Drag Racing Tech
Sponsored by:
Sponsored by:

help with traction

Thread Tools
 
Search this Thread
 
Old 07-19-2007, 04:09 AM
  #1  
Banned
Thread Starter
iTrader: (36)
 
daniel6718's Avatar
 
Join Date: Jun 2004
Location: garland tx
Posts: 3,760
Likes: 0
Received 1 Like on 1 Post
Default help with traction

the vids are labeled, but car like wheel hops off the line, i flash the stall on 125 normally and spin like this

i used to have 3.73 and 3200 stall and hit the 125 shot at 3500 rpm, now i try to flash the stall on 125 shot with a 3600 stall and 3.42 no luck

bmr relocation brackets on lowest setting, and umi poly poly lca's

i even tried flashing it with 75 shot then grabbing the 125 and it spun worse!

stock tq arm and stock springs/shocks
madman somebody whats causing this?
http://s21.photobucket.com/albums/b2...t=f49ed03a.flv
http://s21.photobucket.com/albums/b2...t=01db8302.flv
http://s21.photobucket.com/albums/b2...t=b0e8f0f6.flv


started the night at 15 psi cold went all the way down to 10 psi cold, tires are mt/dr

Last edited by daniel6718; 07-19-2007 at 01:07 PM.
Old 07-19-2007, 04:21 AM
  #2  
Launching!
 
So-GT0071's Avatar
 
Join Date: Jun 2006
Location: Arizona
Posts: 200
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by daniel6718
i used to have 3.73 and 3200 stall and hit the 125 **** at 3500
that made me laugh

I say you should get a torque arm since you have a stock one, they seem to help with wheel hop.

Here's a few options:

http://www.spohn.net/category.cfm?categoryid=1049

Jeg's and edelbrock have them as well on the jegs website

Last edited by So-GT0071; 07-19-2007 at 04:30 AM.
Old 07-19-2007, 07:46 PM
  #3  
Banned
Thread Starter
iTrader: (36)
 
daniel6718's Avatar
 
Join Date: Jun 2004
Location: garland tx
Posts: 3,760
Likes: 0
Received 1 Like on 1 Post
Default

anyone else
Old 07-19-2007, 09:05 PM
  #4  
11 Second Club
 
1SlowFormula's Avatar
 
Join Date: Jul 2005
Location: West Linn, Oregon
Posts: 1,089
Likes: 0
Received 3 Likes on 3 Posts

Default

Daniel,

What rear setup do you have? What I was hearing wasn't wheel hop as much as intermitant slipping, such as your LSD was not locking completely... Is it shaking the car on launch, and kinda giving you a feeling like your rowing the tires? (like a rowboat, right, left, right, left, right, left, etc...) That is normally the feel of wheel hop...
Old 07-20-2007, 02:02 AM
  #5  
Banned
Thread Starter
iTrader: (36)
 
daniel6718's Avatar
 
Join Date: Jun 2004
Location: garland tx
Posts: 3,760
Likes: 0
Received 1 Like on 1 Post
Default

its a stock 10 bolt with 3.42 welded posi...i thought the same, as if one tire was getting all the power and almost enough to hold it but not quite...

no on the rowing feeling...its as if im in tire shake (both jump loose and grab lose and grab) the car sometimes will skate 1/2 inch or something one way or the other as its skipping...

the tq arm had the bolt holes stretched out a little last time i swapped rears so we pulled it out and welded washers around the holes for now, i know i need a new one but is that the problem for sure? i wanna get a body mount adjustable just kinda broke

weird i used to cut 1.50 (3200 stall and window switch at 3500)
now i flash a 3600 on 125 shot and it does this?, cars light too, should weight about 3200
Old 07-20-2007, 10:13 PM
  #6  
Banned
Thread Starter
iTrader: (36)
 
daniel6718's Avatar
 
Join Date: Jun 2004
Location: garland tx
Posts: 3,760
Likes: 0
Received 1 Like on 1 Post
Default

ttttttt
Old 07-20-2007, 11:05 PM
  #7  
11 Second Club
iTrader: (20)
 
5_02ls1's Avatar
 
Join Date: Oct 2006
Location: Virginia
Posts: 3,131
Likes: 0
Received 0 Likes on 0 Posts

Default

3.42 welded posi...
thev ole lincoln locker...lolid say its those stock shocks...
Old 07-21-2007, 05:17 AM
  #8  
10 Second Club
iTrader: (22)
 
junior28570's Avatar
 
Join Date: Feb 2006
Location: coastal N.C.
Posts: 536
Likes: 0
Received 0 Likes on 0 Posts

Default

Like 1slowformula said, it sounds like your slipping traction. Kinda' like your tires are skidding. I've seen it before on my car .. a long (longer than normal) burnout (maybe making the tires a little too soft) and tired track conditions (getting late in the evening) seemed to be the most likey cause(s). I dropped lost .05 off my 60' because of it.
Old 07-22-2007, 03:48 AM
  #9  
Banned
Thread Starter
iTrader: (36)
 
daniel6718's Avatar
 
Join Date: Jun 2004
Location: garland tx
Posts: 3,760
Likes: 0
Received 1 Like on 1 Post
Default

well i used to do a burnout 1-2-3 shift to about 100 then let off...lately tires are getting close to slicks and i been doing a 1-2 to about 50 mph burnout, think thats not enough?
http://s21.photobucket.com/albums/b2...t=1f14fc08.flv

Last edited by daniel6718; 07-22-2007 at 03:54 AM.
Old 07-22-2007, 01:11 PM
  #10  
10 Second Moderator
iTrader: (2)
 
Torkman15's Avatar
 
Join Date: Feb 2004
Location: Mid Michigan
Posts: 559
Received 0 Likes on 0 Posts

Default

Torque arm.
Old 07-23-2007, 09:10 AM
  #11  
11 Second Club
 
1SlowFormula's Avatar
 
Join Date: Jul 2005
Location: West Linn, Oregon
Posts: 1,089
Likes: 0
Received 3 Likes on 3 Posts

Default

Daniel,

How many passes and/or steet driving is on the M/T drag radials?

I know of a couple people who start having inconsistancy issues with them after 30 - 40 passes, mine are getting to that point and starting to do the same as yours...
Old 07-23-2007, 01:40 PM
  #12  
Banned
Thread Starter
iTrader: (36)
 
daniel6718's Avatar
 
Join Date: Jun 2004
Location: garland tx
Posts: 3,760
Likes: 0
Received 1 Like on 1 Post
Default

they just got to where they have no tread all the way across...its weird i used to get .150 on them all day now i can barely get a 1.6
im about to get new ones and if i dont hook then a tq arm...
Old 07-23-2007, 02:42 PM
  #13  
TECH Apprentice
iTrader: (36)
 
fastenough's Avatar
 
Join Date: Feb 2004
Posts: 324
Likes: 0
Received 0 Likes on 0 Posts

Default

5-6k miles on those things are they done (depending on how you drive on them)
Old 07-23-2007, 05:58 PM
  #14  
Banned
Thread Starter
iTrader: (36)
 
daniel6718's Avatar
 
Join Date: Jun 2004
Location: garland tx
Posts: 3,760
Likes: 0
Received 1 Like on 1 Post
Default

track only...about 25 passes and they were used about 8 or so before that i think...

prolly 300 street miles....they just got through the tread and have been slick for about 5 pases...i dont know how long they last once the tread is gone but i figured they would hook better now that they have more contact patch?????
Old 07-23-2007, 08:16 PM
  #15  
TECH Resident
iTrader: (23)
 
slowredz's Avatar
 
Join Date: Aug 2005
Location: DFW, Texas
Posts: 750
Likes: 0
Received 0 Likes on 0 Posts

Default

You need new tires.... I noticed them at Yello Belly yesterday and they are done. What all did you get tickets for?
Old 07-24-2007, 12:10 PM
  #16  
Banned
Thread Starter
iTrader: (36)
 
daniel6718's Avatar
 
Join Date: Jun 2004
Location: garland tx
Posts: 3,760
Likes: 0
Received 1 Like on 1 Post
Default

have i met you or seen you? i know your car lol....im looking into getting some...i just figured they were better when they got bald guess not

trailor tags, safety chains, no break away device and brakelight not working...

Last edited by daniel6718; 07-24-2007 at 12:42 PM.
Old 07-25-2007, 11:25 PM
  #17  
TECH Resident
iTrader: (23)
 
slowredz's Avatar
 
Join Date: Aug 2005
Location: DFW, Texas
Posts: 750
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by daniel6718
have i met you or seen you? i know your car lol....im looking into getting some...i just figured they were better when they got bald guess not

trailor tags, safety chains, no break away device and brakelight not working...
I dont think we have actually met. That sucks on the tickets, that's a bunch of B.S stuff
Old 07-25-2007, 11:31 PM
  #18  
Teching In
 
trembles's Avatar
 
Join Date: Dec 2005
Posts: 40
Likes: 0
Received 0 Likes on 0 Posts

Default

i have seen on more then once that when you weld the diff and use stock axles the axles twist back and forth causing the car to wheel hop or feel like the tires are shaking
Old 07-26-2007, 01:12 AM
  #19  
Banned
Thread Starter
iTrader: (36)
 
daniel6718's Avatar
 
Join Date: Jun 2004
Location: garland tx
Posts: 3,760
Likes: 0
Received 1 Like on 1 Post
Default

yea i had a flat about a week ago and it knocked off tha tag and ripped the wiring for the lights...have got to fix it yet....i need some money for new tires..

why wouldent it do it with a spool in a stock rear then?
Old 07-26-2007, 07:26 PM
  #20  
TECH Addict
iTrader: (32)
 
JEB99TA's Avatar
 
Join Date: Apr 2004
Location: Florida
Posts: 2,712
Likes: 0
Received 2 Likes on 1 Post

Default

At first, I had aftermarket LCS' and P/H bar ... still had wheel hop. I then bought a set of 4 of the older style HD Bilsteins and never had a wheel hop problem again.



All times are GMT -5. The time now is 02:31 PM.