T3 FULL coil over system (front and rear), who is using them

[NoHachi]

drako323 Wrote:If you give 3mm preload you are going to have 54mm rebound travel (from ride height) (actually I took 240kgr in the rear, so it's 240/4.5-3=50.3mm but close) so you are actually off the perfect setup. This would require rather leaving 3mm clearance, which isn't much, but if you lighten up the rear and fit a stiffer spring (for going to the track) this problem enhances.

Now as far as length is concerned, I'm not sure about the operating range of the spring, I guess you could use down to 220mm with those facts.

Mine are also about 260mm (4.5kgr/mm) and set up according to ride height (I wish there was separate damper length adjustment), which means about 12mm clearance (opposite of preload), 65mm rebound travel and 55mm bump travel.

Hey Drako, you are absolutely right.. I have 3mm clearance, not preload. Its set that way at the moment, so equal bump/rebound (compromise). 3mm isn't enough to make the springs rattle I guess, especially since it only releases the springs at the very extremes of handling.
For AE86s with very light rears the equations change, so you have lower initial sag in the chassis, but also less total roll for the same lateral force.

Did you ever try setting a bit higher ride height on your car? You could try and see if it feels better. Send me a PM or email if you want the spring setup sheets from Eibach that contain the springs operational ranges.