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

X-Brace Picture Request

Thread Tools
 
Search this Thread
 
Old Sep 8, 2012 | 09:21 PM
  #1  
Kubs's Avatar
Kubs
Thread Starter
Le Mans Master
15 Year Member
Community Builder
Community Favorite
Top Answer: 5
 
Joined: Oct 2007
Posts: 9,682
Likes: 3,434
From: Akron Ohio
2025 Corvette of the Year Finalist - Modified
2024 C5 of the Year Winner - Modified
2023 C5 of the Year Finalist - Modified
2022 C5 of the Year Finalist - Modified
St. Jude Donor '09-'10-'11
Default X-Brace Picture Request

I would like to see some pictures of the underside of your car if you have an x-brace installed. Also, some side upclose pictures of ground clearance. Please let me know too if your car is lowered or not. I am flirting with the idea of making a "NASCAR stye" side exit exhaust on my car, but I am not sure how much room I will have to work with. I figure the thickness of the x-brace under the body might be a good comparison for how tall the pipes can be.
Reply
Old Sep 8, 2012 | 10:21 PM
  #2  
pmihaltian's Avatar
pmihaltian
Slingshot
Supporting Lifetime
20 Year Member
 
Joined: Dec 2001
Posts: 3,817
Likes: 24
From: Charlotte NC
Default

Originally Posted by Kubs
I would like to see some pictures of the underside of your car if you have an x-brace installed. Also, some side upclose pictures of ground clearance. Please let me know too if your car is lowered or not. I am flirting with the idea of making a "NASCAR stye" side exit exhaust on my car, but I am not sure how much room I will have to work with. I figure the thickness of the x-brace under the body might be a good comparison for how tall the pipes can be.
Here is a close-up photo of my rocker panel. You can see the x-brace below the rocker panel. The clearance is only a few inches and as such you will not have very much room for under-rocker pipes.

I think they would look pretty cool, but I suspect that you would dent them or possibly rip them off in short order due to low ground clearance.

IMHO
Attached Images  
Reply
Old Sep 8, 2012 | 11:00 PM
  #3  
Kubs's Avatar
Kubs
Thread Starter
Le Mans Master
15 Year Member
Community Builder
Community Favorite
Top Answer: 5
 
Joined: Oct 2007
Posts: 9,682
Likes: 3,434
From: Akron Ohio
2025 Corvette of the Year Finalist - Modified
2024 C5 of the Year Winner - Modified
2023 C5 of the Year Finalist - Modified
2022 C5 of the Year Finalist - Modified
St. Jude Donor '09-'10-'11
Default

That looks kinda dark from my phone so I cannot see much, but thanks fot posting it.

Just to clarify, it will not be a tube exit but a rectangle about 1.5" x 5" wide (whatever equals the same area as a 3" tube).
Reply
Old Sep 8, 2012 | 11:13 PM
  #4  
pmihaltian's Avatar
pmihaltian
Slingshot
Supporting Lifetime
20 Year Member
 
Joined: Dec 2001
Posts: 3,817
Likes: 24
From: Charlotte NC
Default

Originally Posted by Kubs
That looks kinda dark from my phone so I cannot see much, but thanks fot posting it.

Just to clarify, it will not be a tube exit but a rectangle about 1.5" x 5" wide (whatever equals the same area as a 3" tube).
Well, again, it sounds pretty cool. Keep us posted with some final pics and let us know how it works out. Good luck,
Reply
Old Sep 8, 2012 | 11:30 PM
  #5  
mcm95403's Avatar
mcm95403
Le Mans Master
Supporting Member
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2009
Posts: 6,882
Likes: 234
From: Bangkok, Thailand
Default

The side exit may look cool, but that's about it. If you want to make good powerr and still have good sound control you should run the dual 3" pipes into a single 4.5" (use a Flowmaster Y-350450 to make the joint) oval pipe following the stock system. After you pass under the rear end, keep it single and run it into a Flowmaster 64520-14 race muffler. Make sure to have at least 10" of tailpipe on it too. For en engine that really needs dual 3" going with that race single system would be the best performance for any type of raod track. If it's a drag only car, you could go dual 3" all the way back and use a set of 5" thick race mufflers instead.

PM me if you have questions.
Reply
Old Sep 8, 2012 | 11:38 PM
  #6  
Kubs's Avatar
Kubs
Thread Starter
Le Mans Master
15 Year Member
Community Builder
Community Favorite
Top Answer: 5
 
Joined: Oct 2007
Posts: 9,682
Likes: 3,434
From: Akron Ohio
2025 Corvette of the Year Finalist - Modified
2024 C5 of the Year Winner - Modified
2023 C5 of the Year Finalist - Modified
2022 C5 of the Year Finalist - Modified
St. Jude Donor '09-'10-'11
Default

Originally Posted by mcm95403
The side exit may look cool, but that's about it. If you want to make good powerr and still have good sound control you should run the dual 3" pipes into a single 4.5" (use a Flowmaster Y-350450 to make the joint) oval pipe following the stock system. After you pass under the rear end, keep it single and run it into a Flowmaster 64520-14 race muffler. Make sure to have at least 10" of tailpipe on it too. For en engine that really needs dual 3" going with that race single system would be the best performance for any type of raod track. If it's a drag only car, you could go dual 3" all the way back and use a set of 5" thick race mufflers instead.

PM me if you have questions.
Why would that be better? Right now I have two 3" pipes that exit under the diff. A shorter exhaust will help gain torque, one of the main reasons the Pratt and Miller C6R and Caddy race cars have the exhaust exit midway down the rocker panel. I cannot go through the frame like they do because of my race class restrictions, so I have to go under the car. I dont want the short exit pipes to dump under the car in the middle because that will pressurize the bottom of the car and create lift. Going out the side will help keep the exhaust short and get the gas out from under the car.
Reply
Old Sep 9, 2012 | 12:13 AM
  #7  
Tom400CFI's Avatar
Tom400CFI
Team Owner
Pro Mechanic
20 Year Member
 
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
Default

Originally Posted by Kubs
Why would that be better?
X2?
Reply
Old Sep 9, 2012 | 12:33 AM
  #8  
pologreen1's Avatar
pologreen1
Team Owner
15 Year Member
 
Joined: Dec 2007
Posts: 20,974
Likes: 261
Default

This car has that exhaust.

Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-1

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-2

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-3

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-4

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-5

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-6

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-7

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-8

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-9

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
Old Sep 9, 2012 | 08:28 AM
  #9  
Kubs's Avatar
Kubs
Thread Starter
Le Mans Master
15 Year Member
Community Builder
Community Favorite
Top Answer: 5
 
Joined: Oct 2007
Posts: 9,682
Likes: 3,434
From: Akron Ohio
2025 Corvette of the Year Finalist - Modified
2024 C5 of the Year Winner - Modified
2023 C5 of the Year Finalist - Modified
2022 C5 of the Year Finalist - Modified
St. Jude Donor '09-'10-'11
Default

Originally Posted by pologreen1
This car has that exhaust.
Hey, cool find!!! Yes, that is very much what I am looking to do. Do they have any pictures of the underneath?
Reply
Old Sep 9, 2012 | 10:00 AM
  #10  
scorp508's Avatar
scorp508
Team Owner
Supporting Lifetime Gold
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2000
Posts: 83,383
Likes: 87
From: Boston, MA
Default

From... http://forums.corvetteforum.com/c4-t...oss-brace.html




Reply
Old Sep 9, 2012 | 10:11 AM
  #11  
Aardwolf's Avatar
Aardwolf
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2004
Posts: 13,953
Likes: 706
From: WI
Default

I thought about doing something like that as well. Some tracks have noise restrictions though. Plus TTA power to weight really isn't that much. It doesn't look like I could have more power or less weight. Making it easier to work on would be good though!
Reply
Old Sep 9, 2012 | 01:03 PM
  #12  
Impala Balko's Avatar
Impala Balko
Melting Slicks
20 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: Feb 2005
Posts: 3,466
Likes: 41
From: Auburn MA
Default

Looks like that side exit would take away your rear jack points
Reply
Old Sep 9, 2012 | 03:11 PM
  #13  
Crepitus's Avatar
Crepitus
Drifting
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2009
Posts: 1,253
Likes: 4
From: East Wenatchee (2hours from n e where) WA
Default

A common setup on the short oval cars is to bring a single up through the floor and out the pass door. 3 1/2 for street stocks (375-425 hp) 4 and 4 1/2 for late models (a bit more)

My Vette will have a single 3 1/2 out the pass side rear much like a 951.

Last edited by Crepitus; Sep 9, 2012 at 03:13 PM.
Reply
Old Sep 9, 2012 | 07:07 PM
  #14  
Kubs's Avatar
Kubs
Thread Starter
Le Mans Master
15 Year Member
Community Builder
Community Favorite
Top Answer: 5
 
Joined: Oct 2007
Posts: 9,682
Likes: 3,434
From: Akron Ohio
2025 Corvette of the Year Finalist - Modified
2024 C5 of the Year Winner - Modified
2023 C5 of the Year Finalist - Modified
2022 C5 of the Year Finalist - Modified
St. Jude Donor '09-'10-'11
Default

Thanks for the pictures!! I was under the car today, and I would have to change the design of my current x-pipe to make this work the way I would like. I think I am going to put it on the back burner for now until I can redo the whole system maybe. Keep the pictures coming in case I decide to come back to it soon.

Originally Posted by Aardwolf
I thought about doing something like that as well. Some tracks have noise restrictions though. Plus TTA power to weight really isn't that much. It doesn't look like I could have more power or less weight. Making it easier to work on would be good though!
Yeah, most tracks measure db from the outside of the track so having both pipes go out the passenger side would make all the noise go to the inside of the track (at most tracks).

Originally Posted by Impala Balko
Looks like that side exit would take away your rear jack points
As it is now I jack up the whole side of the car from a spot in the middle. Having exhaust in the back will still allow me to jack up the side.

Originally Posted by Crepitus
A common setup on the short oval cars is to bring a single up through the floor and out the pass door. 3 1/2 for street stocks (375-425 hp) 4 and 4 1/2 for late models (a bit more)

My Vette will have a single 3 1/2 out the pass side rear much like a 951.
I have seen those setups, but my class rules do not allow me to alter the floor pan either. That makes my only option to go under the car.
Reply

Get notified of new replies

To X-Brace Picture Request





All times are GMT -4. The time now is 10:13 AM.

story-0
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-1
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-2
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-3
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-4
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-5
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-6
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-7
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-8
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-9
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE