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Cant find a smooth TB coupler anywhere!?!

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Old Aug 17, 2012 | 10:41 PM
  #1  
Black88Z's Avatar
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Joined: Nov 2011
Posts: 507
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From: Charlotte, NC
Car: 1988 IROC-Z Camaro, 1981 Trans Am
Engine: 350 TPI, 301 N/A
Transmission: 700r4, 350thm
Cant find a smooth TB coupler anywhere!?!

Id like to replace my TB coupler with a smooth one. I have an '88TPI with the maf too. It increases airflow yes, but also looks better and my current one has/is developing cracks so its time to go. Ive checked autozone, advance auto, pepboys, even ebay! I cant find them anywhere! I read that they dont make them oval like the TB, you have to buy a 4in circular coupler and "mold" it to form and it'll fit. Nobody has any 4in couplers! lol anyone know where to get one? Im not looking for the most fancy one either.

Thanks


This is what it looks like. The red silicone part on the TB. Thanks again

http://i7.photobucket.com/albums/y30...20TA/007-2.jpg
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Old Aug 17, 2012 | 11:44 PM
  #2  
T/Aperformance's Avatar
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Joined: Mar 2012
Posts: 553
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From: Ballwin, MO
Car: 1987 Trans Am
Engine: 355 tpi
Transmission: 5 speed
Re: Cant find a smooth TB coupler anywhere!?!

You need to check ebay again, I just did a search and found one for 14.99 + shipping of 5.99 . summit and jegs also have them plus some better things that flow alot better than what you're looking for and looks better IMO than what your looking at.
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Old Aug 18, 2012 | 12:03 AM
  #3  
T/Aperformance's Avatar
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Joined: Mar 2012
Posts: 553
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From: Ballwin, MO
Car: 1987 Trans Am
Engine: 355 tpi
Transmission: 5 speed
Re: Cant find a smooth TB coupler anywhere!?!

check out jegs performance products Part #555-57031 its listed for a lt1 in the fuel injection category And list for $80.00 And I think it would make a clean and cool engine compartment.
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Old Aug 18, 2012 | 12:18 PM
  #4  
grumpyvette's Avatar
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From: loxahatchee fla
Re: Cant find a smooth TB coupler anywhere!?!

Name:  007-2.jpg
Views: 90
Size:  84.4 KB

your might want to check a good plumbing supply, rubber 4" to 3" adapters are just not that expensive
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Old Aug 28, 2012 | 03:59 PM
  #5  
quisterio's Avatar
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Joined: May 2005
Posts: 479
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From: Glasgow, KY
Car: 87' GTA
Engine: 350 L98 TPI
Transmission: 700-R4
Axle/Gears: 3.27 9-Bolt
Re: Cant find a smooth TB coupler anywhere!?!

Haha, that's exactly what I've got on my setup.
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Old Aug 28, 2012 | 08:51 PM
  #6  
LilSki's Avatar
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Joined: Feb 2010
Posts: 467
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Car: 85 Trans Am
Engine: 98 Vortec 350 LT1 Cam w/ TPI
Transmission: T56
Axle/Gears: 9 bolt 3:27
Re: Cant find a smooth TB coupler anywhere!?!

Kinda weird seeing a pic of my old engine. But yeah I got it as a kit but all it is is a 4" to 3" coupling as shown above. The full kits are all over ebay and they have the setups for MAF cars as well.
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Old Aug 28, 2012 | 11:17 PM
  #7  
Black88Z's Avatar
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Joined: Nov 2011
Posts: 507
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From: Charlotte, NC
Car: 1988 IROC-Z Camaro, 1981 Trans Am
Engine: 350 TPI, 301 N/A
Transmission: 700r4, 350thm
Re: Cant find a smooth TB coupler anywhere!?!

Lilski: Thats yours? Haha I could imagine that would be kinda weird. Thats a very nice 2nd gen btw!!

But I tried one of those adaptors and its too short; Im using the stock "Y" intake on my Camaro and those couplers are about 1-2in short IIRC. Does anyone know of any that fit the stock "Y" intake?
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