Need help/ question
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New User
Joined: Dec 2010
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Need help/ question
Im replacing my 1 barrel carb to a 2 barrel, along with a new intake. while im doing this, i was wondering if it would be possible to take off the air quality control part, that that is between the intake and the carb( sorry i have no clue what this thing is called). I live in Tennessee and its the only state that doesnt require this part to be on vehicles. could some one please tell me what this part is called, and how to remove it?? THANKS
-Nathan
-Nathan
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Joined: Dec 2007
Posts: 7,987
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From: Boise, Idaho
Does it have a pipe coming from the rear of the exhaust manifold and up into this part you're talking about?
If so, it sounds like you're talking about the EGR spacer / EGR Valve.
IF you're able to, that's one of the few emissions parts that can actually increase performance/gas mileage. So if you don't need to remove it, and it's working, leave it be.
If not, though, just remove the pipe from the exhaust manifold, plug it up, and then remove the EGR spacer.
What intake are you installing?
If so, it sounds like you're talking about the EGR spacer / EGR Valve.
IF you're able to, that's one of the few emissions parts that can actually increase performance/gas mileage. So if you don't need to remove it, and it's working, leave it be.
If not, though, just remove the pipe from the exhaust manifold, plug it up, and then remove the EGR spacer.
What intake are you installing?
Elder User
Joined: Jun 2010
Posts: 509
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From: Casper, Wyoming
Im replacing my 1 barrel carb to a 2 barrel, along with a new intake. while im doing this, i was wondering if it would be possible to take off the air quality control part, that that is between the intake and the carb( sorry i have no clue what this thing is called). I live in Tennessee and its the only state that doesnt require this part to be on vehicles. could some one please tell me what this part is called, and how to remove it?? THANKS
-Nathan
-Nathan
If you replace the carb AND intake, you'll have to remove it, but it won't matter, since the new carb will need rejetting anyway.
Moderator
Joined: Dec 2007
Posts: 7,987
Likes: 104
From: Boise, Idaho
Ah, if that's the case, you won't be able to use it without some serious, serious work.
Just remove the pipe and plug the hole in the exhaust manifold. The EGR spacer / EGR valve won't fit onto your new setup anyway.
Just remove the pipe and plug the hole in the exhaust manifold. The EGR spacer / EGR valve won't fit onto your new setup anyway.
Moderator
Joined: Dec 2007
Posts: 7,987
Likes: 104
From: Boise, Idaho
No, about the most it'd do is possibly making it ping under heavy load with the stock carburetor, and make it run lean.
With an aftermarket carb and intake, you won't have any issues.
As for plugging it, IF you can get it out, take the pipe down to a plumbing store and match it with an end cap. I got one for mine for less than a dollar. Most likely, though, its so rust welded in there that it may be easier to just cut the pipe, fold it over, and weld it (or have it welded) shut.
With an aftermarket carb and intake, you won't have any issues.
As for plugging it, IF you can get it out, take the pipe down to a plumbing store and match it with an end cap. I got one for mine for less than a dollar. Most likely, though, its so rust welded in there that it may be easier to just cut the pipe, fold it over, and weld it (or have it welded) shut.
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Joined: Dec 2007
Posts: 7,987
Likes: 104
From: Boise, Idaho
Most carburetors will need to be calibrated to your engine's specific needs.
Many of them have different jets you change swap in and out. If your fuel mixture is too lean, you re-jet and install a jet with a larger hole (allowing more fuel to pass through to richen up the mixture). If the fuel mixture is too rich, you re-jet with jets with a smaller hole to reduce the amount of fuel.
If you don't know, and plan on swapping in aftermarket carburetors, I'd definitely recommend reading up on how to properly tune a carburetor, or you may be bolting on a headache.
It's fun (and rewarding) to do. But it takes some learning.
Many of them have different jets you change swap in and out. If your fuel mixture is too lean, you re-jet and install a jet with a larger hole (allowing more fuel to pass through to richen up the mixture). If the fuel mixture is too rich, you re-jet with jets with a smaller hole to reduce the amount of fuel.
If you don't know, and plan on swapping in aftermarket carburetors, I'd definitely recommend reading up on how to properly tune a carburetor, or you may be bolting on a headache.
It's fun (and rewarding) to do. But it takes some learning.
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