S&J wrote in Tue Sep 21, 2021 9:48 am:TheEagle wrote in Mon Sep 20, 2021 11:22 pm:Maybe, if you tell me what an FTH is ?
It's the alt to which the turbocharger is able to generate it's maximum manifold pressure, after which MP drops off with increased alt.
FTH is the abbreviation for all that?