Thread: swaying as u brake.

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  1. #1

    Default swaying as u brake.

    Does any feel their car sway when stoping from 110 mph?
    2001 GTS

  2. #2
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    Default Re: swaying as u brake.

    What do you mean "sway"? My Gen 3 will "dance" a little if I'm on the brakes hard. I believe this is from weight transfer to the front which lightens up the rear end.

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    Default Re: swaying as u brake.

    if you want her to feal more stable than you'll have to go with alittle toe-IN on your front alignment. Toe-OUT makes a car wander alittle during hard braking, and this also happens alittle with 0-Toe since the braking force causes bushings to deflect giving alittle toe-out that will not show on an alignment rack.

    do you know your alignment specs?

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    Default Re: swaying as u brake.

    Quote Originally Posted by alexander m embry View Post
    Does any feel their car sway when stoping from 110 mph? 2001 GTS

    Anyone? "Normal" braking? "Threshold" braking?

    Folks with unbalanced tire pressures do.

    Folks with a leaking shock do.

    Folks with a bad caliper do.

    Folks with a bad alignment might.

    Folks with the 998-999 recall not performed might.
    Last edited by JonB; 10-27-2009 at 02:53 PM.

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    Default Re: swaying as u brake.

    my '01 is very 'planted' going from 145mph to a hard stop at the track.

    stock it wasn't, but I changed many of the things JonB mentions above, tires, pressure, shocks, alignment

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    Default Re: swaying as u brake.

    Quote Originally Posted by JonB - PartsRack View Post
    Anyone? "Normal" braking? "Threshold" braking?

    Folks with unbalanced tire pressures do.

    Folks with a leaking shock do.

    Folks with a bad caliper do.

    Folks with a bad alignment might.

    Folks with the 998-999 recall not performed might.
    Good call! Had a leaky shock once that did the same thing when I braked hard.

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    Default Re: swaying as u brake.

    Quote Originally Posted by Leslie View Post
    my '01 is very 'planted' going from 145mph to a hard stop at the track.

    stock it wasn't, but I changed many of the things JonB mentions above, tires, pressure, shocks, alignment
    Yeah, mine as stock was not so planted and did a little dance under hard braking, but since suspension, brakes n rotors, and new wheels and tires, PLANTED from any speed.

  8. #8
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    Default Re: swaying as u brake.

    From 90mph the other day when I gave it a little extra on the brakes, but not too hard she swayed side to side slightly. Was the first time I had felt it.

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    Default Re: swaying as u brake.

    What the others said. Uneven braking caused by bad pads or rotors will do it. Warped rotors can also cause that sway but is easier to diagnose because you will feel the brake pedal modulate. Also check your sway bar mountings for torque.

  10. #10
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    Default Re: swaying as u brake.

    When I bought my 2002 FE, It was a scary thing to brake while going over 65mph. My two prevoius Vipers never gave me that feeling. After a four wheel alignment by Tom Sessions the car was solid as a rock. The stock alignment was horrible. Adding Eibach springs made a wonderful improvement also.

    Dwight

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    Default Re: swaying as u brake.

    I've been bothered by the feeling that my rear is wagging during repeated braking from very high speeds. It's consistent. I just make sure the front wheels are pointed straight and nothing bad has happened yet. I'd say it was from 120 and up. I think this is happening at speeds where a wing and splitter would make a difference.

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    Default Re: swaying as u brake.

    Shocks will set off a little dance if not up to par. Assuming you have stock set up, brakes and no bias valve.

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    Default Re: swaying as u brake.

    What's the recommended update on shocks and settings then?

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    Default Re: swaying as u brake.

    What about trying some rear anit-toe brackets....supposed to make the car more stable under hard braking.

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    Default Re: swaying as u brake.

    I've never heard of them before for the rear of a Viper. Details please !!!!!

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  17. #17
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    Default Re: swaying as u brake.

    Thanks. That makes sense.

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