C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Ummmm soooooo......

Old Mar 26, 2025 | 01:04 AM
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Default Ummmm soooooo......

Soooooo my smog pump just blew out and seized on my 89. (thankfully I was starting and not moving.) what do I do now cause these things apparently no longer exist (I'll be calling cardone in the morning) but I'm in commiefornia where I have to have one...... What do I do?
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Old Mar 26, 2025 | 01:32 AM
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ebay, mirrock, c4 buy/sell
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Old Mar 26, 2025 | 06:37 AM
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Junk yard? Contemporary Corvette in Bristol Pa
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Old Mar 26, 2025 | 07:10 AM
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You could convert to an electric pump.
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Old Mar 26, 2025 | 12:04 PM
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My vote is move.
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Old Mar 26, 2025 | 12:31 PM
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Originally Posted by Phobos84
You could convert to an electric pump.
I have often wondered if you could improve on OEM smog control. My state does not inspect but I have heard that in addition to the sensor in the tailpipe they do a visual inspection to ensure everything is OEM under the hood. That is to say your car could expel water vapor and rainbows but if you don't have all the 'as equipped' stuff under the hood it is a no go.

Anybody in an inspection required state to confirm or deny this?
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Old Mar 26, 2025 | 12:56 PM
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Originally Posted by dburgjohn
I have often wondered if you could improve on OEM smog control. My state does not inspect but I have heard that in addition to the sensor in the tailpipe they do a visual inspection to ensure everything is OEM under the hood. That is to say your car could expel water vapor and rainbows but if you don't have all the 'as equipped' stuff under the hood it is a no go.

Anybody in an inspection required state to confirm or deny this?
In PA our emissions inspections very by county population. So in my county it's a visual only inspection. I don't have to get the sniffer test done every year like more populated counties do. All they do in my county is look and make sure there is the required emissions equipment. Anyway here the law is pretty clear that "newer" or "upgraded aftermarket" emissions equipment is allowed as long as it meets or exceeds the OEM equipment. One good example of this is LS swapping my 84. The 84 came with an EGR and an air pump. Neither of these were factory on the 2002 Camaro that I pulled the LS1 out of. So I didn't need them anymore. I verified this with PennDOT and a local inspection mechanic before I did the work. Later on I put antique plates on the car so it doesn't matter anymore for me because in PA classic and antique cars are emissions exempt.

So in PA anyway you could swap out your mechanical pump for an electric one that was from a newer car. Years ago back on the Crossfire Injection forum I remember guys talking about swapping in Volkswagen air pumps. If I remember it was because they are designed to run non stop not just during startup. This made passing emissions tests with a larger cam easier. But that would be something to research. I never did that swap personally.
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Old Mar 26, 2025 | 06:29 PM
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Originally Posted by LouKramm86
Soooooo my smog pump just blew out and seized on my 89..... What do I do?
I have a good working smog pump from my 90 sitting on the shelf. I deleted all that stuff because it's not needed in NY. PM me if you're interested.
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Old Mar 26, 2025 | 09:09 PM
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Originally Posted by dburgjohn
I have often wondered if you could improve on OEM smog control. My state does not inspect but I have heard that in addition to the sensor in the tailpipe they do a visual inspection to ensure everything is OEM under the hood. That is to say your car could expel water vapor and rainbows but if you don't have all the 'as equipped' stuff under the hood it is a no go.

Anybody in an inspection required state to confirm or deny this?
Can confirm. I'm in commiefornia. If it's not stock.... It don't pass.
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Old Mar 26, 2025 | 09:11 PM
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Originally Posted by C4industries
I have a good working smog pump from my 90 sitting on the shelf. I deleted all that stuff because it's not needed in NY. PM me if you're interested.
Dm sent!
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