cool video !
I always liked the 935, because it was basically a prototype but still (loosely) based on a production car. Impressive how safety standards have evolved, they had fiberglass seats with a BOLT IN aluminium roll cage. ALUMINIUM haha.
An old guy I work with used to work for the factory Porsche team in the late 70's and early 80's in the US and Europe. He told me the rear half shafts on 935's were titanium and they had u-joints, yet they still had to limit the power because it was the weak point in the drivetrain. Full power was not used for complete endurance races, only for qualifying and overtaking.
Apparently, there's a manual boost controller knob on the dash, and when it was wound up all the way the boost gauge would go out of range and do a full turn more before settling... Of course it was very thirsty for fuel, on full power fuel consumption was close to 150 litres per hour, depending on the track, that would work out to around 100litres / 100km