We did alot of trial and error when strapping cars down for the dyno. We had a couple FWD cars with wicked torque steer that made some of us nervious but we never seen this. http://www.youtube.com/watch?v=Lj0-_K_RsmA
this has been posted a few times before... http://www.jalopyjournal.com/forum/showthread.php?t=265915 for one... still not cool.
I used to run the "Roll Test" at Ford and NO straps just rollers in front of back wheels. Had one come off inside the Factory and wiped out the right side of a Bronco when it hit a school bus frame. WILD RIDE!
Even nastier now. That video was shot a couple years ago. I believe it made just shy of 1000 whp then. This year I believe it made 1200 at the wheels.