sa-charging solutions is a swiss based and privately owned company specialised in the development of engine charging systems. We provide turbocharger maps of automotive series production turbochargers measured on our in house hot gas testbench. Compressor maps and turbine maps are used to evaluate the thermodynamic behavior of a turbocharger as a main element of a supercharged engine. They also represent a very important data set for 1-D engine process simulations (e.g. GT-Power) usually used in