I am running a Xray T3'11 with 17.5, stock timing, and rubber tires. I had some trouble getting around the tight 180 degree turn last week. The only scres not installed are the steering post standoffs.

I am also running a T3'10 VTA setup. and that car seemed too loose on the rear end at mid corner/corner entry. No steering standoff or rear chasis braces on that rig.

If that helps.

So you basically setup a car for the surface you will be running on and fine tune from there? I guess my reason for asking was the inital confusion on what intial setup is recommended for carpet/asphault.

Additionally, Xray has so many options for stiffness, chasis flex, hard arms, hard hubs, etc... I just can find a reference on how each part changes the car. If someone told me that with a carpet car, you need to set it up stiff. I would do it and vice versa.