Turbo Size Calculator - How It Works

[@WhimZyHasAYouTubeChannel]

You reference boost in the volumetric efficiency section. What if the engine is naturally aspirated stock?

[@DriveTuneMedia]

The VE calculator gives that number in the last box, above the section dealing with boost

[@unclemajboor3118]

Thanks buddy

[@DICEMOBILEMECHANIC]

Is reading the exhaust flow chart the same as reading the compressor map??

[@DriveTuneMedia]

You need to know the turbine inlet pressure to get the pressure ratio. (turbine inlet pressure divided by MAP).
For airflow, Garrett call it "corrected" airflow. Im not sure what they do to "correct" the airflow number.