[Piwoslaw]

Originally Posted by Arragonis

PW - apologies for jumping in again to ask questions - before the intake changes did you record before and after intake temps ? Do you monitor them now and if so what do you get ?

My intake temperature sensor is before the turbo, so it doesn't register any change between blocked and unblocked intercooler. As for blocking the hole between radiator and intake scoop - it's too early to tell, but I doubt that I'd notice. This is because the intake duct snakes around the engine like a heat exchanger, good if it was a gasser and I wanted a WAI, but since it's a diesel I wonder about the sanity of PSA's engineers More details here: More efficient air intake (1.6HDi) - ideas.

What really increased engine and intake temperatures was the upper grille block and engine insulation.

Nichols735: Just the lower grille block doesn't effect coolant temps when driving in flat terrain - it stays at 78°C. Adding the upper grille block kept temperatures closer to 88°-92°C, with ambient temps at or below freezing.
Driving uphill brings the temps up (85°-95°C) and then I open the lower grille block.
I hardly ever hear my fan turn on (only when the A/C is on), but this is what happens when you hypermile a turbodiesel