Electric turbo
 

Saw this on ebay and had to laugh. Just to be sure tho this really wouldn't increase power much would it. Had to laugh the pics with the intricate pipe work and one of these attached to the end. :D

http://cgi.ebay.com.au/Turbo-Superch...item4ceef8e18d

to be perfectly honest in theory that piece of sht does work. however i would assime that the chinese ebay one is made so poorly that it does not actually compress any air lol. i mean if it was made properly, have a electric motor powerign a properly built supercharger is a great idea, as the energy losses would come from a greater strain on the alternator rather than another belt/pulley for the SC itself.. but the ebay ones has allways made me laugh.

just get a high powered hair dryer and strap it in and put it on full air & cool air too :p hahahha

You'd probably get more power from the hair dryer

3 Amps Current Draw lol, hairdryer would be better

This would probably provide more restriction to airflow at high rpm so less power.

I was reading about electric superchargers, not many work very well, basically they don't have enough of an electrical source to run fast enough to deliver sufficient boost at higher rpm. Alternators can't supply enough to keep the battery charged and run boost. The most successful ones are used like nos. Push the button instant boost for 2-3 min, then 10-15min to recharge the capacitors.

They will probably become more common as the tech improves, they're pretty specialized for now

what i was on about is to get a bigger alternator, but i dont think even that would make enoguh power to supply the amperage. i guess u would need to draw atleast 100 amps to create good flow for all the rpm range..
i dont think it would ever get improved dave.. cus there is no feasable reason to improve on the combustion engines. i mean honestly there is what 40-50 years of oil left.. and electric engines are so much more efficient :D

Oil burners forever :)

I think I read that to make 6/8psi boost it needs to draw 140amps. To people who don't know car electronics, that would kill the car in minutes. Hence the charge cycle. Still be fun to have an instant boost button.

If it can blow more cfm than your engine can pump, it will make more power [and run lean...]. But most ECUs aren't mapped for positive pressure.
Some Toyota ECUs will accommodate enough boost for a standard supercharger however. Bust these Chinese bilge pumps are crap.

Gav.

yeah but lets say my 1.8L at 2000 rpm thats 1800L per minute thats 30L/s thats around 65 CFM and thats not that unacheivable but at 5000rpm thats around 160cfm and i dont c that thing doing that haha
what i found the funnyest from that add but is the "zero friction bearings" i wonder i they are made from unobtanium :D

Yeah, but there is an American electric charger that makes something like 300cfm.
I don't know what our engines pump at full song, but 300cfm sounds like a lot. :p

EDIT: It's 800cfm now. :o http://www.electricsupercharger.com/products-eram.html

From researching online this is the only decent electric supercharger.
http://image.turbomagazine.com/f/885...percharger.jpg
That one uses 3 3kw starter motors for a boost but can't be used continously as they overheat quickly. Here is a pic of the setup:
http://image.turbomagazine.com/f/857...knight02_z.jpg

eew thats a axial flow pump :eek: makes me cringe haha (gavs one)
where did u get that pic from jarrod? looks like a positive displacement (reciprical) and its fuking HUGE

The one Jarrod posted is in a Nissan Ultima or something, and the guy has loaded his boot up with batteries to run it.
He makes some really impressive gains on the drag strip despite the huge amount of extra weight in the car.

Here is an article about the e-ram: http://www.electricsupercharger.com/...no-article.pdf

Yeah it is in a Nissan Altima. Here is the linky:
http://www.turbomagazine.com/tech/04...ger/index.html
The article is a bit old now but is still very impressive.

holy crap those blades seem to be running on very tight tolerances :D
me likey
i sitll dont like axial flow pumps haha :p
but even that 1psi is enough to counter the force required to draw the air in to the pistons (by the piston itself), thats probably where the gains are coming from mostly as well. thats how a millers cycle engine works as well, but millers cycle changes the intake timing as well so that there is no air being drawn from TDC to about 20 or so degrees untill the crank is on a power producing angle and can drive the piston faster. this loss in air is subbed buy the sc and you end up with a increase in efficiency (and the charger sticks more air in than atmospherically posible as well :)) im gonna stop babbling now im sure noone cares.

The interesting thing with the e-Ram is that most seem to use it with 3" intake piping, but 2.5" piping might be better to keep the air velocity or pressure up. I've looked at a few more dyno results now, and people are seeing 5-6% gains over a SRI or CAI. So it basically gives double the gains over stock airbox compared to SRI or CAI, at slightly more cost. I haven't seen any super e-Ram dynos yet.

ill take my slower car and use the money on fuel haha. but cool idea. we ideally need the car's working voltage to be something in the vicinity of 50VDC. that way Amps are reduced = less losses and as he said in the article faster recharges of the batteries. looking into a battery car (and started saving for when i get off my p's. thinking a BG or an old suzi swift with direct drive... we shall see how far that gets.

speaking of electronic turbo APPARENTLY a rumor has it that the 2011 RX7 will come with a 1.6L rotary and a gas/electric turbo

Gas/electric turbo? Can you elaborate more?