Turbo Charged Normal Engine Temp.

[Over40]

to Parmas: your suggestions are appreciated.

At the moment I am installing an oil temp gauge, and I am constructing an hood air scoop to vent the turbo (the turbo manifold is behind the engine block)

My assumption of getting temp lower comes from my experience, that on hot afternoons, I can only run my car max of 180kph, but on cool nights, I can get it to 200kph (same road...). Aside from other aspects (cooler air) and engine lifetime, I just want to assure that cooler engine provides better power.