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SN95 Cobras
EGR Removal process, need help.
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<blockquote data-quote="96S/Cobra" data-source="post: 16581382" data-attributes="member: 60106"><p>Warning....long winded post ahead.</p><p></p><p>While I can't provide you with a pictorial overview of the process (which I know is what you are asking for), know going in that a DIY'er like yourself can undertake the process of eliminating the EGR and smog pump without much trouble. I installed the same ceramic LT's and O/R H-pipe on my car probably 12+ years ago, and I deleted the EGR and smog pump [which if I recall is actually called the secondary air injection (SAI) pump which is located in the passenger fender] at the same time as well.</p><p></p><p>At the time I did all of this, I was unable to find "caps" that would fit the thread of the male ports on the LT's. So I ended up welding up the ports on the LT's to close them up. All of the tubes that ran to and from these ports on the factory manifolds and associated pieces from the front of the engine will be removed (I'm sorry I can't remember the exact names of these items). On the drivers side of the intake you will remove the EGR. I believe there is also a vacuum port on the intake associated with the EGR that will need to be capped with a rubber cap so there will not be any vacuum leaks. You will need an EGR block off plate once you remove the EGR from the intake. I don't know if you can buy one, or you can make your own using a cardboard template and transfer that to a small piece of aluminum and cut it out. I decided to cut the whole vacuum port and EGR piece off of my intake, have the two holes welded up, smoothed over, and then had the intake powder coated. This makes everything look much better, but this may not be possible in your particular situation.</p><p></p><p>Somewhere I have pictures the process of cutting off these items from the intake and having it powder coated, but I'm not too sure if I can find them as it has been so long ago.</p><p></p><p>I don't remember it being too much trouble removing the secondary air injection from the fender. Just remove the passenger front wheel and inner fender liner. I believe there will be an electrical connection or two that will just be left unused inside the fender. The tubes, etc. from this pump will all just be removed.</p><p></p><p>I feel like I had to go to the local auto parts store and buy an assortment pack of rubber caps. I believe there were a few small ports that needed to be capped so there would be no vacuum leaks once everything was removed from the car. Now exactly where these caps had to be put is something I can't recall. But it should be self explanatory that once the EGR and SAI pump is removed, any and all remaining ports associated with these two items would need to be capped/plugged so there are no vacuum leaks.</p><p></p><p>Again, I did all of this MANY years ago, so I'm trying to go off of memory here. But I'm also trying to reassure you that if you are handy enough to work on your own car, you will be capable enough to figure out what to cap/plug once all of the EGR and SAI associated pieces are removed from your car.</p><p></p><p>Just a thought, but when you are removing your factory manifolds and replacing them with your new LT's, you may want to think about installing/upgrading the motor mounts. Now would be the time to do so.</p><p></p><p>Last piece of info that you asked about....I cannot confirm the decrease in fuel mileage once these items are removed. There is hardly anything stock remaining on my car, so checking fuel mileage through the years as I improved/upgraded/changed things was not something I ever worried about.</p><p></p><p>Good luck!</p></blockquote><p></p>
[QUOTE="96S/Cobra, post: 16581382, member: 60106"] Warning....long winded post ahead. While I can't provide you with a pictorial overview of the process (which I know is what you are asking for), know going in that a DIY'er like yourself can undertake the process of eliminating the EGR and smog pump without much trouble. I installed the same ceramic LT's and O/R H-pipe on my car probably 12+ years ago, and I deleted the EGR and smog pump [which if I recall is actually called the secondary air injection (SAI) pump which is located in the passenger fender] at the same time as well. At the time I did all of this, I was unable to find "caps" that would fit the thread of the male ports on the LT's. So I ended up welding up the ports on the LT's to close them up. All of the tubes that ran to and from these ports on the factory manifolds and associated pieces from the front of the engine will be removed (I'm sorry I can't remember the exact names of these items). On the drivers side of the intake you will remove the EGR. I believe there is also a vacuum port on the intake associated with the EGR that will need to be capped with a rubber cap so there will not be any vacuum leaks. You will need an EGR block off plate once you remove the EGR from the intake. I don't know if you can buy one, or you can make your own using a cardboard template and transfer that to a small piece of aluminum and cut it out. I decided to cut the whole vacuum port and EGR piece off of my intake, have the two holes welded up, smoothed over, and then had the intake powder coated. This makes everything look much better, but this may not be possible in your particular situation. Somewhere I have pictures the process of cutting off these items from the intake and having it powder coated, but I'm not too sure if I can find them as it has been so long ago. I don't remember it being too much trouble removing the secondary air injection from the fender. Just remove the passenger front wheel and inner fender liner. I believe there will be an electrical connection or two that will just be left unused inside the fender. The tubes, etc. from this pump will all just be removed. I feel like I had to go to the local auto parts store and buy an assortment pack of rubber caps. I believe there were a few small ports that needed to be capped so there would be no vacuum leaks once everything was removed from the car. Now exactly where these caps had to be put is something I can't recall. But it should be self explanatory that once the EGR and SAI pump is removed, any and all remaining ports associated with these two items would need to be capped/plugged so there are no vacuum leaks. Again, I did all of this MANY years ago, so I'm trying to go off of memory here. But I'm also trying to reassure you that if you are handy enough to work on your own car, you will be capable enough to figure out what to cap/plug once all of the EGR and SAI associated pieces are removed from your car. Just a thought, but when you are removing your factory manifolds and replacing them with your new LT's, you may want to think about installing/upgrading the motor mounts. Now would be the time to do so. Last piece of info that you asked about....I cannot confirm the decrease in fuel mileage once these items are removed. There is hardly anything stock remaining on my car, so checking fuel mileage through the years as I improved/upgraded/changed things was not something I ever worried about. Good luck! [/QUOTE]
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EGR Removal process, need help.
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