Drag Racing Tech
Sponsored by:
Sponsored by:

how do you know when you need a rear drag bar? car acting weird?? help please

Thread Tools
 
Search this Thread
 
Old 04-06-2008, 07:53 PM
  #1  
TECH Fanatic
Thread Starter
iTrader: (2)
 
camarokid94's Avatar
 
Join Date: Dec 2004
Posts: 1,154
Likes: 0
Received 1 Like on 1 Post

Default how do you know when you need a rear drag bar? car acting weird?? help please

so i had some 28-10.5-15 mt et drags i wanted to try i knew they would be to tall NA but thought hell i might just get a front whell or two up so i tried them anyways.

well first launch i dropped at 6k and it poped the fronts about 4in i was so pumped. well i stayed in it and when in 3rd it felt alittle weird like the tires were way out of balance so i let out and ended up with a 1/8mile of like 7.5ish at 88 and my best before was (in my sig) high 7.3 at 98 so i know i could have gotten close to 10s

well tried two more times at 6.5k and both times it almost jumped into the right lane ( i was in the left) i stayed in in the first time and when i hit second it jumped so hard it kicked me sideways almost lost it and hi thte wall.

third time it jumped very bad and i just costed the rest of the way.

i got a vid ill try and get up if it can last time i tried it never worked.

im not sure it i got a poroblem with one of the lower control arms there SPOHN HEIM HEIMs and maybe a heim went bad

or if the drag slicks are that much more i dont know what and i need a drag bar?

i have used ET streets before and this it the first time it has ever drated to the right like this any idea would be great thanks everyone
Old 04-06-2008, 09:59 PM
  #2  
Launching!
iTrader: (5)
 
Hot Copper Z's Avatar
 
Join Date: Feb 2006
Location: Lenoir City, TN
Posts: 232
Likes: 0
Received 0 Likes on 0 Posts
Default

Is the rearend square in the car?Usually without a anti roll bar the car tends to twist bad.was tire pressure the same on both tires?
Old 04-06-2008, 10:03 PM
  #3  
TECH Resident
iTrader: (9)
 
El_Diablo's Avatar
 
Join Date: Jul 2007
Location: Guthrie, Oklahoma
Posts: 816
Likes: 0
Received 1 Like on 1 Post
Default

Def. sounds like it's time for an anti-roll bar. Nice car man.
Old 04-06-2008, 10:12 PM
  #4  
TECH Fanatic
Thread Starter
iTrader: (2)
 
camarokid94's Avatar
 
Join Date: Dec 2004
Posts: 1,154
Likes: 0
Received 1 Like on 1 Post

Default

thanks and yeah pressure was the same in both.

i did have to more the right rear control arm to the front a little to get the 28s to fit
Old 04-06-2008, 10:18 PM
  #5  
11 Second Club
 
Bitemark46's Avatar
 
Join Date: Aug 2005
Location: Tampa, FL
Posts: 804
Likes: 0
Received 0 Likes on 0 Posts

Default

Your left rear tire is getting more traction than the right rear and pushing the car right. Which means that your car is unloading (squating) on the pass side rear. A quick fix is an air bag in the RR spring or like the above a roll bar. -Mark
Old 04-06-2008, 10:25 PM
  #6  
Launching!
iTrader: (5)
 
Hot Copper Z's Avatar
 
Join Date: Feb 2006
Location: Lenoir City, TN
Posts: 232
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by camarokid94
thanks and yeah pressure was the same in both.

i did have to more the right rear control arm to the front a little to get the 28s to fit
There you go,if one tire is more forward than the other guess which way the car will pull?I'd say that's your problem.
Old 04-07-2008, 06:44 AM
  #7  
9 Second Club
iTrader: (23)
 
tektrans's Avatar
 
Join Date: Nov 2003
Posts: 3,377
Likes: 0
Received 0 Likes on 0 Posts

Default

Same thing was happenning to me before I got a good swaybar in there.
You could try an airbag as a quick fix yes but the swaybar is the way to go.

Mark
Old 04-07-2008, 10:40 PM
  #8  
TECH Fanatic
Thread Starter
iTrader: (2)
 
camarokid94's Avatar
 
Join Date: Dec 2004
Posts: 1,154
Likes: 0
Received 1 Like on 1 Post

Default

here is a vid of what the car was doing after lookin at it im not sure i just didnt get out of the grove?

http://media.putfile.com/wheelie-slow-0001
Old 04-08-2008, 01:46 AM
  #9  
9 Second Club
iTrader: (21)
 
camscam02's Avatar
 
Join Date: Apr 2006
Location: sacramento, CA
Posts: 3,240
Likes: 0
Received 1 Like on 1 Post
Default

i have yet to see an f body do that.... there is something wrong with the suspension big time.... im not to sure at the moment hopefully someone will chime in with some help!
Old 04-08-2008, 07:30 AM
  #10  
TECH Addict
iTrader: (22)
 
slow trap's Avatar
 
Join Date: Sep 2004
Location: tennessee
Posts: 2,639
Likes: 0
Received 0 Likes on 0 Posts

Default

it looks like you lost traction with your right tire to me. maybe you was alittle right when you lined up,slightly out of the groove.
Old 04-08-2008, 07:44 AM
  #11  
TECH Fanatic
Thread Starter
iTrader: (2)
 
camarokid94's Avatar
 
Join Date: Dec 2004
Posts: 1,154
Likes: 0
Received 1 Like on 1 Post

Default

more or less what i was thinking
Old 04-08-2008, 08:21 AM
  #12  
LS1Tech Premium Sponsor
iTrader: (6)
 
BMR Suspension's Avatar
 
Join Date: Jun 2004
Posts: 1,619
Likes: 0
Received 0 Likes on 0 Posts

Default

Kind of hard to tell really from the video but I would lean more to the out of the groove scenario. If it continues to be a problem then it's in need of an anti-rollbar to plant both tires equally.
__________________

Allan Miller
President
BMR Suspension
www.bmrsuspension.com
(813) 986-9302
Old 06-21-2008, 03:46 PM
  #13  
Launching!
 
WS6 Canada's Avatar
 
Join Date: Nov 2006
Posts: 213
Likes: 0
Received 1 Like on 1 Post
Default

how do you know which side to adjust on the drag sway bar??? Im droping the pass rear way more than the drivers??? I also have adjustable shocks QA1's on setting 6
Old 06-21-2008, 04:41 PM
  #14  
10 Second Club
iTrader: (12)
 
1QuickT-A's Avatar
 
Join Date: Dec 2004
Location: Birmingham, Alabama
Posts: 2,034
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by El_Diablo
Def. sounds like it's time for an anti-roll bar. Nice car man.
This has NOTHING to do with an anti roll bar.. Cars don't "squat" on the left rear and lunge to the right when they need a anti roll bar. Its actually the exact opposite..
Old 06-21-2008, 04:44 PM
  #15  
10 Second Club
iTrader: (12)
 
1QuickT-A's Avatar
 
Join Date: Dec 2004
Location: Birmingham, Alabama
Posts: 2,034
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by Hot Copper Z
There you go,if one tire is more forward than the other guess which way the car will pull?I'd say that's your problem.
I guess you and I are the only people in here that read his post about adjusting the passenger rear control arm to get the 28" tire to fit. HELLO people the ****** rear end is crooked!!!
Old 06-21-2008, 04:49 PM
  #16  
10 Second Club
iTrader: (12)
 
1QuickT-A's Avatar
 
Join Date: Dec 2004
Location: Birmingham, Alabama
Posts: 2,034
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by camarokid94
here is a vid of what the car was doing after lookin at it im not sure i just didnt get out of the grove?

http://media.putfile.com/wheelie-slow-0001
And yes you are wayyyy out of the groove when it went crazy with you!




All times are GMT -5. The time now is 02:25 AM.