Previous Thread
Next Thread
Print Thread
Page 1 of 2 1 2
Best way to counter speed wobbles/fish tailing at track? #2395590
10/30/17 07:32 PM
10/30/17 07:32 PM
Joined: Jun 2013
Posts: 1,521
Tacoma, Washington USA
A
Adam71Charger Offline OP
pro stock
Adam71Charger  Offline OP
pro stock
A

Joined: Jun 2013
Posts: 1,521
Tacoma, Washington USA
Will be taking my charger to the track soon, my first time behind the wheel. For those of you thatve had this happen to you, can you give me some advice on what to do when high speed wobbles or fishtailing happens? It's the only thing I'm really nervous about

Re: Best way to counter speed wobbles/fish tailing at track? [Re: Adam71Charger] #2395604
10/30/17 07:56 PM
10/30/17 07:56 PM
Joined: Jan 2003
Posts: 14,495
So. Burlington, Vt.
F
fast68plymouth Offline
I Live Here
fast68plymouth  Offline
I Live Here
F

Joined: Jan 2003
Posts: 14,495
So. Burlington, Vt.
My car has never done that in like 1500 passes.

Just make sure the tires are properly inflated.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Best way to counter speed wobbles/fish tailing at track? [Re: Adam71Charger] #2395609
10/30/17 08:00 PM
10/30/17 08:00 PM
Joined: Aug 2003
Posts: 43,157
Bend,OR USA
C
Cab_Burge Offline
I Win
Cab_Burge  Offline
I Win
C

Joined: Aug 2003
Posts: 43,157
Bend,OR USA
I've had several ill handling cars at the track, do NOT OVER CORRECT tsk
If you start to feel uncomfortable lift your right foot a little or all the way off, DO NOT jerk the steering wheel around, make all steering inputs gently, a tiny bit, not a BUNCH scope
4 speed cars can get your schynter(SP?) really tight in a hurry at WOT whistling
Once it starts to make you feel bad do something to correct it up Don't take time to think about what to do at WOT and then do something, don't freeze up tsk twocents


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Best way to counter speed wobbles/fish tailing at track? [Re: Adam71Charger] #2395625
10/30/17 08:22 PM
10/30/17 08:22 PM
Joined: Jun 2013
Posts: 1,521
Tacoma, Washington USA
A
Adam71Charger Offline OP
pro stock
Adam71Charger  Offline OP
pro stock
A

Joined: Jun 2013
Posts: 1,521
Tacoma, Washington USA
Thanks guys. I've spent years putting this car together and don't wanna crunch it.

Fast68, I'm actually in the process of selecting my tires to. I have 15x10 wheels in the back of my mini tubbed 71 charger. It's auto, 9.5 4200 converter, Dana 60 4.10, has the multi clutch posi (forget the real name of this type of diff), 446 with the st21 cam, 950hp holley, 1 7/8 long tubes into dual 3", makes 525ish hp (little more tuning to do), about 4000lbs with me, I'm gonna use drag radials but can't decide on what size, what do you think?


Cab, so basically don't over react and don't touch the brake?

Re: Best way to counter speed wobbles/fish tailing at track? [Re: Adam71Charger] #2395657
10/30/17 09:18 PM
10/30/17 09:18 PM
Joined: Aug 2003
Posts: 3,245
Between a rock & a hard place
C
cudadoug Offline
master
cudadoug  Offline
master
C

Joined: Aug 2003
Posts: 3,245
Between a rock & a hard place
Make sure the basics are covered. Front End alignment, tire pressures even, etc.

Take the first few runs easy, don't get in over your head.

Re: Best way to counter speed wobbles/fish tailing at track? [Re: Adam71Charger] #2395660
10/30/17 09:27 PM
10/30/17 09:27 PM
Joined: May 2004
Posts: 12,386
Taxes & Virus's R-US, NY
Dragula Offline
I Live Here
Dragula  Offline
I Live Here

Joined: May 2004
Posts: 12,386
Taxes & Virus's R-US, NY
Fix the problem before it really costs you!

Ball joint, steering joint, tie rod, pitman arm, etc....FIX THE ISSUE!


'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk
Re: Best way to counter speed wobbles/fish tailing at track? [Re: Cab_Burge] #2395663
10/30/17 09:33 PM
10/30/17 09:33 PM
Joined: Sep 2004
Posts: 22,873
Chicken coop
dustergirl340 Offline
Chicken Little
dustergirl340  Offline
Chicken Little

Joined: Sep 2004
Posts: 22,873
Chicken coop
Originally Posted By Cab_Burge

4 speed cars can get your schynter(SP?) really tight in a hurry at WOT whistling


Yep!

Re: Best way to counter speed wobbles/fish tailing at track? [Re: dustergirl340] #2395686
10/30/17 09:55 PM
10/30/17 09:55 PM
Joined: Jan 2003
Posts: 2,361
PA
7
70HemiGTX Offline
top fuel
70HemiGTX  Offline
top fuel
7

Joined: Jan 2003
Posts: 2,361
PA
Originally Posted By dustergirl340
Originally Posted By Cab_Burge

4 speed cars can get your schynter(SP?) really tight in a hurry at WOT whistling


Yep!


Why? I have a stick car and so far it has gone nice and straight with one exception at the starting line. I was the first car to go down that lane. Starting line was not prepped correctly. Immediately turned for the tree. I got out of it real fast. But like I said I never had any issues down track.

Re: Best way to counter speed wobbles/fish tailing at track? [Re: Adam71Charger] #2395697
10/30/17 10:04 PM
10/30/17 10:04 PM
Joined: Aug 2011
Posts: 2,856
Pattison Texas
CSK Offline
master
CSK  Offline
master

Joined: Aug 2011
Posts: 2,856
Pattison Texas
Originally Posted By Adam71Charger
Thanks guys. I've spent years putting this car together and don't wanna crunch it.

Fast68, I'm actually in the process of selecting my tires to. I have 15x10 wheels in the back of my mini tubbed 71 charger. It's auto, 9.5 4200 converter, Dana 60 4.10, has the multi clutch posi (forget the real name of this type of diff), 446 with the st21 cam, 950hp holley, 1 7/8 long tubes into dual 3", makes 525ish hp (little more tuning to do), about 4000lbs with me, I'm gonna use drag radials but can't decide on what size, what do you think?


Cab, so basically don't over react and don't touch the brake?


Do not get Nitto's, I sold mine & just got some M/T ET street R, have not made it to the track yet with M/T's but on the street they hook VERY good compared to the Nitto.


1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5

Re: Best way to counter speed wobbles/fish tailing at track? [Re: Adam71Charger] #2395721
10/30/17 10:39 PM
10/30/17 10:39 PM
Joined: Oct 2007
Posts: 1,070
Big Western Pencilveinya
U
Uncle Barry Offline
super stock
Uncle Barry  Offline
super stock
U

Joined: Oct 2007
Posts: 1,070
Big Western Pencilveinya
If you run a M/T street drag radial and all your steering and suspension is up to snuff, heat the tires a little bit and enjoy. Make a shakedown pass your first trip to get the feel for it and have fun. Don't rush yourself.

Last edited by Uncle Barry; 10/30/17 10:42 PM.
Re: Best way to counter speed wobbles/fish tailing at track? [Re: Adam71Charger] #2395735
10/30/17 11:00 PM
10/30/17 11:00 PM
Joined: Nov 2003
Posts: 3,427
Dandridge TN
D
Dabee Offline
master
Dabee  Offline
master
D

Joined: Nov 2003
Posts: 3,427
Dandridge TN
Okay, here is a little advice. If this is the first time down the track, here is what I have always done. First pass launch only. This will tell you if it's going to go straight and if any tire pressure or suspension adjustments are needed. Second pass, make a half pass to see how the car feels. Again this will tell you if any adjustments are needed. Third pass go for it. Be safe and have fun.

Re: Best way to counter speed wobbles/fish tailing at track? [Re: Cab_Burge] #2395756
10/30/17 11:31 PM
10/30/17 11:31 PM
Joined: May 2011
Posts: 4,489
northern,Ohio,USA
C
Clanton Offline
master
Clanton  Offline
master
C

Joined: May 2011
Posts: 4,489
northern,Ohio,USA
Originally Posted By Cab_Burge
I've had several ill handling cars at the track, do NOT OVER CORRECT tsk
If you start to feel uncomfortable lift your right foot a little or all the way off, DO NOT jerk the steering wheel around, make all steering inputs gently, a tiny bit, not a BUNCH scope
4 speed cars can get your schynter(SP?) really tight in a hurry at WOT whistling
Once it starts to make you feel bad do something to correct it up Don't take time to think about what to do at WOT and then do something, don't freeze up tsk twocents
I agree don't over react,over steer,panic brake.I had to counter steer a bit in this run. https://www.youtube.com/watch?v=Ar0u7KtWH-I run


GOTBOOST!New improved with Victor heads.
http://www.enginelabs.com/mopar-big-bloc...t-of-necessity/
Re: Best way to counter speed wobbles/fish tailing at track? [Re: Adam71Charger] #2395809
10/31/17 12:53 AM
10/31/17 12:53 AM
Joined: Jan 2003
Posts: 11,711
Portage,michigan
B
B3422W5 Offline
I Live Here
B3422W5  Offline
I Live Here
B

Joined: Jan 2003
Posts: 11,711
Portage,michigan
Maybe have somebody with experience drive your car first, make sure its sorted out


69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, 10.40 @127 1/4
1.41 best 60 foot
6.60 at 103.90 1/8

Re: Best way to counter speed wobbles/fish tailing at track? [Re: Adam71Charger] #2395814
10/31/17 01:06 AM
10/31/17 01:06 AM
Joined: Jun 2005
Posts: 6,257
gulfport, ms, west mi
rowin4 Offline
master
rowin4  Offline
master

Joined: Jun 2005
Posts: 6,257
gulfport, ms, west mi
2 things that cause wobbles and fish tailing at speed are front end alignment and worn out tires. Get your front end aligned , the tech will check for bad joints and bushings, or he should. If your buying new tires ,you can rule that out.


it's ok to butt heads, just don't do it with a butthead
Re: Best way to counter speed wobbles/fish tailing at track? [Re: Adam71Charger] #2395819
10/31/17 01:08 AM
10/31/17 01:08 AM
Joined: Jan 2003
Posts: 5,762
Hot Rod Ridge
FastmOp Offline
master
FastmOp  Offline
master

Joined: Jan 2003
Posts: 5,762
Hot Rod Ridge
Point and Stab !
Point and Stab !

Re: Best way to counter speed wobbles/fish tailing at track? [Re: cudadoug] #2395839
10/31/17 01:54 AM
10/31/17 01:54 AM
Joined: Jul 2006
Posts: 4,319
Puyallup, WA
S
StealthWedge67 Offline
master
StealthWedge67  Offline
master
S

Joined: Jul 2006
Posts: 4,319
Puyallup, WA
if You use a Radial, it should track straight & true. Even on bias plus, with proper inflation it should be just like the freeway. If it’s not, figure out why not. The best advice I can give is to embrace the mindset of: “if it gets loose at all, the run is over”. Roll out of it and make adjustments for the next run.

Last edited by StealthWedge67; 10/31/17 01:58 AM.

LemonWedge - Street heavy / Strip ready - 11.07 @ 120
Re: Best way to counter speed wobbles/fish tailing at track? [Re: Adam71Charger] #2395924
10/31/17 10:22 AM
10/31/17 10:22 AM
Joined: Jan 2003
Posts: 13,360
Marion, South Carolina [><]
an8sec70cuda Offline
I Live Here
an8sec70cuda  Offline
I Live Here

Joined: Jan 2003
Posts: 13,360
Marion, South Carolina [><]
If it starts to get unstable, just let off the gas. Too many try to be a hero and stay in it.

Only time I've ever had a high speed issue was w/ bias ply tires that had too little air pressure.
On radials I doubt you'll ever have an issue, but keep em at 18+ psi on a 4k lb car.


CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
Re: Best way to counter speed wobbles/fish tailing at track? [Re: an8sec70cuda] #2395927
10/31/17 10:31 AM
10/31/17 10:31 AM
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
B
BradH Offline
Taking time off to work on my car
BradH  Offline
Taking time off to work on my car
B

Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
Originally Posted By an8sec70cuda

Only time I've ever had a high speed issue was w/ bias ply tires that had too little air pressure.

Yep. In my case, it was too wide a tire for the wheel width and I was keeping the tire pressure lower than it should have used trying to spread out the footprint off the line. Then on the big end the back end would start to sway back & forth cuz the sidewalls were too soft.

Re: Best way to counter speed wobbles/fish tailing at track? [Re: Adam71Charger] #2395990
10/31/17 12:35 PM
10/31/17 12:35 PM
Joined: Jan 2011
Posts: 672
st.louis,mo.
dart games Offline
mopar
dart games  Offline
mopar

Joined: Jan 2011
Posts: 672
st.louis,mo.
no different than pulling a trailer and the trailer starts to wobble for no reason

Re: Best way to counter speed wobbles/fish tailing at track? [Re: an8sec70cuda] #2396061
10/31/17 02:39 PM
10/31/17 02:39 PM
Joined: Oct 2007
Posts: 1,070
Big Western Pencilveinya
U
Uncle Barry Offline
super stock
Uncle Barry  Offline
super stock
U

Joined: Oct 2007
Posts: 1,070
Big Western Pencilveinya
Originally Posted By an8sec70cuda
If it starts to get unstable, just let off the gas. Too many try to be a hero and stay in it.

Only time I've ever had a high speed issue was w/ bias ply tires that had too little air pressure.
On radials I doubt you'll ever have an issue, but keep em at 18+ psi on a 4k lb car.
Isn't that the truth about heroes. I know a few people that say "you're a sissy, don't lift! You don't know how to drive!" Etc. But are too much of a "sissy" themselves to race their own car. Typical car show mouthpieces. Leave those type of people at home. Chip is right on with the 18 lbs on a drag radial. Always worked great for us thumbs

Page 1 of 2 1 2






Powered by UBB.threads™ PHP Forum Software 7.7.1