Pcv & air pump
Thread Starter
Advanced
Joined: Nov 2008
Posts: 64
Likes: 0
From: Oklahoma City Oklahoma
Pcv & air pump
I was just in LS1TECH.COM , and all the LS1 Cam. & Firechckn guys were talking about removing the systems. ? LS1 is an LS1 right so would it be allright to remove from vette also?
Thanks
Thanks
Team Owner
Joined: Sep 2001
Posts: 23,283
Likes: 906
From: Lake Elsinore, CA
The AIR system is transient in that it only operates for a couple of minutes on cold start to reduce emissions. Eliminating that does not affect normal operation of the engine.
On the other hand, the PCV system is important to the health of the engine. From a ref.
"During normal compression stroke, a small amount of gasses in the combustion chamber escapes past the piston. Approximately 70% of these "blow-by" gasses are unburned fuel (hydrocarbons) that can dilute and contaminate the engine oil, cause corrosion to critical parts, and contribute to sludge build up. At higher engine speeds, blow-by gasses increase crankcase pressure that can cause oil leakage from sealed engine surfaces."
"The purpose of the Positive Crankcase Ventilation (PCV) system is to remove these harmful gasses from the crankcase before damage occurs and combine them with the engine's normal incoming air/fuel charge."
Also, the performance of the engine is affected because the extra air flow the PCV provides is factored into the air/fuel metering scheme so the engine will run richer with the PCV eliminated.
If the PCV is eliminated and simply plugged off, the contaminants will foul the oil in the crankcase while the excess pressure will weaken the engine seals. If it's simply vented to atmosphere, some contaminates will remain and what gases escape will simply pullote the atmospere and must be accounted for in the air/fuel mixture.
On the other hand, the PCV system is important to the health of the engine. From a ref.
"During normal compression stroke, a small amount of gasses in the combustion chamber escapes past the piston. Approximately 70% of these "blow-by" gasses are unburned fuel (hydrocarbons) that can dilute and contaminate the engine oil, cause corrosion to critical parts, and contribute to sludge build up. At higher engine speeds, blow-by gasses increase crankcase pressure that can cause oil leakage from sealed engine surfaces."
"The purpose of the Positive Crankcase Ventilation (PCV) system is to remove these harmful gasses from the crankcase before damage occurs and combine them with the engine's normal incoming air/fuel charge."
Also, the performance of the engine is affected because the extra air flow the PCV provides is factored into the air/fuel metering scheme so the engine will run richer with the PCV eliminated.
If the PCV is eliminated and simply plugged off, the contaminants will foul the oil in the crankcase while the excess pressure will weaken the engine seals. If it's simply vented to atmosphere, some contaminates will remain and what gases escape will simply pullote the atmospere and must be accounted for in the air/fuel mixture.
Premium Supporting Vendor
Joined: Oct 2004
Posts: 36,838
Likes: 438
From: Manassas Park VA
St. Jude Donor '07-'08,-'13-'14, '16-'17
The AIR system is transient in that it only operates for a couple of minutes on cold start to reduce emissions. Eliminating that does not affect normal operation of the engine.
On the other hand, the PCV system is important to the health of the engine. From a ref.
"During normal compression stroke, a small amount of gasses in the combustion chamber escapes past the piston. Approximately 70% of these "blow-by" gasses are unburned fuel (hydrocarbons) that can dilute and contaminate the engine oil, cause corrosion to critical parts, and contribute to sludge build up. At higher engine speeds, blow-by gasses increase crankcase pressure that can cause oil leakage from sealed engine surfaces."
"The purpose of the Positive Crankcase Ventilation (PCV) system is to remove these harmful gasses from the crankcase before damage occurs and combine them with the engine's normal incoming air/fuel charge."
Also, the performance of the engine is affected because the extra air flow the PCV provides is factored into the air/fuel metering scheme so the engine will run richer with the PCV eliminated.
If the PCV is eliminated and simply plugged off, the contaminants will foul the oil in the crankcase while the excess pressure will weaken the engine seals. If it's simply vented to atmosphere, some contaminates will remain and what gases escape will simply pullote the atmospere and must be accounted for in the air/fuel mixture.
On the other hand, the PCV system is important to the health of the engine. From a ref.
"During normal compression stroke, a small amount of gasses in the combustion chamber escapes past the piston. Approximately 70% of these "blow-by" gasses are unburned fuel (hydrocarbons) that can dilute and contaminate the engine oil, cause corrosion to critical parts, and contribute to sludge build up. At higher engine speeds, blow-by gasses increase crankcase pressure that can cause oil leakage from sealed engine surfaces."
"The purpose of the Positive Crankcase Ventilation (PCV) system is to remove these harmful gasses from the crankcase before damage occurs and combine them with the engine's normal incoming air/fuel charge."
Also, the performance of the engine is affected because the extra air flow the PCV provides is factored into the air/fuel metering scheme so the engine will run richer with the PCV eliminated.
If the PCV is eliminated and simply plugged off, the contaminants will foul the oil in the crankcase while the excess pressure will weaken the engine seals. If it's simply vented to atmosphere, some contaminates will remain and what gases escape will simply pullote the atmospere and must be accounted for in the air/fuel mixture.
Peace
Chip
__________________
..................Click for
..................Click for
Safety Car
Joined: Jul 2004
Posts: 3,904
Likes: 29
From: Vancouver Washington
