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

Air filter housing question...

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Old Oct 19, 2002 | 10:05 PM
  #1  
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Default Air filter housing question...

I just bought a new air filter housing from Jeff Kopp and notice that it looks like there is some kind of air hose at the top left that mine currently doesn't have. Does anyone know if this is suppose to be there for a 1990? TIA
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Old Oct 20, 2002 | 04:12 PM
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Default Re: Air filter housing question... (VetteWave)

Anyone?
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Old Oct 20, 2002 | 08:58 PM
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Default Re: Air filter housing question... (VetteWave)

I dont think it has one. I had my filterbox out and didnt see one. Call them back and ask, could be some upgrade thing.
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Old Oct 20, 2002 | 08:59 PM
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Default Re: Air filter housing question... (VetteWave)

On later years, that is the hookup for the electric AIR (smog) pump inlet. Perhaps you got the wrong year intake, but you can always just plug up the hole, which I think is roughly 3/4" diameter.

Or the more likely case, GM probably decided to stop producing the early '90s intake and just offer the mid-90s intake as a replacement.


[Modified by JasonL, 5:00 PM 10/20/2002]
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Old Oct 20, 2002 | 09:25 PM
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Default Re: Air filter housing question... (JasonL)

What is the best way to plug it up without making it to distracting?

On later years, that is the hookup for the electric AIR (smog) pump inlet. Perhaps you got the wrong year intake, but you can always just plug up the hole, which I think is roughly 3/4" diameter.

Or the more likely case, GM probably decided to stop producing the early '90s intake and just offer the mid-90s intake as a replacement.


[Modified by JasonL, 5:00 PM 10/20/2002]
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Old Oct 21, 2002 | 09:21 AM
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Default Re: Air filter housing question... (VetteWave)

If you have considered relocating your intake air temp sensor, this could be a good place for it.


[Modified by Steel Blue 91, 8:21 AM 10/21/2002]
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Old Oct 21, 2002 | 10:52 AM
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Default Re: Air filter housing question... (Steel Blue 91)

I don;t think the 90s have one. Don't they have Speed Density?

If you have considered relocating your intake air temp sensor, this could be a good place for it.


[Modified by Steel Blue 91, 8:21 AM 10/21/2002]
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Old Oct 21, 2002 | 11:56 AM
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Default Re: Air filter housing question... (VetteWave)

I don;t think the 90s have one. Don't they have Speed Density?
True, so it would be MAT (sorry, that was way early in the AM for me) :cry
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Old Oct 21, 2002 | 04:42 PM
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Default Re: Air filter housing question... (VetteWave)

I had the same problem. Went to my local auto parts store and they have what look like vaccuum fitting covers, but in a 3/4" diameter. Black rubber fits perfectly and is almost invisible! I think they were in the red "help" section. Might have come 2 to a package (it's been awhile).


[Modified by chaos on wheels, 12:43 PM 10/21/2002]
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Old Oct 21, 2002 | 06:10 PM
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Default Re: Air filter housing question... (chaos on wheels)

Thanks! I'll go to Pep Boys and see what they have!

I had the same problem. Went to my local auto parts store and they have what look like vaccuum fitting covers, but in a 3/4" diameter. Black rubber fits perfectly and is almost invisible! I think they were in the red "help" section. Might have come 2 to a package (it's been awhile).


[Modified by chaos on wheels, 12:43 PM 10/21/2002]
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Old Oct 24, 2002 | 01:19 PM
  #11  
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Default Re: Air filter housing question... (chaos on wheels)

I just got two if them from Napa for $4. Pep Boys didn't have it. Thanks!

I had the same problem. Went to my local auto parts store and they have what look like vaccuum fitting covers, but in a 3/4" diameter. Black rubber fits perfectly and is almost invisible! I think they were in the red "help" section. Might have come 2 to a package (it's been awhile).


[Modified by chaos on wheels, 12:43 PM 10/21/2002]
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Old Oct 24, 2002 | 04:23 PM
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Default Re: Air filter housing question... (VetteWave)

I don;t think the 90s have one. Don't they have Speed Density?
[Modified by Steel Blue 91, 8:21 AM 10/21/2002]
Right, the 90 does not have a hole in the filter housing.

I am betting you got one from an LT1/4 car.
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