It should be good enougb if you dont beat the shit out it. Also Derek Robinson doesn't work for TSP he has his own shop IMW. I was on the 23psi basemap for a couple of weeks without any hiccups then got Etuned by Derek
My full bolt on Si, with E40 and this turbo made 256whp and 257wtq on a dynojet with the Ktuner 19psi base tune.... Cant wait to get tuned at 29-30psi. I had a slight hiccup so I couldn't continue with the tune. Very impressed with the basemap numbers though and that was only revving to 6k rpms.