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Old Dec 19, 2005 | 04:30 PM
  #1  
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SoR
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Q for suspension / steering gurus

A little history - car was in frontal accident. Passenger (right) side suspension got crushed (axle, control arm, strut/spring etc) and replaced.
After it was fixed car pulls to the left (opposite side from where it was hit).

Got it computer aligned today (original alignment was way off) but it still pulls to the left.

Anybody has any ideas?

Steering wheel is not 100% centered, at least not like before. Car actually goes strait when I turn it a tad bit towards right but then it feels like it wants to go to the center and then car goes left (pulls).
When I brake I don't feel the pull, only when I drive. I have 2 sets of wheels/tires and it's pulling on both so tires shouldn't be an issue.

Here's the alignment settings.

Left Front
Camber: -1.78
Caster: 3.24
Toe: -0.01

Right Front
Camber: -1.84
Caster: 2.82
Toe: 0.00

Left Rear
Camber: -1.48
Toe: 0.06

Right Rear
Camber: -1.47
Toe: 0.06

I'm wondering why front right caster is so much different than the left one.
Looking at this thread, he's got it same on both sides https://www.evolutionm.net/forums/sh...tock+alignment

Any help appreciated. I'd like to track this car and that's why the aggressive camber but don't want to find out at high speed something's wrong with it.
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Old Dec 19, 2005 | 04:43 PM
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From: Phoenix
Well one of the problems with accidents is that the car is never right again. You can usually get it close but there will always be steering and suspension issues.

One or two things could be wrong. Either your suspension hardpoints are slightly off from the collision (which happens) or the alighnment was done porrly.

My recommendation is to take it in for another alighnment and a reputable shop and see hwo it turns out.

If it turns out your frame or hardpoints are slgihtly off then your options are very limited and very expensive if you decide to correct it. Keep in mind though that people road race and autocross with rolled/crashed chassis all the time. They just set up the car the best they can and go from there.
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Old Dec 19, 2005 | 04:53 PM
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Originally Posted by Mercenary3
Well one of the problems with accidents is that the car is never right again. You can usually get it close but there will always be steering and suspension issues.
Very true

Originally Posted by Mercenary3
One or two things could be wrong. Either your suspension hardpoints are slightly off from the collision (which happens) or the alighnment was done porrly.

My recommendation is to take it in for another alighnment and a reputable shop and see hwo it turns out.

If it turns out your frame or hardpoints are slgihtly off then your options are very limited and very expensive if you decide to correct it. Keep in mind though that people road race and autocross with rolled/crashed chassis all the time. They just set up the car the best they can and go from there.
This alignment shop is the best one in tri-state I was told and everybody and their mom swears to it.
The collision shop told me the hit was not hard enough to make any frame damage. As I'm no expert I can't tell how bad it was.
Thanks for the comfort though
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Old Dec 19, 2005 | 05:38 PM
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From: SLC, Utah
Right Front
Camber: -1.84
Caster: 2.82 <-------- From that it being on the side of impact I would say that wheel is still pushed back a little. While this would not cause the car to pull it could cause some turn in issues under hard driving.
Toe: 0.00


To me it sounds like something in the suspension is still not 100%

also have them center the steeringwheel it is not the hardest thing to do. If they are good shop they should have had is centered the first time.

Ben
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Old Dec 19, 2005 | 08:37 PM
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From: Phoenix
Originally Posted by RallySport Direct
Right Front
Camber: -1.84
Caster: 2.82 <-------- From that it being on the side of impact I would say that wheel is still pushed back a little. While this would not cause the car to pull it could cause some turn in issues under hard driving.
Toe: 0.00

Ben
Yeah, I'm thinking the CA mounts might have been tweaked a bit. Doesnt look too serious though. Its definitely fixable.

A pull would be more from a static camber or toe condition, but from the looks of it, they look ok. Maybe the steering wheel is just off center. Mine is on my car as of right now...happened just after my alighnment shop thought they needed to correct my already-good alightnment. O well, Ill get it fixed when I put the advans on in the spring.
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Old Dec 20, 2005 | 09:22 AM
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What alignment shop did you use?
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Old Dec 20, 2005 | 09:28 AM
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From: SLC, Utah
Originally Posted by Mercenary3
Yeah, I'm thinking the CA mounts might have been tweaked a bit. Doesnt look too serious though. Its definitely fixable.

A pull would be more from a static camber or toe condition, but from the looks of it, they look ok. Maybe the steering wheel is just off center. Mine is on my car as of right now...happened just after my alighnment shop thought they needed to correct my already-good alightnment. O well, Ill get it fixed when I put the advans on in the spring.

0.42 difference in caster is not much at all considering it is not adjustable in stock form

But if I was setting up a track car I would fix this angle.

Ben
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Old Dec 20, 2005 | 09:12 PM
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From: Singapore
ringmeister - I was in Euro Tire in Fairfield.

Looking at the thrust angle from the print out, it's strait at 0 so steering wheel should be right. Looking at the steering wheel, it doesn't seem strait, but wait, steering wheel itself is not perfect
I guess I'm one of those neat picks who notices these things... it seems steering wheel isn't even on left and right side (it's left mirror image would match the right side) so when it's strait the bottom spoke isn't under perfect 90 degree angle.

Also I took the car out today and found out my left rear tire still loses pressure after it was fixed It's a very slow leak and I can't find where it is but 15psi difference would be enough to make a difference in handling
I can't be 100% sure that's the culprit but as soon as I added air, it didn't seem bad at all. I guess I'll know more once I put decent new tires on the car and find a nice smooth road.
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Old Jan 12, 2006 | 04:51 AM
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From my experiences I would say that with that much camber I would run 1mm to 1.3mm toe IN on each of the fronts, may help considerably.

Mike
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Old Jan 14, 2006 | 05:23 PM
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Understand, that in the US the specs for most cars call for a slight "pull" to the left to keep soccer moms out of the ditch when doing there makeup and talking on the cell. With the specs you have though it should track very well. The caster split to the left isn't enough to cause a dramatic pull at all. I would go to a shop with one of the new Hunter laser alignment machines that can actually take into account the rear caster as well as the front. The other issue hear could be as simple as a radial pull. Check the tire pressure all the way around the car if all is okay there, cross the front two tires and see if the car goes the opposite direction. Simple and easy way to see if it is tire pull.
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