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Old 10-17-2015, 04:34 AM   #1
xabre1200
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Default How much rear camber for a daily 08-14 WRX?

I just picked up the new Whiteline kta216 lower control arm kit for my 11 WRX so I can get my rear camber evened out. I got an alignment last week and found that my rear camber is quite uneven. The rear left is at -1.8 and the rear right is at -2.5 and I had the front aligned at -1.4 and toe 0.0 all around.

I have asked around and been recommended -1.0 in the rear for a daily driver. My suspension is Swift springs w/ Koni Yellow struts and I just want to get some input before I get these lower control arms installed and head over to the alignment shop.

This car is my daily driver so I'm definitely looking for a good balance of sporty/tire wear.

Thanks
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Old 10-17-2015, 06:27 AM   #2
lukethedork
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1.25* on the rear if you have a good setup. 1.5*-1.75* If you have a bad setup. Which you likely do.
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Old 10-17-2015, 04:14 PM   #3
xabre1200
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Quote:
Originally Posted by lukethedork View Post
1.25* on the rear if you have a good setup. 1.5*-1.75* If you have a bad setup. Which you likely do.
Lol what do you mean bad setup?
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Old 10-18-2015, 10:12 AM   #4
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I mean a cheap setup, or one that is designed for multiple uses such as yours.
You said you have swift springs and Koni Yellow struts. The struts are too soft to control the suspension optimally for performance. Large sway bars will not be beneficial to performance, increased camber will. Any larger than around 21mm front and 20mm rear sway bar are not good unless it is a track only vehicle.
For performance driving on the street stick to around 1.5*-1.75*. You likely have excessive camber due to being lowered.
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Old 10-19-2015, 09:58 AM   #5
ru1nedwrx
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OEM specs is the best you can do for a DD.
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Old 10-19-2015, 10:32 AM   #6
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You should've got FORTUNE AUTO coilovers: upgrade to SWIFT springs with rear camber plates. Good Luck!
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Old 10-22-2015, 09:40 PM   #7
Concillian
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This depends on how much performance you want.

For a fairly neutral setup, run the rear at ~0.2-0.5 degrees more positive camber the front (front -1.2 then rear is -1.0 to -0.7, for example)

Daily driving no performance driving, tire wear is good around -1 to -1.5 front then the associated positive offset for rear. High performance driving will see benefits to -2 to 2.5 degrees front camber, but this will increase wear on the inside of the tires if you do not drive high performance often. Pick somewhere between that based on your preferences. I currently run -2.2 / -1.7 but my freeway miles definitely wear the insides faster than the outsides (but it sticks awesome in the corners) When I was -1.2 / -0.5 it was more tail happy and rotating tires regularly resulted in pretty even wear with my mostly highway miles, but definitely not as good performance as current.

If your front is -1.4, then I agree with the person who recommended -1.0 rear. That should be a decently good camber match to front at -1.4.

Within the range of "reasonable" camber levels (i.e. not hella flush 7 degrees and such) more negative camber in rear will provide better rear traction, resulting in more front push in corners. Less negative camber in rear will provide worse rear traction resulting in more rear slide / more tail happy. Happy medium depends on the driver and their experience level. For a beginner, stick with no more than +0.5 compared to front camber (IMO)
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Old 10-23-2015, 04:35 PM   #8
xabre1200
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Quote:
Originally Posted by Concillian View Post
This depends on how much performance you want.

For a fairly neutral setup, run the rear at ~0.2-0.5 degrees more positive camber the front (front -1.2 then rear is -1.0 to -0.7, for example)

Daily driving no performance driving, tire wear is good around -1 to -1.5 front then the associated positive offset for rear. High performance driving will see benefits to -2 to 2.5 degrees front camber, but this will increase wear on the inside of the tires if you do not drive high performance often. Pick somewhere between that based on your preferences. I currently run -2.2 / -1.7 but my freeway miles definitely wear the insides faster than the outsides (but it sticks awesome in the corners) When I was -1.2 / -0.5 it was more tail happy and rotating tires regularly resulted in pretty even wear with my mostly highway miles, but definitely not as good performance as current.

If your front is -1.4, then I agree with the person who recommended -1.0 rear. That should be a decently good camber match to front at -1.4.

Within the range of "reasonable" camber levels (i.e. not hella flush 7 degrees and such) more negative camber in rear will provide better rear traction, resulting in more front push in corners. Less negative camber in rear will provide worse rear traction resulting in more rear slide / more tail happy. Happy medium depends on the driver and their experience level. For a beginner, stick with no more than +0.5 compared to front camber (IMO)
Thanks for the terrific reply! I'll definitely be dialing in my rear camber at -1.0 to match my -1.4 for the front.
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