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

Drag race susp. question

Thread Tools
 
Search this Thread
 
Old Oct 16, 2004 | 01:02 PM
  #1  
Corvette Kid's Avatar
Corvette Kid
Thread Starter
Large Impressive Member
Supporting Lifetime Gold
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2003
Posts: 65,811
Likes: 71
From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Default Drag race susp. question

Is there any advantage on these cars to be gained by unhooking the front and/or rear sway bars for dragging? Anyone doing this or have tried it? I'll be running DRs, 3.07s and still the stock converter at this time. I also have poly bushings in the rear susp. and no drag shocks or anything else drag specific, suspension-wise. I am going to lower the back a little.
Reply
Old Oct 16, 2004 | 02:09 PM
  #2  
bogus's Avatar
bogus
Team Owner
25 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Default

I would not lower the rear any... seems counter intutive to me.
Reply
Old Oct 16, 2004 | 02:16 PM
  #3  
VTESPEED's Avatar
VTESPEED
Racer
20 Year Member
 
Joined: May 2004
Posts: 375
Likes: 2
From: CA CA
Default

I took the front sway bar off and saw a nice gain in front end lift on the launch..seems to work well.

I wouldnt lower the rear...
Reply
Old Oct 16, 2004 | 02:17 PM
  #4  
Corvette Kid's Avatar
Corvette Kid
Thread Starter
Large Impressive Member
Supporting Lifetime Gold
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2003
Posts: 65,811
Likes: 71
From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Default

Well I'm doing it anyway, for general handling but it doesn't seem that it would hurt for dragging either, as far as weight transfer goes. Am I wrong? Admittedly, I've never dragged an IRS car before. Are you online, Mr Mo? You da' man!

Last edited by Corvette Kid; Oct 16, 2004 at 02:19 PM.
Reply
Old Oct 16, 2004 | 02:45 PM
  #5  
65Z01's Avatar
65Z01
Team Owner
20 Year Member
 
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Default

Dropping the front sway bar will remove some weight but I don't see any other advantage as both front wheels lift the same on launch.

I've lowered the rear of my '88 and it certainly didn't hurt launch, may have halped a little and certainly looks much better.

What pressure are you running in your DRs and what size DRs?? Do you launch off idle and let the TC flash up to stall or do you preload the suspension a little before launch?

Are you having hookup problems with your DRs?
Reply
Old Oct 16, 2004 | 02:54 PM
  #6  
JUAN J SANCHEZ's Avatar
JUAN J SANCHEZ
Burning Brakes
 
Joined: Dec 2002
Posts: 947
Likes: 0
From: Middletown N.Y.
Default

I'm looking to do Drag mods to my rear end also. I purchased lower camber brackets( different offset) that should help and I'm wondering if modified trailing arm brackets would work? I have all poly bushings plus, cryoed inner, outer axles, diff internals 3.73's and beefier steel (mild) halfshafts with solid u-joints and a Vette Brakes toe kit. I really want to lower the car and I'm hoping it doesn't hurt traction. Does anyone have any idea what is done to the trailing arm brackets for drag racing, this seems to be a 4 link style but I'd think it works differently?

Last edited by JUAN J SANCHEZ; Oct 16, 2004 at 02:58 PM.
Reply
Old Oct 16, 2004 | 03:06 PM
  #7  
Corvette Kid's Avatar
Corvette Kid
Thread Starter
Large Impressive Member
Supporting Lifetime Gold
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2003
Posts: 65,811
Likes: 71
From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Default

Originally Posted by JUAN J SANCHEZ
I'm looking to do Drag mods to my rear end also. I purchased lower camber brackets( different offset) that should help and I'm wondering if modified trailing arm brackets would work? I have all poly bushings plus, cryoed inner, outer axles, diff internals 3.73's and beefier steel (mild) halfshafts with solid u-joints and a Vette Brakes toe kit. I really want to lower the car and I'm hoping it doesn't hurt traction. Does anyone have any idea what is done to the trailing arm brackets for drag racing, this seems to be a 4 link style but I'd think it works differently?
Yes, it's a four link and I'd think an adjustable 4-link would be great. DRM has brackets to relocate the trailing arms and the camber arms. I'll just be dragging for fun and to see what it'll do but I think those camber brackets and modded trailing arm brackets would be great though. Let us know how they work out, they're on my wish list for later. And 65ZO1, I haven't been there yet but have some 275 Nitto DRs on 9.5 sawblades and thought I'd start at 20 psi and go from there. The guy I bought them from said they worked well for him at 17.
Reply
Old Oct 16, 2004 | 08:03 PM
  #8  
65Z01's Avatar
65Z01
Team Owner
20 Year Member
 
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Default

Maybe 20psi will be ok with the wider tread. When I tried the 255x16 BFGs from my IROC on the Vette I had to drop to 17psi to get reliable hookup. And that even failed after the sun went down, but then I don't have a line-lock to realy heat em up.
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 Oct 16, 2004 | 09:35 PM
  #9  
cicch95's Avatar
cicch95
Melting Slicks
20 Year Member
Veteran: Air Force
Liked
Loved
 
Joined: Jul 2003
Posts: 3,226
Likes: 49
From: Pomfret, CT
Finalist 2020 C4 of the Year - Unmodified
Default

Unbolting the front sway bar will allow the front to spring up more freely and quicker, producing better weight transfer. Taking it out completely gets rid of weight. I wouldn't touch the rear! Just my .02.

-Rick
Reply
Old Oct 16, 2004 | 10:16 PM
  #10  
Mr Mojo's Avatar
Mr Mojo
Elite Torch Red Member
Supporting Lifetime Gold
25 Year Member
 
Joined: Sep 1999
Posts: 57,805
Likes: 23
From: Exit 89 GSP,Lakewood,NJ The Land Of Mojo
Cental/South NJ Events Coordinator
CI 1-2-3-4-5-6-7-8-9-10-11-12 Vet
CI-II Burnout & Drag Champ
St. Jude Donor '03-'04-'05-'06-'07
Default

With my car, removing the sway bar didn't give me any gains, but for some strange reason it got more consistent. There are plenty of guys still running with it on. You can try disconnecting it first and trying it out before committing to removing it. It's not hard, but on jackstands it can get tricky.

I took mine off for a cleaner looking car,less things to get in the way.
Reply
Old Oct 17, 2004 | 01:26 PM
  #11  
Corvette Kid's Avatar
Corvette Kid
Thread Starter
Large Impressive Member
Supporting Lifetime Gold
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2003
Posts: 65,811
Likes: 71
From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Default

Originally Posted by Mr Mojo
With my car, removing the sway bar didn't give me any gains, but for some strange reason it got more consistent. There are plenty of guys still running with it on. You can try disconnecting it first and trying it out before committing to removing it. It's not hard, but on jackstands it can get tricky.

I took mine off for a cleaner looking car,less things to get in the way.
Well I would just unhook mine anyway as I wouldn't want to remove it permanently for my purposes. Do you run 90/10s or anything in the front? How about the rear, anything special? I wouldn't mind changing shocks for the track if I raced a few times a year.
Reply
Old Oct 17, 2004 | 01:52 PM
  #12  
James94LT1's Avatar
James94LT1
Burning Brakes
 
Joined: Apr 2002
Posts: 934
Likes: 0
From: MO
Default

When the car was my daily driver I would simply unhook the sway bar and pull it forward. Easy to do at track. Now I just removed it completely. 2 15mm bolts if I remember right.
Reply
Old Oct 17, 2004 | 08:39 PM
  #13  
CORKVETTE1's Avatar
CORKVETTE1
Melting Slicks
10 Year Member
 
Joined: Sep 2000
Posts: 3,099
Likes: 0
From: PITTSBURGH PA
Cruise-In IV Veteran
Cruise-In V Veteran
Default

take off the front sway bar
the rear depends on how hard it leaves if it can or will leave violent then jack up the rear if it leaves soft leave it alone
Reply
Old Oct 18, 2004 | 07:50 PM
  #14  
Corvette Kid's Avatar
Corvette Kid
Thread Starter
Large Impressive Member
Supporting Lifetime Gold
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2003
Posts: 65,811
Likes: 71
From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Default

Originally Posted by CORKVETTE1
take off the front sway bar
the rear depends on how hard it leaves if it can or will leave violent then jack up the rear if it leaves soft leave it alone
It probably won't leave TOO violently until I upgrade from the stock converter!
Reply
Old Oct 18, 2004 | 08:14 PM
  #15  
Mr Mojo's Avatar
Mr Mojo
Elite Torch Red Member
Supporting Lifetime Gold
25 Year Member
 
Joined: Sep 1999
Posts: 57,805
Likes: 23
From: Exit 89 GSP,Lakewood,NJ The Land Of Mojo
Cental/South NJ Events Coordinator
CI 1-2-3-4-5-6-7-8-9-10-11-12 Vet
CI-II Burnout & Drag Champ
St. Jude Donor '03-'04-'05-'06-'07
Default

Still have the stock shocks all the way around. Well the fronts were changed by one of the previous owners, but I have no idea what they are.

You can see here how soft the car leaves with the bar out.

http://www.challengevideos.com/2004/...4event08_B.wmv

Pics of me launching below.
Attached Images   
Reply
Old Oct 18, 2004 | 08:19 PM
  #16  
Mr Mojo's Avatar
Mr Mojo
Elite Torch Red Member
Supporting Lifetime Gold
25 Year Member
 
Joined: Sep 1999
Posts: 57,805
Likes: 23
From: Exit 89 GSP,Lakewood,NJ The Land Of Mojo
Cental/South NJ Events Coordinator
CI 1-2-3-4-5-6-7-8-9-10-11-12 Vet
CI-II Burnout & Drag Champ
St. Jude Donor '03-'04-'05-'06-'07
Default

On the other hand, here is my six speed car with the swaybar still on and connected.
Attached Images  
Reply

Get notified of new replies

To Drag race susp. question





All times are GMT -4. The time now is 05:00 PM.

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