Boost, efficiency, intake temps etc.

[Michael Gough]

Hey everyone,
Going along with the talking about turbo efficiency...
I have a KKK K24 turbocharger from a 1983 5000 Turbo diesel on my JT engine.
According to the SAE paper on the engine, it ran 11psi on the TD. On my
engine, after going through the intercooler and piping, I have about 8-9 psi
in the manifold. I doubt anybody has any expirece with this turbo, so I am
wondering what kind of intake temps are too hot. I am going to raise the
boost a little once I get my new fuel system, but I don't want to go past
the point of diminishing returns. So if anyone knows what is "too hot" in
terms of intake temps, please let me know.
Thanks
Mike