what do you think, are these BS ?

[HangOver]

better economy, more power etc etc BS or not?

Ebay Link (http://cgi.ebay.com.au/Land-Rover-Supercharger-Turbo-Range-Discovery_W0QQitemZ150244491413QQihZ005QQcategoryZ 43807QQssPageNameZWDVWQQrdZ1QQcmdZViewItem)

[Sprint]

please tell me you're kidding

[HangOver]

I dunno they looked like plastic runbbish but 99% positive feedback, refund if not happy, I just thought I'd ask.

[JDNSW]

Yes. A simple test - it is electrically driven, you could not drive a useful supercharger from the belt running your alternator, so especially after allowing for the power lost in the alternator and the motor driving the blower, the amount of boost is almost certainly barely enough to overcome the increased restriction of putting the gadget in the intake.

As for their positive feedback - who is going to admit they were silly enough to buy one?

John

[d3funct]

I dunno they looked like plastic runbbish but 99% positive feedback, refund if not happy, I just thought I'd ask.

Unfortunately, people leave feedback as soon as they get the item - "Super fast delivery A++++" etc...

Where as feedback like "Useless product, dont waste your money" would be more helpful... but then you stand the risk of having THEM leave you bad feedback for being honest...

Feedback is useless unless you KNOW what you are buying and want to scope the sellers selling/shipping history.

[Bigbjorn]

Phineas T. Barnum is the Chairman of directors?

[RonMcGr]

better economy, more power etc etc BS or not?

Ebay Link (http://cgi.ebay.com.au/Land-Rover-Supercharger-Turbo-Range-Discovery_W0QQitemZ150244491413QQihZ005QQcategoryZ 43807QQssPageNameZWDVWQQrdZ1QQcmdZViewItem)
:D:D:D:D

From the web:
Q. Is an Electronic Supercharger a good investment?

A. o they are absolutely a fraud. The compression needed to push air into the engine (measured in cfm) is way higher than a little fan can provide. It has been proven by many car enthusiast that they do not work. Some of these superchargers only push 500 cfm where as (with out going completely technical) an engine revving at 6000 rpms with a 14:1 air to fuel mixture would require substantially more air. Not only do they not increase horsepower but they decrease since they can not keep up with the engine air coming in that it acts as a restricter.

If thats not enough proof, get someone to rev your car at 5000rpms and feel how much exhaust is being pushed out of your car, then buy your supercharge turn it on and feel how much air that can push. You will find that the car can push way more air than the supercharger alone.
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Go buy a hair dryer + turbonator, it will same u alot of $$$ & u will get the same result
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You should get it. My friend's mothers barber's dog-walker has one on his Civic and he beats Ferraris, Porsches, Lambos, Supras, TT 350z and even Type-rs at the track.

[long stroke]

Someone needs to buy one and prove it!

[Fusion]

Do you reckon you could get one to work on a small motor as in a lawnmower ...... my grass is getting long and i only have a 3.75 briggs engine :D:p:angel:.

[Redback]

I bought a Hiclone, they are heaps more expensive so they should be heaps more betterer, no point in being a cheap di*khead:p

Baz;)

[RonMcGr]

Do you reckon you could get one to work on a small motor as in a lawnmower ...... my grass is getting long and i only have a 3.75 briggs engine :D:p:angel:.

There are possibilities :D
First, fit a battery, then an alternator to charge the battery, then fit the dynamic electric supercharger. !!!

The drain on the lawn mover engine, trying to power an alternator which is trying to run an electric motor plus charging a battery..... :eek:
Better still, put the "Blower" on the side, it may help to keep the struggling motor cool :D:D:D

[Fusion]

There are possibilities :D
First, fit a battery, then an alternator to charge the battery, then fit the dynamic electric supercharger. !!!

The drain on the lawn mover engine, trying to power an alternator which is trying to run an electric motor plus charging a battery..... :eek:
Better still, put the "Blower" on the side, it may help to keep the struggling motor cool :D:D:D

well have put a lot of thought into this :D:D:D:D:p and i might just get a 12 volt converter and run one big extension lead from the house so i dont have to drain power from the mower :lol2::lol2:.

[abaddonxi]

http://www.aulro.com/afvb/general-chat/46844-forced-induction.html

https://www.aulro.com/afvb/

I've since added a snorkel adapter - sorry no pics yet:(

If I need a little more boost I just reach out the window and rev it a bit.

Cheers
Simon

[RonMcGr]

http://www.aulro.com/afvb/general-chat/46844-forced-induction.html

http://members.ozemail.com.au/%7Eabaddon@ozemail.com.au/AULRO/induction1.jpg

I've since added a snorkel adapter - sorry no pics yet:(

If I need a little more boost I just reach out the window and rev it a bit.

Cheers
Simon

ROTFLMAO :D

[spudboy]

^^ That made me laugh a LOT

[Fusion]

Oh man that is some funny stuff ... got a sore gut now :D:D:D:D.

[Landy110]

First.
I think it has a huge flaw in that it doesn't seem to have any form of speed control to match it's boost to engine revs or acceleration. It seems to just be "on". I have thought about this idea many times, electric motors can be controlled to the nth degree buy a cars onboard computer and done properly I see this as the future. A turbo restricts exhaust flow. This wouldn't.

Second.
To say that an electric motor can't produce enough air flow is bunkum. An electric motor works at approx 95% efficiency turning electrical energy into rotational energy. This is WAY ABOVE any internal combustion engine. So it would be possible to do this properly, I don't think this unit is doing it properly though, it would need a bigger motor for a start plus see first point.

Third.
It is not possible to directly compare output gas flow to input gas flow because the whole reason an engine works is that when the air/fuel mix is ignited it leads to rapid expansion of the gas forcing the piston down. Therefore the exhaust gasses are going to be flowing at a much higher rate than the inlet gasses.

Fourth.
I'm going out to buy a petrol leaf blower, I love that!!

Steve.

[spudboy]

Third.
It is not possible to directly compare output gas flow to input gas flow because the whole reason an engine works is that when the air/fuel mix is ignited it leads to rapid expansion of the gas forcing the piston down. Therefore the exhaust gasses are going to be flowing at a much higher rate than the inlet gasses.

Steve.

But doesn't the volume of the air coming in have to equal the volume of the air going out? I can see that the air might be going faster on the way out, but the engine is not adding in additional volume from the ignition process is it?

[Sleepy]

Nice one abaddonxi :Rolling::Rolling::Rolling:

Wouldn't the exhaust gas be at a higher temperature and therefore have a larger volume? (Same mass, but larger volume?)

[spudboy]

Ahh - temperature! Seem to remember that from physics in the dim dark past. Thanks.

[long stroke]

NOOOOOICE:D:lol2::arms::thumbsup::clap2::woot:

[isuzurover]

Someone needs to buy one and prove it!

If you can get the power usage figures for one then you can prove it without wasting your money - by doing a few back of the envelope calcs.

As someone mentioned, there are power losses driving the alternator, and converting kinetic energy into electrical energy. Let's forget that for a moment, and say that the device sucks 50A of juice @ 13.5V when running (doubt it would be anywhere near that high).

50A @ 13.5V = 810W = 0.81kW. However, when sizing fans of that type, you assume only 60% efficiency, so the actual usable energy the fan could give would be about 0.5kW tops. Now assuming about 10% losses (pressure drop), you would be lucky to get 0.4kW of usable energy.

And that is a BEST case scenario...

[HangOver]

So....................

Should I buy one ?

;) :D

[dobbo]

So....................

Should I buy one ?

;) :D


Go for it I say, get the one thats run off a USB adapter and ulitise it as the male equivalent of a Venus chair.

[Blknight.aus]

IT might make a noticable difference to something like a 2.25 NA petrol and maybe the diesel but if youve got a turbo or anything bigger than say 3 l it aint gunna do squat.


ITs a squirel cage fan. how much air do you get out of your dash and how much pressure do you think it can deliver?


to work out if it would give you any boost just stick an anemometer( wind speed measuring device) in the middle of your air inlet tract (make sure its in a part thats the same size as the outlet of the fan booster) then give it some full noise action.

do the same for the fan.

if the fan cant shift more air with no restriction on it than the engine can pull through it aint gunna do diddly.


Dont buy one if you dont have an old low compression low power low capacity engine (say a series IIa petrol)