Arizona Emissions with an Edelbrock Carb! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

68 Suburban · 08-09-2002, 08:02 PM

I took the burb to emissions today with the Edelbrock 1406 carb. I have gone down 2 steps from the way it came out of the box. Everything past the test, except idle CO. That barely failed.

I pulled the truck out made a couple of adjustments to the carb and 3 minutes later I was getting tested again.

Look at these numbers!! What a clean running vehicle

Even the Emissions guy said WOW! Hehe, I love this carb

Longhorn Man · 08-09-2002, 08:32 PM

Emmisions...whats that?

CE20934 · 08-09-2002, 10:33 PM

I second the previous statement.

68 Suburban · 08-09-2002, 10:47 PM

It is what causes that big nasty orange haze that hangs in the valley

It is so thick that when you fly through it, it actually feels like air turbulance.

Andy, with that west nile mosquito virus going around back east, mabe you can earn some extra money doing mosquito abatement

:p hehe Im sure your truck is tuned perfect for it

Longhorn Man · 08-09-2002, 10:53 PM

ouch man...very ouch.
I did my share on the way back from Michigan a couple weeks ago. Lots of fresh oil onto my pipes.

Low67C10 · 08-09-2002, 11:27 PM

Should get better gas milage too. I do smogs in california and youve got it easy compared to us as far as standards go. Readings like the ones you got on your initial test would have put your truck in the "gross polluter" loop, forcing you to go to test only centers for smog checks for a few years. But then agian, we dont test anything earlier than 74 anyways.

68 Suburban · 08-09-2002, 11:37 PM

I didn't think my first test was that bad? I just missed on one of the 4 test and not by much ?

You have to remember the standards for 1974 are harder than 1968

busterwivell · 08-10-2002, 12:36 AM

My 402 went right thru again with that carb.........never been a problem, right out of the box. Wish we had Cali laws, wouldn't have to pay the fees to show the state it runs clean.

hjalbert · 08-10-2002, 12:39 AM

oh crap, how the hell am i going to pass emmisions down here if i do get my truck ehre chris? by the way, i havent seen any inspections stickers, whats up with that? also, why do you have to get inspected? is there a sticker or something, or do they require it to renew you tags?

68 Suburban · 08-10-2002, 12:43 AM

No sticker, but you can't register and get plates until you pass. It is linked with the DMV computer.

mikep · 08-10-2002, 10:11 AM

So you have to pass 1968's emissions standards if you have a 1968 truck? I know Pheonix has some had smog but not the rest of AZ. In washington we only test something like 3 or 4 of the larger counties in the state for Smog and even then it is only newer vehicles that are tested.

68 Suburban · 08-10-2002, 10:37 AM

mikep, Yes there are diffferent standards for the different years. So 1968 will have a lot easier standards than 1974 with cats. I think that is why my original test for the burb might have looked like a "gross pollutor" to Low67C10. I think he might be looking at the 68's numbers and comparing them to the standards for a 1974, which is as far back as Cali goes now.

Only the big counties in AZ test. I think it is the counties with Phoenix, Tucson and Flagstaff are the only ones that test.

**Desert Rat** · 08-10-2002, 02:07 PM

Ive only been through once in Washington,none here in Casa Grande,it wasnt a clean runner,i cranked up idle,and unplugged pcv valve and past,not bad for a motor that hadnt run in 10 years.oh i had new tuneup on motor before it dropped into truck.

Low67C10 · 08-11-2002, 09:58 PM

6+% on idle and 3+% loaded is extremely rich reguardless of the standards, at about 7% it starts burning your eyes. What you have to understand is the standard is the maximium allowable is much higher than what would be considered correct . Keep in mind that the carbon monoxide emission is directly related to air/fuel ratio. I was looking in the books here and as of the late 90s(back when you had to do smog checks on all post 64 vehicles) here in Cali, the max allowable for a 68 truck up to 8501 GVWR was HC 350 and CO 2.5% and is considered a "gross polluter" at HC 500 and 5% CO.

68 Suburban · 08-11-2002, 10:08 PM

I guess Cali's standards are stricter than AZ's. But truck is defiantely not gross any more

At least not "gross" a polluter.

Low67C10 · 08-12-2002, 12:04 AM

Yeah, the readings in the second test look great. Looks like the engine is in good mechanical condition.

08-09-2002, 08:02 PM	#1
68 Suburban Registered User Join Date: Oct 2000 Location: From Chicago, Live in Phoenix, AZ Posts: 6,802	Arizona Emissions with an Edelbrock Carb! I took the burb to emissions today with the Edelbrock 1406 carb. I have gone down 2 steps from the way it came out of the box. Everything past the test, except idle CO. That barely failed. I pulled the truck out made a couple of adjustments to the carb and 3 minutes later I was getting tested again. Look at these numbers!! What a clean running vehicle Even the Emissions guy said WOW! Hehe, I love this carb __________________ Just sitting here contemplating contemplation.

08-09-2002, 10:33 PM	#3
CE20934 Senior Member Join Date: Apr 2002 Location: Help! I'm in an office park with its own network of freeways! Posts: 470	I second the previous statement. __________________ '67 C20--427 tall deck/SM420, 4.10 HO52 (Michigan has not been kind to the Old Man) '95 Caprice--355 LT1/T56/3.42 8.5" 10-bolt (daily driver, almost 300k on the chassis) '07 Outback--wife's car. 125k & counting. No head gasket or transmission issues yet. fingers crossed

08-09-2002, 10:47 PM	#4
68 Suburban Registered User Join Date: Oct 2000 Location: From Chicago, Live in Phoenix, AZ Posts: 6,802	It is what causes that big nasty orange haze that hangs in the valley It is so thick that when you fly through it, it actually feels like air turbulance. Andy, with that west nile mosquito virus going around back east, mabe you can earn some extra money doing mosquito abatement :p hehe Im sure your truck is tuned perfect for it __________________ Just sitting here contemplating contemplation.

08-09-2002, 11:27 PM	#6
Low67C10 Registered User Join Date: May 2002 Location: Southern California Posts: 66	Should get better gas milage too. I do smogs in california and youve got it easy compared to us as far as standards go. Readings like the ones you got on your initial test would have put your truck in the "gross polluter" loop, forcing you to go to test only centers for smog checks for a few years. But then agian, we dont test anything earlier than 74 anyways. __________________ No, Its not a 454

08-09-2002, 11:37 PM	#7
68 Suburban Registered User Join Date: Oct 2000 Location: From Chicago, Live in Phoenix, AZ Posts: 6,802	I didn't think my first test was that bad? I just missed on one of the 4 test and not by much ? You have to remember the standards for 1974 are harder than 1968 __________________ Just sitting here contemplating contemplation. Last edited by 68 Suburban; 08-09-2002 at 11:46 PM.

08-09-2002, 08:32 PM	#2
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Emmisions...whats that?

08-09-2002, 10:53 PM	#5
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	ouch man...very ouch. I did my share on the way back from Michigan a couple weeks ago. Lots of fresh oil onto my pipes.

08-10-2002, 12:36 AM	#8
busterwivell Registered User Join Date: Jan 2002 Location: Sahuarita, AZ USA Posts: 2,033	My 402 went right thru again with that carb.........never been a problem, right out of the box. Wish we had Cali laws, wouldn't have to pay the fees to show the state it runs clean. __________________ Bill - Tucson, AZ 47 Chevrolet 2 dr sedan 56 Chevrolet 210 2 dr sedan 66 Chevrolet Malibu 2 dr 4 speed 71 Chevrolet C30 Longhorn 86 Chevrolet Monte Carlo SS (Sold) 01 Chevrolet Tahoe IM - BUSTERWIVE@aol.com

08-10-2002, 12:39 AM	#9
hjalbert cracker Join Date: Sep 2001 Location: Wilmington, NC Posts: 1,021	oh crap, how the hell am i going to pass emmisions down here if i do get my truck ehre chris? by the way, i havent seen any inspections stickers, whats up with that? also, why do you have to get inspected? is there a sticker or something, or do they require it to renew you tags? __________________ FOUNDING MEMBER OF THE DRUM BRAKE CLUB Harry John Albert III located in Phoenix, AZ 1972 GMC JIMMY, 1969 lwb Chevy Frame, 1999 bmw k1200 ltc 1992 Kawasaki concours 1991 bmw k75 1973 cortez motorhome

08-10-2002, 12:43 AM	#10
68 Suburban Registered User Join Date: Oct 2000 Location: From Chicago, Live in Phoenix, AZ Posts: 6,802	No sticker, but you can't register and get plates until you pass. It is linked with the DMV computer. __________________ Just sitting here contemplating contemplation.

08-10-2002, 10:11 AM	#11
mikep Used to have a truck Join Date: May 2002 Location: port orchard WA Posts: 1,552	So you have to pass 1968's emissions standards if you have a 1968 truck? I know Pheonix has some had smog but not the rest of AZ. In washington we only test something like 3 or 4 of the larger counties in the state for Smog and even then it is only newer vehicles that are tested. __________________ No truck :-(

08-10-2002, 10:37 AM	#12
68 Suburban Registered User Join Date: Oct 2000 Location: From Chicago, Live in Phoenix, AZ Posts: 6,802	mikep, Yes there are diffferent standards for the different years. So 1968 will have a lot easier standards than 1974 with cats. I think that is why my original test for the burb might have looked like a "gross pollutor" to Low67C10. I think he might be looking at the 68's numbers and comparing them to the standards for a 1974, which is as far back as Cali goes now. Only the big counties in AZ test. I think it is the counties with Phoenix, Tucson and Flagstaff are the only ones that test. __________________ Just sitting here contemplating contemplation. Last edited by 68 Suburban; 08-10-2002 at 10:53 AM.

08-10-2002, 02:07 PM	#13
Desert Rat Senior Member Join Date: Dec 1999 Location: Darrington, Washington Posts: 3,963	Ive only been through once in Washington,none here in Casa Grande,it wasnt a clean runner,i cranked up idle,and unplugged pcv valve and past,not bad for a motor that hadnt run in 10 years.oh i had new tuneup on motor before it dropped into truck.

08-11-2002, 09:58 PM	#14
Low67C10 Registered User Join Date: May 2002 Location: Southern California Posts: 66	6+% on idle and 3+% loaded is extremely rich reguardless of the standards, at about 7% it starts burning your eyes. What you have to understand is the standard is the maximium allowable is much higher than what would be considered correct . Keep in mind that the carbon monoxide emission is directly related to air/fuel ratio. I was looking in the books here and as of the late 90s(back when you had to do smog checks on all post 64 vehicles) here in Cali, the max allowable for a 68 truck up to 8501 GVWR was HC 350 and CO 2.5% and is considered a "gross polluter" at HC 500 and 5% CO. __________________ No, Its not a 454

08-11-2002, 10:08 PM	#15
68 Suburban Registered User Join Date: Oct 2000 Location: From Chicago, Live in Phoenix, AZ Posts: 6,802	I guess Cali's standards are stricter than AZ's. But truck is defiantely not gross any more At least not "gross" a polluter. __________________ Just sitting here contemplating contemplation.



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08-12-2002, 12:04 AM	#16
Low67C10 Registered User Join Date: May 2002 Location: Southern California Posts: 66	Yeah, the readings in the second test look great. Looks like the engine is in good mechanical condition. __________________ No, Its not a 454

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