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help! tail wagging at speed/braking.

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Old Oct 22, 2012 | 02:24 PM
  #16  
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Originally Posted by cfdfireman1
any car will move around some in a turn if you modulate the throttle.
not like this.
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Old Oct 22, 2012 | 04:03 PM
  #17  
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You have to get under the car and start checking all the bushings. Start with the big ones, check them visually then use a pry bar of some sort and see if you can move them around. Also a weak bushing even when new is on the rear trailing arm.
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Old Oct 22, 2012 | 04:37 PM
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Originally Posted by cfdfireman1
You have to get under the car and start checking all the bushings. Start with the big ones, check them visually then use a pry bar of some sort and see if you can move them around. Also a weak bushing even when new is on the rear trailing arm.
for sure. i'm suspecting this to be the culprit. it's large enough to account for the amount of movement i'm getting. i have a final on Friday, then out of town on Sat. i'm hoping to have this figured out on Monday. will post back with results.

i already have a prybar in the trunk.
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Old Nov 3, 2012 | 07:21 AM
  #19  
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i dont think its bushing related at all,i have cusco sphericals all round on my track evo and mine does the tail wagging too,ive gotten used to it and wait till it wags in the right direction before turning in,to me its more weight shift related,i never had it on harder springs but when i softened up the front of the car it came back
op,my first check would be for a dead strut if your on stock suspension
i would also check your alignment,i run my car toe out in the rear so that would explain my wagging but if your getting a crazy amount of weight transfer then the car will pitch giving you more rake and therefore effectively lighter rear end

Last edited by flyingscot; Nov 3, 2012 at 07:26 AM.
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Old Nov 3, 2012 | 11:10 AM
  #20  
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Originally Posted by flyingscot
i dont think its bushing related at all,i have cusco sphericals all round on my track evo and mine does the tail wagging too,ive gotten used to it and wait till it wags in the right direction before turning in,to me its more weight shift related,i never had it on harder springs but when i softened up the front of the car it came back
op,my first check would be for a dead strut if your on stock suspension
i would also check your alignment,i run my car toe out in the rear so that would explain my wagging but if your getting a crazy amount of weight transfer then the car will pitch giving you more rake and therefore effectively lighter rear end
i don't know. my first Evo didn't have an issues like this. i can be taking a long, sweeping onramp at about 65mph and left off the gas a bit. the car feels like it wants to rotate into the wall. it's very scary, actually. the only difference between this car and my last one is i had lowering springs on the first one.
a dead strut is possible seeing how they are original and high-mileage.. but i get no strange bounces or other behavior during normal driving or speed bumps.
springs are going on soon, though. i'll test the struts then.
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Old Nov 3, 2012 | 11:33 AM
  #21  
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Originally Posted by kaj
i can be taking a long, sweeping onramp at about 65mph and left off the gas a bit. the car feels like it wants to rotate into the wall.
That's normal to a certain extent, since lifting off the throttle puts more weight on the front and lightens the rear, which can make it a bit more unstable. Can you get a video of it doing this on the on-ramp you mentioned? Seeing how bad it is could help some people here tell you if it looks normal or not.
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Old Nov 3, 2012 | 03:48 PM
  #22  
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From: Fresno, CA
Originally Posted by Raptord
That's normal to a certain extent, since lifting off the throttle puts more weight on the front and lightens the rear, which can make it a bit more unstable. Can you get a video of it doing this on the on-ramp you mentioned? Seeing how bad it is could help some people here tell you if it looks normal or not.
i could try, but not sure how good i am driving/taping one-handed will work. LOL.

if this is normal, then these are one of the worst-handling cars i've ever driven. i've never had a car do this, my last Evo didn't do it. so.. i have a hard time believing this is normal.

hm..

we'll see how it goes.
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Old Nov 3, 2012 | 07:49 PM
  #23  
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Get those bushings checked. IT"S FREE!! ;-)
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Old Nov 4, 2012 | 08:46 AM
  #24  
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Originally Posted by cfdfireman1
Get those bushings checked. IT"S FREE!! ;-)
Lol. I know. we've been really busy trying to get my girl's car running so we can stop sharing mine. it hasn't seen enough down time too check em out yet. soon!
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Old Nov 4, 2012 | 04:16 PM
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Check the bushings all the way around. At 113k with track time, issues with them are very possible.

Also, I find my Evo much more manageable under braking on track with matched pads f and r.
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Old Nov 4, 2012 | 05:44 PM
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Originally Posted by JDavenport
Check the bushings all the way around. At 113k with track time, issues with them are very possible.

Also, I find my Evo much more manageable under braking on track with matched pads f and r.
mine still does it with the same compound front and rear
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Old Nov 4, 2012 | 08:00 PM
  #27  
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Originally Posted by JDavenport
Also, I find my Evo much more manageable under braking on track with matched pads f and r.
my car also does it while modulating the throttle on on ramps. no braking.
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Old Nov 6, 2012 | 10:46 AM
  #28  
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Evos with AYC tend to give a little wiggle on the limit of traction. If you panic and let of the gas, the result could be a spinout. Did you last evo have AYC? maybe that's the difference.
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Old Nov 6, 2012 | 02:02 PM
  #29  
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My VIII and my IX both did it before getting rid of the big spongy bushings. Neither had AYC.
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Old Nov 6, 2012 | 03:22 PM
  #30  
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Originally Posted by crazybaldhead
Evos with AYC tend to give a little wiggle on the limit of traction. If you panic and let of the gas, the result could be a spinout. Did you last evo have AYC? maybe that's the difference.
both Evos were exactly the same, yes. the freeway on ramps I take are far from the limit of traction, though. breaking at the track was, however. almost to the point of ABS.
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