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

Smog Delete

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Old Aug 12, 2021 | 07:20 AM
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Default Smog Delete

I want to delete the AIR on my 84. Found this bracket and pulley and was wondering if anyone has used it, what size belt you used or if there was any need to replace the current belt. If anyone has used a better bracket I would be interested in that too.


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Old Aug 12, 2021 | 08:04 AM
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Yes. I have used something similar to what you have pictured. Removed the AIR pump and installed long tube headers. The original size belt is still being used as I saw no need to replace it.
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Old Aug 12, 2021 | 08:48 AM
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Do you think there will be vacuum line problems. I'm pretty sure that I can eliminate both of the tubes running along the cylinder heads. Not sure what that does to the EGR. There is probably a good step by step tut here somewhere, just need to find it.
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Old Aug 13, 2021 | 09:21 AM
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I too am looking for some type of procedure or bill of materials to do this on my 1989.
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Old Aug 15, 2021 | 08:06 PM
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When you remove the emissions just make sure that all vacuum lines are capped or removed. Just follow where they go. I don't know on a 84 but; on my 86 I didn't like the options with the pulleys. I decided to gut my smog pump, paint it black and get a chrome alternator and smog pump bracket. I liked the look better on my car.

Just my experience




Last edited by rrt898; Aug 15, 2021 at 08:07 PM.
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Old Aug 17, 2021 | 06:02 PM
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Originally Posted by wedoo2
I want to delete the AIR on my 84. Found this bracket and pulley and was wondering if anyone has used it, what size belt you used or if there was any need to replace the current belt. If anyone has used a better bracket I would be interested in that too.

You need a dorman 34157 delete for 88-92 camaro, firebird and chevy trucks. You will need a different belt but I am not at home so will get you the belt # when I return. Greg
Goodyear belt # 4060872

Last edited by wilcar; Aug 17, 2021 at 06:38 PM.
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Old Aug 17, 2021 | 06:40 PM
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Default 84 AC Delete

Goodyear 4060872 is the belt #.
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