Drag Racing Tech
Sponsored by:
Sponsored by:

Damn suspension!!!!

Thread Tools
 
Search this Thread
 
Old Aug 24, 2010 | 09:50 PM
  #41  
Wicked94Z's Avatar
10 Second Club
iTrader: (26)
 
Joined: Jul 2005
Posts: 3,725
Likes: 1
From: Spokane, Wa
Default

Originally Posted by Mikey 97Z M6
Tire pressure didn't make any difference. I tried as high as 22 and as low as 14 before the tire started to slip on the wheel. The 60' seemed to like 15 the best. Part of the problem was the short sidewalls on the 26" tires. I run 28" (s) now with Afco d/a's.

Mike
I think you're right on. I had this issue with my ET Streets at 14 pounds, crunching the sidewall and unloading, and those were 28x12.50 (10.50) with QA1 12 ways on 7. Stick cars need a DA on the rear to control that hit. AC... even when you go auto i'd stick a stiffwall slick on there, or if you want the QTPs throw a tube in there.
Reply
Old Aug 24, 2010 | 09:52 PM
  #42  
02sleeperz28's Avatar
9 Second Club
iTrader: (26)
 
Joined: Aug 2006
Posts: 1,833
Likes: 0
From: homeless
Default

Originally Posted by 98blueSScamaro
Ac here is some info. When the car has the first hit (you letting the clutch out) you want the tire to take the shock. Not the shock. Thats why with a well setup car off the line you will see the tire and rear and the body push away alittle bit. I know your m6 But watch this vid Of chris right at 2.15 sec to 2.16 you can see what i am talking about.http://www.youtube.com/watch?v=iYq4bOPDoaU

But alot comes into play. How the car sit's TQ arm angle LCA angle's and so on. Best way to get the car to hook Is find the live center of the car. Soon i will be doing this to my car. And scaling it.

And Steve Madman Whats the best way to go about and setting up the live center of a m6 Car??? I am new to this but I am learning.
Thanks for the video. It appears as if the body of the car is lifting in the rear on the take off.
Reply
Old Aug 24, 2010 | 09:59 PM
  #43  
98blueSScamaro's Avatar
11 Second Club
iTrader: (14)
 
Joined: May 2007
Posts: 1,660
Likes: 1
From: Aurora IL
Default

Originally Posted by Wicked94Z
I think you're right on. I had this issue with my ET Streets at 14 pounds, crunching the sidewall and unloading, and those were 28x12.50 (10.50) with QA1 12 ways on 7. Stick cars need a DA on the rear to control that hit. AC... even when you go auto i'd stick a stiffwall slick on there, or if you want the QTPs throw a tube in there.
And yes Any car that is hitting the tire hard or any car over 3100lbs i would run a stiff side wall
Reply
Old Aug 24, 2010 | 10:00 PM
  #44  
AChotrod's Avatar
Thread Starter
11 Second Club
iTrader: (17)
 
Joined: Jul 2008
Posts: 9,896
Likes: 1
From: Chicago area
Default

Originally Posted by 02sleeperz28
Thanks for the video. It appears as if the body of the car is lifting in the rear on the take off.
Thats what mine used to do. Just found the old springs ill go to work on it soon.
Reply
Old Aug 24, 2010 | 10:03 PM
  #45  
98blueSScamaro's Avatar
11 Second Club
iTrader: (14)
 
Joined: May 2007
Posts: 1,660
Likes: 1
From: Aurora IL
Default

Originally Posted by AChotrod
Thats what mine used to do. Just found the old springs ill go to work on it soon.
And ac just so you know i run the stock in the rear and they work great.
Reply
Old Aug 24, 2010 | 10:05 PM
  #46  
02sleeperz28's Avatar
9 Second Club
iTrader: (26)
 
Joined: Aug 2006
Posts: 1,833
Likes: 0
From: homeless
Default

Originally Posted by AChotrod
Thats what mine used to do. Just found the old springs ill go to work on it soon.
Well get those springs back on ASAP. lol Take a video of it if you can.
Reply
Old Aug 24, 2010 | 10:07 PM
  #47  
AChotrod's Avatar
Thread Starter
11 Second Club
iTrader: (17)
 
Joined: Jul 2008
Posts: 9,896
Likes: 1
From: Chicago area
Default

I just didnt like the ride height but now I think I need it no matter what.
Reply
Old Aug 24, 2010 | 10:09 PM
  #48  
1BADAIR's Avatar
10 Second Club
iTrader: (1)
 
Joined: Jan 2003
Posts: 1,902
Likes: 1
From: oxford, Michigan
Default

Originally Posted by AChotrod
I just didnt like the ride height but now I think I need it no matter what.
raising it will also add antisquat and change instant center.
measure the angle of your lca's before and after
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

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

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

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

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Aug 24, 2010 | 10:11 PM
  #49  
AChotrod's Avatar
Thread Starter
11 Second Club
iTrader: (17)
 
Joined: Jul 2008
Posts: 9,896
Likes: 1
From: Chicago area
Default

Will do!!
Reply
Old Aug 24, 2010 | 10:12 PM
  #50  
98blueSScamaro's Avatar
11 Second Club
iTrader: (14)
 
Joined: May 2007
Posts: 1,660
Likes: 1
From: Aurora IL
Default

Originally Posted by AChotrod
I just didnt like the ride height but now I think I need it no matter what.
Vid of my pass
http://s27.photobucket.com/albums/c1...ueSScamaro.mp4

And pics of how my car looks with stock springs uncut.
Reply
Old Aug 24, 2010 | 10:18 PM
  #51  
robsquikz28's Avatar
TECH Veteran
iTrader: (246)
 
Joined: Mar 2008
Posts: 4,984
Likes: 1
From: Chicago/Crown point
Default

The vid was old and definately discussed in his thread, those tires are really low and that was his biggest problem.
Reply
Old Aug 24, 2010 | 10:18 PM
  #52  
98blueSScamaro's Avatar
11 Second Club
iTrader: (14)
 
Joined: May 2007
Posts: 1,660
Likes: 1
From: Aurora IL
Default

pics of my car
Attached Thumbnails Damn suspension!!!!-dscf0540.jpg   Damn suspension!!!!-dscf0539.jpg  
Reply
Old Aug 24, 2010 | 11:19 PM
  #53  
AChotrod's Avatar
Thread Starter
11 Second Club
iTrader: (17)
 
Joined: Jul 2008
Posts: 9,896
Likes: 1
From: Chicago area
Default

Springs are in hope it settles a bit, gonna check the front shocks now.
Reply
Old Aug 24, 2010 | 11:46 PM
  #54  
AChotrod's Avatar
Thread Starter
11 Second Club
iTrader: (17)
 
Joined: Jul 2008
Posts: 9,896
Likes: 1
From: Chicago area
Default

Ok I must be crazy but it does say comp on the alum ****, maybe I didnt know or got confuzed which **** does what. Anyways it was set 6 clicks to the right on comp and 2 on the plastic **** I set it at 9 comp and 0 rebound. Hope that helps with the bottoming in the front wheel well.
Reply
Old Aug 25, 2010 | 12:53 AM
  #55  
1BADAIR's Avatar
10 Second Club
iTrader: (1)
 
Joined: Jan 2003
Posts: 1,902
Likes: 1
From: oxford, Michigan
Default

just turn the same two up and then push down on the car. not hard to feel which one does compression
Reply
Old Aug 25, 2010 | 06:14 AM
  #56  
tektrans's Avatar
9 Second Club
iTrader: (23)
 
Joined: Nov 2003
Posts: 3,377
Likes: 0
Default

You can use the springs you want. Just throw in a set of air bags and you can adjust your ride height and stiffness at the track with just the bags. $100-easy :wink:

With a drag bar just be sure to run 2 separate fill lines so they don't share air.
It's a good alternative I think to guessing on a rear spring rate/height. I use them in my car. 1.29 60's
Reply
Old Aug 25, 2010 | 10:53 AM
  #57  
AChotrod's Avatar
Thread Starter
11 Second Club
iTrader: (17)
 
Joined: Jul 2008
Posts: 9,896
Likes: 1
From: Chicago area
Default

98bluess Car looks good!

Tektrans If the stock springs dont work out and I just cant stand the look anymore airbags are in the near future.
Reply
Old Aug 25, 2010 | 11:13 AM
  #58  
chrs1313's Avatar
10 Second Club
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (24)
 
Joined: Feb 2005
Posts: 5,703
Likes: 13
Default

you guys and your aftermarket rear shocks & springs...

sorry had to haha

a4 life is alot easier, but my car is rockin a truck 4x4 ride height
Reply
Old Aug 25, 2010 | 11:17 AM
  #59  
chrs1313's Avatar
10 Second Club
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (24)
 
Joined: Feb 2005
Posts: 5,703
Likes: 13
Default

Originally Posted by 98blueSScamaro
pics of my car
i can't wait to tear into her soon
Reply
Old Aug 25, 2010 | 12:08 PM
  #60  
Mikey 97Z M6's Avatar
11 Second Club
iTrader: (37)
 
Joined: Mar 2004
Posts: 2,046
Likes: 3
From: Vancouver, WA
Default

Originally Posted by 98blueSScamaro
Ac here is some info. When the car has the first hit (you letting the clutch out) you want the tire to take the shock. Not the shock. Thats why with a well setup car off the line you will see the tire and rear and the body push away alittle bit. I know your m6 But watch this vid Of chris right at 2.15 sec to 2.16 you can see what i am talking about.
A clutch car does the exact same thing as the car in that vid you posted (anti-squat, also called separation), it just happens much more quickly and violently. If I posted up that vid of mine at normal speed you wouldn't even see that the tire is being flattend out. That is why it's more important to have a good d/a shock on a clutch car. You need to have the capability to slow down the compression once the tire plants so that it doesn't bounce up and unload as quickly. In the case with my video, you can also use the d/a shock to control how hard the tire plants by stiffening up the rebound (extension).

Mike
Reply



All times are GMT -5. The time now is 11:09 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE