Taking advantage of the hot summer temperatures to go out and make a third gear pull with the Shuenk IS38+ turbo.
Starting intake air temperature of 120 degF and boosting to 25 psi drove timing advance to zero. Compressor outlet temperature peaked at a toasty 330 degF (also shown on the left y-axis but not labeled). The compressor outlet temperature curve is in reality slightly shifted to the right from what is shown on the chart, but to better fit on the chart it is shifted slightly to the left.
This is using the Eurodyne IS38 base adjustable file.