Well what the general opinion on this piece of engineering wisdom

Electric Supercharger Turbo Conversion SKODA OCTAVIA on eBay Performance Tuning Parts, Car Tuning Styling, Cars, Parts Vehicles (item 220132406895, end time 29-Jul-07 20:48:44 BST)

:pants: :elefant: :moon: :eek: :D :rofl:

That sum's up my opinion on it

:iagree:

Well, unless the motor part of the supercharger has a rating of something like 20hp.

So you ain't getting one then lol

The Corsa brigade in his feedback seem relatively happy...?

But what about the molecule something or other, surely we need that bit

along with the flux capaictor

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Utter rubbish. Do they really expect a little electric fan like you take on your holidays to pull more air than a turbo (or even the induction stroke of a N/A engine?!) DFTS

I like the tagline "more air, more fuel = more power"

And its not avaialbe in france germany holland or the US i wonder why

unless the motor part of the supercharger has a rating of something like 20hp.

Good point! Law of Conservation of Energy, innit?

Hmmmm - those dyno graphs show quite peaky delivery! Wonder what car that was from?!?!?

Chris

Someone should ask him if the motor doubles as an auxilary battery charger when the turbo spools up and spins the impellor faster than the motor can go.

I know the guy that did all the development work for the ecotek valve and guess what........................................................................................................................

He dosent use one on his cars!

Quote from a Happy customer

Just want to say a big thank you to E.T.S uk as purchased the Generation 2 supercharger a few weeks ago and works like a charm could not believe the performance gain on my Honda civic 1.4i 16v(00) as if u own one u know its pretty laggy at the bottom end(laggy ....... 1.4i civic's are turbo charged also?), but with this little puppy installed (don't tell EE they are using dog's in the testing of this techno marvel)the pick up is superiorly(???????) increased

as a rough rule of thumb.... you need aproximately the volume of air inside a transit van every second to make 7psi of boost on a 2 litre petrol engine.....

:iagree: - the 20hp motor thing was an order of magnitude comment based on the power consumption of a Rootes blower.

What made me laugh is where in the ad they say that this compresses and cools the air, now unless im missing something, this is why people spend a lot of money on intercoolers for turbo and supercharged cars, because when you compress air it get hot, reducing density, reducing prformance.

Correct me if ive missed something, but that did it for me.

that's a contradiction in terms..... you are right, compressing air makes it hot

:agree: It's good to know the things have been designed by someone whose knowledge of physics ceased before A-Level!

A-Level notes on First Law of Thermodynamics, including adiabatic compression

it might well gain you power but at very low revs as it won't be able to deliver anything like enough air once your revving above about 2,000rpm

it might well gain you power but at very low revs as it won't be able to deliver anything like enough air once your revving above about 2,000rpm

:iagree: there may actually be some increase due to a slight increase in volumetric efficiency but it will soon run out of puff at higher rpm

Ive not clicked the link yet but i know you have all built it up now lol

Well I'll be getting one !!!.................................................................................NOT

I didn't read the advert; I didn't have to!

Decided to get a bit technical on this one. It's analogous to a single-stage axial compressor. The fan portion on turbofan jet engines are multi-stage axial compressors. Because it's the combination of rotors and stators, and the narrowing of the compressor casing that provides the compression, single-stage axial compressors like the ETS UK Generation 2 Electric Supercharger are apparently so inefficient as to be virtually unheard-of. But NASA have one:

According to the blurb, its compression ratio is 2.5:1. And it's the size of an office block. And uses a 7000bhp motor.

To put this into perspective, the turbo on the Fabia vRS has a peak compression ratio of 2.8:1 (so I'm told). And isn't the size of an office block. Nor is its power consumption 7000bhp.

"Ah," I hear you say, "But what about flowrates?" Again, according to the blurb, NASA's baby shifts up to 100lbs of air per second. Assuming this is at peak compression, it works out at about 36 cubic metres per second on the inlet side. But then TeflonTom's said that the average engine needs about the volume of a Transit van per second on the inlet side (i.e. about 10 cubic metres per second). So if all of that's true, then NASA's 7000bhp, office block-sized compressor shifts about four times the air of the average car engine. Or perhaps the same as a very large car engine...

So well worth the outlay, then!