There physically isn't room for enough rack spacer to correct for the raised spindles.
Even if all you wanted to do is get back to the stock curve, you'd have to use 19mm of rack spacer. This due to the fact that raising the spindle effectively worsens the relationship of the tie rod to lower control arm. If you want to go further with a slightly lower ride height and add 15mm more rack spacer, to be equivalent to the Bruce Anderson recommendation for lowered cars (which you cite as the solution you are happy with) you're up to 34mm of rack spacer just to get to the equivalent point where you are at with your car. Since there isn't room for that sort of nonsense above the front crossmember, the bump steer kits that replace the outer tie rods come into play.
Quote:
Originally Posted by Bill Verburg
Then the better solution for you on that car is the rack spacers
I hate to beat a dead horse but once again
suspension curves for a stock 911 at std 108/16 ride height w/ stock suspension
The relevant curve is vorspurverlauf, toe change
The red line shows where you are w/ a 40mm lowered chassis(yes up on the y axis is suspension compression or chassis lowering), at 40 mm compression there is -34' of toe added over the static setting( yes that is toe in). Each of the y axis ticks is 10mm , so for 19mm drop look up just under 2 ticks then go left to the curve, the slope of the curve is an indication of roll steer at that height, the magnitude is given by the x axis value corresponding to where you are on the curve( it can also be represented by the ordered pair( -34', 40mm), notice that the slope at 19 is the same as at 0, same bump characteristic rate. W/ a stock suspension you may wish to correct that back down, use a 12mm rack spacer and now you are just up 7mm from where it was stock, again since the slope is the same the rate at that point is the same as it was originally |