Everyone knows the bilge blowers are junk but it looks like there are some viable E-Superchargers.

[media]http://www.youtube.com/watch?v=NncTM9DEf8Y [/media]

 

you get what you pay for........

I wouldn't put this on a Geo Metro - so why are you posting this?

 

hahahhaha...to order to supercharge you need to compress the incoming air, you think you can do that with a homedepot fan?

 

I hear in a comparison with the turbonator it came out on top.

 

Please keep in mind that I'm not very tech savy but my first questions would be...

What's the wind speed on a turbo winding up to 30,000+ RPM or what ever speed they get up to at high engine RPM...

What about a belt driven Supercharger...

Actualy, what about normal air induction, that is, the air that goes into the engine normaly without any form of force induction...

I would need a lot more proof that they did anything but inhibit the airflow to the engine before I bought one.

 

Speed cost money;How fast do you want to go...???

 

i thought the saying was

speed cost money, how much do you want to spend ?

 

Your car breathes in 1.1 liters of air every revolution of the crank (2 of the 4 cylinders have an intake stroke on each engine revolution)

At 6000rpms, your car breathes in 6600lpm
At 8000rpms, your car breathes in 8800lpm

If you look closely at the video, he's measuring edge velocity, because the velocity in the center of the air column isn't moving as fast as the boundary. Every time he placed the windspeed guage at the edge to get his highest reading. That's because the fan blades are moving significantly faster at the edge than in th center.

Let's ignore that fact for now, and assume the entire air column is moving at the stated speed. He never said the units he was measuring in. Could have been kph (australian company), but I'll give the best case and assume mph. I'm guessing that was a 3" air column, and at 76mph, that's

76mph => 1.27 m/minute

At a 3" diameter, the cross section is 7 sq. inches.

That works out to 563270 cubic inches of air per minute delivered by the blower.

A cubic inch is 0.016 liters

The max delivery of the blower is 9012 lpm.

That barely keeps up with the max pumping of your engine without the blower. In reality, the blades will just be spinning in an already moving column of air.

If we bring things back to reality for a minute, the air column in the bench test is probably only moving half to 2/3rds what I generously calculated, say 5-6000lpm. If this were a legit test, they'd have a real draw-through flow meter, not just a wind speed meter. If it was actually kph and not mph, we're probably look at something closer to 3-4000lpm. Your engine potentially moves more air at 3500rpm than this 'supercharger' can pump.

To actually build pressure and air density, you need air delivery that is signfiicantly higher than the pumping volume of the motor. And you need impeller vanes specifically designed to build/maintain pressure, not just to blow air like a fan blade. I'm not convinced these E-superchargers are capable of either.

 

also, if this DID work for some reason, you can't just pump more air in there. you need some kind of engine management just like all supercharger kits come with, not just attach a blow dryer to the front.

also, i dont see why you need proof it DOESNT work. just because it's called a e-supercharger? wouldn't you need proof it does work?

 

what about an e-ram?? I didn't believe about the e-ram until one guy locally actually bought it. He gave me a before and after ride, (and his gangsta boost gauge that only went to 1 psi) and there was a difference!

However, for the money, nitrous is a better option