delete the AIR or not
Re: delete the AIR or not You will get more HP because you can block off the ports where the air is injected into the header. That way the headers can scavange better. I felt a difference when I did it. Also idled better.
Re: delete the AIR or not I have removed EGR and AIR from my car.
EGR: you need 2 blockoff plates. One on the header, one on the intake manifold. I cut mine out of 1/4" aluminum. Sealed with Permatex Copper. Works great. The whole EGR thing is in a box in my garage. The wires are hanging free.
AIR: Same deal. 2 blockoff plates. ONLY remove AIR if you have no cats.
You will not notice any "power" by removing these pieces. Their power drain is very, very minimal.
-Andrew
EGR: you need 2 blockoff plates. One on the header, one on the intake manifold. I cut mine out of 1/4" aluminum. Sealed with Permatex Copper. Works great. The whole EGR thing is in a box in my garage. The wires are hanging free.
AIR: Same deal. 2 blockoff plates. ONLY remove AIR if you have no cats.
You will not notice any "power" by removing these pieces. Their power drain is very, very minimal.
-Andrew
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Re: delete the AIR or not I took off that crap..air pump..all of it.You get lights they don't affect performance at all.I doubt you gain much if anything really..probably not measureable maybe 1 or 2 hp if you have car with egr sticking down into intake.I have ls6 intake now with no egr.You can drive the car around no problems with these things blocked off and removed.Dont' need ls1 edit.The egr system in these cars is a pos!! A stupid retarded design and a vacuum leak waiting to happen...lots of guys find the o ring falls off and goes into the engine.and the air pump only runs for like a minute so don't see how it can hurt the cats not to have one..cars never use to have air pumps..it emissions crapola..!! get rid of it..mines all in a box..no inspections so far here.
TECH Apprentice
Joined: Aug 2002
Posts: 362
Likes: 0
From: Maple Grove MN
Re: delete the AIR or not On my stock exhaust manifolds there were three connections for that crap plus the one that goes in the intake. When i got headers there were two connections on them. I blocked off those connections and plugged the hole in the intake manifold. Did I miss anything? What was that third one? It went in lower down on the passenger side manifold. Was that the air connection? I think its still hanging there. Would that be a bad thing? <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
TECH Apprentice
Joined: Aug 2002
Posts: 362
Likes: 0
From: Maple Grove MN
Re: delete the AIR or not I took the metal hoses that connected to the original exhaust manifolds, cut them off, smashed the end flat, and bent them over. Then just connected them to the header. Cheap easy blockoff and it doesnt leak. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
Justin
Justin
TECH Regular
Joined: Mar 2002
Posts: 433
Likes: 0
Re: delete the AIR or not </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"> AIR: Same deal. 2 blockoff plates. ONLY remove AIR if you have no cats.
</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I thought AIR was only to boost catalytic process during start up when it's running rich and to get the cats to operating temp faster. Are cats taking damage without AIR during start up ?
</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I thought AIR was only to boost catalytic process during start up when it's running rich and to get the cats to operating temp faster. Are cats taking damage without AIR during start up ?
Re: delete the AIR or not f.y.i the egr sucks exhaust out of the manifold and puts it in the intake at part throttle to build up pressure and it supposidly helps gas mileage, the main restriction caused by it is the tube sticking down in the intake so i would keep it but the air is not needed.
