Saw this on ebay and laughed out loud, anyone wanna get one for a giggle. if it was this simple I'm sure OEM's would have it by now

http://cgi.ebay.co.uk/Instructions-on-building-an-electric-turbo-supercharger_W0QQitemZ140048214103QQihZ004QQcategoryZ100921QQrdZ1QQcmdZViewItem?hash= item140048214103

or even http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=140048214305&ssPageName=MERC_VIC_ReBay_Pr4_PcY_BIN_IT&refitem=140044691408&itemco unt=4&refwidgetloc=closed_view_item&usedrule1=CategoryProximity&refwidgettype=cross_promot_widget

mmmmmmm, 2psi boost up too 40bhp..............

I guess if its 27litres 2psi boost might do it but you would need a motor the size of a bus too fill 27litres at 2psi ?

ah well.

look at the picture!

The picture looks disturbingly like a bloke I used to work with who died earlier this year

That bloke loos like a right c***.

Funny though, who's gonna stump up 99p to see what it is?

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i will also provide a link to a web page where someone has done this conversion on a rover v8

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I've got that...will e-mail on to ppl if their interested...only bought it cos it cam free with the how to keep your license leaflet.....which was actually quite a good read....not the aupercharger crap though.....Oli.

Why is it a rip off? He is selling plans to something that may well work as described. People laugh at the idea of electric supercharging but the idea has as much merit as electric water / oil pumps and electric fans.

Here's my plan for an electric supercharger. take one turbo. Hack off the exhaust manifold bit. Get a big electric motor and gearbox and fit the gearbox backwards so that it gears up the speed. Make a speed controler that runs off the engine RPM signal and TPS signal. have a nice map in EEPROM that you can use to control the speed of the supercharger. It would work. It would compress the air as well as the original turbo did. It would have much less lag, so more like a supercharger and you could turn it off at low throttle inputs to save power. It might be easier just to fit the original turbo though.

I deleted my comment as im not absolutue sure, could be a "real" electric drive for a sueprcharger.....

The idea of using a motor to drive a real turbo compressor works, ive seen a formula SAE / student car with one on. It takes a lot of energy from a battery to run it, as such it only works for a short while. If you think about how much energy a supercharger draws from a engine at full compression then look at the equivilent sive of 12v motor...

Real Turbochargers are good as they utilise the heated gas flow to recover energy lost in the exhaust stream and convert it back into a usefull medium. I.e compression of the inlet flow.

[Edited on 2/11/06 by jono_misfit]

I guess an electric system could be used to give a bit of intermittant overboost. Perhaps 10 seconds worth for when overtaking

Look at the feedback - plenty of 'happy' punters.

Per the phrase "There's one born every minute..."

One of the SA "tuner"mags did an experiment on a dyno with a petrol powered leafblower, that they strapped on and ducted into the intake of a 1600cc. As I recall they measured a very slight increase in power. How does the airflow of that little thing compare to a leafblower?

Cheers

Fred W B

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Originally posted by smart51
Why is it a rip off? He is selling plans to something that may well work as described. People laugh at the idea of electric supercharging but the idea has as much merit as electric water / oil pumps and electric fans.

Here's my plan for an electric supercharger. take one turbo. Hack off the exhaust manifold bit. Get a big electric motor and gearbox and fit the gearbox backwards so that it gears up the speed. Make a speed controler that runs off the engine RPM signal and TPS signal. have a nice map in EEPROM that you can use to control the speed of the supercharger. It would work. It would compress the air as well as the original turbo did. It would have much less lag, so more like a supercharger and you could turn it off at low throttle inputs to save power. It might be easier just to fit the original turbo though.

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i doubnt the leaf blower experiment would make much different. Its more akin to using a slight ram air effect that replicating the effect of a turbocharger.

Id imagine with the leaf blower they operate more akin to a high powered fan than a turbo compressor.

If you used a battery with a high charge density, an electric compressor will work better. Although the battery wont last long

[Edited on 2/11/06 by jono_misfit]