Quote Originally Posted by Dean68 View Post
Does anyone have any experience with their VX on these brake testing machines?
I've never heard of such a machine. However, I would ask them if there is a minimum wheelbase that their machine will accept. I know for a fact that they won't run a VX on the rollers for the Colorado AIR program because of the short wheelbase and AWD. They can't get their dyno rollers close enough together to test the VX, so they do a simple 2-speed idle test instead.

So it might just be possible that the rear wheels aren't on the sensor. Also, if they really slammed on the brakes, the back end might even come off the ground, in which case it might appear to the machine that the back wheels aren't exerting any force on the plates.

I would want a second opinion from the test guys... find the one guy in the place who handles the special cases...