If the gear reduction is part of the turbine in the calculation, then the simple horse power calculation goes away. I still can’t get it to work well however.

Just saw your original comment about gear reduction - yes, you’re completely right, basically every turbine engine has an internalized gear reduction, since you need to get the power out of the turbine anyways, before it ever even sees a transmission. These are usually in the range of 3:1 to 10:1. That turbine speed…

That demolition video brought tears and now I want to die. These cars are so cool and also sparked my appreciation for the designs of Elwood Engel.

Idle is 20k rpm. That’s still calculating around 1600 hp or so given a torque of 425 ft-lbs.

Torque peak is going to be at the lowest speed it can do without stalling. HP in comparison is likely going to increase in a flat line (Or damn close to it) the whole way through the rev range. That’s really common for turbine engines:

Something is off with the specs. It says 425 ft-lbs of torque and 130 hp with an idle of 18,000 and a max rpm of 60,000.