Egr And A.i.r?
Thread Starter
Launching!
Joined: Feb 2005
Posts: 253
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From: Los Angeles, CA
Egr And A.i.r? I was wondering is there any reason to keep the EGR or the AIR system.
I have the pacesetters that have the conections for them but are those components needed?
or should I send them back before I install them and get the off road ones that do not have either of them?
Thanks
Ed
I have the pacesetters that have the conections for them but are those components needed?
or should I send them back before I install them and get the off road ones that do not have either of them?
Thanks
Ed
Teching In
Joined: Sep 2005
Posts: 23
Likes: 0
Getting rid of the EGR does nothing except lower your gas mileage. Most people delete it but it is a waste of time because there is no gain what soever to deleting. This is because the EGR is completely by passed at WOT. I say dont get rid of the EGR.
http://www.misterfixit.com/egrvalve.htm
The automotive engineers figured that they needed to do something to lower the peak combustion temperatures which only occurred under certain high load driving conditions. They figured they could do so at the expense of power and fuel economy but what the heck, ya can't have everything! If they could only add something to the combustion chamber that would act like sort of a fire extinguisher to cool the combustion temperatures that would do it.
So they invented a way to allow some very inert gas to get back into the combustion chamber only when needed. They needed a source of this gas - it wasn't air, cuz that contains oxygen and nitrogen which caused the problem in the first place. So they chose carbon dioxide. Where to get a supply of carbon dioxide . . . ??? Hmmmm, how about the exhaust system? That is mainly carbon dioxide and water (plus a zillion other noxious chemicals) Suppose we allow some of the exhaust gas to get back into the intake manifold under strict control and only when we need it? That would cool the combustion chamber and prevent the formation of the NoX. Maybe we should call it recirculated exhaust gas (REG??). But a guy named Reginald voted no cuz he didn't want his name associated with a car part, so they called it exhaust gas recirculation (EGR) since there was nobody around with that name.
GET RID OF IT...............
The automotive engineers figured that they needed to do something to lower the peak combustion temperatures which only occurred under certain high load driving conditions. They figured they could do so at the expense of power and fuel economy but what the heck, ya can't have everything! If they could only add something to the combustion chamber that would act like sort of a fire extinguisher to cool the combustion temperatures that would do it.
So they invented a way to allow some very inert gas to get back into the combustion chamber only when needed. They needed a source of this gas - it wasn't air, cuz that contains oxygen and nitrogen which caused the problem in the first place. So they chose carbon dioxide. Where to get a supply of carbon dioxide . . . ??? Hmmmm, how about the exhaust system? That is mainly carbon dioxide and water (plus a zillion other noxious chemicals) Suppose we allow some of the exhaust gas to get back into the intake manifold under strict control and only when we need it? That would cool the combustion chamber and prevent the formation of the NoX. Maybe we should call it recirculated exhaust gas (REG??). But a guy named Reginald voted no cuz he didn't want his name associated with a car part, so they called it exhaust gas recirculation (EGR) since there was nobody around with that name.
GET RID OF IT...............
Teching In
Joined: Sep 2005
Posts: 23
Likes: 0
Why? The article never gave a reason to get rid of it, actually it mentions replacing it with an aftermarket one. I have never heard of anyone gaining anything from removing it, and I have read articles that state removing it will hurt your gas mileage. The EGR is bypassed at WOT so you are not loosing power in the 1/4 mile. The only thing it will affect is daily driving. Other people have said that removing it gives the engine bay a cleaner look, this is a fallacy as well because the EGR is at the back of the intake manifold and not easily seen. The only viable reason I can see to remove it is if it fails and you do not want to replace it, but removing it before then is a waste of gas mileage and time. This is my current opinion and suggestion to edlt1, slowmofo if you can find more edvidence to support removing it I invite you to share.
