Suspension & Brakes Theory, alignment, spring rates....

What do you think of these alignment specs?

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Old Jul 25, 2011 | 05:58 PM
  #1  
preludeNApower's Avatar
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Default What do you think of these alignment specs?

So im setting my car up for street/autocross and wanted to hear some opinions on the specs I plan to run The car handles pretty neutral right now. I have Eibach sport springs, KYB gr2 struts, f&r strut braces and f&r LCA braces.

Right now I believe my settings are ...

Front
Camber- -1
toe- 0

rear
camber- -1.5
toe 0

and I was planning to put it at...

F
Camber -1.5
toe -.25

R
camber -.75
toe 0
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Old Jul 25, 2011 | 07:01 PM
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racebum's Avatar
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Default Re: What do you think of these alignment specs?

toe is all wrong. set the front to -.05 out on each side and the rear .08 in on each side. that car will be nervous at speed with those settings
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Old Jul 25, 2011 | 09:20 PM
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civexspeedy's Avatar
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Default Re: What do you think of these alignment specs?

I'll run anywhere from -.04 to -.06 in the front and somewhere around +.14 to +.16 in the rear.

The car is a bit twitchy, esp with the suspension setup. I don't let ANYONE drive my car on the street. And I don't drive it on the street much anyways since it's mainly used for autox. I have a much more comfortable DD. But, it does very well at autox events and I personally like a fairly loose car.

I'd start out around with what racebum said and go from there.
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Old Jul 26, 2011 | 02:52 AM
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Default Re: What do you think of these alignment specs?

Originally Posted by racebum
toe is all wrong. set the front to -.05 out on each side and the rear .08 in on each side. that car will be nervous at speed with those settings
These are the settings I run, the car handles like a dream.
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Old Jul 27, 2011 | 06:14 PM
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preludeNApower's Avatar
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Default Re: What do you think of these alignment specs?

thanks for the input,

Also, I am running a 215 40 16 marangoni zeta lina
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Old Jul 28, 2011 | 08:14 AM
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Default Re: What do you think of these alignment specs?

Never heard of those tires but if they are just regular street tires then your camber as suggested is good but I say .1 toe rear and .05 toe front.

Then again I have crappherson struts with shitty tie rod bushings that like to toe in so I run a little out
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Old Jul 28, 2011 | 06:42 PM
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Default Re: What do you think of these alignment specs?

Correct me if I am wrong but wont these toe specs both front and rear create more understeer?
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Old Aug 5, 2011 | 09:04 PM
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Default Re: What do you think of these alignment specs?

Originally Posted by preludeNApower
Correct me if I am wrong but wont these toe specs both front and rear create more understeer?
.25 out in the front and zero toe in the rear is actually going to create more oversteer and 1/4" out in the front is way excessive, you'll just be destroying tires. I run 1/16" out front and zero rear on my track car and really wouldn't recommend zero toe rear for the street, it's amazing how much a little toe change in the back does for the car's rotation. For a daily driver I'd stay around 1/32" out front, 1/16" in rear.
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Old Aug 6, 2011 | 05:08 PM
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Default Re: What do you think of these alignment specs?

I hate 0 toe in the rear, at higher speeds it felt unstable to me.
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Old Aug 8, 2011 | 06:23 PM
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Default Re: What do you think of these alignment specs?

Originally Posted by FlewByU352
I hate 0 toe in the rear, at higher speeds it felt unstable to me.
Which is why it should be in a hair. Probably .05 total toe in at the most.
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