simonb 0 Posted March 28, 2006 Me and the old man got talking down the pub a while ago about the various pros and cons regarding supercharging. We got on to the subject of using a normal air compressor as a charger, i.e. in the boot and using either a 5th injector or fooling the ECU into injecting more fuel via a resistor when boosting. I searched the web for clues but didn't find much apart from a guy that used a similar kind of system for an anti-lag device on a turbo. Does anybody have any thoughts?. - Just curious as to wheather or not this could be done as it would be a damn sight cheaper than a super-charger conversion. Share this post Link to post Share on other sites
tagy 1 Posted March 28, 2006 sounds just like NOS, except you have a compressor to keep your bottle topped up? Share this post Link to post Share on other sites
Ryan 99 Posted March 28, 2006 You'd need a HUGE tank and/or compressor as an engine comsumes a massive amount of air when running. Share this post Link to post Share on other sites
M3Evo 0 Posted March 29, 2006 (edited) Hmmm. Assuming that the engine had 100% volumetric efficiency and was a 1.9, it'd consume the following: 1.9 litres/2 (takes 2 revs to ingest the engine capacity) = 0.95 litres 0.95*1000rpm (at idle) = 950litres of air / minute. Very much doubt that a compressor can deliver 950litres / min, and that's only for idle! Edited March 29, 2006 by M3Evo Share this post Link to post Share on other sites
jack biscuit 0 Posted March 29, 2006 Once again the electric supercharging question is roundly and soundly defeated, with the everlaasting appeal and shine that you only get with real science! Hurrah! Back to gas reclamation and mechanical drive for us then... ooh same thing for a hundred years. Share this post Link to post Share on other sites
Rippthrough 98 Posted March 29, 2006 (edited) Once again the electric supercharging question is roundly and soundly defeated, with the everlaasting appeal and shine that you only get with real science! Hurrah! Back to gas reclamation and mechanical drive for us then... ooh same thing for a hundred years. Electric supercharging is easily possible. The only problem is that of package size, a supercharger installation using electrical boosting rather than engine driven is results in a package around twice the size. It's not the actual 'charger that's the problem, it's the necessary uprating to the car's electric system to cope with the load. The alternator needs to put out some serious ampage, and you end up with an electrical cable that resembles something you usually string from pylons. Of course, if you can change the cars ancillary systems to run at a higher voltage things become much easier. Edited March 29, 2006 by Rippthrough Share this post Link to post Share on other sites
jack biscuit 0 Posted March 29, 2006 Electric supercharging is easily possible. The only problem is that of package size, a supercharger installation using electrical boosting rather than engine driven is results in a package around twice the size. It's not the actual 'charger that's the problem, it's the necessary uprating to the car's electric system to cope with the load. The alternator needs to put out some serious ampage, and you end up with an electrical cable that resembles something you usually string from pylons. Of course, if you can change the cars ancillary systems to run at a higher voltage things become much easier. I was never saying that it isn't possible, It's just currently bloody unfeasible, because of mass, two energy changes as opposed to one.. and on and on and on! maybe soon when we all have ready access to superconducting materials and such, it will be a usable possibility.. trouble is i doubt very much we shall be using arcane reciprocating engines that use the mere combustion of fossil fuels for power anyway?! cold fusion or fuel cells direct to superconducting motors! As i said before, ignore the wastefull duplicated energy conversion! Share this post Link to post Share on other sites
Rippthrough 98 Posted March 29, 2006 (edited) I was never saying that it isn't possible, It's just currently bloody unfeasible, because of mass, two energy changes as opposed to one.. and on and on and on! maybe soon when we all have ready access to superconducting materials and such, it will be a usable possibility.. trouble is i doubt very much we shall be using arcane reciprocating engines that use the mere combustion of fossil fuels for power anyway?! cold fusion or fuel cells direct to superconducting motors! As i said before, ignore the wastefull duplicated energy conversion! It's not unfeasable, there be a couple around quickly if the switch to 48v systems ever actually appears. Put it this way, there were test mules around for this before the 205 was even in the dealers. Even if it doesn't electrically aided ( to reduce lag) systems are under prelim. development, have been for years. Edited March 29, 2006 by Rippthrough Share this post Link to post Share on other sites
