NHRA Funny Car engine explosion

[arvidj]

If you look at the video frame-by-frame there are several frames where you look down thru the cylinders of the block as it spins. Where one normally expects to see pistons and crank a view of the white and red of the hood show up clearly. I am assuming said pistons and crank exited the vehicle with a similar velocity (Newton's third law or something like that) in the opposite direction of the block. We don't see them because the vehicle probably drove over it (probably some number of Murphy's law).

I counted 4 turbos. Two at the very back that seem to have be in parallel feeding two more that seem to be in series. I have heard of systems like that with a claimed 100+ psi at the intake manifold.