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Posted: Mon Jul 30, 2007 12:37 pm 
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Last edited by blackjack_original on Fri Jun 06, 2014 10:44 pm, edited 1 time in total.

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Posted: Mon Jul 30, 2007 3:03 pm 
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it always pays to open your ears before pulling out the ruler to see who has the biggest! LOL

But it was a good read though!

 

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Posted: Mon Jul 30, 2007 6:15 pm 
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blackjack_original wrote:
RedRoo wrote:
Ummm did you guy's read the story or listen to the video properly?
They dont claim to be able to run a air to fuel ratio of 40:1, the only 40 odd they talk about is the 44 to 50% increase of fuel economy.
Quote:
It allows you to take an internal combustion engine from the standard 14.7:1 air-to-fuel ratio to an incredibly lean 24:1. At this ratio


Lol, I admit, I didn't bother reading it as I've read it before. I was just going off 40:1 steady mentioned. In any case though, it may as well be 40:1, same diff.

Lol at 44-50% increase in fuel economy.

EDIT: I thought I'd mention. I'm fairly sure it used to say 40:1 back when phong posted this.


I am also certain there was a 40:1 AFR when i posted, that's why i went with it...i tried tracing the old website but i just got lazy. buh.

phong =P~

 

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Posted: Mon Jul 30, 2007 6:15 pm 
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seems to have stirred up a bit of a debate, yeah you guys are right with the 14.7:1 ratio, that is to burn 1 part of fuel you need the correct amount of oxygen for complete combustion. However where they claim for higher ratio's you will also run into problems with the formation on nitric oxides which are something you kinda want to avoid cos afterall we use air not 100% oxygen and air is ~80% nitrogen (bad for the environment etc etc makes acid rain)
The stoichiometric ratio of 14.7 depends on the fuel type, and the amount of impurities which for a theoretical value you would ignore.
The beauty of tuning your car allows you to tune to your specifications, max power, max efficiency etc etc.

As for plasma plugs, i'd have to see it to believe it, as i am a bit sceptical, I don't see how changing a plug can change the amount of fuel you use, compared to complete efficient combustion.
Also would be interesting to see (havent read the article) how much power/current they draw?
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Posted: Mon Jul 30, 2007 7:48 pm 
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If he was going to run a 40:1 ratio he'd have to reprogram or chip or get a motec or something cause the stock ecu wouldn't go anywhere near that lean.

these plugs WILL! improve economy. but not to 40% maybe 5% if your lucky cause they will ignite ALL the fuel the spark touches. you can see heaps more in the wiz bang one than the old school one. it would just get a cleaner bang.

and it will really improve cold start economy! heaps.

a form of these have been used in top fuelers for years.

they'd be good for my kart racing, but after 5 mins id be looking for a new motor. it'd arc weld the head, barrel and piston to buggery

thats just my two cents

 

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Posted: Mon Jul 30, 2007 7:58 pm 
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I'll admit that i'm no expert here but unless you remap the computer w'ont the oxygen sensor feedback adjust the mixture strength to the stoichiometric point (14.7:1)?
I think I'll just stick with normal srark plugs for the moment LOL.

 

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Posted: Mon Jul 30, 2007 8:25 pm 
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Ofcourse you'll have to change computer settings! :roll:

 

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Posted: Mon Jul 30, 2007 8:55 pm 
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And a new motor each time it goes ping!

 

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Posted: Mon Jul 30, 2007 9:12 pm 
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well obviously youd tune it for the right AFR.

 

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Posted: Mon Jul 30, 2007 10:21 pm 
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efmarek wrote:
well obviously youd tune it for the right AFR.


I was referring to the AFR of 40.7:1 everyone was taking about. you'll probably have holes on the piston the same size as the cylinder bores. lol

 

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Posted: Mon Jul 30, 2007 10:26 pm 
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ebs_4l wrote:
ebs_4l wrote:
you got the required numbers correct, but you dont quite understand why we use rich mixtures under accel....

why will fuel not burn well at 14.7:1 under heavy accel?? ill give you a hint, it does infact burn well, SUPER WELL actually, that good that it becomes an explosive mixture when you have a dense (high cylinder pressure) mixture at that ratio...

as for who said that lean mixtures will melt pistons/valves because lean mixtures burn hotter, the reason parts get hotter with a lean mixture isnt to do with the gas temp, its because the mixture burns so much slower that it exposes all of the parts to the heat for longer



Good one!

We got another guy who doesnt know what he's talking 'bout. :roll:

ok smart a**, what specifically dont you agree with in my post....

and before you reply, ill state that by LEAN mixture, i am talking about a mixture leaner than stoich...

efmarek wrote:
U dont know what your talking bout! U dont need a flame front. The plasma fills the whole combustion chamber instantaniously.......which means it ignites the whole volume of fuel AT THE SAME TIME. Which obviously means there is no chance for PRE-IGNITION.The beauty of it is that u can use s**t fuel for a hi-po engine.

and this?? from a man who seems to be above all in the knowledge stakes... it makes me laugh to think that you would like to ignite ALL of the volume of fuel AT THE SAME TIME...

imagine how a cylinder pressure graph would look if you were to infact achieve that?? conrods wouldnt be particularly happy

also, do you know what pre-ignition is?? if so, would you be willing to enlighten me on how igniting all of the fuel at the same time would mean there is no chance for pre-ignition... im struggling to find the relationship between the two..

looking forward to an indepth, informative reply from you..

 

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Posted: Mon Jul 30, 2007 10:30 pm 
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efmarek wrote:
You guys have to check this out!!

These are "plasma" plugs......not "spark" plugs.

The inventor was able to run air/fuel ratios of ***40 to 1***!!!


http://www.nexusmagazine.com/articles/Firestorm.html

http://www.youtube.com/watch?v=abwXApkLhbc


smiley235 wrote:
Why would u want to run AF's of 40:1? If a normal spark plug can ingnite a 14:1 ratio, whats the point of plasma plug?


smiley235 wrote:

12-14 A/F will give you efficeint combustion Anything more or less will leave you with either an excess of oxygen or fuel. Same with any reaction we did in chemistry. With 40:1, you've got a damaging lean mixture.


efmarek wrote:
hmmmmm..........ye.....i cant think of a reason why you'd want leaner mixtures :roll:


efmarek wrote:
well obviously youd tune it for the right AFR.


If your so expert on this topic, why cant you make up your mind?

 

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Posted: Mon Jul 30, 2007 10:35 pm 
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efmarek wrote:
well obviously youd tune it for the right AFR.


Dug urself a bit of a hole mate???????
so now there IS a corect afr????
would it be 14.7:1 do you think?????

 

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Posted: Mon Jul 30, 2007 11:24 pm 
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Nice one again!!


You've taken my comments out of context.

 

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Posted: Mon Jul 30, 2007 11:26 pm 
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well put them into context for us pls.

 

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