Electric "superchargers"

[hakushi no sakura]

I've read many threads that debunked the electric superchargers, but I have forgotten all of them. Why don't they work? I have a feeling it's because the car's battery will never be strong enough to move the turbine sufficiently. What else?

 

[derrick1623]

nah, the battery will push that thing to full capacity, the only problem is that they push only a little more air than your computer fan. do not buy one of these, get either a full supercharger kit(not out yet), or go turbo for major gains.

 

[hakushi no sakura]

oh no, I'm not planning to get one of these things, I don't even plan to go fast in my P5. Cops find it too attractive Anyways, my friend wants to get one of those, and I"m trying to talk him out of it. And i didn't mean the battery was too weak to spin the fan itself, I meant the battery was too weak to make the fan spin in such a way that there would be an equivilent air compression as that of a conventional turbo.

 

[derrick1623]

you(he) will NEVER get the same velocity as that of a turbo, this only speed up the air-flow, a turbo compresses the air, thus forcing more into the engine(help me if im wrong spool,ben,ch,stou,etc...)

 

[hakushi no sakura]

I gathered as much from common sense, thanks for the help though I'd love some real technical information though, the summer is boring me outta my mind. I need to prepare for mechanical engineering in September too, so this is a good start

 

[derrick1623]

was shootin for 1000 posts, but...

im tryin to help whomever i can. im sorry im not all technical, i just think that an"electrical supercharger"(as seen on EGAY) is a total waste of money, how about some turbo'ed points of view on this one???!!!

 

[hakushi no sakura]

Sorry if you took offense to that, I appreciate your insight Wow, this is turning into a chat or something.

 

[Kooldino]

Personally, I'm more accepting of them. I don't see them as a TOTAL waste of money...because...

1-it probably does SOMETHING...maybe 2whp somewhere in your power band (probably low end, though it MAY hurt high end)

2-If you win a bid on ebay, it will cost you like $30 shipped

3-A CAI is typically $200+ and for OUR cars, won't make too much more of a difference over these things.


Personally, I wouldn't get one BC they're kind of cheesy, but you'd probably be hard pressed to find a $30 mod that would do as much as this. Tell him to buy it so he can dyno it and see once and for all if it makes a difference.

 

[70]

I think this all really boils boil down to, how many people have actually bought these things??

 

[hakushi no sakura]

I tried to see if there were any pass buyers to contact, but all the sellers have zero feedback. That's kinda odd, considering they say in their comments that they will have trouble replying e-mail because they get 500 e-mails a day :bs:

 

[pr5owner]

ive heard about these "Superchargers" they are ghetto but they do actaully provide you with 5-8HP for really cheap but i don't think they last that long .

 

[Traveler]

They won't provide you with jack, doodly or squat. You know how much air your engine moves? More than that thing can keep up with. The only way a fan is going to provide any gains is if it seals to the intake and has blades that overlap each other for a long distance in order to overcome air wanting to feed back through and around the blades. If you take a fan like the one they are selling on E-bay and put your hand over the outlet, you WILL NOT feel any positive pressure trying to push your hand away from the fan. Instead what will happen is the air that the blades manage to push will bleed back around the tips of the blades and bleed back through the center hub area. There is no possible way that this thing will pressurize an intake. Also, it will provide a nice restriction because it takes up area that the engine is trying to pull air through. And, since it's spinning, it will provide even more of a restriction once it reaches its maximum air flow capacity. When the no doubt cheap bearing gives out it will send plastic from the blades contacting the case into your engine. This is not a good thing.

The only one that I've seen so far that MIGHT work, is a much better engineered piece that takes 50 amps to run when it's on. This will suck up a good deal of any power that it produces since there is no way to push it past 1/2 PSI.

 

[Subghetto]

what about this electric supercharger? I don't even think they make it for our car but it looks legit not like the e-bay crap.

here is the link: electric supercharger

 

[toucci]

the problem with fans is they have a LOT of trouble actually compressing air, although they can definitely move it. so you will only get a couple PSI boost at best with these things. I guess one properly done that had lots of power and ran at a speed relative the engine RPM would be good, but it just doesn't exist.

 

[scapamouche]

I posted in the other thread, so I won't repeat what I said there beyond that I had one of the old style units once upon a time, and I think it was worth about 1 sec in the 1/4.... Unfortunately, it was REGAINING the 1 sec I LOST by installing it: Big electrical load, therefore the ignition system was hurting and a big restriction in intake airflow when turned off, reducing power when the blower wasn't on...

I think that new 18HP S/C MAY be the real deal, but good luck getting an electrical system that can handle it... I guarantee that your stock system can't... My crappy one only drew 60 amps steady load (that SHOULD have been a sign to me ) and it was beating the crap out of the elec system in my '92 Sentra SE-R. Now try putting over 1000amps of steady state load on it... BOOM!!!!

 

[atsturbo]

You are absolutely correct in describing the restriction most small fans pose to the engine. The ones that flow 800-900 CFM and draw 50 amps dont restrict flow, but at best make 1/2 psi--hardly worth the $300 pricetag ($60 to $150 per hp gain) at least in my opinion.
Of course the same thing can be said of my ESC-400 costing $2500 for the system and gaining 50-100 hp. ($25 to $50 per hp)
Some of you have been concerned about the electrical system on your car supporting the ESC. WHY? Does the ESC run off your car's system?--no--the cars electrical system could not support 1200 amps. So we use extra batteries that are completely seperate from the cars battery and or accessories and the car runs like stock when the ESC is off. The alternator will charge the ESC batteries the same way it charges your car battery after starting the car. When you start your car and drive it the alternator is running the car's system--lights, stereo, wipers, etc-- as well as recharging the battery. There is always a surplus of alternator energy doing nothing after the car battery is recharged. That is when it can charge the ESC batteries.
Did some additional dyno runs at SFP on 12-11-03. The hp gains defy everything the sceptics claim. 80-120 hp @ 5 psi. Impossible, yet right there in writing from the dynojet computer. Both the Avenger and Altima saw 100% gains at certain points in the powerband.
We invited everyone to come watch and a dozen showed up. Thje blower 'whine' is what catches most people off guard--it is VERY LOUD and pronounced. Noone will wonder if you are spraying as the noise will tell them 'something is going on in THAT car'
Going to Moroso next weekend for the Sport Compact Import Nats. We welcome anyone to come see this NA mid 17 sec Altima run high 14's with the push of a button.