LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Hole in Bottom of Intake Elbow

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Old Sep 16, 2003 | 10:58 PM
  #1  
mechmsb's Avatar
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Hole in Bottom of Intake Elbow

Ok...I recently fixed my hesitation by putting a new opti in the mechanic I brought it to also notice a small drilled hole in the bottom of my Intake Elbow, is there a reason that the previous owner would of done this???...I got it replaced with a new one, but i'm just curious why..they woudl do that.
Old Sep 16, 2003 | 10:59 PM
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Maybe for a stealth nitrous nozzle.
Old Sep 16, 2003 | 11:03 PM
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They must have replaced your non-vented opti-spark with a vented opti-spark.
I believe 93's & 94's came with non-vented and the 94's came with vented.
That little hole that is drilled in that bottem of your elbow should have a vacuum line leading down to the opti.
Old Sep 16, 2003 | 11:06 PM
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Originally posted by ProjectTranzAm
They must have replaced your non-vented opti-spark with a vented opti-spark.
I believe 93's & 94's came with non-vented and the 94's came with vented.
That little hole that is drilled in that bottem of your elbow should have a vacuum line leading down to the opti.
The hole for the opti vent line is in the top, not the bottom.
Old Sep 16, 2003 | 11:44 PM
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Sounds like someone had some go go juice on there!
Old Sep 16, 2003 | 11:50 PM
  #6  
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Originally posted by shoebox
The hole for the opti vent line is in the top, not the bottom.
Whoops!
Old Sep 17, 2003 | 12:00 AM
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The hole for the opti vent line is in the top, not the bottom

If the 94 comes with a non-vented opty... does the Elbow still have a hole in the top or anywhere?


just curios


Marvin
Old Sep 17, 2003 | 12:28 AM
  #8  
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Nope, the hole is only in the bellows that came on the vented opti cars. It's a small hole on the top.
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