| Author | Topic |
|---|
Registered:
June 2004
|
|
anybody used an 'electric' supercharger?
|
Mon, 02 August 2004 08:48
|
 |
|
do they work very well? do they work at a constant speed or does it vary through the rpm through some kind of sensor or what??
|
|
|
Location:
Rosanna, Melb
Registered:
June 2002
|
|
Re: anybody used an 'electric' supercharger?
|
Tue, 03 August 2004 13:05
|
|
I personally think any electric super/turbocharger is total crap and wouldn't work.
This is based on the size of the things. The maths isn't too hard... but I still have never done it. Work out the mass flow rate of air into the engine and then the energy needed to compress each kg of air to (lets say) 7psi above atmospheric then multiply them together. This is the power the electric charger must supply, and it is a big number.
I've heard unsubstantiated rumors that it is tens of kilowatts.
Then look at the pissy little motors powering the things off tiny 12V wires and see that there is no way that device can supply the needed power.
Therefore they are total rubbish.
Hen
I will probably get around to doing the maths one day when I am really bored.
|
|
|
Location:
Newcastle NSW
Registered:
June 2002
|
|
Re: anybody used an 'electric' supercharger?
|
Wed, 04 August 2004 00:46
|
|
|
if your talking about the roots type electric blower that someone posted a link not so long ago, im sure it would work very well asuming you have enuf room for all the extra batteries and support systems for it. if i read correctly the designer was working on a boost controller for it.
|
|
|
Location:
Brisbane
Registered:
May 2002
|
|
Re: anybody used an 'electric' supercharger?
|
Wed, 04 August 2004 00:56
|
|
Yep, the proper (read: expensive) electric superchargers work OK, but keep in mind they're bulky, heavy, are only capable of relatively low boost, and can only be used in short bursts due to their massive power requirements. If you're smart about it you can install a real supercharger for much less than the cost of an electric blower kit, so frankly I can't see the point.
|
|
|
