Anyone have a writeup for the exact steps needed? I know about the block offs but what happens to the vaccume line on the egr??? Need to do this before engine goes back in. Help... thx

 

If you're totally removing the EGR, you'll take the EGR valve off altogether and put on the blockoff plate. The vacuum line can be removed and the port capped or plugged off.

 

don't mean to hijack the thread but any of you guys have any idea about what (if any) performance gains are achieved by removing the EGR? (and other emmisions stuff for that matter)

 

I havent heard of any "performance" gains with this mod. All this basically does is gives you a better chance of your intake manifold from leaking. Plus it cleans up the engine bay.

Mine is done, done, and done.

 

No gains from removing any emiisions stuff, other than losing the weight of the items. On a stock engine, you may be doing yourself a disservice by removing the EGR, as it helps to hold down combustion temps to prevent harmful detonation.

 

shoebox, you made a valid point but you say on a stock engine it is good to keep it on but on a modded engine wouldn't it also help? I just thought it heats up the intake and down here in Fl it is always hot so I thought it would be good to remove.

 

i have a question also. when you do the egr delete do you leave the little box at the back of the intake with the vaccum lines going to it or take it off. leave it plugged up or unplug it?

 

you shoudl be able to take that whole egr black box off and end up with just a vacuum cap on the intake manifold where it ends up.

 

Again any write ups??? I forgot about the box. Since engine is still apart.

 

the egr black box is the egr solenoid, and yes you can remove all of it as mentioned.

There are gains noted other then weight and cleaning up the engine bay as shown on www.mycamaroz28.homestead.com. The egr block off plates are a great deal . Mine had directions included, but it's a no-brainer once your in there.

"Benifits include:
1) Repairs stumbling problems at idle from defective EGR.
2) Keeps engine and intake MUCH cleaner due to not recyling burnt exhaust gases.
3) Cleans up engine bay clutter.
4) Makes header changes/intallations easier since there are less components to re-attach/remove."

Shoebox does have a point, if there is nothing wrong with your EGR circuit, then you can leave it alone. On the other hand, this is one more item that is often troublesome and causes more stumbling issues and drivability issues then not. Removing it will make less troubleshooting issues. In our cars, it seems that its either the damn optisparks giving problems or an egr issue. I see these posts all the time.

The EGR is disabled at higher RPM's so there is NO chance of detonation issues from the EGR. The EGR may help detonation at low RPM's only during bogging situations. It is not good to bog the engine at any time. i.e. driving up a hill in 4th when you should be in 3rd etc.

 

The problem with knock when yuo remove the egr is because by programming there is an advance when the egr kicks in.

 

#1 Replacing the valve will also take car of a defective one.

#2 As dirty as the inside of an LT1 intake already is, not sure how you could tell.

#3 Baffles me. The EGR valve is so hidden, how can it be a source of clutter? The only thing it obscures is the oil pressure sensor.

#4 Can't disagree with that statement.

Removing the valve may cause your computer to complain and set DTCs (especially OBD-II). Removing the solenoid will most times cause DTCs as well. Re-programming can disable the codes.

When you know more about it, you are better equipped to make a decision on whether to keep or remove it.

Zrag, I mention stock engine, because engines with aftermarket cams having more overlap cause a "built in" EGR function (same reasoning the LT4 did not have the EGR).

 

Im removing the EGR on my 94 LT1 because I can: New Zealand doesn't have any emmisions laws and I am having a set of custom headers made so its just easier to get rid of it (also gettin rid of the cat, any hp advantage to this?) Thanks for the info though guys.

 

There is no HP advantage

 

Steve.... this is one case where I think you are off base. Yes... it helps sell your EGR blockoff plates, but most of what you post is speculation and stretching most points. In my opinion, rather than go into excruciating detail and respond to what you said, I'll just suggest that people listen to Shoebox. 5#?? Youve got to be kidding.