Looks like that 8.5psi is based on the spring pressure... Most gears that seems to be the peak.
This morning I did a full throttle run all the way to the rev limit in 4th gear and got all the way to 11psi. I am guessing at that point I am out flowing the wastegates and spiking a little.
So as it stands, I am probably at the limit of both my fuel system and wastegates... so if I ever wanted more power it would be a reasonably pricey path forward as both of those would have to be upgraded at a minimum... And my invidia exhaust is only 60mm so I would probably consider upgrading that too. Seems like I'm probably done with performance mods for a while!
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