2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

TB inlet size

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Old Apr 27, 2006 | 05:12 PM
  #1  
Cybaster's Avatar
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From: Castro Valley
TB inlet size

Hello everyone,
I have a quick question. I am going to order some Silicone Couplers for my IC pipes, and I was wondering how big the stock S5 TB inlet size is...

Thanks

Jonathan
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Old Apr 27, 2006 | 06:12 PM
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Uh, well..I don't see why you want to know this, since you're buying silicone couplers. You would have a TB elbow, which I'm presuming would be either 2.5" or 3"...the TB inlet is not round...
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Old Apr 27, 2006 | 06:17 PM
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The stock TB elbow inlet on an N/A is round, and iirc it's about 3.5" across.
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Old Apr 27, 2006 | 08:44 PM
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From: Castro Valley
i know the inlet for the NA is a different size

I have a 2.25 elbow(the silver thing in the picture after the blue pipe) hooked up to it right now, and the coupler is a 2.5 straight, I want to see if i can get a step down
Attached Thumbnails TB inlet size-dscn3049a.jpg  

Last edited by Cybaster; Apr 27, 2006 at 08:48 PM.
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Old Apr 27, 2006 | 08:47 PM
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Uh, no, the TB on all FC's is the same. NONE ARE ROUND. All are triangular.

Now, if you mean the throttle body inlet ELBOW...that's a different story....What size do you want? Be SPECIFIC.
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Old Apr 27, 2006 | 08:53 PM
  #6  
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From: Castro Valley
i am talking about this inlet, the stock inlet where the Stock IC meets the TB inlet,
I know the TB is triangular and I am not talking about the TB, (see red arrow)
Attached Thumbnails TB inlet size-tbinlet.jpg  
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Old Apr 28, 2006 | 04:50 AM
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The stock TB "cap" is 2.0" O.D.


-Ted
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Old Apr 28, 2006 | 10:06 AM
  #8  
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does no-one have a measuring tape?
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Old Apr 28, 2006 | 08:54 PM
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Did you just completely miss Ted's post?
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