Seven times the force of gravity, downward, will be required for the cars piloted by Tanner Foust and Greg Tracy to complete their largest-ever parallel loop at the Los Angeles X Games. To get ready, they've gone up in the air to see what 7g feels like.

Spending a day getting their organs stretched by a fighter pilot, after a pep talk from a scary-looking scar-faced bald man, the two drivers look to be quite ready, neither losing consciousness in the hard upside-down pulls.

Of course, it's going to be quite different pulling 7gs while also maintaining control of a car side-by-side with another. Given that Foust probably weighs about 160 pounds, it will feel like he weighs  1,120 pounds at peak force during the loop.

Check out the teaser video, and mark your calendars for 11:20 a.m. Pacific time on Saturday, June 30 to see it happen live.