Suspension Road race track alignment settings?
The easiest way to adjust the rear toe, is by just barely braking the bolts loose and then make adjustments with a pry bar. If you loosen them all the way up you will be forever chasing the adjustment.
6th Gear
Joined: Jan 2006
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Lol tell me about it. I had one idiot tell me that "he'd been brought up to do the 'right thing', and everything should be done properly" or some rubbish like that
Just got my alignment done....
Boy did I need an alignment... They gave me a print out of all my specs. As Slinger688 said, Caster could not be changed and remained ~4.0 degrees.
My rear tires have -2.25 degrees of camber where as my front only have about -.80 degrees. I asked for oem spec as much as possible, but from what you guys have been discussing, this seems like a lot negative camber (for the rear.) Wont this cause more understeer under hard turning?
Additionally, my rear right wheel's toe was misaligned and could not be adjusted (bmw specific tool required?) Its at +0.28 degrees of toe which was just out of the oem spec of 0.22 to 0.25. They assured me this wasn't that big of a deal but considering my other rear wheel has 0.22 degrees of toe, I am wondering if that is necessarily true.
Lastly, anyone know where I can get this magical bmw tool that is used to adjust Toe angles?
Boy did I need an alignment... They gave me a print out of all my specs. As Slinger688 said, Caster could not be changed and remained ~4.0 degrees.
My rear tires have -2.25 degrees of camber where as my front only have about -.80 degrees. I asked for oem spec as much as possible, but from what you guys have been discussing, this seems like a lot negative camber (for the rear.) Wont this cause more understeer under hard turning?
Additionally, my rear right wheel's toe was misaligned and could not be adjusted (bmw specific tool required?) Its at +0.28 degrees of toe which was just out of the oem spec of 0.22 to 0.25. They assured me this wasn't that big of a deal but considering my other rear wheel has 0.22 degrees of toe, I am wondering if that is necessarily true.
Lastly, anyone know where I can get this magical bmw tool that is used to adjust Toe angles?
I've been thinking that changing the caster to 4 to 4.5 deg would be a great improvement for autoX in combination with the -1.6 camber from Ireland fixed plates. But I have been told that changing the caster can cause high speed vibration issues. It seems that if the factory changed this then my idea should be do-able. Just need to make the plates.
BTY - the spec sheet that I got lists the factory rear camber as 0.7 deg and the factory toe as 0.16 +/- 0.04 deg (0.2 deg max). The toe appears to be adjustable by this sheet. Your number seem high compared to these, especially the camber if you have not done any suspension mods. But -2 deg rear camber may not be a bad thing, the other posts here seem to think an increase is good
Last edited by Eddie07S; Aug 28, 2010 at 05:57 AM. Reason: typo
5th Gear
Joined: Jun 2009
Posts: 663
Likes: 11
From: Maryland
Don't know about that rear camber spec. Be sure you are not confusing degrees with minutes. About the maximum adjustment at stock ride height is -.4 degrees in the rear using the lower eccentric bolt. Lowering the car of course increases negative camber.
Note that the rear geometry generates camber change to just about match the body roll. You may not need that much rear camber. Get the front to not plow, then worry about it.
Rear toe is adjustable. You loosen the trailing front mounts and slip it around a bit after you set the camber. No special tools are need.
Note that the rear geometry generates camber change to just about match the body roll. You may not need that much rear camber. Get the front to not plow, then worry about it.
Rear toe is adjustable. You loosen the trailing front mounts and slip it around a bit after you set the camber. No special tools are need.
I hate not knowing this stuff and having people tell me something "special" is needed....
Thanks for letting me know.
I mean... according to my spec sheet, it has that small o sign on the upper right corner of all my numbers... I am pretty sure its degrees. There is an image next to each spec (camber/caster/toe) with an arrow between two lines (that form the angle).
I think that is the last time I take my car to a subie oriented shop (except for Dan at MachV).
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