nib1980
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| posted on 1/11/06 at 09:29 PM |
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electric turbo supercharger, laugh a minute..
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
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theconrodkid
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| posted on 1/11/06 at 09:34 PM |
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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
who cares who wins
pass the pork pies
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Jon Ison
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| posted on 1/11/06 at 09:35 PM |
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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.
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JoelP
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| posted on 1/11/06 at 09:36 PM |
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look at the picture!
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dave r
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| posted on 1/11/06 at 09:59 PM |
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Peteff
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| posted on 2/11/06 at 12:27 AM |
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The picture looks disturbingly like a bloke I used to work with who died earlier this year 
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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Danozeman
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| posted on 2/11/06 at 06:36 AM |
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That bloke loos like a right c***.
Funny though, who's gonna stump up 99p to see what it is?
Dan
Built the purple peril!! Let the modifications begin!!
http://www.eastangliankitcars.co.uk
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02GF74
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| posted on 2/11/06 at 08:03 AM |
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quote:
i will also provide a link to a web page where someone has done this conversion on a rover v8
Waht complte 80110ck5!! Someone should report him to ebay; even though he is aksing for 99p, he is still ripping people off.
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oliwb
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| posted on 2/11/06 at 08:19 AM |
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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.
If your not living life on the edge you're taking up too much room!
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smart51
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| posted on 2/11/06 at 08:22 AM |
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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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jono_misfit
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| posted on 2/11/06 at 10:07 AM |
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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]
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smart51
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| posted on 2/11/06 at 11:06 AM |
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I guess an electric system could be used to give a bit of intermittant overboost. Perhaps 10 seconds worth for when overtaking
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Kissy
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| posted on 2/11/06 at 11:09 AM |
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Look at the feedback - plenty of 'happy' punters.
Per the phrase "There's one born every minute..."
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Fred W B
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| posted on 2/11/06 at 11:14 AM |
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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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NS Dev
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| posted on 2/11/06 at 11:27 AM |
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quote:
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.
I presume you are having a laugh???
The idea has nothing like the same merit as water pumps etc, as these need very little power!!!!
In a "typical" car installation, the turbo will be extracting around 20hp from the exhaust gas in order to feed the inlet charge.
This equates to around 15,000 watts........ which using a 12v electrical system as found on most cars, will require around 1200amps.......
finding a big enough motor would be tricky, but I think it has been done using 3 starter motors and a big geartrain (mentioned on here before)
Then find me a 1200 amp alternator.........
think the turbo would indeed be much easier!!! Most of those electric fans will actually rob power as the engine sucks the fan round faster than the
motor will drive, in fact they might actually act as a windmill dynamo and help charge the battery I suppose!
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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jono_misfit
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| posted on 2/11/06 at 02:18 PM |
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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]
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