Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com
 
Gen5DIY
Go Back   Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com > Technical Camaro Topics > Suspension / Brakes / Chassis

Suspension / Brakes / Chassis All suspension, brakes and chassis discussions.

Reply
 
Thread Tools
Old 01-11-2014, 02:56 PM   #1
Mvp_Me
I Use Three Pedals
 
Mvp_Me's Avatar
 
Drives: 2011 VR M6
Join Date: Apr 2013
Location: West Palm Beach, FL
Posts: 767
Tunnel brace Issue

I had my exhaust put on for about three weeks now and the tunnel brace is knocking bad. I checked under the car and it looks like he even bent it down so the piping wouldn't touch but it turns out that didn't work. So my question is, can i buy front and rear sway bars and take off the tunnel brace? or does anyone know of some material thats non flammable that i can tuck between the brace and the exhaust as a cushion?
I already checked out the Elite tunnel brace that should give you enough space to run 3" zost but my brace is already bent to about the same level so i think that would be a waste. any help would be appreciated, Thanks.
__________________
Mvp_Me is offline   Reply With Quote
Old 01-11-2014, 03:00 PM   #2
mlee
H-Town Camaro Club
 
mlee's Avatar
 
Drives: Number Twenty-Three
Join Date: Oct 2008
Location: Conroe, TX
Posts: 25,613
Quote:
Originally Posted by Mvp_Me View Post
I had my exhaust put on for about three weeks now and the tunnel brace is knocking bad. I checked under the car and it looks like he even bent it down so the piping wouldn't touch but it turns out that didn't work. So my question is, can i buy front and rear sway bars and take off the tunnel brace? or does anyone know of some material thats non flammable that i can tuck between the brace and the exhaust as a cushion?
I already checked out the Elite tunnel brace that should give you enough space to run 3" zost but my brace is already bent to about the same level so i think that would be a waste. any help would be appreciated, Thanks.
You should be able to add some spacers (washers) to give it some more room. You definitely don' want it hitting as it is known to set off the knock sensors and pull timing from your engine.
__________________
.
mlee is offline   Reply With Quote
Old 01-11-2014, 03:07 PM   #3
SSMickey
SECC
 
SSMickey's Avatar
 
Drives: 2010 IBM 2SS
Join Date: Feb 2010
Location: Columbia S.C.
Posts: 1,428
Sounds like your exhaust is not aligned correctly. Loosen it up and put a screw jack under it by the brace and raise it up a bit then tighten it down. That'll probably give you the room you need. If you still need a bit more, get a dropped brace or put washers on yours. Your installer should never have bent your factory brace. That's a hack move IMO.

And mlee is right about the knock sensor and pulling timing. Those sensors can detect the slightest rattle.
__________________
Vengeance Stage II Cam, Halltech CAI, RX Catch Can, Full ARH Exhaust, QTP Cutouts, Powerbond 25% Underdrive, MGW Shifter, MTI Drop Springs, Forgeline RB3C Wheels, 3.91 gears, Night Owl LED Control System
SSMickey is offline   Reply With Quote
Old 01-11-2014, 03:43 PM   #4
Mvp_Me
I Use Three Pedals
 
Mvp_Me's Avatar
 
Drives: 2011 VR M6
Join Date: Apr 2013
Location: West Palm Beach, FL
Posts: 767
Ok, thanks for the input. ill pick up some washers tomorrow and put them on sometime this week.
by any chance do you know what size washers i need? i never took a look at the size bolts for the brace.
__________________
Mvp_Me is offline   Reply With Quote
Old 01-11-2014, 03:52 PM   #5
SSMickey
SECC
 
SSMickey's Avatar
 
Drives: 2010 IBM 2SS
Join Date: Feb 2010
Location: Columbia S.C.
Posts: 1,428
Quote:
Originally Posted by Mvp_Me View Post
Ok, thanks for the input. ill pick up some washers tomorrow and put them on sometime this week.
by any chance do you know what size washers i need? i never took a look at the size bolts for the brace.
I may be lying to you, but I think there 10mm. If possible, I'd just pull a bolt and take it with you. That way your not like me and get home and find out you bought the wrong size and have to go back.
__________________
Vengeance Stage II Cam, Halltech CAI, RX Catch Can, Full ARH Exhaust, QTP Cutouts, Powerbond 25% Underdrive, MGW Shifter, MTI Drop Springs, Forgeline RB3C Wheels, 3.91 gears, Night Owl LED Control System
SSMickey is offline   Reply With Quote
Old 01-11-2014, 04:17 PM   #6
Mvp_Me
I Use Three Pedals
 
Mvp_Me's Avatar
 
Drives: 2011 VR M6
Join Date: Apr 2013
Location: West Palm Beach, FL
Posts: 767
Quote:
Originally Posted by SSMickey View Post
I may be lying to you, but I think there 10mm. If possible, I'd just pull a bolt and take it with you. That way your not like me and get home and find out you bought the wrong size and have to go back.
Very true. ill do that. Thanks again for the help
__________________
Mvp_Me is offline   Reply With Quote
Old 01-11-2014, 07:25 PM   #7
954camaro

 
954camaro's Avatar
 
Drives: Camaro SS/RS inferno red interior
Join Date: Mar 2012
Location: Pompano Beach FL
Posts: 771
Same exact problem dude I tried many things!
I tried the washers and the exhaust hit my stock tunnel brace.
Next, bought the elite tunnel brace....still didn't work.
Lastly, I loosed the clamps on my cat back and had a friend push up the exhaust while I tightened the clamp. I didn't look like it did much but it did work every blue moon it will still hit but It defiantly helped the most!
954camaro is offline   Reply With Quote
Old 01-11-2014, 08:59 PM   #8
Mvp_Me
I Use Three Pedals
 
Mvp_Me's Avatar
 
Drives: 2011 VR M6
Join Date: Apr 2013
Location: West Palm Beach, FL
Posts: 767
Quote:
Originally Posted by 954camaro View Post
Same exact problem dude I tried many things!
I tried the washers and the exhaust hit my stock tunnel brace.
Next, bought the elite tunnel brace....still didn't work.
Lastly, I loosed the clamps on my cat back and had a friend push up the exhaust while I tightened the clamp. I didn't look like it did much but it did work every blue moon it will still hit but It defiantly helped the most!
Yea, im going back to the exhaust shop monday and i will bring the washers to him and he better figure out the rest......for free!
__________________
Mvp_Me is offline   Reply With Quote
Old 01-11-2014, 09:28 PM   #9
austinscott
GM is in my blood..
 
austinscott's Avatar
 
Drives: 2011 IBM 1SS/RS LS3
Join Date: Aug 2013
Location: Austin Texas
Posts: 61
My 3" Stainlessworks system came with some 1/4" stainless spacers..... Maybe they will just sell the spacers?











Hope you get it figured out....

Scott
austinscott is offline   Reply With Quote
Old 01-11-2014, 09:49 PM   #10
Bo White



 
Bo White's Avatar
 
Drives: 2010 Summit White 1SS
Join Date: Feb 2012
Location: Vance Alabama
Posts: 3,544
I took mine off and threw it into the recycle pile along time ago.
__________________
Bo White is offline   Reply With Quote
Old 01-12-2014, 12:08 AM   #11
Mvp_Me
I Use Three Pedals
 
Mvp_Me's Avatar
 
Drives: 2011 VR M6
Join Date: Apr 2013
Location: West Palm Beach, FL
Posts: 767
Quote:
Originally Posted by Bo White View Post
I took mine off and threw it into the recycle pile along time ago.
What the!?? How does the car handle?





Quote:
Originally Posted by austinscott View Post
My 3" Stainlessworks system came with some 1/4" stainless spacers..... Maybe they will just sell the spacers?











Hope you get it figured out....

Scott
Thanx! Going to check it out now.


Sent from my SGH-T889 using Tapatalk
__________________
Mvp_Me is offline   Reply With Quote
Old 01-12-2014, 12:44 AM   #12
austinscott
GM is in my blood..
 
austinscott's Avatar
 
Drives: 2011 IBM 1SS/RS LS3
Join Date: Aug 2013
Location: Austin Texas
Posts: 61
Right on man...
I got all my stuff thru Chase over at APEX.. maybe hit him up and see if he can help get you just the spacers....
These things worked like a charm... even cleared the clamps...
Check it out....






Scott
austinscott is offline   Reply With Quote
Old 01-12-2014, 01:00 AM   #13
Mr pogo
 
Drives: 96 Imp SS, 13 Camaro 2SS AGM
Join Date: Dec 2012
Location: SoCal
Posts: 325
3/4" more room, no washers and looks great

http://www.camaro5.com/forums/showthread.php?t=295178
__________________
http://www.camaro5.com/forums/image.php?type=sigpic&userid=71668&dateline=136924  9466
Mr pogo is offline   Reply With Quote
Old 01-12-2014, 02:14 AM   #14
austinscott
GM is in my blood..
 
austinscott's Avatar
 
Drives: 2011 IBM 1SS/RS LS3
Join Date: Aug 2013
Location: Austin Texas
Posts: 61
Quote:
Originally Posted by Mr pogo View Post
3/4" more room, no washers and looks great

http://www.camaro5.com/forums/showthread.php?t=295178

Now that is nice..... a step above the spacers.... might just get one & sell the spacers...
austinscott is offline   Reply With Quote
Old 01-12-2014, 03:30 AM   #15
mdub76
 
mdub76's Avatar
 
Drives: 2010 2ss/RS IOM GFX 21" rim M6
Join Date: Jul 2011
Location: virginia
Posts: 143
Quote:
Originally Posted by Bo White View Post
I took mine off and threw it into the recycle pile along time ago.
+1 did the same thing. Just junk it. It really does nothing
mdub76 is offline   Reply With Quote
Old 01-12-2014, 05:55 AM   #16
blake-b

 
blake-b's Avatar
 
Drives: Black 2010 2SS/RS LS3
Join Date: May 2010
Location: Kansas City, MO
Posts: 1,731
Quote:
Originally Posted by Mr pogo View Post
3/4" more room, no washers and looks great

http://www.camaro5.com/forums/showthread.php?t=295178
I have the same one. Very nice piece.
blake-b is offline   Reply With Quote
Old 01-12-2014, 07:31 AM   #17
Mvp_Me
I Use Three Pedals
 
Mvp_Me's Avatar
 
Drives: 2011 VR M6
Join Date: Apr 2013
Location: West Palm Beach, FL
Posts: 767
Quote:
Originally Posted by Mr pogo View Post
3/4" more room, no washers and looks great

http://www.camaro5.com/forums/showthread.php?t=295178
Now that is a nice peace!

But since people are saying it doesn't do much i might just take it off. i don't autocross or anything, at most spirited driving and a little on and off on ramp fun.
__________________
Mvp_Me is offline   Reply With Quote
Old 01-12-2014, 08:45 AM   #18
Bo White



 
Bo White's Avatar
 
Drives: 2010 Summit White 1SS
Join Date: Feb 2012
Location: Vance Alabama
Posts: 3,544
Other than being able to angle my mufflers the way I want them I never notice its gone. The OBX cat back on my car fits OK for my taste but when the exhaust is pushed up high enough to clear the bracket I don't like the angle of the tips no matter how I turned the mufflers. I worked at Midas for years and could have cut the exhaust and redone a couple of pipes but not over some stupid bracket lol.
__________________
Bo White is offline   Reply With Quote
Old 01-12-2014, 09:55 AM   #19
Mvp_Me
I Use Three Pedals
 
Mvp_Me's Avatar
 
Drives: 2011 VR M6
Join Date: Apr 2013
Location: West Palm Beach, FL
Posts: 767
Quote:
Originally Posted by Bo White View Post
Other than being able to angle my mufflers the way I want them I never notice its gone. The OBX cat back on my car fits OK for my taste but when the exhaust is pushed up high enough to clear the bracket I don't like the angle of the tips no matter how I turned the mufflers. I worked at Midas for years and could have cut the exhaust and redone a couple of pipes but not over some stupid bracket lol.
Good to know because i don't want to be swaying going around corners like a boat on rough seas

Plus when i get my tax return im going to lower the car and put front and rear sway bars on so shell tighten up regardless.
__________________
Mvp_Me is offline   Reply With Quote
Old 01-12-2014, 12:06 PM   #20
SSMickey
SECC
 
SSMickey's Avatar
 
Drives: 2010 IBM 2SS
Join Date: Feb 2010
Location: Columbia S.C.
Posts: 1,428
There has been several debates on the tunnel brace on this site. IMO, it does nothing to stiffen the chassis during normal driving. It might help a bit if the car is pushed hard during a track day though. I believe it's sole purpose is to help with chassis rigidity during a collision. I could have used washers on the factory one since my exhaust is tucked up pretty tight, but chose to replace it with one from Elite Engineering. I don't think GM would have installed it "just because" so I left it on.
__________________
Vengeance Stage II Cam, Halltech CAI, RX Catch Can, Full ARH Exhaust, QTP Cutouts, Powerbond 25% Underdrive, MGW Shifter, MTI Drop Springs, Forgeline RB3C Wheels, 3.91 gears, Night Owl LED Control System
SSMickey is offline   Reply With Quote
Old 01-12-2014, 12:58 PM   #21
Mvp_Me
I Use Three Pedals
 
Mvp_Me's Avatar
 
Drives: 2011 VR M6
Join Date: Apr 2013
Location: West Palm Beach, FL
Posts: 767
Quote:
Originally Posted by SSMickey View Post
There has been several debates on the tunnel brace on this site. IMO, it does nothing to stiffen the chassis during normal driving. It might help a bit if the car is pushed hard during a track day though. I believe it's sole purpose is to help with chassis rigidity during a collision. I could have used washers on the factory one since my exhaust is tucked up pretty tight, but chose to replace it with one from Elite Engineering. I don't think GM would have installed it "just because" so I left it on.
This is true. what ill do is take it off tomorrow and see how she feels, if i notice a difference ill order the Halo one and be done with.
__________________
Mvp_Me is offline   Reply With Quote
Old 01-12-2014, 04:33 PM   #22
Bo White



 
Bo White's Avatar
 
Drives: 2010 Summit White 1SS
Join Date: Feb 2012
Location: Vance Alabama
Posts: 3,544
You will never know its gone. Even in a collision. On the second Gen camaro you have to take the z bars off for header clearance. If you had to take this bracket off fir headers we wouldn't be debating it.
__________________
Bo White is offline   Reply With Quote
Old 01-12-2014, 05:05 PM   #23
axis
Search Ninja
 
axis's Avatar
 
Drives: 2010 Black 2SS/RS A6
Join Date: Oct 2009
Location: Central Ark
Posts: 7,191
Quote:
Originally Posted by Bo White View Post
You will never know its gone. Even in a collision. On the second Gen camaro you have to take the z bars off for header clearance. If you had to take this bracket off fir headers we wouldn't be debating it.
I beg to differ. Several on here, myself included could tell a difference in the car with it on vs off. It's not like it's flexing going down the road but it does handle differently in the corners. I will say that it's probably more noticeable once you have some stiffer sways installed. The stock sways allow a lot more chassis movement in the corners.

As has been said in this and all 1000 tunnel brace thread, it's there for a reason and it does what's it's suppose to do. While i'm not one to say "since the manufacturer put it there, it has to do something important" but IMO this is one of those things. Many run without it and that's their prerogative, but it doesn't make sense to me that people spend hundreds, if not thousands on suspension mods to stiffen up their cars, then throw something that braces the tunnel in the trash.
__________________
2010 Black 2SS/RS A6
Halltech CF 102 fed
GPI modded intake manifold
Bo (knows) White ported TB
Kooks LT's/ Dynomax VT
Pfadted (springs/sways)
Dyno tuned by Rhino and GPI

I once parallel parked a train.
axis is offline   Reply With Quote
Old 01-12-2014, 05:41 PM   #24
Fast6.3
 
Fast6.3's Avatar
 
Drives: 2011 2ssrs vert 2010 silverado 6.3
Join Date: Aug 2012
Location: El paso texas
Posts: 607
Quote:
Originally Posted by axis View Post
I beg to differ. Several on here, myself included could tell a difference in the car with it on vs off. It's not like it's flexing going down the road but it does handle differently in the corners. I will say that it's probably more noticeable once you have some stiffer sways installed. The stock sways allow a lot more chassis movement in the corners.

As has been said in this and all 1000 tunnel brace thread, it's there for a reason and it does what's it's suppose to do. While i'm not one to say "since the manufacturer put it there, it has to do something important" but IMO this is one of those things. Many run without it and that's their prerogative, but it doesn't make sense to me that people spend hundreds, if not thousands on suspension mods to stiffen up their cars, then throw something that braces the tunnel in the trash.
+1^^^^
__________________
[SIGPIC][tsp 2" headers no cats solo axel back magnaflow x halltec cai with apex scoop pfadtted suspension
Fast6.3 is offline   Reply With Quote
Old 01-12-2014, 06:41 PM   #25
Bo White



 
Bo White's Avatar
 
Drives: 2010 Summit White 1SS
Join Date: Feb 2012
Location: Vance Alabama
Posts: 3,544
Like I said, if it was something that had to be perminately removed to be able to install an aftermarket performance part it wouldn't be near as big of a debate. Just about every vehicle I've owned in the last 25 years I've had to do something like this, this vehicle is no different. Its a foot long stamped piece of steel with 4 low grade bolts. Chunk it/don't chunk- its your car. The front and rear sub frame and cradle are there bolted to the body so its not like the car is going spread.
__________________
Bo White is offline   Reply With Quote
 
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 09:52 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2015, vBulletin Solutions, Inc.