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Gas vapor video.....on a two stroke

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Ebrownie

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Seems kinda impractical although it is interesting how they did that. How is the gas vaporized? I get how it monitors the flow, but it also seems kinda tough to keep it running right, seems like it would nearly always either run rich or lean.
 

Flyinhillbilly

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The air just bubbles through the gas and carries the vapor. Supposedly you can get crazy efficiency out of the that way. What has me wondering is the two stroke oil. Will it carry as a vapor? If so will it in sufficient quantities?
 

Ebrownie

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Oh yea I didn't think about that. But, I think that since it is already mixed with the gas, it wouldn't separate just because of its mass. I guess it looks like it worked just fine, although you would have to run it for a while longer to see if it wasn't getting enough lubrication.
 

Flyinhillbilly

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I know a two stroke will live longer than you think without oil. We used to race chainsaws on friendly wagers. Our competitive nature had us leaning them out, running them without oil, cutting drags, all kinds of crap. I never blew up an engine, but I'm sure it didn't do them any favors.
 

Randy H

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Running a two stroke without oil actually makes that engine run richer. 20:1 is leaner than 40:1. Do I make sense?
 

Whitetrashrocker

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I know a two stroke will live longer than you think without oil. We used to race chainsaws on friendly wagers. Our competitive nature had us leaning them out, running them without oil, cutting drags, all kinds of crap. I never blew up an engine, but I'm sure it didn't do them any favors.

I have my grandfather's old pioneer 1200. We cut the dawgs off the chains and it don't care. It will wear you out. But talk about getting with it.

---------- Post added at 10:22 PM ---------- Previous post was at 10:17 PM ----------

I wanna know how the gas is vaporized too.
 

itsid

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the fuelmix doesn't care too much HOW it's vaporised if by injection or "ordinary" carburetion or by simply vaporising the fuel.

And while air/fuel mix indeed is a bit trickier to dial in with a vapor carb.. I think most of the variables work in your favour.
IIRC it's barely possible to get a too rich mix this way since the saturated air will allow less and less fuel to vaporize.
So it's more of a flow-rate control really... and you could always add some side air to lean out the mix.

running too lean might be an issue, but fixing that is not too difficult either so I heard at least..
more fuel surface per breath of air to pass and it'd be good *shrugs* IDK

But nice to see a vapor carb in other than fraudulent setups (Geet or what it's called)
:thumbsup:

How it works..

as straight forward as it's gonna get.. ..
ever drank a soda with a straw from the bottle? bubbling to get more fizz?
exactly that!
get your favourite soda bottle and put in a straw, cover the bottle neck with your mouth having just the straw sticking out.. breath in.. you are now a soda vapor carb ;)

basically that's all there is to it.

'sid
 
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