That kind of boogers the elegant simplicity of a turbo. First, VVT, now an electric assist???

 

most of things you describe can be fixed
-Plastic fan blades: get metal ones
-shrappnel in engineut the blower before the filter or chicken wire after the blower
-low and high speed no good: have a switch to turn it on when you want

i believe the electric supercharger COULD work but no one wants to take the time/money to do it when you could just get NOS. plus it would look like a ricer thing or like sh it

I read the whole article on the Knight electric supercharger, supposedly the problem has been: in order to get enough boost to make a real difference, you need a huge amount of current, in order to supply that current, you need the equivilent of several alternators, the greatly increased drag from the additional alternators cancels the power boost from the supercharger... no gain....

 

On the current 12V DC car power system having an electric supercharger is pointless becuase of amperage required to move that much air.

If they ever decide to move into 24V or 42V DC systems for cars (they have been working on it as of now but when you up DC Volts the risk of arcing greatly increases so they have been working on the safety systems to go along with those increased volts) things such as these will be much easier to produce. Simple physics tells us W=A*V where W=watts A=amps and V=Volts
Say to push 8psi of air we need a 300W electric motor on a 12V car we would need 25 amps to push that air, whereas a 24V car would only need 13 amps and a 42V car would need only 7 amps of power.

One type of performance system I have been thinking of is take a turbocharged car and add an electric motor that upon a full throttle input from the driver prespools the turbo to get rid of most if not all of the turbo lag. You could kind of think about it how honda's IMA system works, a little motor ot help the bigger one out. in this case a simple 1/4-1/2 hp high speed rotation electric motor that helps the turbo get upt to speed.

You got the right idea, but I think your numbers are way off. A hair dryer is like 1600 -1800 watts. It has a heating element that uses most of that, but even if you assume the motor only uses 300 of the 1600-1800, you are still left with a tiny wimpy assed motor that could never put out 8psi.. Also remember you need both pressure and velocity, my little 'plug into the cigarette lighter' air compressor will put out 120 psi but it will only move something like .005 cfm so even at idle it won't make any pressure. If you get a blower motor that will put out good air pressure, it has to be able to build that pressure at the flow rate of our cars at w.o.t. at redline in order to be truely effective. I think to get 8 psi at the appropriate flow rate you're going to be looking at something in the range of 4500 watts, try that calculation for current at 12V!!! How many 100 amp alternators would it take just to run that blower? Where's the gain?

As far as the electric motor to spool the turbo, you're looking at the same trouble, the turbo's got a lot of mass and it builds wind resistance pretty quick. in order for your little motor to help, it has to not only be able to spin quickly, but it has to have a lot of power to accelerate the mass of the turbo quickly. There's a lot of small motors that will be able to spin fast, but they don't have enough torqe to spin the turbo up even as fast as the car's exhaust... To eliminate turbo lag, I'd think about nitrous that only activates under the condition of full throttle and no boost. It would give you power boost to get you to the point of turbo coming on line and then shut down as the turbo kicks in...I was even thinking of having several really small jets injecting the nitrous so the computer that controls the nitrous could cut an injector at each level of boost so you wouldn't even feel the transition between nitrous and turbo...

 

i saw alot of those electric superchargers around christmas.. you see those giant blow up snow men and other things? they have those "electric superchargers" filling them with air lol...

I saw a article somewhere about how some techs tried different new devices on a dyno and the electric supercharger actually decreased power. there were some other things that decreased power also like the "tornado"

I saw a thing online about how a guy used several car batteries and a starter to spool the turbo and made 8psi of boost that worked just as well as a real turbo.. he said its not very practicle though since you can only do a few runs then you have to charge the batteries again. A starter would definetley have the power to push a turbo, i'd imagine without the restriction of turning your hole engine over by its self that thing can get pretty fast and take alot more of a beating. plus it wouldnt restrict your exhaust at all but anyway.. its not practicle

DONT BUY AN ELECTRIC SUPERCHARGER!!! seriously, go email all those kids on ebay who said they got power and ask them if they had a high flow intake before hand, just about everyone i saw on ebay comes with a filter too.. If i said dog crap on your intake would make it faster and put it on a high flow filter and gave it to you, and you were going from stock then you might believe it.

 

Just a gimmick to get ppl to waste their money .. go buy a tornado lol! another worthless idea, remember people, it takes power to make power.

 

cigarettecancerman: turbo engines do need regulation... this is what a wastegate is. all turbo engines SHOULD have a wastegate and if you dont you will mostlikely blow up your engine. what a wastegate is is a bleed valve on the exhuast manifold that opens via spring under a specified amount of boost. a legend turbo might run say 8psi boost... the spring in the wastegate would be an 8psi spring. 8.1 psi would open the spring and vent pressure maintaining a max 8psi.
what a turbo actually is: a vacuum powered vacuum reducer. vacuum = negative pressure = slow. boost = positive pressure = fast.
what a supercharger is: a belt driven vacuum reducer.
superchargers and turbochargers slow your engine down at low speeds. this is called turbo lag. they add a whole bunch of added restriction on either your exhaust or your belt system. but the good thing is that once your engine gets up to speed momentum kicks in and so does the power!
an na(naturally aspirated)2.7l legend would be faster than a turbo2.7l legend off the line, but after the 2.7l turbo spools up it would smoke the na2.7.
why electric superchargers dont make sense: YOU KNOW HOW MANY AMPS IT WOULD TAKE TO PUSH 8PSI BOOST INTO AN ENGINE?
better install a second alternator! cuz where else is all of this added electricity demand coming from?
then you are back at square one... a belt driven supercharger. just in two parts...
this really doesnt make sense guys...
i could see using one for a drag race... but that is pretty homersexual if you ask me...
a lot of work for squat in gains...
you are better off buying one of those tornado intake devices
and btw thats a joke... dont ever buy one of those pos.
maytag

It can be done. Have you been following how brushless motors are changing the way things have been done? They draw less current and provide more power than ever thought possible. 8 Psi is no where near where you would want to go with an electric supercharger. It would require too much current but in time it will be possible. More like 3-5 Psi is doable now and hopefully I will get things going here soon. Like I said I am working on it and you all will see how easy it is and how cheap it will be to make. It will take up very little space and use 12-24 volts to run. Brushless motors are going to make it possible and it will work better than Knights idea.

Also most starters on a car draw at least 250-500 Amps so don't say that a 12 volt system isn't capable of producing what you need. Just wait and see.......

 

how long does a starter draw 250-500 amps for?
i just think its not very practical
8 psi would blow up a legend motor in no time
but things dont get fun till about 12 psi
you plan on using a wastegate?
maytag

 

how long does a starter draw 250-500 amps for?
i just think its not very practical
8 psi would blow up a legend motor in no time
but things dont get fun till about 12 psi
you plan on using a wastegate?
maytag

You missed the point. I was just saying it can be done and the newer motors create more power with less power input. Less amps but more power. I will be working with a system that will hopefully make 3-5 PSI. The motor will be able to make the power for longer than just a few seconds and when it does get too hot it will shut down and the system will be bypassed. It will work and when it does I will sell you one It will take me some time and I need to make sure I am not stepping on any patents. Brushless motors are really awesome now days and the power they make is insane. I will just have to prove it to you guys when I get it working right.

 

I bet you i can hook a fish tank air pump up to a vac line and get more boost than a practical electric supercharger. anything with noticable improvement is going to require alot of power..... the guy who did use a starter only got a couple races out of it with several extra batteries in the trunk.

correct me if i'm wrong but i believe 1 amp is about about equal to about 1,000watts

 

You got the right idea, but I think your numbers are way off. A hair dryer is like 1600 -1800 watts. It has a heating element that uses most of that, but even if you assume the motor only uses 300 of the 1600-1800, you are still left with a tiny wimpy assed motor that could never put out 8psi.. Also remember you need both pressure and velocity, my little 'plug into the cigarette lighter' air compressor will put out 120 psi but it will only move something like .005 cfm so even at idle it won't make any pressure. If you get a blower motor that will put out good air pressure, it has to be able to build that pressure at the flow rate of our cars at w.o.t. at redline in order to be truely effective. I think to get 8 psi at the appropriate flow rate you're going to be looking at something in the range of 4500 watts, try that calculation for current at 12V!!! How many 100 amp alternators would it take just to run that blower? Where's the gain?

As far as the electric motor to spool the turbo, you're looking at the same trouble, the turbo's got a lot of mass and it builds wind resistance pretty quick. in order for your little motor to help, it has to not only be able to spin quickly, but it has to have a lot of power to accelerate the mass of the turbo quickly. There's a lot of small motors that will be able to spin fast, but they don't have enough torqe to spin the turbo up even as fast as the car's exhaust... To eliminate turbo lag, I'd think about nitrous that only activates under the condition of full throttle and no boost. It would give you power boost to get you to the point of turbo coming on line and then shut down as the turbo kicks in...I was even thinking of having several really small jets injecting the nitrous so the computer that controls the nitrous could cut an injector at each level of boost so you wouldn't even feel the transition between nitrous and turbo...[/QUOThe numbers I was posting were just for demonstration. I know for a fact that 300W could never move 8psi of air, I was just demonstrating simple physics. As for the electric boosted turbo, the motor would not have to move the whole mass of the turbocharger. The airflow in the exhaust would do most of the work. Take this principle like the honda IMA system in the insight. A 15hp electric motor to supliment a 67 hp gas one. Well in this case all we are trying to do is speed up the rate at which the turbo spools. It wouldnt take that much power to do really because the turbo can do it fine on its own just an assist would help it do so faster. Also if initial current draw was high the system could always have a capacitor system to help that inital draw since when typical electric motors are at low speed high torque they use huge amounts of wattage compared to when they are at high speed low torque situations.

 

The numbers I was posting were just for demonstration. I know for a fact that 300W could never move 8psi of air, I was just demonstrating simple physics. As for the electric boosted turbo, the motor would not have to move the whole mass of the turbocharger. The airflow in the exhaust would do most of the work. Take this principle like the honda IMA system in the insight. A 15hp electric motor to supliment a 67 hp gas one. Well in this case all we are trying to do is speed up the rate at which the turbo spools. It wouldnt take that much power to do really because the turbo can do it fine on its own just an assist would help it do so faster. Also if initial current draw was high the system could always have a capacitor system to help that inital draw since when typical electric motors are at low speed high torque they use huge amounts of wattage compared to when they are at high speed low torque situations.

the electric motor on the turbo could theareticaly work. but u would run into issues of over heating motors because the turbo gets HOT and i bet someone either has a paten on this or has tried

 

you can use a washing machine motor and when your driving down the road people are like "! is that a f'ing washing machine sticking out their hood????" then you can race while washing a load of clothes at the same time! you can have clean clothes to wear while your stuck on the side of the road with a dead battery and fried alternator.

you can also put one of those pocket fans that sprays mist in the intake, you might want to decrease your compression ratio before hand to handle that kind of boost and water injection.

 

^ i had to quote that...tooo funny LOL

 

i want to know more about this set up...hehe

i love my acura legend... dont take this the wrong way... but if you want lots of turbo power on a tight budget? pick up an 1988 audi 90 quattro for $2000 or less... buy an audi 5000 10v turbo motor for $500 then maybe $1000 worth of extras... its an easy conversion and there are tons of specialized parts etc.
as soon as im rich... or better off im going to do a second conversion...
my first was a success but died eventually...
very satisfying project...
not to diss my legend...
but turbo awd in a car slightly nicer than the legend...
but the legend handles nicer... after all its a tiny coupe
dont get my wrong... ill probably own a legend forever
maytag

ps my audi friends are disgusted by me owning a jap car...
but i respond "lets race"

 

from what ive heard...the quattro AWD system is garbage and breaks down under stress. if you really want AWD and a Turbo, buy an Evo or a WRX...way faster than either a legend or an audi.

 

you misunderstood what I said. I was referring to NOS not superchargers. The electric one I was referring to works like nitrous for 15 second burst.

Yea but dont you usually use horse power for those quick little busts of power? Like jumping off the line at a red light or at a drag strip. Noone uses their nitrous at every light just driving around. You only need it when some little punk in his stock civic ex thinks he is a badass because he got subs and hes listening to the game way too loud.

 

You only need it when some little punk in his stock civic ex thinks he is a badass because he got subs and hes listening to the game way too loud.

wouldn't that make you a little punk in a legend thinking your a bad ass because you have a little a pump "pppppooooooo" to push air in your "VTEC" hahaha U SUCK

 

ill listen to the game really loud and put subs in anything with weels, i just like music. a legend will take a stock civic any day.

 

has anyone bought this electric charger yet? If it is compared to NOS will the results be the same as NOS as in messin up your engine or should I say shortining your engines lifespan? Is there any modifications needed such as in installing a turbo? Anyone?? I dont think its a bad idea if its like having ifinite NOS. Only question is will it mess up your regular gas mileage as in sucking more gas for the power?

 

anything that adds power to your engine will decrease gas mile and life i.e. a turbo

 

I thought so..

 

Decrease gas mileage? You bet. Decrease engine life? Maybe so, maybe no.

 

ok your little shit box ricer "performance" upgrades wont but anything meaningful WILL like nos and forced induction

 

88 acro is making blanket statements that arent supported by history. For example, my brother borrowed my Dakota in exchange for his WRX STi. That little jewel is turboed like nobody's business and Subaru expects as long a life from it as they do their non-turbo engines. I used to own a Dodge Shelby Charger Turbo and it was expected to last as long as normally-aspirated 2.2s, that is, the 70,000 miles required by the EPA.

I would agree that NOS and turbos TEND to shorten engine life since it's very easy to overboost and hurt your engine, and people who tend to buy turbos or boost engines tend to be lead-foots. However, one can't say turbos and NOS always shorten engine life.

 

However, one can't say turbos and NOS always shorten engine life.

I just did! And your taking things completely out of context. The reason turbos and nos wear on engines heavier is because of TOO much stress on the internal components. For example lets take things to extremes A dragster has to be rebuilt after every run BECAUSE THEY ARE BEING PUT UNDER SOOOOOO MUCH STRESS and hondas they practicley never have to be rebuilt if left stock and maintained properly etc because they have practicly NO STRESS ON THEM

So if im still confusing you SluttyCoxfest or watever your name is; if you turbo or add Nos to a stock engine it will significatly reduce the life of your engine

there is said!