A.I.R. System (Smog) - The 1947 - Present Chevrolet & GMC Truck Message Board Network

PHOENIX · 11-01-2002, 02:37 PM

I really really really hate my exhuast manifolds, because they have those stupid tubes for the A.I.R. system. Has anyone removed these manifold and replaced them with non-A.I.R. headers, and if so did you still pass emission without problems?

We have dyno and visual inspections here, so I dont know if I will have a problem if I remove the pump and manifolds.

The reason I ask this is because the little tubes are getting so old that they are coming out of the manifold and making an exhuast leak sound. Instead of fixing this problem I would rather buy headers. But I cant afford the A.I.R. system headers right now (Edelbrock headers like Swervins).

How much do these little tubes and A.I.R. system really help as far as sniffer test goes, anyone know?

Also if I did buy non-A.I.R. system headers I would probly buy some that come jet-hot coated already, like the Dyno-Max headers in the Jegs catalog. Are these headers any good?

Does Edelbrock make a header (non-A.I.R.) that comes coated already?

Any and all responces are welcome. Thanks.

PS when I decide to do the headers it will be an all new exhuast system. Headers to Y-Pipe 3" pipes into cat into muffler, and split 2-1/2" pipe behind each rear tire (kinda like stock).

**swervin ervin** · 11-01-2002, 03:04 PM

Eddie,

I can't say for everyone else, because each state is different but, I know where I live, it would be turned down flat out. They are a real stickler about this stuff here. This is why I have Edelbrock TES headers on my truck. I believe this question would be better answered by someone who lives where you do and has tried it.

What am I answering for?

Tom · 11-01-2002, 06:11 PM

Ed,
You will NOT pass without the AIR system. Try like my friend did, go buy some cheapie headers from checker, and have a machine shop weld new bungs in to hook up the air system. It isent the prettiest looking pair of headers, but they work.

PHOENIX · 11-01-2002, 06:30 PM

But I want them coated.
Ohh well I guess I really need to start saving up the cash and sell the stash.

Stash:
700r4 (needs rebuild)
sm465 (needs rebuild)

Anyone tell me what those are worth?
As far as I know the 700r4 just needs a new front pump.
The sm465 is the original tranny from my '83 C10. So it probly needs a good rebuild.

neonlarry · 11-01-2002, 09:05 PM

I think hooker makes some that work with the AIR too, I don't know if they are any cheaper than the edelbrocks though. (about $450)

*mike reeh* · 11-01-2002, 10:50 PM

yeah you'll need the air pump setup..

what really sucks is that not only will you have to buy the more expensive headers, but you'll have to buy new AIR manifolds too for the new headers

which are fairly pricey... Doug Thorley headers has a *****in set of air-injection headers, and thorleys are some of the best headers you can buy. Thats what I run on my truck... if you dont have inspection for a while, you can just buy the legal headers and plug them with pipe plugs until you have the cash to complete the setup, or until you have to get smogged. thats also what I do

anyways good luck

mike

11-01-2002, 02:37 PM	#1
PHOENIX Registered User Join Date: Oct 2002 Location: Phoenix, Arizona Posts: 4,703	A.I.R. System (Smog) I really really really hate my exhuast manifolds, because they have those stupid tubes for the A.I.R. system. Has anyone removed these manifold and replaced them with non-A.I.R. headers, and if so did you still pass emission without problems? We have dyno and visual inspections here, so I dont know if I will have a problem if I remove the pump and manifolds. The reason I ask this is because the little tubes are getting so old that they are coming out of the manifold and making an exhuast leak sound. Instead of fixing this problem I would rather buy headers. But I cant afford the A.I.R. system headers right now (Edelbrock headers like Swervins). How much do these little tubes and A.I.R. system really help as far as sniffer test goes, anyone know? Also if I did buy non-A.I.R. system headers I would probly buy some that come jet-hot coated already, like the Dyno-Max headers in the Jegs catalog. Are these headers any good? Does Edelbrock make a header (non-A.I.R.) that comes coated already? Any and all responces are welcome. Thanks. PS when I decide to do the headers it will be an all new exhuast system. Headers to Y-Pipe 3" pipes into cat into muffler, and split 2-1/2" pipe behind each rear tire (kinda like stock). __________________ * AVOID: LOPER'S PERMORANCE / LOPERSPEED.COM OF PHOENIX, AZ & COTTMAN TRANSMISSION *

11-01-2002, 03:04 PM	#2
swervin ervin You get what you pay for Join Date: Dec 1999 Location: Cherryville, NC Posts: 4,798	Eddie, I can't say for everyone else, because each state is different but, I know where I live, it would be turned down flat out. They are a real stickler about this stuff here. This is why I have Edelbrock TES headers on my truck. I believe this question would be better answered by someone who lives where you do and has tried it. What am I answering for? __________________ Mike 1985 Chevy C-10

11-01-2002, 06:11 PM	#3
Tom driving is in my blood Join Date: Dec 1999 Location: Mesa AZ Posts: 5,748	Ed, You will NOT pass without the AIR system. Try like my friend did, go buy some cheapie headers from checker, and have a machine shop weld new bungs in to hook up the air system. It isent the prettiest looking pair of headers, but they work. __________________ -78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle. -98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me.

11-01-2002, 06:30 PM	#4
PHOENIX Registered User Join Date: Oct 2002 Location: Phoenix, Arizona Posts: 4,703	But I want them coated. Ohh well I guess I really need to start saving up the cash and sell the stash. Stash: 700r4 (needs rebuild) sm465 (needs rebuild) Anyone tell me what those are worth? As far as I know the 700r4 just needs a new front pump. The sm465 is the original tranny from my '83 C10. So it probly needs a good rebuild. __________________ * AVOID: LOPER'S PERMORANCE / LOPERSPEED.COM OF PHOENIX, AZ & COTTMAN TRANSMISSION *

11-01-2002, 09:05 PM	#5
neonlarry Registered User Join Date: Feb 2002 Location: Vacaville, CA Posts: 2,745	I think hooker makes some that work with the AIR too, I don't know if they are any cheaper than the edelbrocks though. (about $450) __________________ 70 C/10 Light Red 350/TH350, HEI, Duals w/40 series Flows, 91 seat, LED taillights 99 Pontiac S/C GTP, SLP Ram Air hood, GMPP Konis & springs 95 Neon ACR, MP PCM, AFX UDP, 3.0 CAI

11-01-2002, 10:50 PM	#6
mike reeh 5 day ban, learn to behave. Join Date: Nov 2002 Location: san diego, ca Posts: 683	yeah you'll need the air pump setup.. what really sucks is that not only will you have to buy the more expensive headers, but you'll have to buy new AIR manifolds too for the new headers which are fairly pricey... Doug Thorley headers has a *****in set of air-injection headers, and thorleys are some of the best headers you can buy. Thats what I run on my truck... if you dont have inspection for a while, you can just buy the legal headers and plug them with pipe plugs until you have the cash to complete the setup, or until you have to get smogged. thats also what I do anyways good luck mike



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