I am also skeptical, which is why I am looking around for as much info as I can find. The site I mentioned above seemed to have the most reasonable information on what an electric fan can do.

If electric induction was really that good, the automakers would just pop a $100 fan into everyone's intake.

BTW, I am not endorsing that product in any way.

 

So whats the DEAL with the electtic supercharger and that electric trubo thing on http://www.streetstyleracing.com/mitsubishi_lancer.htm

 

Here's an email exchange about that particular electric fan with someone at StreetStyleRacing:

-------------------------------------------------

Dear Sir,

I would like more information on the electric turbo advertised on your website (http://www.streetstyleracing.com/mitsubishi_lancer.htm).
Specifically:
How does it connect to the intake and exhaust systems?
Where does the electricity come from?
Do any changes need to be made to the air/fuel mixture to use it?

Thank you,
Ben Rousch

> It connect between air filter and
> intake itself. You will not need to
> adjust air/fuel mixture. Connects up
> to battery and a ground. For more
> info or to order call 209-612-4594 or
> e-mail us back. Open until 11 PM
> (PST) tonight. - Matt

Can you tell me approx how many cfm (cubic feet per minute) of air it produces?

> approx 650 cfm

-------------------------------------------------

It seems powerful enough for our engine and apparently is on all the time (unlike the e-Ram menitoned earlier). As for build quality and how much HP and torque it provides ...

But it is $200 less expensive.

 

What I was referring to was not a fan in the intake tract, and no I have not been on e-bay looking at such things. The effort was to try to inject something other than the cookie cutter "I want x amount of horse power" or "I'd buy that if I had a dollar" threads which is all that seem to be posted on this board, to get people to think instead of just wondering what they can buy and slap on the car next, so they can brag about the 5 hp gain the box says that it provides, and make a nice neat list next to their name. The majority of the replies are something to the tune of "stop looking on e-bay", Even from the moderator. Is there any wonder WHY we see differing variations of the same thread over and over?

You would need 211.888 SCFM to feed an ideal 2.0L engine at 6000 rpm, as the intake valves only open once every two revolutions (this is a four stroke motor). A fan mechanism in open air may flow 600 CFM; in the dynamic conditions found in an intake it will probably flow alot less. Fans are also not good choices to attempt to develop boost, unless the fan is very large, in proportion to the outlet, as you will get alot of loss back through the open spaces between the fan blades.

A Vortech supercharger, stripped of the step up drive mechanism, being driven by a modified motorcycle starter motor would be an interesting place to start, but it would require thought, research, and development. The pluses would be the lack of driveline loss (via an isolated battery to drive the system during speed runs), and freedom in mounting locations, without the need for complex belt / shaft / pulley drive systems. Minuses are the many that have been stated in the previous posts.

This is purely hypothetical. Just a thought exercise.

 

i bought a hand held fan at the dollar store and put it in my air box and it produced 65.354 SCFM until it fell over and stopped spinning. Just messing! good luck with your research, it looks like you have put some thought into the question, hope you come to some kinda resolution to the question of electric powered forced induction!

 

This thread is all over the damn place... but no one addressed the real specifics of it... so here is a somewhat technical explanation for you all...

Our engines pull around 254 CFM at 3600 rpms and around 400 CFM at 6000 rpms... so for a forced induction item to actually cause a gain it is first of all going to have provide at least these much air flow.

For it to actually be a forced induction it will have to be able to create the required flow, and then enough of an excess to be able to generate a pressure increase.. whether it be 1 billionth of a psi or 2 psi it needs to at least exceed the demand in air.

Fans CAN create pressure increases... and significant ones... A turbo works on exactly that principle, it's a series of fans spinning in specific directions that when coupled as such work as a compressor by not allowing the air to back feed. A single fan can also achieve this but to a MUCH smaller degree.

Anything put in line needs to be able to at least overcome the losses that it introduces to the system. The reason putting on a CAI or a Short Ram works is because there is less restriction for the engine to overcome... so you gain horsepower because you reduced the total system losses. If you put in an electric turbo and it further reduces the lossses by overcoming the losses that it creates (putting a fan blade in line will cause a pressure drop and additional turbulence and air friction) as well as contribute to further reducing the work needed by the engine to get air in then you could acquire performance gains.

Assuming all these criteria are met, then the fan can produce a viable gain, and be beneficial to your air intake system. However, to fulfill these requirements it requires a significant amount of power to turn a fan of aggressive enough nature at a high enough rpm to produce these kinds of conditions. I've looked at all the ones I could find online.. as I had once considered it... but the fact is that none of them can do it... What they actually are selling you is a high flow filter in the end.. because to put these in you have to take out your stock air box and use a high flow filter... So where do you think the gain is actually coming from? I'd bet the filter... and since a CAI can supposedly give you almost 5 or 6 hp (might be a little high of an estimate) and these guys are claiming like 1 hp gain.. I wonder where the loss between the two shows up You should be able to figure it out..

If you have any questions... just pm me.

Later all.

 

Lag would be non-existant, and you could use a solid state motor controller to vary the blower speed to match the engine needs at a specific rpm---from start of thread

When has a super charger had "lag."