Engine accelerates above throttle rpm

[neodemon]

Hello,this is my first post on this forum.

I'm trying to get driveline code out of CarDynamics to simulate clutch/throttle without using any physics (bullet). All car parameters are taken out of Audi TT .car file.

When im simulating CarDynamics with clutch = 0.9, and throttle = 0.3 engine is slowly going to rpm_limit. In reality throttle position(and driveline - when engine and driveline are coupled through clutch) determines max engine rpm(between start_rpm and rpm_limit).
Is it intended, or is it my fault? (I simpified ApplyWheelForces to just apply torqes calculated by CalculateDriveTorque)