Corvette Performance
C5 | Z06 | C6 | ZR1 | C7

Corvette Garage Backbone Plate

Thread Tools
 
Search this Thread
 
Old Nov 11, 2004 | 11:28 PM
  #1  
C5 Forever's Avatar
Thread Starter
Launching!
 
Joined: May 2004
Posts: 256
Likes: 0
Default Corvette Garage Backbone Plate

Is anyone running this yet? If so, how do you like it. I imagine it should stiffen up the car a bit.
Reply
Old Nov 19, 2004 | 06:54 AM
  #2  
vettenuts's Avatar
TECH Senior Member
iTrader: (4)
 
Joined: Jul 2004
Posts: 8,092
Likes: 13
From: Little Rhody
Default

I am running a Backbone from VnM and the change is very noticable.
Reply
Old Nov 19, 2004 | 05:18 PM
  #3  
C5 Forever's Avatar
Thread Starter
Launching!
 
Joined: May 2004
Posts: 256
Likes: 0
Default

Who's VnM? I've never heard of them.
Reply
Old Nov 21, 2004 | 10:45 AM
  #4  
REDGAR's Avatar
9 Second Club
 
Joined: Feb 2002
Posts: 2,252
Likes: 0
From: Tampa, FL
Default

more info on the backbone plate please?
Reply
Old Nov 22, 2004 | 04:11 AM
  #5  
vettenuts's Avatar
TECH Senior Member
iTrader: (4)
 
Joined: Jul 2004
Posts: 8,092
Likes: 13
From: Little Rhody
Default

VnM is VettesnMore, Mark Dawson. Plate is 1/8" stainless steel with a ceramic coating.
Reply
Old Nov 22, 2004 | 08:54 AM
  #6  
FreighTrain T/A's Avatar
TECH Apprentice
iTrader: (1)
 
Joined: Aug 2004
Posts: 370
Likes: 0
From: Damascus, Maryland
Default

what does it do if you dont mind a rookie question??.
Reply
Old Nov 22, 2004 | 11:03 AM
  #7  
REDGAR's Avatar
9 Second Club
 
Joined: Feb 2002
Posts: 2,252
Likes: 0
From: Tampa, FL
Default

Crypt, I found this that may help http://forums.corvetteforum.com/showthread.php?t=933247
Reply
Old Nov 22, 2004 | 11:20 AM
  #8  
FreighTrain T/A's Avatar
TECH Apprentice
iTrader: (1)
 
Joined: Aug 2004
Posts: 370
Likes: 0
From: Damascus, Maryland
Default

Looks almost useless. I dont know what its ment to do but it looks more like a heat sheild for our center counsols than anything else.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-4

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-5

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
Old Nov 22, 2004 | 02:37 PM
  #9  
REDGAR's Avatar
9 Second Club
 
Joined: Feb 2002
Posts: 2,252
Likes: 0
From: Tampa, FL
Default

Looks like it's first purpose is to stiffen the chassis and the second is as a heat barrier.
Reply
Old Nov 22, 2004 | 07:41 PM
  #10  
Snow Dog's Avatar
TECH Resident
iTrader: (3)
 
Joined: May 2004
Posts: 895
Likes: 1
Default

interesting. i would think its along the lines of subframe connectors for fbodies. its a proven part, but it doesnt make the biggest impact like stiffer shocks or sway bars.

with over forty bolts holding it, it was and is intended to be a brace. however in that link the guy says it marries the suspension to the body. the tunnel cover is on the body only. doesnt touch the suspension at all. just stiffens the body even more.
Reply
Old Nov 23, 2004 | 04:11 AM
  #11  
vettenuts's Avatar
TECH Senior Member
iTrader: (4)
 
Joined: Jul 2004
Posts: 8,092
Likes: 13
From: Little Rhody
Default

Originally Posted by REDGAR
Yep, thats the one I installed. It actually is very noticable when you install it. The car feels much tighter. Note that the C6 has a stiffer plate than the C5 so GM must have been aware of the advantage.
Reply
Old Nov 23, 2004 | 06:59 AM
  #12  
FreighTrain T/A's Avatar
TECH Apprentice
iTrader: (1)
 
Joined: Aug 2004
Posts: 370
Likes: 0
From: Damascus, Maryland
Default

Okay. Now here is another question. Are there any issues with ground clearance on a car that has been lowered using stock bolts and with long tube headers??? Does this piece fit with out having to bend the long tubes at all??
Reply
Old Nov 23, 2004 | 02:52 PM
  #13  
vettenuts's Avatar
TECH Senior Member
iTrader: (4)
 
Joined: Jul 2004
Posts: 8,092
Likes: 13
From: Little Rhody
Default

Yes, it is tucked way up in the tunnel above the pipes.
Reply
Old Nov 23, 2004 | 06:55 PM
  #14  
Snow Dog's Avatar
TECH Resident
iTrader: (3)
 
Joined: May 2004
Posts: 895
Likes: 1
Default

you wont have any ground clearence problems on a lowered vette with long tube headers. the problem you will have is getting a jack under the side. youll need to drive up onto small peices wood or ramps.
Reply
Old Nov 24, 2004 | 06:48 AM
  #15  
FreighTrain T/A's Avatar
TECH Apprentice
iTrader: (1)
 
Joined: Aug 2004
Posts: 370
Likes: 0
From: Damascus, Maryland
Default

Originally Posted by Snow Dog
you wont have any ground clearence problems on a lowered vette with long tube headers. the problem you will have is getting a jack under the side. youll need to drive up onto small peices wood or ramps.

having that issue now. I was only wondering about the plate if it bending the long tubes needed to be done to make this fit correctly.
Reply
Old Nov 24, 2004 | 10:41 AM
  #16  
vettenuts's Avatar
TECH Senior Member
iTrader: (4)
 
Joined: Jul 2004
Posts: 8,092
Likes: 13
From: Little Rhody
Default

Not sure I understand your question, but for further background there are actually several plates out there. Some are stainless and some are aluminum, with the aluminum being thicker. If you have marginal clearance between the O2's and the tunnel plate now, then the thinner stainless plate is probably your best candidate. One other note if you have LG's already installed, I have read from some that installing the plate with those headers (and the Dynatech's too) is very difficult and the headers may have to come off first.
Reply
Old Nov 24, 2004 | 11:05 AM
  #17  
FreighTrain T/A's Avatar
TECH Apprentice
iTrader: (1)
 
Joined: Aug 2004
Posts: 370
Likes: 0
From: Damascus, Maryland
Default

Originally Posted by vettenuts
Not sure I understand your question, but for further background there are actually several plates out there. Some are stainless and some are aluminum, with the aluminum being thicker. If you have marginal clearance between the O2's and the tunnel plate now, then the thinner stainless plate is probably your best candidate. One other note if you have LG's already installed, I have read from some that installing the plate with those headers (and the Dynatech's too) is very difficult and the headers may have to come off first.
What my concern was is how thick the plate is to sit above the headers. From my understanding all aftermarket headers sit well tucked under our cars. Now you add lets say 1/8 or 1/4 inch making the headers to have to clear that as well. I don’t have headers now but if I were to buy the plate and headers I don’t want the headers or collectors to rub against the plate an dthen have to bend the headers or compromise something else. That’s why I was asking if the headers needed to be bent. I should have clarified. I apologize.

You say they make different plates in different metals. Now if you’re doing this mod what metal and thickness has been proven to work most effectively.

Last edited by Crypt keeper; Nov 24, 2004 at 11:35 AM.
Reply
Old Nov 24, 2004 | 01:32 PM
  #18  
vettenuts's Avatar
TECH Senior Member
iTrader: (4)
 
Joined: Jul 2004
Posts: 8,092
Likes: 13
From: Little Rhody
Default

Originally Posted by Crypt keeper
You say they make different plates in different metals. Now if you’re doing this mod what metal and thickness has been proven to work most effectively.
Well, this is actually a big argument. The stainless should be stiffer due to the different material modulus and according to my calcs you would need triple the thickness of aluminum to equal the stainless. Being thinner, and coated as a bonus, I went this way just in case my O2 sensors got too close. On the system I chose (QTP's), you can rotate the pipes that have the rear O2 sensors so it was very easy to ensure this was not an issue. Also, on the QTP's, the front sensors are forward of the plate and not an issue. On the Dynatechs they are angled and directly under the plate. Several have indicated that the stock plate had to be dimpled with a hammer to fit the front sensors in. I didn't like that option at all. Not sure on other header systems, but very few have complained about the plate getting in the way.
Reply




All times are GMT -5. The time now is 07:37 PM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-6
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-7
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-8
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE