LT1-LT4 Modifications 1993-97 Gen II Small Block V8

EGR Delete

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Old 12-11-2006 | 12:57 PM
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Default EGR Delete

While an am doing my H/C i decided to delete my EGR apart from removing the pipe and the valve. Do i just remove the solenoid to and plug the hole in the D-side of the intake manifold.
Old 12-11-2006 | 01:04 PM
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Pretty much..and block off the spots on back of the Intake. You can clip the Pigtail for that also.
Old 12-11-2006 | 04:07 PM
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Removing EGR and AIR is good to clean up the engine bay, also to lighten it up, but it doesnt help hp. good luck!!
Old 12-11-2006 | 05:45 PM
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I know it doesnt help HP but I have it all off and i am to lazy to put somthing back on that dooesn't have to be lol. I also like the cleaner look I am trying to make my engine bay a clean as possible having only the nessesity in view thx for the help tho.
Old 12-11-2006 | 08:08 PM
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Originally Posted by BlackScreaminMachine
Removing EGR and AIR is good to clean up the engine bay, also to lighten it up, but it doesnt help hp. good luck!!
It might not help HP, but most of the Cammed LTX's benefit without having it. I was running it for a while with my Hot Cam, the EGR was getting wrong readings, and it lead to a blown Head Gasket. I removed it, and put in the Racing LT's(non-emissions), and haven't had a problem since. Runs like a raped ape for what's in it.
Old 04-17-2007 | 09:57 PM
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On my 1993 LT1 what is really involved in tearing it off? I know what is the EGR stuff but on the intake right next to the EGR setup there is another huge deal with tubes going to it. It has a bunch of hoses (about the size of a garden hose) going from it that come up to the front of the motor and attach at a junction block of some sort. That part of the EGR system too? Anyone know of a writeup of everything to remove and tips to blocking stuff off?
Old 04-17-2007 | 10:10 PM
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You have pics of all that.. I have an idea, but I want to see it to make sure..
Old 04-17-2007 | 10:28 PM
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The black block in the lower right of the picture

Old 04-17-2007 | 11:09 PM
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That's the A.I.R. junk, that's what I thought you were talking about, just to make sure I asked. Chuck that **** out...
Old 04-17-2007 | 11:10 PM
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Originally Posted by the_merv
That's the A.I.R. junk, that's what I thought you were talking about, just to make sure I asked. Chuck that **** out...
You just make your own block off plates for the A.I.R. and EGR holes on the back of the intake? What the A.I.R. stand for anyways? I know EGR is Exhaust gas recirculation
Old 04-18-2007 | 05:39 PM
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To The Top! Anyone have a procedure or a picture of all the parts/lines that need to come off?
Old 04-18-2007 | 06:17 PM
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You don't need block off plates for the AIR, just plug off the little connection on the Intake and you are good. Looks like everything else is gone out of it, you putting on LT's?
As far as the EGR, you take all the junk off of the back and put on block off plates there. Then you remove the little Solenoid for it, and plug off the Vacuum connection on the Intake that is right there.
Old 04-18-2007 | 07:27 PM
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Midlength headers to be exact.
Old 04-18-2007 | 07:30 PM
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Do they have the provisions for A.I.R. and EGR?
Old 04-18-2007 | 10:33 PM
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Originally Posted by the_merv
Do they have the provisions for A.I.R. and EGR?
Yeah, they are equipted for EGR.
Old 04-19-2007 | 12:11 AM
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You can get block off plates for the EGR openings on the back of the intake on EBAY or you can just make your own. All you do is unbolt the solenoid and tubing and plug off the holes where they went. The computer will throw a code unless you have the EGR deleted out of the computer and in my case it still throws a quad driver code. Im currently researching how to get rid of that code.
Old 04-19-2007 | 07:05 AM
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You can change it in the PCM.
Old 04-19-2007 | 09:15 AM
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Yea, block it off, and have it tuned out. If those Headers don't have the A.I.R. crap in them, they are going to look real nice on there.



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