Crankcase ventilation
+11
yves5458
mustangii
papouze
racerx
dart
fanamc
firebuick
pp.dd
rwarrior
PhilSS
Domtruck
15 participants
Page 3 sur 4
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Re: Crankcase ventilation
J'avais le même trouble avec des breather comme firebuick a avec l'autre modèle et pcv plus de trouble sans envoyer rien dans lles muffler!
Re: Crankcase ventilation
Le 425 a domtruck était un champion des backfire avant qu'ont lui remplace les spring de valve le feu a jamais pris dans les muffler!mustangii a écrit:Domtruck a écrit:mustangii a écrit:
serieusement le kit moroso c'est une belle marde pour remplir les mufflers d'huile a la longue... devrait pas etre utilisé sur un char de rue... en extrapolant un peu imagine quelques bon backfire dans l'exhaust avec les mufflers remplis d,huile... ca va faire comme les plus vieux qui chauffaient leurs poeles dans le garage avec des filtreurs a huile.... suivre un char que ca fait des années qui roule comme ca ca te fait un beau windshield bien gras apres... c,est correct sur un char de course that's it
mieux avec une catch can... en plus de ne pas beurrer le char ca fait pas d'huile qui coule nul part..
En as-tu déjà eu un kit de même?
Ou bien tu as entendu parler un de tes chums?
Me semble que tu beurre épais pas mal...
non c,est un sujet qui a deja eu lieu sur un forum de course. mais quand tu t’arrêtes a y penser 2 minutes c'est la logique... regarde ce que firebuick a ecris ses breathers se remplissent d'huile donc avec un systeme qui syphonne dans l'exhaust c'est la laine dans les mufflers qui vont absorber l'huile....... apres ca mets y quelques bons backfire voir si ca va allumer l'huile
Re: Crankcase ventilation
Des tests sur Dyno ont été faits à partir de plusieurs setup.
L'avantage de ce genre de système est indéniable.
Y'en a pour tout les goûts: ( attention, la page est longue )
Drag Racer Thrashes Parts on the Moroso Performance Dyno
July 7th, 2010
By Randy Fish
Check out our stats from 10 pulls in one day.
The original “Drag Special” front tire from Moroso Performance has been a “must-have” item for decades, thanks to its light weight construction and lower rolling resistance. And that’s not all the parts maker is famous for. Since 1968, Moroso has pioneered the development of deep-sump oil pans, pan evacuation systems, vacuum pumps, and countless other performance systems and accessories.
Recently, the Drag Racer team was pleased to spend a day at Moroso Performance, where its team of engineers soundly thrashed a host of parts on the company’s DTS dyno. This aggressive project showed us (in real time) how a host of products have increased horsepower over the years.
Mule Engine Basics
The mule engine selected for this exercise was a 582-inch big-block Chevy provided decent results from most of the products tested here. However, it’s difficult to baseline such a wide variety of power producing items using one mule, as different combinations respond differently when applied to engines that put out either less or more grunt.
Specs …
» 582-inch Big-Block Chevy
» 4.600-inch bore / 4.375-inch stroke
» 14:1 compression
» VP Racing Fuel (C-12 108-octane)
» DTS 4000 Dyno
» Water and Oil temperature (beginning of pull) 160 to 165 degrees
» Petroleum-Based 15W40 oil
» Dyno Pulls from 5,300 to 7,500 RPM
FIRST PULL
» Oil pan: #20401
» Oil pump: #22175
» Evacuation System: #68817 breathers w/ #68357 Valve Covers
» Peak H.P. 935
» Peak Torque 772
» Average H.P. 887
» Average TQ 732
» Average Oil Pressure 39.5
» Average Vacuum 0.00
» “Street Price” $819.86
RESULTS: This is the basic set-up that evolved from the early days of bracket racing engines. This initial test demonstrates what an engine with a street/strip pan and a standard volume oil pump will make for power. After 6,000 RPM the oil pressure dropped approximately 10 psi. Using six quarts with this set-up is suitable, but the stroke of the engine shows how it will affect the oil control in the oil pan. In most cases, this line of oil pans will produce restrictions on the performance of a 4.375-inch stroke (or higher) engine, as noted in our disclaimer at the end of the text.
SECOND PULL
CHANGE: #25900 Pan Evacuation Kit – Remove breathers, and install evacuation breathers and lines to pan evacuation bungs in collectors
Topic shown: The difference between the engine breathing versus a small amount of crankcase vacuum created. Many classes do not allow vacuum pumps, and many racers still use them.
» Peak H.P. 964 + 29
» Peak Torque 779 +7
» Average H.P. 904 +7
» Average TQ 745 +13
» Average Oil Pressure 38.1 psi (-1.4)
» Average Vacuum 5.04 in/hg +5.04
» “Street Price” increases $56.25
RESULTS: Releasing the crankcase pressure is essential to making power. Many classes of racing do not allow evacuation pumps or “vacuum pumps” by the rules, so making a “Pan-E-Vac” system work will gain power by creating some amount of vacuum. This type of system can be purchased for a minimal amount of money and effort to gain the numbers seen.
THIRD PULL
CHANGE: #22185 High-Volume Oil Pump and Pick-Up – drop oil pan, swap oil pump and pick-up, re-install #20401 pan.
TOPIC SHOWN: How the oil pressure and horsepower changes, based on increasing the oil pump size. Over the years, there has been endless discussions on how much power is used to turn a high-volume pump, and how much more oil pressure is created, along with volume.
» Peak H.P. 953 – 11
» Peak Torque 764 -15
» Average H.P. 890 -14
» Average TQ 733 -12
» Average Oil Pressure 45.0 psi +6.9
» Average Vacuum 5.14 in/hg +0.10
» “Street Price” increases $17.02
RESULTS: People always ask about needing a high-volume pump, which produces more oil pressure, thinking it’s going to be their savior. Well, it will give you more oil pressure, but a loss of nearly one-percent of the horsepower it takes to run your engine. This shows without a doubt that there is a cause and effect on making the decision to increase your oil pressure.
FOURTH PULL
CHANGE: Remove #20401 oil pan – Install #21047 oil pan
TOPIC SHOWN: Changing over from a Street/Strip oil pan to a full Drag Race oil pan with kick-out and solid-louvered tray. This oil pan also has a 5-inch deep front sump versus the 4.5-inch deep stock sump. How this works above 6,500 RPM will show the advantages between a “Street/Strip Pan” and a “Drag Race Pan.”
» Peak H.P. 993 +40
» Peak Torque 780 +16
» Average H.P. 919 +29
» Average TQ 756 +23
» Average Oil Pressure 60.1 psi +15.1
» Average Vacuum 5.02 in/hg -0.12
» “Street Price” increases $203.50
RESULTS: This test clearly demonstrates how much better a Drag Race Pan performs over 6,500 RPM and makes a big difference in the horsepower. It will also make gains at lower RPM and increase the torque, thus improving the elapsed time of any car. This 582 cubic inch engine showed that the benefits are big. However, the gains will always be proportional to the size of the stroke in the engine. The oil pressure is more stable as the oil will return to the sump area far more efficiently, and gives a much smoother pressure trace.
FIFTH PULL
CHANGE: Install 22640 Vacuum Pump System – (Remove pan evacuation system and valve covers) – Install #68356, and vacuum pump system (#22640, #63910, #22649, #22630, #64888 #97172, #63849, #85465)
TOPIC SHOWN: The gain from a three-vane vacuum pump. This is the company’s best selling vacuum pump, and is also its original design. Oil pressure changes, horsepower and torque gains, and installation were the highlights with this change. The pump was run at 50 percent of engine speed.
» Peak H.P. 1018 +25
» Peak Torque 791 +11
» Average H.P. 934 +15
» Average TQ 768 +12
» Average Oil Pressure 58.1 psi -2.0
» Average Vacuum 13.25 in/hg +8.23
» “Street Price” increases $1095.00
RESULTS: Creating more crankcase vacuum is worth power, even though we already had a Pan-E-Vac” System on it. The belt-driven vacuum pump created more vacuum, more consistently, throughout the power range (and at idle). In some cases the oil pressure will drop when this much vacuum is applied, but having an oil pump that is larger than what the system needs will often make up for the vacuum that will typically create more oil flow, and less oil pressure to read on the oil pressure gauge.
SIXTH PULL
CHANGE: Install #22642 Vacuum Pump (remove #22640 pump and bracket)
TOPIC SHOWN: The difference between a three-vane and a four-vane pump on a wet-sump engine.
» Peak H.P. 1024 +6
» Peak Torque 797 +6
» Average H.P. 941 +7
» Average TQ 774 +6
» Average Oil Pressure 60.0 psi +1.9
» Average Vacuum 16.17 in/hg +2.92
» “Street Price” increases $140.29
RESULTS: The Moroso “Enhanced” vacuum pump works better in the area of vacuum than the “Original” design Moroso Vacuum Pump. This comparison shows the gain with a few inches of vacuum. On an engine this size, making and average of 16 inches of vacuum is about as much as you would want.
SEVENTH PULL
CHANGE: #21049 oil pan and #22187 oil pump combo (remove #21047)
TOPIC SHOWN: How well the new-style Steel Oil Pan and Shrouded Oil Pump work.
» Peak H.P. 1025 +1
» Peak Torque 802 +5
» Average H.P. 956 +15
» Average TQ 775 +1
» Average Oil Pressure 66.6 psi +6.6
» Average Vacuum 16.35 in/hg +0.17
» “Street Price” increases $31.89
RESULTS: While the peak numbers aren’t that different, the average horsepower number is much higher, and shows how oil pan tray design can increase power throughout the pull, and therefore, your run. Subtle changes can garner big results in oil pan design. Notice the better oil pressure throughout, as this pull was made with seven quarts of oil.
EIGHTH PULL
CHANGE: Install #22164 Billet Oil Pump (remove oil pan and swap oil pumps)
TOPIC SHOWN: The difference between a cast pump and a billet pump, in both horsepower and oil pressure.
» Peak H.P. 1025 0
» Peak Torque 803 +1
» Average H.P. 958 +2
» Average TQ 774 -1
» Average Oil Pressure 74.3 psi +7.7
» Average Vacuum 16.50 in/hg +0.15
» “Street Price” increases $290.28
RESULTS: The power didn’t change with the oil pump swap, even though it was a High Volume vs. Standard Volume change where we saw a gain in the previous pulls. But, you will notice how good the oil pressure was with a billet oil pump versus the cast iron pump housing. This will show that with all the power we are making, a standard-volume pump will keep up with (or exceed) what the end user would want for oil pressure.
NINTH PULL
Change: #20385 Aluminum Drag Race Oil Pan (remove #21047 steel oil pan), install race pattern gasket and stud kit #38361
TOPIC SHOWN: The difference in power and oil pressure with a larger sump and bigger kick-outs. Do these enhancements really make more power?
» Peak H.P. 1027 +2
» Peak Torque 805 +2
» Average H.P. 960 +2
» Average TQ 777 +3
» Average Oil Pressure 76.1 psi +1.8
» Average Vacuum 16.48 in/hg -0.02
» “Street Price” increases $168.60
RESULTS: The aluminum oil pan is lighter, easier to work with and has the full race bolt pattern and drain-back bungs. For this test, the 582’s stroke was not showing the gains that you would see on a 4.500-inch stroke (and up) combination. The aluminum pan holds the oil pressure and works very well over 8,000 RPM, a range which is commonly seen in today’s popular bracket racing engines.
TENTH PULL
CHANGE: #22843 Vacuum Pump (remove #22642 Vacuum Pump)
TOPIC SHOWN: Installing a large vacuum pump and making a bunch of vacuum. What does it do for power and oil pressure? How much is too much?
» Peak H.P. 1023 -4
» Peak Torque 799 -4
» Average H.P. 958 -2
» Average TQ 773 -4
» Average Oil Pressure 74.9 psi -1.2
» Average Vacuum 18.15 in/hg +1.67
» “Street Price” increases $213.73
RESULTS: Making “more” vacuum isn’t going to make you more power, as this pull shows. The #22843 Pro-Mod vacuum pump takes more power to drive, and will make more vacuum. But, as with anything, it will peak out. And on many engines this size, 16 inches of vacuum is typically the highest number you would want to see. Dry-sump engines will benefit from these vacuum numbers. Even with the high vacuum numbers, the standard-volume oil pump still maintained good oil pressure.
Moroso’s engineering guys went above and beyond the call of duty in order to complete 10 dyno pulls in one day. However, everything went off without a hitch and the end result came with a mountain of data that quantified each and every change that took place. We came away with new-found respect for the practice of research and development – something Moroso Performance used liberally while building its respected legacy. Of course, on-track testing (and winning) has always been another cornerstone of this company’s overall plan. Rest assured the same degree of engineering, research and development goes into the entire product line available from the Moroso Performance Products family, which includes Competition Engineering and Moroso Wire Technologies.
SOURCE
Moroso Performance Products
80 Carter Drive, Dept. DR
Guilford, CT 06437
L'avantage de ce genre de système est indéniable.
Y'en a pour tout les goûts: ( attention, la page est longue )
Drag Racer Thrashes Parts on the Moroso Performance Dyno
July 7th, 2010
By Randy Fish
Check out our stats from 10 pulls in one day.
The original “Drag Special” front tire from Moroso Performance has been a “must-have” item for decades, thanks to its light weight construction and lower rolling resistance. And that’s not all the parts maker is famous for. Since 1968, Moroso has pioneered the development of deep-sump oil pans, pan evacuation systems, vacuum pumps, and countless other performance systems and accessories.
Recently, the Drag Racer team was pleased to spend a day at Moroso Performance, where its team of engineers soundly thrashed a host of parts on the company’s DTS dyno. This aggressive project showed us (in real time) how a host of products have increased horsepower over the years.
Mule Engine Basics
The mule engine selected for this exercise was a 582-inch big-block Chevy provided decent results from most of the products tested here. However, it’s difficult to baseline such a wide variety of power producing items using one mule, as different combinations respond differently when applied to engines that put out either less or more grunt.
Specs …
» 582-inch Big-Block Chevy
» 4.600-inch bore / 4.375-inch stroke
» 14:1 compression
» VP Racing Fuel (C-12 108-octane)
» DTS 4000 Dyno
» Water and Oil temperature (beginning of pull) 160 to 165 degrees
» Petroleum-Based 15W40 oil
» Dyno Pulls from 5,300 to 7,500 RPM
FIRST PULL
» Oil pan: #20401
» Oil pump: #22175
» Evacuation System: #68817 breathers w/ #68357 Valve Covers
» Peak H.P. 935
» Peak Torque 772
» Average H.P. 887
» Average TQ 732
» Average Oil Pressure 39.5
» Average Vacuum 0.00
» “Street Price” $819.86
RESULTS: This is the basic set-up that evolved from the early days of bracket racing engines. This initial test demonstrates what an engine with a street/strip pan and a standard volume oil pump will make for power. After 6,000 RPM the oil pressure dropped approximately 10 psi. Using six quarts with this set-up is suitable, but the stroke of the engine shows how it will affect the oil control in the oil pan. In most cases, this line of oil pans will produce restrictions on the performance of a 4.375-inch stroke (or higher) engine, as noted in our disclaimer at the end of the text.
SECOND PULL
CHANGE: #25900 Pan Evacuation Kit – Remove breathers, and install evacuation breathers and lines to pan evacuation bungs in collectors
Topic shown: The difference between the engine breathing versus a small amount of crankcase vacuum created. Many classes do not allow vacuum pumps, and many racers still use them.
» Peak H.P. 964 + 29
» Peak Torque 779 +7
» Average H.P. 904 +7
» Average TQ 745 +13
» Average Oil Pressure 38.1 psi (-1.4)
» Average Vacuum 5.04 in/hg +5.04
» “Street Price” increases $56.25
RESULTS: Releasing the crankcase pressure is essential to making power. Many classes of racing do not allow evacuation pumps or “vacuum pumps” by the rules, so making a “Pan-E-Vac” system work will gain power by creating some amount of vacuum. This type of system can be purchased for a minimal amount of money and effort to gain the numbers seen.
THIRD PULL
CHANGE: #22185 High-Volume Oil Pump and Pick-Up – drop oil pan, swap oil pump and pick-up, re-install #20401 pan.
TOPIC SHOWN: How the oil pressure and horsepower changes, based on increasing the oil pump size. Over the years, there has been endless discussions on how much power is used to turn a high-volume pump, and how much more oil pressure is created, along with volume.
» Peak H.P. 953 – 11
» Peak Torque 764 -15
» Average H.P. 890 -14
» Average TQ 733 -12
» Average Oil Pressure 45.0 psi +6.9
» Average Vacuum 5.14 in/hg +0.10
» “Street Price” increases $17.02
RESULTS: People always ask about needing a high-volume pump, which produces more oil pressure, thinking it’s going to be their savior. Well, it will give you more oil pressure, but a loss of nearly one-percent of the horsepower it takes to run your engine. This shows without a doubt that there is a cause and effect on making the decision to increase your oil pressure.
FOURTH PULL
CHANGE: Remove #20401 oil pan – Install #21047 oil pan
TOPIC SHOWN: Changing over from a Street/Strip oil pan to a full Drag Race oil pan with kick-out and solid-louvered tray. This oil pan also has a 5-inch deep front sump versus the 4.5-inch deep stock sump. How this works above 6,500 RPM will show the advantages between a “Street/Strip Pan” and a “Drag Race Pan.”
» Peak H.P. 993 +40
» Peak Torque 780 +16
» Average H.P. 919 +29
» Average TQ 756 +23
» Average Oil Pressure 60.1 psi +15.1
» Average Vacuum 5.02 in/hg -0.12
» “Street Price” increases $203.50
RESULTS: This test clearly demonstrates how much better a Drag Race Pan performs over 6,500 RPM and makes a big difference in the horsepower. It will also make gains at lower RPM and increase the torque, thus improving the elapsed time of any car. This 582 cubic inch engine showed that the benefits are big. However, the gains will always be proportional to the size of the stroke in the engine. The oil pressure is more stable as the oil will return to the sump area far more efficiently, and gives a much smoother pressure trace.
FIFTH PULL
CHANGE: Install 22640 Vacuum Pump System – (Remove pan evacuation system and valve covers) – Install #68356, and vacuum pump system (#22640, #63910, #22649, #22630, #64888 #97172, #63849, #85465)
TOPIC SHOWN: The gain from a three-vane vacuum pump. This is the company’s best selling vacuum pump, and is also its original design. Oil pressure changes, horsepower and torque gains, and installation were the highlights with this change. The pump was run at 50 percent of engine speed.
» Peak H.P. 1018 +25
» Peak Torque 791 +11
» Average H.P. 934 +15
» Average TQ 768 +12
» Average Oil Pressure 58.1 psi -2.0
» Average Vacuum 13.25 in/hg +8.23
» “Street Price” increases $1095.00
RESULTS: Creating more crankcase vacuum is worth power, even though we already had a Pan-E-Vac” System on it. The belt-driven vacuum pump created more vacuum, more consistently, throughout the power range (and at idle). In some cases the oil pressure will drop when this much vacuum is applied, but having an oil pump that is larger than what the system needs will often make up for the vacuum that will typically create more oil flow, and less oil pressure to read on the oil pressure gauge.
SIXTH PULL
CHANGE: Install #22642 Vacuum Pump (remove #22640 pump and bracket)
TOPIC SHOWN: The difference between a three-vane and a four-vane pump on a wet-sump engine.
» Peak H.P. 1024 +6
» Peak Torque 797 +6
» Average H.P. 941 +7
» Average TQ 774 +6
» Average Oil Pressure 60.0 psi +1.9
» Average Vacuum 16.17 in/hg +2.92
» “Street Price” increases $140.29
RESULTS: The Moroso “Enhanced” vacuum pump works better in the area of vacuum than the “Original” design Moroso Vacuum Pump. This comparison shows the gain with a few inches of vacuum. On an engine this size, making and average of 16 inches of vacuum is about as much as you would want.
SEVENTH PULL
CHANGE: #21049 oil pan and #22187 oil pump combo (remove #21047)
TOPIC SHOWN: How well the new-style Steel Oil Pan and Shrouded Oil Pump work.
» Peak H.P. 1025 +1
» Peak Torque 802 +5
» Average H.P. 956 +15
» Average TQ 775 +1
» Average Oil Pressure 66.6 psi +6.6
» Average Vacuum 16.35 in/hg +0.17
» “Street Price” increases $31.89
RESULTS: While the peak numbers aren’t that different, the average horsepower number is much higher, and shows how oil pan tray design can increase power throughout the pull, and therefore, your run. Subtle changes can garner big results in oil pan design. Notice the better oil pressure throughout, as this pull was made with seven quarts of oil.
EIGHTH PULL
CHANGE: Install #22164 Billet Oil Pump (remove oil pan and swap oil pumps)
TOPIC SHOWN: The difference between a cast pump and a billet pump, in both horsepower and oil pressure.
» Peak H.P. 1025 0
» Peak Torque 803 +1
» Average H.P. 958 +2
» Average TQ 774 -1
» Average Oil Pressure 74.3 psi +7.7
» Average Vacuum 16.50 in/hg +0.15
» “Street Price” increases $290.28
RESULTS: The power didn’t change with the oil pump swap, even though it was a High Volume vs. Standard Volume change where we saw a gain in the previous pulls. But, you will notice how good the oil pressure was with a billet oil pump versus the cast iron pump housing. This will show that with all the power we are making, a standard-volume pump will keep up with (or exceed) what the end user would want for oil pressure.
NINTH PULL
Change: #20385 Aluminum Drag Race Oil Pan (remove #21047 steel oil pan), install race pattern gasket and stud kit #38361
TOPIC SHOWN: The difference in power and oil pressure with a larger sump and bigger kick-outs. Do these enhancements really make more power?
» Peak H.P. 1027 +2
» Peak Torque 805 +2
» Average H.P. 960 +2
» Average TQ 777 +3
» Average Oil Pressure 76.1 psi +1.8
» Average Vacuum 16.48 in/hg -0.02
» “Street Price” increases $168.60
RESULTS: The aluminum oil pan is lighter, easier to work with and has the full race bolt pattern and drain-back bungs. For this test, the 582’s stroke was not showing the gains that you would see on a 4.500-inch stroke (and up) combination. The aluminum pan holds the oil pressure and works very well over 8,000 RPM, a range which is commonly seen in today’s popular bracket racing engines.
TENTH PULL
CHANGE: #22843 Vacuum Pump (remove #22642 Vacuum Pump)
TOPIC SHOWN: Installing a large vacuum pump and making a bunch of vacuum. What does it do for power and oil pressure? How much is too much?
» Peak H.P. 1023 -4
» Peak Torque 799 -4
» Average H.P. 958 -2
» Average TQ 773 -4
» Average Oil Pressure 74.9 psi -1.2
» Average Vacuum 18.15 in/hg +1.67
» “Street Price” increases $213.73
RESULTS: Making “more” vacuum isn’t going to make you more power, as this pull shows. The #22843 Pro-Mod vacuum pump takes more power to drive, and will make more vacuum. But, as with anything, it will peak out. And on many engines this size, 16 inches of vacuum is typically the highest number you would want to see. Dry-sump engines will benefit from these vacuum numbers. Even with the high vacuum numbers, the standard-volume oil pump still maintained good oil pressure.
Moroso’s engineering guys went above and beyond the call of duty in order to complete 10 dyno pulls in one day. However, everything went off without a hitch and the end result came with a mountain of data that quantified each and every change that took place. We came away with new-found respect for the practice of research and development – something Moroso Performance used liberally while building its respected legacy. Of course, on-track testing (and winning) has always been another cornerstone of this company’s overall plan. Rest assured the same degree of engineering, research and development goes into the entire product line available from the Moroso Performance Products family, which includes Competition Engineering and Moroso Wire Technologies.
SOURCE
Moroso Performance Products
80 Carter Drive, Dept. DR
Guilford, CT 06437
Domtruck- Incurable
- Date d'inscription : 27/12/2010
Re: Crankcase ventilation
autre point ; ca prends une ouverture permettant l`entrée d`air ds le système sinon ca va créer une dépression qui peut syphonner l`huile
si tes deux tubes expulsant les vapeurs sont scellés , tu n`auras pas d`entrée positive pour faire circuler les vapeurs .....
si tes deux tubes expulsant les vapeurs sont scellés , tu n`auras pas d`entrée positive pour faire circuler les vapeurs .....
BigDan- Amateur
- Date d'inscription : 26/01/2014
Re: Crankcase ventilation
BigDan a écrit:autre point ; ca prends une ouverture permettant l`entrée d`air ds le système sinon ca va créer une dépression qui peut syphonner l`huile
si tes deux tubes expulsant les vapeurs sont scellés , tu n`auras pas d`entrée positive pour faire circuler les vapeurs .....
Chu pas d'accord avec ça!
On parles pas d'un effet " balayeuse " c'est un effet vacuum faible
Contrairement à ce que certaine pensent, c'est pas mal plus propre comme système que sans...
Deux catch can pas de breathers c'est le best:
Pour ceux qui sont bons en anglais:
http://ls1tech.com/forums/generation-iii-external-engine/1054089-my-catch-can-routing-ok.html
Prenez le temps de bien lire
Domtruck- Incurable
- Date d'inscription : 27/12/2010
Re: Crankcase ventilation
Une partie du texte:
The PCV system has two main parts. 1) the clean air side, 2) the dirty air side. The clean air side connects from the valve cover to a clean air source after the MAF and only routes through a catch can IF you have two separate cans installed. The dirty side connects from the valley cover or drivers side valve cover (depending on which configuration you have) through an inline PCV valve to the catch can and then back to the intake manifold.
Your PCV system should be closed. Do not use a breather on the catch can or valve cover as it allows for unmetered air to enter the engine and makes the PCV system function improperly and less efficiently.
The intent of the PCV system is to reduce crankcase pressure manifested from blow-by during the engine cycle. Engine vacuum is much more efficient at drawing these gases out of the crankcase than venting to atmosphere. This also creates a small vacuum on the crankcase that does slightly improve ring seal and power output. The final benefit is the environment. A closed PCV system recirculates the blow-by gases rather than releasing them in the atmosphere.
The PCV system has two main parts. 1) the clean air side, 2) the dirty air side. The clean air side connects from the valve cover to a clean air source after the MAF and only routes through a catch can IF you have two separate cans installed. The dirty side connects from the valley cover or drivers side valve cover (depending on which configuration you have) through an inline PCV valve to the catch can and then back to the intake manifold.
Your PCV system should be closed. Do not use a breather on the catch can or valve cover as it allows for unmetered air to enter the engine and makes the PCV system function improperly and less efficiently.
The intent of the PCV system is to reduce crankcase pressure manifested from blow-by during the engine cycle. Engine vacuum is much more efficient at drawing these gases out of the crankcase than venting to atmosphere. This also creates a small vacuum on the crankcase that does slightly improve ring seal and power output. The final benefit is the environment. A closed PCV system recirculates the blow-by gases rather than releasing them in the atmosphere.
Domtruck- Incurable
- Date d'inscription : 27/12/2010
Re: Crankcase ventilation
pour les pompes a vacuum de char de drag
il n'y a qu'une entrée au moteur et les vapeurs
sont crachées dans un récipient
Certains mettent des gages a vacuum et regle
le vacuum a 10-12 pouces de HG le gaz au fond
il n'y a qu'une entrée au moteur et les vapeurs
sont crachées dans un récipient
Certains mettent des gages a vacuum et regle
le vacuum a 10-12 pouces de HG le gaz au fond
pp.dd- Incurable
- Date d'inscription : 02/01/2012
Re: Crankcase ventilation
BigDan a écrit:autre point ; ca prends une ouverture permettant l`entrée d`air ds le système sinon ca va créer une dépression qui peut syphonner l`huile
si tes deux tubes expulsant les vapeurs sont scellés , tu n`auras pas d`entrée positive pour faire circuler les vapeurs .....
je trouve ca logique.. Ca serais encore plus propre avec une entré d'air fraiche...
quebeker- Apprenti
- Date d'inscription : 26/01/2014
Re: Crankcase ventilation
C comme passer l'aspirateur dans la voiture
tu peux mettre le bec a 2pouces du tapis
comme tu peux le coller au point de changer le son de l'aspirateur
c a ce moment que les petites roches au fond du tapis vont venir
tu peux mettre le bec a 2pouces du tapis
comme tu peux le coller au point de changer le son de l'aspirateur
c a ce moment que les petites roches au fond du tapis vont venir
pp.dd- Incurable
- Date d'inscription : 02/01/2012
Re: Crankcase ventilation
pp.dd a écrit:C comme passer l'aspirateur dans la voiture
tu peux mettre le bec a 2pouces du tapis
comme tu peux le coller au point de changer le son de l'aspirateur
Exactement!
Le principe est pourtant simple:
Ventiler le block tout en aspirant les vapeurs néfaste sans les recycler
En ajoutant les catch can c'est plus propre pour l'environnement.
Un moteur plus propre est plus performant
Domtruck- Incurable
- Date d'inscription : 27/12/2010
Re: Crankcase ventilation
le principe est pas de ventiler le blocDomtruck a écrit:pp.dd a écrit:C comme passer l'aspirateur dans la voiture
tu peux mettre le bec a 2pouces du tapis
comme tu peux le coller au point de changer le son de l'aspirateur
Exactement!
Le principe est pourtant simple:
Ventiler le block tout en aspirant les vapeurs néfaste sans les recycler
En ajoutant les catch can c'est plus propre pour l'environnement.
Un moteur plus propre est plus performant
mais de créer un vacuum a l'interieur
pour aspirer les vapeur d'huile qui pourrait contaminer
la chambre a combustion en réussissant a passer au travers les rings.
Cette aspiration s'avere tres efficace surtout avec des segments a tres basse tension
et tres minces des moteurs de compétition
pp.dd- Incurable
- Date d'inscription : 02/01/2012
Re: Crankcase ventilation
pp.dd a écrit:
le principe est pas de ventiler le bloc
O.K!
On va arrêter d'appeler ça " Crankcase Ventilation "
Crankcase Vacuum ou Crankcase Aspiration
Pas de trouble avec ça moé
Domtruck- Incurable
- Date d'inscription : 27/12/2010
Re: Crankcase ventilation
Domtruck a écrit:pp.dd a écrit:
le principe est pas de ventiler le bloc
O.K!
On va arrêter d'appeler ça " Crankcase Ventilation "
Crankcase Vacuum ou Crankcase Aspiration
Pas de trouble avec ça moé
moé j appel sa du siphonnage de vapeur huile :balalalal:
firebuick- Incurable
- Date d'inscription : 14/12/2009
Re: Crankcase ventilation
firebuick a écrit:
moé j appel sa du siphonnage de vapeur huile :balalalal:
Cé encore pire avec ton système PCV
Domtruck- Incurable
- Date d'inscription : 27/12/2010
Re: Crankcase ventilation
Domtruck a écrit:firebuick a écrit:
moé j appel sa du siphonnage de vapeur huile :balalalal:
Cé encore pire avec ton système PCV
ouin ces système stock et ca marche mon moteur pas trop modifier moé pis tout petit :balalalal:
firebuick- Incurable
- Date d'inscription : 14/12/2009
Re: Crankcase ventilation
Tu serais surpris firebuick de voir la propreté d'un moteur qui a ce système vs PCV, même après plusieurs années d'utilisation...
Domtruck- Incurable
- Date d'inscription : 27/12/2010
Re: Crankcase ventilation
si il y a un coter qui aspire plus que l'autre, il y a pas de danger de faire entré de lexaust dans le moteur?
quebeker- Apprenti
- Date d'inscription : 26/01/2014
Re: Crankcase ventilation
pp.dd a écrit:le principe est pas de ventiler le blocDomtruck a écrit:pp.dd a écrit:C comme passer l'aspirateur dans la voiture
tu peux mettre le bec a 2pouces du tapis
comme tu peux le coller au point de changer le son de l'aspirateur
Exactement!
Le principe est pourtant simple:
Ventiler le block tout en aspirant les vapeurs néfaste sans les recycler
En ajoutant les catch can c'est plus propre pour l'environnement.
Un moteur plus propre est plus performant
mais de créer un vacuum a l'interieur
pour aspirer les vapeur d'huile qui pourrait contaminer
la chambre a combustion en réussissant a passer au travers les rings.
Cette aspiration s'avere tres efficace surtout avec des segments a tres basse tension
et tres minces des moteurs de compétition
qu'il passe par les ring ou par le carbu s"il a un pvc il me semble que ça va a la place dans la chambre a combustion
doumme- Incurable
- Date d'inscription : 06/02/2014
Re: Crankcase ventilation
quebeker a écrit:si il y a un coter qui aspire plus que l'autre, il y a pas de danger de faire entré de lexaust dans le moteur?
Absolument pas!
Ce sont des "one way valve"
Donc, pas de retour.
Domtruck- Incurable
- Date d'inscription : 27/12/2010
Re: Crankcase ventilation
doumme a écrit:
qu'il passe par les ring ou par le carbu s"il a un pvc il me semble que ça va a la place dans la chambre a combustion
Le principe de ce système est de ne pas retourner les vapeurs vers les chambres a combustion.
Domtruck- Incurable
- Date d'inscription : 27/12/2010
Re: Crankcase ventilation
salut domtruck,toi tu parle du principe avec les exhaust et celui avec pompe a vacuum
doumme- Incurable
- Date d'inscription : 06/02/2014
Re: Crankcase ventilation
doumme a écrit:salut domtruck,toi tu parle du principe avec les exhaust et celui avec pompe a vacuum
Oui!
Domtruck- Incurable
- Date d'inscription : 27/12/2010
Re: Crankcase ventilation
Ah ok ça c'est correct,moi je parlais sur un moteur normal,les vapeurs sont aspirées dans la chambre a combustion par le pvc
doumme- Incurable
- Date d'inscription : 06/02/2014
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