timbar32
it says 10,000RPM not 100,000RPM. Its not a turbine....
the type racing this will be used for involves a lot of runs per meet, so it has been engineered to produce this power consistantly with needing a rebuild every run.
Basically nothing in the entire engine is off the shelf. Even the cam is considerably thicker than in the engine its based on. The write up on this suggests rather extreme levels of engineering.
7.2L, 4 turbos & 10,000RPM would sound unbelievable on the track