Originally Posted by DaKarMaul
yes it matters if you want to know how much boost is at the intake manifold generated by the turbos compressor side alone, but as the pressure that goes into the cylinders is what's at the manifold if you get 26psi then you get 26psi. so it's not like the pressure gauge is overstating what is going into the engine itself.
yeah i know what you mean, but what he's saying is that not all of that "26psi" is actual intercooled turbocharged air, and that the exhaust backpressure which is not even worth burning is casuing to show false boost readings.