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Go Back   IWSTI.com: Subaru STI Forums > STi Technical Discussion > Suspension, Handling, & Stiffening


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Old 05-06-2008, 08:37 AM   #1
Junior STI Driver
 
Car: 06 WRB Sti
Location: Boston MA
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Default Suspension problems - and fixes

I figured I would thow this up as I've been through some suspension issues recently and this might help someone searching.

Setup is RCE Tarmac II coilovers, RCE rear pillowballs and RCE version 1 lowering camber plates. Whileline sways, ALK, endlinks etc.

1) Rear Camber bolts : Check the torque on the rear slots / bolts used on the Tarmac II's for camber adjustment. The torque specs for these are much higher than the factory torque specs used in non slotted holes. ref recent experience with sudden loss of all outside rear camber mid corner after getting an alignment done.

2) Camber Plates and high -ve camber : If you are maxing -ve camber with these watch for the top perch hitting the inside of the camber plate. I did not realize these were doing this and was having all sorts of alignment issues, the alignment kept changing, the car would pull to one side then the other etc. The key tip off was when the machine read 10 degrees of caster one time then 5.5 degrees next time after a quick drive with no adjustments. This did not happen untill I tried to run -2.6 degrees or more in the front so most people will be fine.

I'm switching to the new version and non lowering plates to be able to get the camber I'm looking for.


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