of zac
Have you measured your depressure?
If so, how many do you find?
hi zac; from 0 to about -100 millibar
-50 millibar to 110 km / h on the flat
"Passat 1.9TDI"
Big reduction
Bonjour à tous
Today I made a big diameter reduction between the flowmeter and the AVEC in the connection between air filter and turbo; transition from 70mm to 27mm.
I have a depression from slow motion, I realized by purging the filter out of the bubbler.
https://www.econologie.com/fichiers/partager/PurgeFiltre5.jpg
Do not tell me that the photo is not good, I know it but hey we must see that during the engine bleeding en route air bubbles enter the filter.
The rest of the depression measures tonight in normal use of the car.
Today I made a big diameter reduction between the flowmeter and the AVEC in the connection between air filter and turbo; transition from 70mm to 27mm.
I have a depression from slow motion, I realized by purging the filter out of the bubbler.
https://www.econologie.com/fichiers/partager/PurgeFiltre5.jpg
Do not tell me that the photo is not good, I know it but hey we must see that during the engine bleeding en route air bubbles enter the filter.
The rest of the depression measures tonight in normal use of the car.
0 x
Less consumption is good
Less pollution is already a great result
Less pollution is already a great result
No reaction sensation of the reactor
Bonjour à tous
Road depression control
- 50 mbar to 2000 rpm
- 100 mbar to 2500 rpm
- 150 mbar to 3000 rpm
- 180 mbar to 3500 rpm
to note a sudden but short fall of the depression when I am around the 3500 rpm.
No feeling of attachment of the reactor.
I will remove the filter that is in the small filter tank at the outlet of the bubbler.
The next episode.
Road depression control
- 50 mbar to 2000 rpm
- 100 mbar to 2500 rpm
- 150 mbar to 3000 rpm
- 180 mbar to 3500 rpm
to note a sudden but short fall of the depression when I am around the 3500 rpm.
No feeling of attachment of the reactor.
I will remove the filter that is in the small filter tank at the outlet of the bubbler.
The next episode.
Last edited by RolCopter the 23 / 05 / 07, 18: 18, 1 edited once.
0 x
Less consumption is good
Less pollution is already a great result
Less pollution is already a great result
Re: No reaction sensation of the reactor
Hello Rolcopter
If it is close to the maximum torque regime it may be due to a resonance of the intake duct. Does the noise change in amplitude at this time?
Chao
RolCopter wrote:
to note a sudden but short fall of the depression when I am around the 3500 rpm.
If it is close to the maximum torque regime it may be due to a resonance of the intake duct. Does the noise change in amplitude at this time?
Chao
0 x
Reason is the madness of the strongest. The reason for the less strong it is madness.
[Eugène Ionesco]
http://www.editions-harmattan.fr/index. ... te&no=4132
[Eugène Ionesco]
http://www.editions-harmattan.fr/index. ... te&no=4132
the same exhaust is sold for different engines
good night all
from Flytox
Feel a change in the intake caused by a resonance of the exhaust I do not really believe in it even less at max torque regime, especially since the manufacturers have long no longer allow exhausts, for proof; the same exhaust is sold for different engines.
from Flytox
If it is close to the maximum torque regime it may be due to a resonance of the intake duct. Does the noise change in amplitude at this time?
Feel a change in the intake caused by a resonance of the exhaust I do not really believe in it even less at max torque regime, especially since the manufacturers have long no longer allow exhausts, for proof; the same exhaust is sold for different engines.
0 x
Less consumption is good
Less pollution is already a great result
Less pollution is already a great result
Re: the same exhaust is sold for different engines
Hello Rolcopter
From what I understood (resonances) the admission side vibrates on his side, the exhaust side does the same.
This does not prevent interactions (crossing valves, turbo, etc. ..)
When their work is synchronized to be constructive (pressure or depression which arrives at the right time in the cycle to help filling) we are close to the maximum torque speed. This is the "optimization" calculated by the engine manufacturer.
In agreement with you, the escapement is not granted as on a machine of great price for perfo maxi, but it is studied not to cause holes and bumps too accentuated in the curve of torque. That it's easy to drive without a lap count.
When we do piping on the pipes, it's not always
transparent on the operation. The same stitch placed at the end or the middle of the length of a pipe can significantly change the music (resonance).
In the middle Moto looks systems YEIS (Yamaha), ATAC (Honda), KIPS (Kawasaki). These are systems for damping or phase shifting the pressure waves. They are placed in a very specific place of piping ...
For your engine, I assumed that you came across this phenomenon. It is quite possible that the depression value you are reading at 3500 RPM at this specific location is not representative.
As well, by moving the tapping on the piping along the length, you will be able to read a value in the continuity of your curve.
(Next if you fall on a stomach or a pressure knot).
In short if your engine works well on this diet, I think you can neglect the measure at this place.
Econologiquement yours.
RolCopter wrote:
Feel a change in the intake caused by a resonance of the exhaust I do not really believe in it even less at max torque regime, especially since the manufacturers have long no longer allow exhausts, for proof; the same exhaust is sold for different engines.
From what I understood (resonances) the admission side vibrates on his side, the exhaust side does the same.
This does not prevent interactions (crossing valves, turbo, etc. ..)
When their work is synchronized to be constructive (pressure or depression which arrives at the right time in the cycle to help filling) we are close to the maximum torque speed. This is the "optimization" calculated by the engine manufacturer.
In agreement with you, the escapement is not granted as on a machine of great price for perfo maxi, but it is studied not to cause holes and bumps too accentuated in the curve of torque. That it's easy to drive without a lap count.
When we do piping on the pipes, it's not always
transparent on the operation. The same stitch placed at the end or the middle of the length of a pipe can significantly change the music (resonance).
In the middle Moto looks systems YEIS (Yamaha), ATAC (Honda), KIPS (Kawasaki). These are systems for damping or phase shifting the pressure waves. They are placed in a very specific place of piping ...
For your engine, I assumed that you came across this phenomenon. It is quite possible that the depression value you are reading at 3500 RPM at this specific location is not representative.
As well, by moving the tapping on the piping along the length, you will be able to read a value in the continuity of your curve.
(Next if you fall on a stomach or a pressure knot).
In short if your engine works well on this diet, I think you can neglect the measure at this place.
Econologiquement yours.
0 x
Reason is the madness of the strongest. The reason for the less strong it is madness.
[Eugène Ionesco]
http://www.editions-harmattan.fr/index. ... te&no=4132
[Eugène Ionesco]
http://www.editions-harmattan.fr/index. ... te&no=4132
the resonance is almost non-existent with catalysts
Bonjour à tous
from Flytox
It is obvious that on two-stroke engines the exhausts are studied with the greatest care their participation in emptying the engine is essential.
On motorcycle exhaust 4 time we also take care of fluid mechanics simply because a small length exhaust has to be tuned to work well.
On a car the incidence is less important, the resonance has become almost non-existent with the catalytic converters.
My first job being boilermaker, at a time when the karts used motocross motorcycles, I was responsible for remodeling the exhausts from the chassis while maintaining their optimum gas extraction qualities.
from Flytox
In the middle Moto looks systems YEIS (Yamaha), ATAC (Honda), KIPS (Kawasaki). These are systems for damping or phase shifting the pressure waves. They are placed in a very specific place of piping ...
It is obvious that on two-stroke engines the exhausts are studied with the greatest care their participation in emptying the engine is essential.
On motorcycle exhaust 4 time we also take care of fluid mechanics simply because a small length exhaust has to be tuned to work well.
On a car the incidence is less important, the resonance has become almost non-existent with the catalytic converters.
My first job being boilermaker, at a time when the karts used motocross motorcycles, I was responsible for remodeling the exhausts from the chassis while maintaining their optimum gas extraction qualities.
0 x
Less consumption is good
Less pollution is already a great result
Less pollution is already a great result
Re: resonance is almost non-existent with catalysis
RolCopter wrote:I was in charge of remodeling the exhausts with respect to the chassis while maintaining their optimum qualities of gas extraction.
Well did you have to hear about the barges that made the tour of the kart to their pot?
The FIA was forced to change the rules to counter them
@+
0 x
Said the zebra, freeman (endangered breed)
This is not because I am con I try not to do smart things.
This is not because I am con I try not to do smart things.
Only the weather changes
Bonjour à tous
of zac
On the one hand there are bargeos and also regulations that go in the direction of security and sometimes regulations with unspeakable options that are more of a commercial nature. But we will not do the world again overnight.
Let's go back to our sheep, as I reported on the post of michelm my exhaust does not lend itself really to the establishment of a reactor and I plan to make a complete tube to integrate the object of our test. By cons I often do not have the opportunity to stop this car, it will have to be patient.
https://www.econologie.com/fichiers/partager/CataPantone-7.jpg
Even if the reactor does not work the little steam introduced into the engine seems to clean the soot that was deposited at the exhaust outlet (visible and accessible) which lends itself to thinking that this cleaning also has to occur upstream .
For information last consumption noted 6.4 l / 100 km the use of this car is very regular and similar in time; 70km every day a dose of Paris, departmental and city. Only the weather changes
of zac
Well did you have to hear about the barges that made the tour of the kart to their pot?
The FIA was forced to change the rules to counter them
On the one hand there are bargeos and also regulations that go in the direction of security and sometimes regulations with unspeakable options that are more of a commercial nature. But we will not do the world again overnight.
Let's go back to our sheep, as I reported on the post of michelm my exhaust does not lend itself really to the establishment of a reactor and I plan to make a complete tube to integrate the object of our test. By cons I often do not have the opportunity to stop this car, it will have to be patient.
https://www.econologie.com/fichiers/partager/CataPantone-7.jpg
Even if the reactor does not work the little steam introduced into the engine seems to clean the soot that was deposited at the exhaust outlet (visible and accessible) which lends itself to thinking that this cleaning also has to occur upstream .
For information last consumption noted 6.4 l / 100 km the use of this car is very regular and similar in time; 70km every day a dose of Paris, departmental and city. Only the weather changes
0 x
Less consumption is good
Less pollution is already a great result
Less pollution is already a great result
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