Supercharging-Have to read this!

[93-525i]

This is one of the most interesting artivles I have seen yet :)

Supercharger (http://www.turbomagazine.com/tech/0406tur_knight/)

[BigKriss]

another hair dryer thingy...

[93-525i]

another hair dryer thingy...
Not quite, it uses a real eaton supercharger and gets 5lbs of boost, verified on several vehicles on the dyno by the publisher of that mag.

[Qube]

Not bad. 5psi plus better injectors. Of course this all depends on the $$$

[BigKriss]

his website doesn't look credible to me.

http://www.boosthead.com/home.php

Let's see what is avaliable for our cars. Select BMW, then any 2.6L to 3.8L. wow

"Place a deposit now and lock in that promotional rate!". wow. I want one now :)

I love the pics and the dyno sheets also.

[emw525E34]

another hair dryer thingy...

Yeah , a very LOUD one too. I read that the 30+ amps of current its pulling really makes a racket in the engine. I don't want a car where the hood noise is greater than the exhaust noise!.
Don't think is efficient either.

The guy should engineer electric motor drive to the front wheels rather than augmenting the gasoline motor. Yeah, a sort of E 34 iX_eectric!.

[bahnstormer]

here is what irks me

"no parasitic loss"

but to power the ESC doesnt the alternator have to constantly charge teh batteries
and such? thus the alternator is required to work more...and that is belt driven so
more hp loss...tho not as much as adding a seperate pulley for a s/c

[kyleN20]

correct me please, but dosent a alt. run constantly anyways? dose it have soem kind of electromag clutch?

[pundit]

correct me please, but dosent a alt. run constantly anyways? dose it have soem kind of electromag clutch?
Yes but the more current you draw from the electrical system, the greater the alternator has to work, and the more load it puts on the engine.
Nothing comes for free... unless of course you are the first person on the planet to have invented a totally lossless perpetual motion energy generator! ;)

[bahnstormer]

unless of course you are the first person on the planet to have invented a totally lossless perpetual motion energy generator! ;)


i have 2 of those just lying around want one? ;) :p

[brodee]

Yes but the more current you draw from the electrical system, the greater the alternator has to work, and the more load it puts on the engine.
Nothing comes for free... unless of course you are the first person on the planet to have invented a totally lossless perpetual motion energy generator! ;)

Explain this to me please because the way I see it the alternator is running all the time and generating the same output all the time. If it's a 135amp alternator then it's always putting out 135amp (or close). It doesn't turn harder when it's trying to create more amperage and it's not clutch driven like an AC comnpressor. So wouldn't the alternator draw the same amount of power from the engine all the time??

[kyleN20]

thanke you, thats exactly what i was thinking

[kyleN20]

personaly, this supercharger setup seem to be a good idea, how many RPM is that think turning at? and where do you get an electric motor to spin with the same rpm a turbo needs, i was thinking like the motor out of a electric trimmer
i wanna do this, it seems to be a good idea, kinda

[TheDuke]

Have anyone ever seen this thing actually working? I can think only of Diesel engines being supercharged this way. How about the weight, the idea seems great, and cooling? If it can create 5psis without major modifications to the engine seems like a really good idea.

[kyleN20]

well, and i dont know this for sure, but iv put some tought into it, you shouldent need air cooling if you put the intake/filter in a area where lots of fresh air passes through, like removing a highbeam haha, the only reason you need air cooling on a turbo, it bacause you run right off the manifold, so there is a ton of heat right in that area, im not sure why you need cooling on a supercharger, probally because it has to be close to the engine, and with an electric unit, you can place it away from the engine i assume.

[632 Regal]

Your alternator will probably NEVER have to pump out 135 amps in its lifetime. The reason for a high output alternator is so that it can keep up with the drain the electrical system uses and to keep the battery charged at all times. Your aternator probably rarley sees 20 amps after starting the car and rolling the windows down simultaniously.


Explain this to me please because the way I see it the alternator is running all the time and generating the same output all the time. If it's a 135amp alternator then it's always putting out 135amp (or close). It doesn't turn harder when it's trying to create more amperage and it's not clutch driven like an AC comnpressor. So wouldn't the alternator draw the same amount of power from the engine all the time??

[pundit]

Your alternator will probably NEVER have to pump out 135 amps in its lifetime. The reason for a high output alternator is so that it can keep up with the drain the electrical system uses and to keep the battery charged at all times. Your aternator probably rarley sees 20 amps after starting the car and rolling the windows down simultaniously.
Beat me to it! ;)
As Regal said. The current output of an alternator is dependant on the electrical systems requirements up to the maximum capacity of the alternator.
On many vehicles if you turn on all the lights (inc fog, and high beams), rear demister and anything else that requires a fair amount of current while the engine is idling, it is often possible to notice a slight drop in revs as the alternator loads up the engine.

[onewhippedpuppy]

Somebody developed a turbo kit that mounts underneath the car, thanks to the location it doesn't need an intercooler. It's designed as a retro fit for vehicles that don't have any room under the hood. Several shows/ magazines tested it and found it to work as any other turbo would, but with a bit more lag due to the piping.

[stx133]

400 SEC / DAY, LASTS 24 YEARS.... Who drives for 6 and a bit minuites a day? is it on a switch?? do you only use it when u want it then turn it off. what sort of valving is on the intake system if this is the case.
sounds like a lot of promises. i wouldnt do it to mine even though i am in favour of supercharging in general.

[stx133]

if they think a turbo dosent need an intercooler if it is located low, they dont give me any confidence in their tech article at all. an intercooler removes heat. placement of the turbo will not change the laws of physics.

[onewhippedpuppy]

With the system mounted under the vehicle, it's directly in the airflow as the car moves, as well as away from the heat of the engine. I think the long intake pipe also serves to help dissipate some heat. I haven't seen any real convincing tests though, so I don't know how well it works.