electric supercharger???

[GQ Bear]

Anyone seen these in action? Do you reckon it would work to help power up a petrol 4.2L Patrol?


http://cgi.ebay.com.au/Twin-Electric-In ... dZViewItem

or

http://cgi.ebay.com.au/Electric-Superch ... dZViewItem

I understand it would not even come close to performance of belt-driven blower, but do you reckon it'd give noticable boost?

[HotFourOk]

[Shorty40]

They will only work in conjunction with 3 of these http://www.hicloneqld.com/

[jeep97tj]

http://cgi.ebay.com.au/High-Power-Perfo ... dZViewItem

Plus 1 of these, try 2 if u think u can handle the power

[droopypete]

A mate of mine hooked up a 12 volt car vacuum cleaner to his lawn mower (reversed the polarity), it went like the clappers for a few minutes
Peter.

[cloughy]

ummmmmmm. no.

[grazza]

Had a look at their site and they are not making outrageous claims. 4-5% increase for bigger motors.

Pulls 46amps at 11.5 V = 529 Watts - pretty powerful if its spinning at 27000rpm. They reckon up to 3psi.

Might give a little extra "kick"

[GRIMACE]

Had a look at their site and they are not making outrageous claims. 4-5% increase for bigger motors.

Pulls 46amps at 11.5 V = 529 Watts - pretty powerful if its spinning at 27000rpm. They reckon up to 3psi.

Might give a little extra "kick"

ummmmmm. no...

[grazza]

I suppose you would have to combine it with one of these:

http://www.sunamiturbo.com/

..but seriously, it would not surprise me if it made *some* difference when launching, since otherwise there is no "ram" pressure from a cold air/snorkel until you get up to speed. Probably useless after that.

[F'n_Rover]

Had a look at their site and they are not making outrageous claims. 4-5% increase for bigger motors.

Pulls 46amps at 11.5 V = 529 Watts - pretty powerful if its spinning at 27000rpm. They reckon up to 3psi.

Might give a little extra "kick"

I would think that the amount of energy required to compress air to 3psi at a usage rate of around 400cfm? (average mtr wot?) would greatly exceed 529 watts.
The fan blades alone would only be (max) 60% effieciant. the motors would be tops 80% which leaves - around 200 watts of power actually left doing any work. KROK O' POO

[lay80n]

Plus the power has gotta come from somewhere to drive the stupid little contraption. You alternator has to work harder therefore there is more load on the crank. Basically they are a cheap trick aimed at people who dont know much about them, or at ricers who are too fully sick to realise how crap these gimicks are.



Layto....

[DamTriton]

You would be better with a petrol powered leafblower....

[Hekta]

You would be better with a petrol powered leafblower....

That gives me an idea....

[bogged]

you will also need the electronic blow off valve, a fitch and as stated a hiclone

[Jimbo]

I'm not saying ebay ones work but the idea of electric superchargers has some merrit.

They main problem is that most cars run on 12v which means that to power a decent electric motor ie 5 to 10kw you need to draw around 400-800 amps.

If your car ran on a much higher voltage the current draw would be much less and if the alternator was up to it, it could work.

Yes i know you are using power to make power BUT and normal supercharger does exactly the same thing!!! (on a top fuel drag car it takes around 400hp to turn the superchgarger) With superchargers the power benifit is more than the power consumed.



Anyway it probably takes more than 5 to 10kw to make any real boost and the size of the elec motor would be big and heavy. maybe in teh future we might see it

[grazza]

Edit: sorry to hijack the thread, started a new one...

[Loanrangie]

One of Brocky's little black boxes will also help the hairdryer

[Mowie]

This is a quote from a guy who made his own electric supercharger. He posted this and more hillarious results like standing - 178kph over 400m.
http://www.fordforums.com.au/showthread ... force+flow

Have a read its a pisser

Its a 24800rpm cobolt motor with model jet plane 3" ducted fan unit which together it actully push air at rate of 987cfm more then what the ford 6s can suck in 5000rpm. the vortex generator spins the air even more.

Trust me, its been running for a week and I've notice a "LLLLLOT" of differance. the constapation is completely gone when taking of from the lights, 50 meter down check the speedo & it reads 87kmh at 3500rpm oops just gone pass the speed limit, going up hill is like going down it. it now cruise 60kmh at 1050rpm compare to 1200rpm.

It now feels like I'm getting rear ended when the auto changes gears, and thats without planting the floor or over revving it

We all know what the AUll XLS ute is like at the lights next to a VS or VK, I know its ****, now they can kiss my *** 20 or 40 meters down the road. I don't need KW's I want TORQUE.

I wonder what happen if I get it dyno or put in wildcat headers & 2.25" exhuast, port the head a little pit without effect ECM, with out wasting $$$$ on chips that can only produce 10 to 15kw according to the dyno but can't notice much differance on the road.
bye bye fancy chip owners. just kidding.

You can also go to these sites to see the proof this actualy works (Bull Shit)

http://www.electricsupercharger.com/
http://www.esuperchargers.com/

[mkpatrol]

They work fantastic with wheelbase after you break through the second layer of gravity

[tweak'e]

do't forget with an electricly run device you will need a speed control to control the supercharger speed. the sheer weight of the motors+alternator+speed control would make it go slower than a snail.

[DamTriton]

You would be better with a petrol powered leafblower....

That gives me an idea....

Been and done dude, it was posted in a link here quite a while ago. Funny thing is it did work

[Big Red Toy]

these electric superchargers work better with a 3 Farad flux capacitor across the terminals, stops voltage drop when they spool up

[Beastmavster]

An electric supercharger could potentially work, but not the way these things are.


2400 watts (vaccum cleaner power) might get you somewhere... but 500 watts sure as hell wouldnt.


We've seen the leaf blower and that works. You need more airflow than the engine can make. Depending on the size of your engine, determines the needed airflow.

As to the argument about the drag due to the alternator meaning that you'd lose power, sorry but to my knowledge of car electonics that's total crap.


An alternator generates far more than 13.8-14.2V unregulated, so you're wearing the same frictional drain no matter what - just over 14 volts the excess is wasted in heat energy from the voltage regulator.

The regulator is there to prevent battery overcharing otherwise 18V would be quite likely at high rpm at most alternators.

[grazza]

I was curious about that.
If the alternator is driving lights, ECU, spark and charging the battery it will be supplying X number of amps, depending on the load and charge of the battery. If something else wants 40A, like these blowers or an electric winch, does the "work" required to turn the alternator increase? I would have thought so...

So, if the battery is fully charged, no lights are on, no fans, no stereo, is the alternator easier to turn and less load on the motor? Wouldnt that mean that having your stereo on uses more fuel? I know thats a bad example, but if you are pulling 100A are you using more fuel?

[F'n_Rover]

I was curious about that.
If the alternator is driving lights, ECU, spark and charging the battery it will be supplying X number of amps, depending on the load and charge of the battery. If something else wants 40A, like these blowers or an electric winch, does the "work" required to turn the alternator increase? I would have thought so...

So, if the battery is fully charged, no lights are on, no fans, no stereo, is the alternator easier to turn and less load on the motor? Wouldnt that mean that having your stereo on uses more fuel? I know thats a bad example, but if you are pulling 100A are you using more fuel?

yep - every 500w of electric load will sap around 1hp of engine power.

[Beastmavster]

Additional load will cause idle speed to drop, sure.


But at 4000 rpm the problem is no about supplying enough power, it's about supplying too much power. Thats what the regulator kicks in to do.


Otherwise you have to design it so the alternator gives the right power at full noise and undercharges everywhere else which is kind of dumb.





In the end, the belt doesnt change, the magnets in the alternator dont change, the amount of copper wire doesnt change, the bearings dont change. So any frictional (or magnetic induction) losses stay the same % pretty much right the way through.


It's pretty much a linear thing - rpm the alternator spins at versus the amount of charge generated.


So extra current drain doesnt really make too much difference, except at near idle speed where any kind of load is going to be noticable.

[DamTriton]

Maybe the idea would be to power it from a second unregulated alternator, then as the engine speed increases, the voltage/current increase and therefore the total power going into the electric blower increases.

[mwhitfield_2000]

Hi all

My friend put a electric turbo in an Hyundai Excel from Auto joy in Sydney and it was crap they promised more power and torque (it was wired up by them as well) and there was no performance what so ever, so he got a real turbo and intercooler and he said goos bye to commodores forever.

So to answer your question they dont work especially on a truck let alone an Excel

Matty

[-Nemesis-]

What about running your air con vent back into the intake? Talk about cold air induction

[Jimbo]

What about running your air con vent back into the intake? Talk about cold air induction hahaha yeah!!

I thought of this when the coolant hose in my commodore snapped and my gas converter froze up lol
What about running your induction through your gas mixer to evaporate the gas (obviously lpg cars only) instead of coolant. It would probably freeze up on cold days and you would need a funny looking gas mixer but it was just something that went through my head ages ago