low end punch

the WaTeRhAwK

the WaTeRhAwK

fryin' up a/m electrics..
Location
okc
this is funny....



"The Quasiturbine allows important energy savings without having pretensions of a better thermodynamic performance than any other engine (remember that 4-stroke pistons are propulsive only 19% of the time, and dragging the rest 81% of the time). In fact, the ability of the Quasiturbine to generate a strong and continuous torque at low rpm permits in numerous applications including transportation, the suppression of the heavy and costly gearbox that consumes between 8 and 12 % of the energy. Furthermore, the best power to weight ratio of the Quasiturbine (to which the flywheel suppression contributes) gives rise to lighter vehicles (also due to the suppression of the gearbox) and fuel cost efficiency. The fact that the Quasiturbine does not require energy consuming peripherals (pumps, camshafts, push rods, valves...) also constitutes a gain at the level of energy efficiency. (See High-tech for the detonation mode). Furthermore, the rapid expansion volume just after T.D.C. allows to extract more energy from the initial hot gas with 3 advantages: thermodynamic exhaust cool down, less heat transferred to the engine bloc, and less NOx production. Energy efficiency is related to all the following"


http://quasiturbine.promci.qc.ca/ETheoryQTSpecifics.htm


so, uhmm... would you guys like a little seasoning, or salt and pepper with your words, or would you just prefer to eat them plain and without merit as they actually are?
 
W

waxhead

wannabe backflipper
Location
gold coast
the WaTeRhAwK said:
Hey, genius.......vvvvvvvv

"When a VW Bug has a merged exhaust, this is almost always also an extractor exhaust. The flow of gas out the merged part actually creates a negative pressure on the cylinder that is not on exhaust stroke."


yeah, I really just can NOT see any similarities there at all. :rolleyes:



http://laudeman.com/bug_heatriser.html
Click to expand...

My appoligies then
i just thought we were talking about 2 stroke jetskis and not 4 strokes

I didnt realise you were riding a hydro space
 
the WaTeRhAwK

the WaTeRhAwK

fryin' up a/m electrics..
Location
okc
waxhead said:
My appoligies then
i just thought we were talking about 2 stroke jetskis and not 4 strokes

I didnt realise you were riding a hydro space
Click to expand...


dude, it's the SAME basic principle, when the exhaust leaves one cylinder it draws on the other one, did you not read that?
that is called extraction.
 
W

waxhead

wannabe backflipper
Location
gold coast
the WaTeRhAwK said:
this is funny....



"The Quasiturbine allows important energy savings without having pretensions of a better thermodynamic performance than any other engine (remember that 4-stroke pistons are propulsive only 19% of the time, and dragging the rest 81% of the time). In fact, the ability of the Quasiturbine to generate a strong and continuous torque at low rpm permits in numerous applications including transportation, the suppression of the heavy and costly gearbox that consumes between 8 and 12 % of the energy. Furthermore, the best power to weight ratio of the Quasiturbine (to which the flywheel suppression contributes) gives rise to lighter vehicles (also due to the suppression of the gearbox) and fuel cost efficiency. The fact that the Quasiturbine does not require energy consuming peripherals (pumps, camshafts, push rods, valves...) also constitutes a gain at the level of energy efficiency. (See High-tech for the detonation mode). Furthermore, the rapid expansion volume just after T.D.C. allows to extract more energy from the initial hot gas with 3 advantages: thermodynamic exhaust cool down, less heat transferred to the engine bloc, and less NOx production. Energy efficiency is related to all the following"


http://quasiturbine.promci.qc.ca/ETheoryQTSpecifics.htm


so, uhmm... would you guys like a little seasoning, or salt and pepper with your words, or would you just prefer to eat them plain and without merit as they actually are?
Click to expand...

I thought i would just quote this
because you have made the biggest fool of your self here

You have been arguring 2 stroke princibles using 4 stroker theory
the only thing you could do now thats dummer is to try and convince people its the same
that would be like in the face of companies like factory pipe etc
who try hard to get triple pipes into a ski to stop the cylinders contaminating each other

hang on do you have a theroy for that one as well
This is priceless
 
crammit442

crammit442

makin' legs
Location
here
How many can say they started a thread that's going on almost a year and has bridged between two different websites? Wad RULES!!!!!!!!:headbang:

Charles
 
the WaTeRhAwK

the WaTeRhAwK

fryin' up a/m electrics..
Location
okc
nice to see you charles, it's been awhile. :smile:


anyway,,


wax, my point with posting that link to the quasi turbine was to show you that the extraction in exhaust systems in not isolated to just one of my theories, or the clymer manual, or the VW bug website, or any of those links I posted,
the extractor term is based on how the thing works overall.
anytime you have an action where a particular flow volume of gas, air water, or whatever it happens to be, going by an opening, venturi, port, whatever you want to call it, the physical action taking place on the opening it passes is called "extraction". this effect is performed all over a jet ski in various places for various reasons.
the reason they call extractor exhausts "extractors" is because they arent just an open header pipe with no expansion area going from each cylinder out of the vehicle, they are designed with the performance of the vehicle in mind when they are built, this results in the way they're designed...LOL
they are designed to extract, and that is what they do. 4 strokes or 2 strokes, alike. the intended end result of their design is maximum running efficiency( scavenging) +horsepower(expansion area).
 
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W

waxhead

wannabe backflipper
Location
gold coast
Ha ha
I am still laughing at your post about 2 and 4 stroke being the same

The sad thing is i thought i was arguring with some one that actually knew how it worked
but was just a bit unsure upon some smaller points
not some one that had no clue about it

I bet honda wish they new that extraction thing
it would have worked awesome on there rs500 gp bikes

as well as all the other two stroke bikes we see around with mutiple chambers and exhaust

Ha ha the jokes on them they shouldhave read the clymer bible
 
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the WaTeRhAwK

the WaTeRhAwK

fryin' up a/m electrics..
Location
okc
I never said they were the same, I said that the pipes designs, the way they are, are for the same purposes for the engines they are designed for.
 
the WaTeRhAwK

the WaTeRhAwK

fryin' up a/m electrics..
Location
okc
waxhead said:
yup quote me on that one
Are you telling me that a two stroke with a merged exhaust is not a compromise and its in fact a better system then stand alone pipes
Click to expand...


No, what I'm saying is I think it's funny that you totally disavou the fact that they perform the same functions as "extractor exhausts" even though they are setup differently.

it's just basic physics man.


and as far as them being better than one another, that mostly depends on the engine itself, and what type of performance is desired from it.
single pipes are still extractors, but in my experience they aren't as efficient for low-end performance as single pipes with merged exhaust systems.
I think that an engine with dual pipes, or a pipe per cylinder, actually has to work harder on the bottom to get out of the hole as fast as a merged system, but the top speed is better because at high rpms they aren't conflicting with one another. you can't say that for the low-end because the reflex waves are different for the low-end power effect.
 
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W

waxhead

wannabe backflipper
Location
gold coast
u dont think then that the two stroke expansion system actually creates a negative pressure above the piston and actually drags unburnt fuel out in to the chamber
you believe it is pushed out by the piston
I just need to get it right about what you are saying here
 
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F

Freestyleriverrat

Guest
Can we rename this thread One Legged Man in an A$$ Kicking Contest :haha: :Banane01:
 
the WaTeRhAwK

the WaTeRhAwK

fryin' up a/m electrics..
Location
okc
waxhead said:
u dont think then that the two stroke expansion system actually creates a negative pressure above the piston and actually drags unburnt fuel out in to the chamber
you believe it is pushed out by the piston
I just need to get it right about what you are saying here
Click to expand...


I know thats what happens, thats where it's extracted, thats why they call it an extractor exhaust system.

I've already told you that numerous times.
 
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