sapper ion
Posts: 236
Joined: 2/27/2007
From: Whatever, USA
Status: offline
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WoW the only thing I gained in this whole forum is that people just do not know when to stop arguing.
"Dudewhateveryournumbersare" They are right in the fact that even though it is a few seconds long it will destroy that cylinder wall. Plus if you are going to argue with someone do some research, All you did in most of your comments was rearrange your words to make it sound different, but you really had nothing new.
125 - I agree with you in whole, you definatly seem to know what you are talking about, but after 5 pages you probably should just drop the argument. It is like pissing into the wind no matter what, it will come right back at you and nobody will gain anything.
Now the next tidbit of info is IN THEORY talk, and is second-hand since it was passed on to me from an engineer who understands this a lot more then I.
First thing he said was that trying to regulate pressure would be close to impossible "You would have to build this system like a Swiss Made Watch" that said here we go.
To do this and actually make it work you would have to understand first that in a Nitro Fuels You need roughly a 2:1 ratio meaning two parts air to one part fuel, This is quite a bit allready considering Gasoline Engines run at about 4:1. Partial reason is because Nitro carrys its own oxygen in it.
So With that in mind you would need to find a way to regulate the fuel mixture. Hense the debate that has made this go 5 pages. One way you could do it is run a duel system, one to regulate nitrous and one to regulate fuel. On most cars there are to brackets one that delivers fuel and one that runs nitrous, they work with each other to make sure the exact ratio desired is met.
How could you do this on a rc engine you ask? I don't know for sure, One theory was that you have a dual needle system, one to run normally and one to take over when that nitrous hits. Once again You would have to be VERY precise to get this right.
One other thing you have to keep in mind is to regulate the pressure as it is going in to keep it in the liquid state. With a little wipit this could be quite interesting, The only way I can see this happening is using a regulator, this reg would have to be able to only allow a band of pressure set at both ends so you won't get liquid it nor will you get too much pressure into the engine. "Anyone see where that glow plug landed"
And Lastly "also stated once" Since these little engines basically run like a diesel, You would need to be able to find away to prevent pre-ignition. Not sure on a way yet, but my only guess is run the coldest plug you can find and do not let it idle. "follow that, no, i understand"
So all in all yes there are neat little dyno graphs that say it worked, but we have no idea how rich that engine was running "for all we know it could have been 4-cyclin w/o the nitrous, but when the nitrous hits it would basically hit that perfect tune." I just don't see how this is gonna be useful for anything other then destroying rods and piston walls.
Next topic. Why superchargers wont work on any 2 cycle.
Simple answer they work on a 4 cycle mainly because of the port time, when that boost enters the cylinder the exhaust valve is closed, and it stays closed until after ignition. Where as a 2 cycle every revolution both ports are open, any boost you try and put in there will probably have escaped by the time it is ready to fire.
Now like I said the info I gave is second hand And I am sure I have messed a few details up, but for the most part I believe I got the point accross. If anyone "who knows something about engines" would like to step in and correct my flaws go ahead. I am sure there is a few.
Also for those who like to argue about why the sky is blue all day Go ahead, I won't be joining, I may check back to see if what people say, but that is about it.
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Printable Version
All Forums >> RC Cars, Buggies, Trucks, Tanks and more >> RC Nitro Stadium Trucks >> RE: NITROUS EXPRESS SYSTEM 
RE: NITROUS EXPRESS SYSTEM - 
thats high performance fuel. 
LOL