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with the Viggen Rescue Kit? This kit has **nothing** to do with any of these components -- halfshaft length, halfshaft compliance, nor spindle length.
My belief and understanding is that there are other forces affecting camber steer -- a term I **do** subscribe to. And that is the poor engineering with regards to the steering rack mounts and firewall strength, as well as a sub-frame that has no cross member to complete the "box" for the suspension geometry.
The basic kit for the Viggen Rescue Pack that I just had installed this past weekend is ingeniously simple: billet aluminum steering rack bracket with a steel shaft running from it to the front right shock tower -- basically at a 45 degree angle to take up some lateral tortional energy, and a lower cross brace bar underneath the engine to firm up the two subframe halves -- essentially completing that "box" I had mentioned.
Other components, which I have not yet installed, are the polyurethane bushes replacing the idiotic oil filled rubber units on the connecting arm, and bearing replacing rubber bushes on the trailing arms. While I'm sure these will also have quite an effect on the suspension, even without these installed, the two compoments I have installed (brace bars and steering rack bracket) have an astounding effect.
Again, they have nothing to do with spindle length, half shaft length, whatever. In fact, Saab consiously went out of their way to ensure that these components were eliminated from the equation -- an intermediate shaft is engineered into the drive train and has been since the 9000. The old 900's don't have as much torque steer as ours (even base 9-3's are more squirelly than C900's) and yet they are slightly of un-equal length (tranny sits slightly to the left.
Bottom line is that I don't think it is torque steer per se, rather it's a weak suspension mount that allows torque to "shine through", if you will, and could quite easily be rectified at the factory if they would just OEM a GD cross brace underneath and build a more robust steering mount.
'Course, that's just my opinion ;-)
On the TT, slip could mean a differential slip, I would expect, and the rear wheels should still take up the slack. I'm not as familiar with this AWD system. I have to believe any type of AWD system is better than any 2WD -- front or rear.
My wife drives an A4 with the Torsen system. That car is rock solid, never do I feel any kind of "wiggle". It's also a lot heavier, and feels every bit of it. Handles quite well, but takes a while to get to speed. Granted, the 2.8 is rated at 190hp, but even before I tuned my 900 to 230hp (estimated, not yet dyno'd) at the pre-tuned 185, it could still pull our Audi, because it was that much lighter -- no AWD, etc.
Alright. 'Nuff ramblin' It's all good anyway.
Jim M.
, Fri, 15 Jun 2001 10:32:45, Fri, 15 Jun 2001 15:03:41
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