Electric Superchargers

[da_msta_chizz]

In short, if it's easy and value for money, everyone is doing it already... what do you reckon?

cause everyone is being a pussy thinking a fan will stuff up their car.
harden the f**k up and give it a try.
if it doesn't work, rip everything else off and print out a K&N logo.
then proceed to sell the filter that came with the kit as a a K&N to make money.

See? now doesn't that make sense?
go on, someone try it - who knows, maybe it will give you like an extra 15kw..

[Delvance]

I would think personally that the reason the setup (the cheaper e-ram grade options) are only setup to work under what as that way, it conserves the fan life. From their text and theory, these units will be running a low grade good fan (confusing...? Say, buying a bmw 318i) and they don't have a very long life span with the speeds they have to spin at plus the current they are dealing with. So to maximise the life, it only operates under what. The rpm's the bushings would have to deal with would be pretty high to generate pressure and don't forget the fan construction will most likely be made of just high density plastic or something similar. If the fan was always operating when the engine is running, it'd die pretty quick i'd daresay.

As to why no one is running these... well couple of reasons methinks

1/ Electric superchargers have a bad rep and almost no one believes in them. Just look at the beginning of this thread to gauge the negative aura surrounding them. And because the fleabay ones are so common, a lot of people automatically think fleabay electric supercharger when the topic is mentioned.

2/ No advertising/promotions... I gotta say, flicking through HPI, fast fours, hot fours, motor, etc etc... there hasn't been any ads for these electric superchargers and with that creates zero demand for these products...giving zero word of mouth/information dissemination.

3/ People follow tried and true recipes. Why waste so much money not knowing if the product will work when you can spend a similar amount of money on mods that will like an exhaust or ecu etc.

Thinking about it again, i think when we were inquiring about the e-ram at autosports, the owner mentioned that it had been done to another customer's car and there was some gains. I can't recall if i heard this or not 100% though.

All my 2cents.

[nicholas]

Sounds good buddy; your reasoning makes sense... perhaps it IS just the fact that we're all sheep, but I'm still suspicious because it delivers better bang-for-buck than exhaust / extractors does, except everyone has those done and no-one has played with this?

I guess the_msta_chizz is right, time for someone to put their money where their mouth is. I'll pledge $20 towards someone buying it and fitting it to their car, running some dyno tests off and letting us all know.

Any volunteers?

[pete_gpx]

Yeah, f**k it, I'll throw in $20 or so if someone is willing to volunteer to fit it and do some before and after dynos.

[aza013]

OK OK I will be the ginny pig that puts it to the test
I will have a look around and get what I think is the best one and put it in.
A dyno run befor and after will be done.
that way we can put this to rest

[da_msta_chizz]

I don't know..you can get some really good fans, and for $700, they'd damn well want to come with a good one.
for example, i know a PC fan that can push 220cfm+ at 12 volts (120mm), and it's rated to last as 150000 hours at full speed..
that costs $40.

oh, and aza,
what about your 'no not a turbo lol'?
this electric 'supercharger' doesn't count yeah?

[Delvance]

I don't know..you can get some really good fans, and for $700, they'd damn well want to come with a good one.
for example, i know a PC fan that can push 220cfm+ at 12 volts (120mm), and it's rated to last as 150000 hours at full speed..
that costs $40.

True, but don't forget at full what, the unit is drawing 60 amps from your electrical system...not a small demand by any stretch of the imagination. If the unit was always on, driving even at half throttle would probably require 30amps. For reference, turning on your low and high beams at the same time won't even draw 15 amps once the filaments warm up (matter of microseconds).

With the increased current demand from your car, your alternator is gonna have a hardarseing time plus your batt. ain't gonna like it too much either.

With the high current consumption, i reckon the fan won't like the heat produced either, leading it to a premature death.

Another issue with your $40 computer fan example (i actually have one of these fans btw, from my overclocking days haha) is that the fan size is 120mm, which is around 4.7 inches... obviously the larger blades make it easier to move air hence it needs a lower rpm to create a higher cfm (provided it has a decent fanblade design), but the electric s/c is sized at around 3 inches to be friendly for intakes and engine bay space. So for a fan that is considerably smaller plus pushing out almost 4 times the cfm of your computer fan example, it's probably gonna cost a fair bit more.

Still my 2 cents only, i might be wrong.


Aza013,

Lol... brave man Well seeing as this discussion already has links to the e-ram and they were the original mob for making one that does seem to actually work. Could always just get the e-ram itself ? They got a proper website with shopping cart etc. I also pledge $20... in fact *runs off to check some stuffs*.

[Bennoz]

ROFL at this entire notion & thread!

Just ask yourselves this: If this can be made to work, then why hasn't a car manufacturer already done it?

Thats all Im gonna say on the matter.

[Delvance]

Way to pop the bubble Bennoz lol.

I'd imagine it's not included in oem equipment level because normally, it would provide a small resistance to air flow (not under what) and thus harm emission levels etc. Plus the idea ain't the greatest since sliced bread.

Google'd the product...there SEEMS to be some independent testing showing a few hp gains depending on car, so it may work.

I'm leaving it at that, over this topic

[aza013]

oh, and aza,
what about your 'no not a turbo lol'?
this electric 'supercharger' doesn't count yeah?

well its not a turbo and it will not be staying on the car for long as I dont think it will do a hell of a lot if any thing.
I am only doing this to put up info on this and to put an end to it once and for all, so we all will know if it works or not.

also after reading posts like this time and time again I want to see the outcome to it

[I8A4RE]

Agree with ben.

You guys all suck for continuing this thread on

[aza013]

Agree with ben.

You guys all suck for continuing this thread on

oh come on Simon you too can have 1kw atws on top of what you have with this

[Yardie]

Nice to see this has turned into a global discussion!

This is what I usually post on the UK FTOOC when this topic gets discussed on a fortnightly basis!

Not my words but have a read of them anyway:

Electric 'superchargers' will not provide boost on an automobile engine and will most likely rob a good running engine of high-RPM power by RESTRICTING airflow.

Consider for a moment what a supercharger must do to increase power. It must actually PUSH more air into the motor than it draws in naturally. Creating boost means moving a large volume of air (CFM) at increased pressure (PSI.) Most of these on eBay are nothing more than bilge exhaust fans designed for use on inboard boats. They might *seem* to move a lot of air but you honestly have no point of refrence, you don't know how much the motor sucks naturally. I assure you, it's substancially more than a plastic fan can provide.

Small true superchargers like the Eaton M-90 push only a small volume of air for a boost application. However, this small supercharger will push MORE boost than a commercial quality, gas-powered, backpack leaf blower and I'm sure we've all seen what they can do. Toss an electric vent fan like these into the comparison and you have effectively brought a rubberband to a gunfight.

How can an electric blower actually rob power? Simply put, the electric fan cannot push as much air as the motor demands at high RPM so the engine has to not only suck air but it also has to pull the fan faster than it's already moving.

Notice that few of the electric 'supercharger' auctions will provide the Boost @ CFM rating of the fan and that's for good reason. Simple math can determine the point at which they ROB power from YOUR engine if you simply know the size of your engine.

If electric fans could boost a car engine, manufacturers would be doing it.

Simply cleaning the junk out of your car and reducing weight will have more impact on your performance than a bilge fan.

But hey, if you have money to burn, buy one, test it on a dyno and prove everyone wrong.

[aza013]

I am not trying to prove everyone wrong I just want to get some dyno sheets up so every one can see insted of just reading info from the sellers, I to think it will not do a lot if anything at all but some one has to do it

[dstocks]

Whats the harm in trying it. If its a scam then this will prove it with real evidence and if there is some speck of truth in it, then that will be a good outcome too.

All I wanted to know was a little more about it all. I think I have that now. Didnt want to start a club war....

[KJ_bob]

Yardie, I think everyone generally agrees that the ebays ones won't do as much as standing next to your pod and farting into it... it's the likes of items such as the e-ram that i think are keeping most of us currious. They seem to have a name and a product which they are demanding good money for, and putting to rest weather there argument is just bullshit or if theres some truth in it seems to be the game

i would really like to see this settled...plus next time it comes up on UK FTOOC you'd have a couple of dino sheets to shut everyone up

+1 for effort to the ginny pig

[KJ_bob]

All I wanted to know was a little more about it all. I think I have that now. Didnt want to start a club war....

i'll bring the torches!

[da_msta_chizz]

re-read my posts back a page.

a GT30 only pushes 350cfm at 4psi - which is still boost (maybe 10kw?),
a decent produced fan (assuming the non-ebay ones have a decent fan) could hit 300cfm, around 3.5psi - this would be a small, cheap all plastic fan which would cost maybe $50 - not $700 as this one so clearly is.

combine this with the fact that with some mods or a decent one of this, you will have a P-plate legal form of forced induction not noticable without an inspection..
after all, you can be damn sure i would spend $700 to get something that can push 5psi into the engine turbo style.

[Yardie]

I still don’t think it would work, but am more than happy to be proven wrong. I don’t think you can compare a GT30 designed to push 350cfm at 4 psi, to a 300cfm fan designed to vent to atmosphere.

The CFM ratings on fans generally assumes they are in an unrestricted environment. The GT30 may well push 350cfm at 4psi, but it is designed to do so at that pressure.

The fan may well be able to move 300+ CFM, but it is designed to do so at normal atmospheric pressure. Put it in a restricted environment such as an air intake and I doubt it would be able to produce any noticeable pressure\boost.

However, I'm no expert and if it turns out I'm wrong and we can get 20-30bhp from this I'll be behind you in the queue!

[I8A4RE]

NOOOOOOOOOOOOOO. this thread still continues

I now want someone to try it, just so you can end this thread