Saturday, March 15, 2008 - 08:29 pm, by: Ben Kelly(Ace)
yeah well..can someone explain to me exactly why electric superchargers etc don't work? ive had exactly the same idea for a while...been testing vacuum cleaners on bowling balls for ages....theory seems all good
Sunday, March 16, 2008 - 08:44 am, by: David Vaughan(Davidv)
There is no reason at all why a suitably specified electrically-driven supercharger will not work to provide air-charging. The questions are how well and how efficiently? You need a decently sized electric motor to pump sufficient air and that energy is more easily and far more efficiently taken from the engine drive pulley (a normal supercharger) or from the hot exhaust gasses (normal turbocharger). An electric charger will have to convert mechanical energy through the alternator into electricity to drive the intake motor. Effectively, you are asking your alternator to be the supercharger driver plus attendant conversion losses in heat.
This is much the same as people imagining that electric fans will somehow prove more efficient than the stock hydraulic set-up on the V8 Soarer. It is a "free energy" syndrome.
Plastic "turbos" like the one in the video though, will never provide anything more than a cooling breeze better pointed at the driver anyway. If you found enough drive power to make one useful then it is my guess that you would have long exceeded its heat and flex limits.
Sunday, March 16, 2008 - 09:26 am, by: Miles Baker(Milesb)
Decent sized blower will use at least 20hp. To drive that with an electric motor at 12V, you'll need 1250 amps. That would also then cause you to ask why you are converting power from the motor into electricity with your alternator(s) and then back to the exact same kind of power with an electric motor.
Monday, March 17, 2008 - 06:46 pm, by: Neil Griffiths(Aussiesc)
But, A petrol powered Lawn Vacc / Blower will give free boost hahahahahah Just work out were to install it and how to run the throttle, your home and hosed
Another * free * option would be to inflate a large tyre tube inside the boot, hooked to the intake this would give a boost shot like NOS..hahahahah