Comments would be appreciated on the following: What would the feasibility of using an electric motor to drive the compressor section of a small supercharger? You would eliminate the parasitic loss off of the crankshaft, and simplify the supercharger because you could run it nearly direct drive off of a high rpm electric motor. 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. This would be a device which would operate only at full throttle operation, in order to conserve the battery / alternator, allowing the system to fully charge after a brief usage.

???

 

you are going to need one hellavu electric motor under there to produce enough pressure. They have some "electric superchargers" on ebay buuuuuuut i really dont think they are worth a lick. i dont think an electric motor would work, unless it was super mega ultra powerful.

 

you forgot hyper. i don't think it would work unless it was super-mega hyper-ultra powerful.

 

unless you want to relocate a few items for a big electric motor i don't think it would work, but the idea itself sounds like it could work

 

Electric motors are very good at spinning fast, but they don't have much power. Think of how much blowing power your vacuum has, and it draws current from the wall! So even if you could find a suffiently powerful electric motor, physical size and current would be very big problems (not to mention the noise).

 

wow....this topic has been discussed...search

 

Mwahaha...electric supercharging. Waaaaay to much time on e-bay. They'll spin fast alright but never produce enough power to do much of anything (eeeeeeh, that's what some people say about VTEC )

 

I need to be on more, people keep joining the "USE THE DAMNED SEARCH BUTTON" club.

 

Damn I guess I did not use the search button. What a canadian I am! I learned my lession about pointless posts. No longer will they happen.

I did realize the size constraints (I am not that dense). Aircraft APU's have small, high power, lightweight starter motors which feasibly could be pressed into service in this capacity.

But who cares right

 

I have seen an electric surpercharger that did infact provide up to 1 psi of boost. Might be worth it if it is all you can afford I guess.

 

i didn't read this post as a post that has been answered before...here's what i think. suppose u had a REAL supercharger that attached to the pulley system to induce air into the engine. now imagine that same supercharger without the pulley hookup and had an electric motor driving it. NOT THE INLINE FAN. i dunno this is what i saw when i read it. to me it sounds like an interesting idea if the electric motor could drive the compressor.

 

hay guys...now i'm no fan of trying to use fans to force more air in and get a laugh at all the ones i see on ebay but i also want to help anyone who is seriously looking into this type of mod.i was looking around and found this guys site http://www.streetstyleracing.com/mitsubishi_lancer.htm
now i don't know how true it is but with the little "electric turbo"
he claims to have gotten 20 hp and knocked 1/4 mile time by .4 seconds.i didn't persue this product because well...it just seems too sketchy to me but just passing the info to you who are.

 

i don't think it would be worth it because no mechanical action is 100% efficient, so essentially your adding another step to the supercharger because there is another or a bigger alternator to drive it and that loses some power, then the motor loses some of the power, so you would of lost less power and not have the extra weight of the motor if you just drive the supercharger with the crank.

 

Take a look at this site for what I found to be the most (aparently) honest and well-designed electric induction. The claims are modest (compared to the Ebay claims), and this system is actually designed not damage your electrical system.

I saw a long post where a guy from this place was active, he was always professional and courteous even while being flamed. He also seemed to know what he talking about when discussing all aspects of this system.

True, this is not the $20 boat bilge pump you see on ebay, but it does provide a little more piece of mind.

BTW, I did a few calculations and the fan must be able to blow AT LEAST 424cfm to keep up with our engine at 6000RPM. Any fan producing less than that will rob you of power at high RPMs.

http://www.electricsupercharger.com/

 

Ehhh.... I don't know. I think I'm still a bit skeptical about that stuff. I think I would have to see someone with it on their car first. 300 bucks it a lot to have a vacuum cleaner motor on my ride.