Quote:
Originally Posted by Coan
My one comment would be that while torque steer is a side effect of excessive power at the steering wheels, "bump steer" is not affected by drive type. It's entirely due to suspension geometry, and if it's present in an SVX it will be there regardless of drive type.
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The phenomenon which I am describing is the tendency of the front wheels to pull the vehicle in directions as the front wheels go over bumps. This phenomenon is eliminated in the VTD setup as far as I can tell. It is one of the most annoying FWD tendencies.
In any case, my point is that the car tracks much better. It seems that the geometry of the rear suspension is well suited to handling more than half of the torque, and the car really "feels" more like it is going where you point it instead of going where the front wheels are pulling it. It is difficult to describe.
As for which models had what:
All US models were 3.545 full time active MPT based AWD (ACT-4) EXCEPT:
1994 LE, L, LS models
1995 L models WITHOUT Active safety group option
JDM and AUS cars are VTD, along with some other regions. I believe germany got the ACT-4 where much of the UK got the VTD. Someone feel free to chime in here that knows the exact regions. The AUS VTD trans uses a different TCU and an internally mounted speed sensor no. 2. I believe one or two have modified it to work with the external unit.