wankel_dreams

ok , when i saw this eBay auction



supercharger kit acura honda civic prelude



going for $179.00 that was the final straw. i decided to do a little internet research.



I found this article:



Looking at the Twin Turbo Zet electronic supercharger.



my favorite part of the article and i quote



"But let's say that instead of using a belt-drive from the engine, we power the supercharger by using a 12 volt electric motor powered from the car battery. For an electric motor power of 14,500 watts, we'd need a current flow of about 1000 amps (14,500 watts divided by 13.8 volts = 1050 amps). So, to supply the current to drive an electric supercharger having the same airflow output as the most energy-efficient type currently available, it would take 1000 amps. To generate this much electrical power would require at least 8 heavy-duty alternators bolted to the engine. Furthermore, to handle this current, the wires connecting the battery to the supercharger would have to be enormously thick - perhaps brass or copper bars 10mm square would be needed."



the cfm of the fan in that auction is almost identical to the theoretical supercharger in the article.



i always knew that they were cheap junk, but its good to have facts to back it up.



i think i should create a hotmail address and email that article to all the dumb ricers buying that crap....AFTER THE AUCTION HAS ENDED BAAAAAAAAHAHAHAHA

wankel_dreams

and i bet i know where they are getting their fans from.........tearing apart $20.00 vacuums that plug into cigarette lighter



12 Volt, Roller Brush Turbo Vac

isamu

Unfortunately the seller neglected to inform the buyers that the photo was "actual" size.

venomous

I've seen an electric supercharger (one that ACTUALLY works), on a Toyota MR2 it was driven by a generator attached to a turbo exhaust compressor wheel. The result was was instant boost up to 18psi and 350 cfm in short duration, and about 14psi continuous. Generated charge was stored in a hypercapacitor or a deep cycle nicad automotive battery. Full boost was triggered by a switch on the accelerator pedal and there was different boost levels for each gear ratio.

THE CAR HAD NO CONVENTIONAL ALTERNATOR - thats right all power came from the exhaust generator. It could generate 20kw at peak.



However the R&D and installation cost the guy $20,000 and will not be available as a kit... hmm



You can get 2000 watt electric superchargers that work from your existing battery, they only get you about 10-30hp for 60 seconds.

wankel_dreams

so using a simple porportion ( i know that its not 100% accurate cause efficiency decreases as boost increases) if it takes approx 14,500 watts to produce 265 cfm, then 2000 watts would be around +/- 40 cfm for argument sake. automobile engines flow more than that naturally aspirated. I have no doubt that you'd feel a "boost" when you activated the device, but mainly because when activated it is less of an intake restriction.