EGR and Smog System Removal
EGR and Smog System Removal
(OP)
For the sake of engine bay access, as well as minor weight reduction, I'm about to delete my smog system.
This is on a Ford 5.0L. The plan is to cap off any vacuum lines, plug the hole in the back of each cylinder head, plug the tube on the H-pipe, close off the egr hole on the egr spacer in the intake system, then finally use an egr eliminator in the connector to remove the CEL. Unfortunately there will be a constant code saying the egr is closed, but at least the CEL will be off.
I had a few questions, though.
I've heard that because there is no more inert exhaust gas entering the intake system and as a result not entering the combustion chamber, the combustion chamber temperatures will rise as there will be more oxygen in the cylinders. This only happens during casual driving as the egr is designed to close at WOT. Does anyone have an idea of how much this will make combustion temperatures rise? My car is exempt from emissions, but will the higher emission levels due to higher combustion chamber temps affect performance?
I know the basics about this, but I'd love to know what exactly will happen and how it will exactly affect driveability. This car is basically a toy that I drive to work on nice days, so it doesn't need to be too practical.
This is on a Ford 5.0L. The plan is to cap off any vacuum lines, plug the hole in the back of each cylinder head, plug the tube on the H-pipe, close off the egr hole on the egr spacer in the intake system, then finally use an egr eliminator in the connector to remove the CEL. Unfortunately there will be a constant code saying the egr is closed, but at least the CEL will be off.
I had a few questions, though.
I've heard that because there is no more inert exhaust gas entering the intake system and as a result not entering the combustion chamber, the combustion chamber temperatures will rise as there will be more oxygen in the cylinders. This only happens during casual driving as the egr is designed to close at WOT. Does anyone have an idea of how much this will make combustion temperatures rise? My car is exempt from emissions, but will the higher emission levels due to higher combustion chamber temps affect performance?
I know the basics about this, but I'd love to know what exactly will happen and how it will exactly affect driveability. This car is basically a toy that I drive to work on nice days, so it doesn't need to be too practical.
Anthony Deramo
American Bridge Company





RE: EGR and Smog System Removal
I'll put my evil hat on and say 43 degrees.
Now what will you do with that information?
Cheers
Greg Locock
SIG:Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips.
RE: EGR and Smog System Removal
Anthony Deramo
American Bridge Company
RE: EGR and Smog System Removal
weight reduction from EGR removal.. ha ha
RE: EGR and Smog System Removal
Anthony Deramo
American Bridge Company
RE: EGR and Smog System Removal
Seriously if the EGR is closed at WOT, how does removing it result in performance gains. It does not weigh much, it does reduce NOxs and I am told it improves drive ability and fuel efficiency. It also takes very little space.
Regards
Pat
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RE: EGR and Smog System Removal
Anthony Deramo
American Bridge Company
RE: EGR and Smog System Removal
How often do you plan to change the spark plugs in the interim?
Plug changing a PITA? Try one of the newer V-6 or V-8 ! Besides, I changed the plugs in a 5.0 '96 Ford F 250 and it "wern't so bad"!
Rod
RE: EGR and Smog System Removal
Anthony Deramo
RE: EGR and Smog System Removal
Cheers
Greg Locock
SIG:Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips.
RE: EGR and Smog System Removal
Anthony Deramo
RE: EGR and Smog System Removal
RE: EGR and Smog System Removal