C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Test Pipe?

Thread Tools
 
Search this Thread
 
Old Jul 31, 2010 | 10:15 AM
  #1  
FedorC3's Avatar
FedorC3
Thread Starter
Advanced
 
Joined: Jun 2010
Posts: 74
Likes: 0
Default Test Pipe?

What should i tell the muffler shop are the dimensions for a test pipe for my '80? Or can i just find one online somewhere?
Reply
Old Jul 31, 2010 | 12:30 PM
  #2  
Jetglow's Avatar
Jetglow
Pro
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2010
Posts: 561
Likes: 288
From: Louisville KY
Default

Good question.....I am wondering the same thing. I want to get rid of catalytic converter..
Reply
Old Jul 31, 2010 | 12:54 PM
  #3  
FedorC3's Avatar
FedorC3
Thread Starter
Advanced
 
Joined: Jun 2010
Posts: 74
Likes: 0
Default

Cool! I just need it so I can go to a shop w/o a cat and get my dual system installed.

I guess I can take the car in and have them put it on a lift and all that. I just think
It will be easier to tell them the pipe size.

Anyone know?
Reply
Old Jul 31, 2010 | 12:56 PM
  #4  
terry82's Avatar
terry82
Le Mans Master
25 Year Member
 
Joined: Jul 2000
Posts: 6,664
Likes: 162
From: columbia city in
Default

take what you have ,knock out the insides with a long pipe .you now have a test pipe that looks factory but performs like a test pipe.
Reply
Old Jul 31, 2010 | 01:01 PM
  #5  
FedorC3's Avatar
FedorC3
Thread Starter
Advanced
 
Joined: Jun 2010
Posts: 74
Likes: 0
Default

Thanks Terry, but I need to remove the cat so a shop can install a catless system. Plus I want to keep the cat when test time comes.
Reply
Old Jul 31, 2010 | 01:18 PM
  #6  
Avette4me's Avatar
Avette4me
Le Mans Master
15 Year Member
 
Joined: Jan 2003
Posts: 6,575
Likes: 1
From: Tuttle OK
Cruise-In VIII Veteran
Default

You can get sections of exhaust pipe at most local parts stores.
Reply
Old Jul 31, 2010 | 01:50 PM
  #7  
terry82's Avatar
terry82
Le Mans Master
25 Year Member
 
Joined: Jul 2000
Posts: 6,664
Likes: 162
From: columbia city in
Default

i would still gut the old cat put it back on ,cost zero.then i would buy a new one for when you test .the old ones did a terrilble job .the new ones do a good job and do not restrict the flow.
Reply
Old Jul 31, 2010 | 03:58 PM
  #8  
FedorC3's Avatar
FedorC3
Thread Starter
Advanced
 
Joined: Jun 2010
Posts: 74
Likes: 0
Default

Ok, but I still need to remove the cat! A muffler shop will not install my dual system if the car has a cat.

I want to know what to tell the guy at the shop. "Hey can I have a test pipe that's so and so in size...."

Last edited by FedorC3; Jul 31, 2010 at 04:01 PM.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

 Michael S. Palmer
story-1

5 Best & 5 Worst Corvette Daily Drivers

 Joe Kucinski
story-2

The Headlights of Every Corvette Generation Explained

 Joe Kucinski
story-3

5 Best & 5 Most Overrated Corvette Track Packages of All Time!

 Joe Kucinski
story-4

Every 2027 Corvette Engine Explained

 Joe Kucinski
story-5

Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

 Verdad Gallardo
story-6

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-7

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-8

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-9

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
Old Jul 31, 2010 | 04:21 PM
  #9  
terry82's Avatar
terry82
Le Mans Master
25 Year Member
 
Joined: Jul 2000
Posts: 6,664
Likes: 162
From: columbia city in
Default

you can buy a duel exhaust from the corvette catalogs and put it on your self.but if you have to have a cat for emissions testing you or the muffler guy can put on a new cat that will help your performance.
Reply
Old Aug 3, 2010 | 08:40 AM
  #10  
Jetglow's Avatar
Jetglow
Pro
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2010
Posts: 561
Likes: 288
From: Louisville KY
Default

I purchased a "Test Pipe" for my 1977 on eBay...

The seller sells them for all years, makes & models

http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWNX%3AIT
Reply
Old Aug 3, 2010 | 10:14 AM
  #11  
terry82's Avatar
terry82
Le Mans Master
25 Year Member
 
Joined: Jul 2000
Posts: 6,664
Likes: 162
From: columbia city in
Default

lets start again .you want a duel exhaust that has a removeble cat?if you want duel exhaust you will have duel cats .do you have a stock motor?if you dont have a lot of hp the duel exhaust wont help you that much .the best thing to do is have the old bad cat upgraded to the new stuff because you are still being tested .now if the old cat has been cut off.....and you want a shop to work on it ...tell them it is a 1972.
Reply
Old Aug 3, 2010 | 11:16 AM
  #12  
Ironcross's Avatar
Ironcross
Race Director
10 Year Member
 
Joined: Nov 2002
Posts: 12,142
Likes: 54
From: Taylor Michigan
Default Simple to Make

The easiest way to have a 'test' pipe made is to cut it off with a saws-all or similar device without damaging either end and have them make a pipe matching the old converter with their pipe bender....We made many pipes this way and the customer went home and installed them... out of sight, out of mind....for those shops that cant remove them....
Reply
Old Aug 3, 2010 | 06:44 PM
  #13  
terry82's Avatar
terry82
Le Mans Master
25 Year Member
 
Joined: Jul 2000
Posts: 6,664
Likes: 162
From: columbia city in
Default

Originally Posted by Ironcross
The easiest way to have a 'test' pipe made is to cut it off with a saws-all or similar device without damaging either end and have them make a pipe matching the old converter with their pipe bender....We made many pipes this way and the customer went home and installed them... out of sight, out of mind....for those shops that cant remove them....
measure overal length before you cut.
Reply
Old Aug 3, 2010 | 08:33 PM
  #14  
Jetglow's Avatar
Jetglow
Pro
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2010
Posts: 561
Likes: 288
From: Louisville KY
Default

...or you can buy a test pipe cheap on ebay that is already made....and send it back if it does not fit. To me...its not that expensive because my time is worth more than removing the converter ...measuring, cutting and fitting a test pipe and then having someone weld it for me. I'd rather pay $60 for the pipe and just install. By the way.....I'm not the seller or maker...or friends with the person making these. I know I'm new here so I dont want anyone to think I'm here to promote somebodys product. I just think this is cheap and easy if it fits...

Last edited by Jetglow; Aug 3, 2010 at 08:35 PM.
Reply
Old Aug 3, 2010 | 08:45 PM
  #15  
terry82's Avatar
terry82
Le Mans Master
25 Year Member
 
Joined: Jul 2000
Posts: 6,664
Likes: 162
From: columbia city in
Default

Originally Posted by terry82
take what you have ,knock out the insides with a long pipe .you now have a test pipe that looks factory but performs like a test pipe.
free
Reply

Get notified of new replies

To Test Pipe?





All times are GMT -4. The time now is 06:12 PM.

story-0
2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

Slideshow: Is the 2027 Chevrolet Silverado 1500 the best Silverado yet?

By Michael S. Palmer | 2026-06-16 08:01:12


VIEW MORE
story-1
5 Best & 5 Worst Corvette Daily Drivers

Slideshow: 5 best and 5 worst Corvette daily drivers

By Joe Kucinski | 2026-06-15 10:32:13


VIEW MORE
story-2
The Headlights of Every Corvette Generation Explained

Slideshow: The headlights of every Corvette generation explained

By Joe Kucinski | 2026-06-15 10:17:14


VIEW MORE
story-3
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-4
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-5
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-6
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-7
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-8
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-9
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE