Bet you they won't be fuelling up with the "rocket" fuel used in the original turbo era.....85% toluene amongst many other interesting ingredients.
and I suspect that they won't be running at 5.5 bar boost - that was Berger in qualifying at Monza in '86 (I think) before they started restricting boost.
As a volumetric equivalent of a normally aspirated engine, in a turbo engine each bar of boost doubles the effective volumetric capacity (rather like compund interest). So, 1500cc at 1 bar boost is the equivalent volumetric efficiency as a 3 litre engine, x2bar = 6 litres, x3 = 12 litres, x4 = 24 litres, x5= 48litres etc.. you get the idea. That's why turbos are so effective -but the higher boost you go, the finer the control has to be over the fuel, timing etc. That's why the qualifying engines in the 80s were "hand-grenade" specials running at 4-5 bar in qualifying and 2-3 bar during the race, and why mixtures were run rich to help valve cooling and prevent lean running - led to the lovely overrun flames....
Lots of other factors came into play, such as the tyre wars of the time, fuel concoctions, and the fuel limitations on consumption during the race. I suspect it will all be a bit more controlled now....
MG Mark
