Eliminate EGR and AIR?
Thread Starter
Joined: Oct 2003
Posts: 1,164
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From: Frankenmuth, MI
Eliminate EGR and AIR? I am doing an ls6 intake swap right now.. and i plan on making a small steel plate to block it off on my passenger side header.. but i was wondering if it is worth blocking off the check air valves or not? What would be the gains or benefits from it? I have heard of people blocking them off and drilling small holes in them? I don't really get the whole concept.. What else would i need to remove if i blocked the check air valves off? The vacuum line? Or is there more? Any help is greatly appreciated.. working on the install right now.. trying to make some decisions! thanks 
www.ls1camaro.net has a write up on how to go about removing everything. I'm too lazy right now to find the direct link, but it's over there.
TECH Veteran
Joined: Aug 2003
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From: Kent WA
There's no real benefit to removing the AIR pump other than taking a little bit of weight out (not a whole lot, less than 10lbs), but the biggest reason to do it is to clean up the engine bay... makes for changing the spark plugs a little easier. 
Thread Starter
Joined: Oct 2003
Posts: 1,164
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From: Frankenmuth, MI
alright i'll probabaly buy a block off kit for the EGR and AIR then.. Yea i'll sell you my Egr Tube when i'm all done.. just send me and PM and i'll remember for you.. Thanks
TECH Resident
Joined: Aug 2003
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From: Central, FL
I blocked both of those off... and made a aluminum plate to go over the intake and tapped a small hole for the screw to hold it to the intake along with RTV sealer. my headers are race headers, not even provisions for the EGR or AIR
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Take the EGR off of cammed cars, do not take off AIR at all. Unless you are not running catalytic converters. If you are running cats, they will last longer with the AIR system, and you will have better emmissions at startup. If you have a non-cammed car, leave EGR because it cools the cylinders and allows more spart advance at low throttle. On cammed cars you already have exhaust reversion diluting the mixture, so EGR just hurts and needs to be removed.
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Verdad Gallardo Thread Starter
Joined: Oct 2003
Posts: 1,164
Likes: 2
From: Frankenmuth, MI
Well i removed the cats on my car..and have a cam.. so should i remove the AIR and EGR then? I made the block of plates last night for the 3 plugs.. thanks for the replies
Originally Posted by ninobrn99
hmm i have cats on my TD's, but no AIR provisions..do i need to keep the AIR??
I think it was just to quiet it down..besides, Ill just buy them one at a time and replace them later on No block off plates on the headers would be an exhaust leak. No block off plate on the intake manifold can cause unwanted/dirty air to enter and unwanted air to escape.
Last edited by Keenov; Nov 23, 2004 at 05:44 AM.
I just cut the tubes off of the origianl flanges for the egr stuff. Then I TIG welded a short tapered head stainless bolt in the holes were the tubes entered. I bought a plate for the intake, but they are just a plate with a bolt hole in them that you seal with silicone. Should of just made one
use an adjustable freezeplug for the intake manifold. looks like to washers connected together with a bolt and a big piece of rubber between them. turn the bolt, expand the rubber, and it seals in intake manifold.
