much boost as a nice supercharger,
but at $400 compared to the $6,000 kit for a supercharger, I may have to at least consider it ya know.

[VavAlephVav]

Ya, I know a thing or two about the big centrifugal compressors they use for large Chiller machines. ...and I was wondering how you can handle more pressure with a rubber intake hose


yet, having said that I also have seen the one where they mythbust the CAI, and say it's junk too. Like the comments he addresses at the beginning about airflow. When you are traveling down the highway you are moving through the air at 60 or so mph,
the car is moving through an infinite volume of air surrounding the car, this cannot be properly simulated by a little bitty 24" fan in front of the car.
If you put your dyno inside a Wind tunnel I could call that accurate. a 24" round fan is 12^2(3.14)=452 sq" or 3.14 sq' , with a velocity of 1000 fpm that's only about 3200 cfm. Ive seen some specs that say these fans put out up to 6000 cfm.
so let's see, the car is about 70" wide and 50" tall, if you make a box slightly bigger call it 80"x55" =4400 sq" or 30.5 sq', there is at least this much air surrounding the car as you travel 60 mph, which is 5280 feet per min.
30.5 sq' x 5280 fpm = 161,040 cubic feet/min.

I'm sure the electric supercharger is junk, because its a fan and not a centrifugal compressor. but I think their setup isn't good for testing things like the cold air intake.