I know my EGR is shot. So I'm just going to block it off completly. Where do I get plates? How many plates do I need? 2 or 3? What do I do with the solenoid once, I've blocked off the valve and feed tube? And what do I do with the feed tube coming off the exhaust manifold?

 

For the 2 blockoff plates - Here's one of the board members sites - Steve10

He can hook you up.

http://www.mycamaroz28.homestead.com/

You can take all the piping off and plug the exhaust manifold holes with 22mm plugs - you can find them at Napa.

 

You can also make a pair of block off plates pretty easy for the EGR tube to the manifold connection. I used a piece of 1/8" thick 1" wide piece of aluminum stock (Home Depot) I just cut it down and rounded the corners and drilled the holes. I did the same for the manifold connection. For the larger hole I just bought that block off plate from my local dealer, it was like $6.

 

Thanks for the plug speedmiser.

Sounds like your using emission legal headers. You need to either make or purchase 3 plates. If you have the material, knowhow and time, make them yourself. There is nothing more gratifying then creating something yourself. If you have to go out and purchase the material and supplies attempting to save money, I think you'll find it will end up costing more money then purchasing a pre-manufactured kit.

I would not recommend using more ductile grade alumiums i.e. 3003 etc found at home depot and the like stores. They can deform rather easily. This is not so much of a problem with the intake plates, but the header plate due to the way it is fastened. We only use 6061-T6 hardened grade aluminum.

I would also recommend NOT using any type of gasket material on the 1 bolt header connection. Since this connection was intended for use with a compression type fitting, blocking it off with a gasket will lead to failure if not imediately, but over time. Use high temp RTV sealant for this fitting. For the rest of the fittings, you can either re-use the stock gaskets or since your using RTV already for the header plate, use it for the rest of the plates. RTV is nice as it will seal around imperfections in the mating surfaces easier.

The mating surface of the header EGR tube is not designed for a gasket. In fact if one is using a gasket, it is one that is "homemade".

Directions are included with kits. Solenoid and all connecting tubing can be removed.

Hope this helps,

Steve

 

Is it really necessary to remove the tube from the header to the back of the intake to block off the system? I just picked up one of the OEM block off plates for the EGR valve itself. Is there any other reason besides heat being transferred up to the intake?

I didn't know there was another kit available, looks nice and complete though.

 

It is not absolutely necessary to remove the tube though it is a good idea.

Since the tube is connected to the rear of the intake, heat transfer will occur between the hot gases and the cooler intake.

It has been said that the hot temperature tube leads to increase % of intakes leaking (infamous manifold leak). The removal of the tube may lessen this occurance.

Another benfit of removing the tube is it makes header replacement/removal much easier not to mention cleaning any clutter up in the engine bay is always a good thing.

Do you have to do it over again...I'd say no...but the next time your back there, I would remove those parts and replace them with a few plates. We actually have a kit specific for guys like you whom have purchased the GM plate not knowing there were other ones out there...It is not listed on our website, though it is called "LT1-TUB". It contains the two plates that you would need to remove the convoluted tube....just not the egr plate itself as you have already purchased that part.

Hope this helps,

Steve

 

And the EGR solenoid? Unglug it?

 

Steve sent ya an email.

 

The M22 plugs plug the AIR fittings in the exhaust, not the EGR...

 

He obviously knows that, why would he post that you can get the M22 bolts at napa and the EGR plates from steve?

 

So whats the difference between the 2 plate kit, and the 3 plate kit. Whats the extra plate for?

 

Two plate blocks off the two holes in the intake, the 3rd plate blocks off the hole caused by removing the tube in the header/manifold. So if you have stock manifolds go with kit LT1-COM which is the 3 peice kit. If you have NO emissions headers purchase just the 2 plate kit.

 

Q: But what in the heck does the AIR stuff have to do with the EGR?

A: NOTHING.

Just more confusion...

 

"He obviously knows that, why would he post that you can get the M22 bolts at napa and the EGR plates from steve?"


I posted in reply to this confusing statement:

"You can take all the piping off and plug the exhaust manifold holes with 22mm plugs - you can find them at Napa."

'22MM plugs' have nothing at all to do with EGR system..
They plug the AIR pump fittings on the exhaust manifolds..

Let's keep discussion of the EGR and AIR systems seperate, or at least say 'to plug the AIR fittings, use 22 MM plugs' etc....
I posted to avoid further confusion..
Even if the POSTER KNEW the difference, anyone reading it to learn about it may not understand this..

 

Gotcha, yeah the egr/air discussions can get kinda confusing.