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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > help me with my alignment specs....



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      05-01-2017, 01:37 PM   #1
miker2013
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help me with my alignment specs....

335xi 2013 coupe all stock

here are my current alignment specs... can i go any tighter on anything? i like the current setup the steering feels very precise but can i tweak the toe a little more? also will removing the alignment pins for camber be worthwhile and how far can get the camber by removing the pins? i am preparing to put on new shocks and springs but i want to get the alignment dialed in 100% before and after so i can see what affect it has

LF RF
-0.30 CAMBER -0.29
-0.02 TOE -0.02

TOTAL TOE 0.04
STEER Ahead 0 (what does this mean?)

LR RR
-1.34 CAMBER -1.39
0.05 TOE 0.04

TOTAL TOE 0.09
THRUST ANGLE 0 what does this mean?

thanks
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      05-01-2017, 04:22 PM   #2
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Although I see where you are coming from, I would think you should be waiting until all your new suspension equipment is installed first before doing alignments. Removing the alignment pins will net you barely half a degree of upfront camber. Thrust angle of 0 is exactly what you want. Check out this helpful guide to understanding alignment:

https://www.tirerack.com/tires/tiret...e.jsp?techid=4
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      05-01-2017, 09:02 PM   #3
miker2013
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thanks... so how far can i go with toe then? is -0.02 as far as i can go? assuming i don't care about tire wear?
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      05-02-2017, 09:07 AM   #4
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Quote:
Originally Posted by miker2013 View Post
thanks... so how far can i go with toe then? is -0.02 as far as i can go? assuming i don't care about tire wear?
There is a ton of toe adjustment available in the front. You want to keep it at 0 or maybe even a little toe-in (positive toe). Running front toe-out (negative toe) is going to make the car feel twitchy and hard to control. I do not feel comfortable driving with toe-out on the street.

Changing camber also effects toe, but changing toe only will not effect camber. Increasing negative camber causes toe to go negative. If you pull the alignment pins for that extra -.5* camber you'll end up with -.15* or more of toe-out and you'll need to re-align the toe back to 0.00-0.10 toe-in.

Last edited by bbnks2; 05-02-2017 at 09:12 AM..
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      05-02-2017, 09:07 AM   #5
FCobra94
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Quote:
Originally Posted by miker2013 View Post
thanks... so how far can i go with toe then? is -0.02 as far as i can go? assuming i don't care about tire wear?
huh?

what exactly are your goals at the end of the day?
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      05-02-2017, 12:19 PM   #6
miker2013
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Quote:
Originally Posted by bbnks2 View Post
There is a ton of toe adjustment available in the front. You want to keep it at 0 or maybe even a little toe-in (positive toe). Running front toe-out (negative toe) is going to make the car feel twitchy and hard to control. I do not feel comfortable driving with toe-out on the street.

Changing camber also effects toe, but changing toe only will not effect camber. Increasing negative camber causes toe to go negative. If you pull the alignment pins for that extra -.5* camber you'll end up with -.15* or more of toe-out and you'll need to re-align the toe back to 0.00-0.10 toe-in.
do u think pulling the pins will be of any real advantage on a daily driver assuming i want to help the pushing and understeer at the front end of my 335xi?

i have been driving with neg toe and i like the quicker turn in but that is with the softer xi suspension and rft tires
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      05-02-2017, 12:24 PM   #7
miker2013
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Quote:
Originally Posted by FCobra94 View Post
huh?

what exactly are your goals at the end of the day?
my car is a dd but i found a big difference in these current setting than the stock xi alignment both in turn in feel and feel at the steering wheel

so basically i would like to see if i can adjust toe or camber a little more to improve turn in and or to help with grip at front of vehicle
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      05-02-2017, 12:52 PM   #8
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Pulling the pins will definitely give you an advantage, but likely won't be enough for your intended style of driving. I would absolutely look at either fixed or adjustable camber plates as that's where you'll likely see the biggest bang for the buck though...not sure which brands/models offer compatibility with the xi, so you'll have to search that out.

As for toe, agreed; get your camber squared away (you'll likely want somewhere north of 1.5* minimum up front) then set toe up front to 0.
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