Since we're still in beta, I believe some new inputs can still be added.
what I request are two inputs:
1) An input that links radiator-cowls to rotators, this way we can simulate the radiator cowls in whatever vehicle we want, so we don't depend exclusively on radial engines to have such input.
2) car engine RPM input, I know for sure that car engine RPM rarely matches the amount of throttle that is applied, so throttle-based tachometers are a no-go.
I'd like to request the input for the car engine RPM so we can make precise tachometers, the same goes for every airplane engine, both piston and jet powered.