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
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Joined: Jan 2003
Posts: 14,514 So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,514
So. Burlington, Vt.
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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
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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
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Joined: Aug 2003
Posts: 43,307 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,307
Bend,OR USA
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I've had several ill handling cars at the track, do NOT OVER CORRECT 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 4 speed cars can get your schynter(SP?) really tight in a hurry at WOT Once it starts to make you feel bad do something to correct it Don't take time to think about what to do at WOT and then do something, don't freeze up
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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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
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Joined: Jun 2013
Posts: 1,521 Tacoma, Washington USA
Adam71Charger
OP
pro stock
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OP
pro stock
Joined: Jun 2013
Posts: 1,521
Tacoma, Washington USA
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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?
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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
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Joined: Jan 2003
Posts: 2,364 PA
70HemiGTX
top fuel
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top fuel
Joined: Jan 2003
Posts: 2,364
PA
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4 speed cars can get your schynter(SP?) really tight in a hurry at WOT 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.
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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
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Joined: Aug 2011
Posts: 2,872 Pattison Texas
CSK
master
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master
Joined: Aug 2011
Posts: 2,872
Pattison Texas
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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
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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
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Joined: Oct 2007
Posts: 1,070 Big Western Pencilveinya
Uncle Barry
super stock
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super stock
Joined: Oct 2007
Posts: 1,070
Big Western Pencilveinya
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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.
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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
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Joined: May 2011
Posts: 4,489 northern,Ohio,USA
Clanton
master
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master
Joined: May 2011
Posts: 4,489
northern,Ohio,USA
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I've had several ill handling cars at the track, do NOT OVER CORRECT 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 4 speed cars can get your schynter(SP?) really tight in a hurry at WOT Once it starts to make you feel bad do something to correct it Don't take time to think about what to do at WOT and then do something, don't freeze up 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
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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
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Joined: Jan 2003
Posts: 11,728 Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,728
Portage,michigan
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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, low 10.30’s 1/4 1.41 best 60 foot 6.56 at 104.17
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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
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Joined: Jun 2005
Posts: 6,257 gulfport, ms, west mi
rowin4
master
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master
Joined: Jun 2005
Posts: 6,257
gulfport, ms, west mi
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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
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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
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Joined: Jul 2006
Posts: 4,319 Puyallup, WA
StealthWedge67
master
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master
Joined: Jul 2006
Posts: 4,319
Puyallup, WA
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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
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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
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Joined: Jan 2003
Posts: 13,402 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,402
Marion, South Carolina [><]
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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
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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
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Joined: Jan 2003
Posts: 15,439 Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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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.
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