16-17 psi is the limit of maximum efficiency, what you're doing is running it off the chart. Here, have a look:
![[Image: plot_map.php?mode=plot&pr=2.000278989377...compressor]](http://www.motorgeek.com/portal/block/mx_turbocalcs/plot_map.php?mode=plot&pr=2.0002789893779895&flow=12.268277481864954&map=GT15%20compressor)
Pressure ratio is absolute pressure in bar, so 24psi is ~2.65pr, even as it drops off the line will still be way out from where you want it to be. That's why people are starting to include another turbo in their stage 2 builds.
Pressure ratio is absolute pressure in bar, so 24psi is ~2.65pr, even as it drops off the line will still be way out from where you want it to be. That's why people are starting to include another turbo in their stage 2 builds.