Well I just completed reading this whole thread. Looks like I was a little off base with My ECU comments. But I also learned a bit and really confused. ie: The Rover Filter can has a venturi on the front end presumably to gather fresh cool air into the system. But also at the front of the filter can is a heat riser that gathers heat from the exhaust manifold and then to add a bit more heat there is a hot water heater just in front of the butterfly valve. I suspect that the ECU has parameters of just how much temperature that is optimum.
On the hand held for My MSD EFI there are two temps Engine Temp and IAT temp. I think IAT stands for "Intake Air Temp". It is hard to watch the handheld carefully and drive. Think cell phone. But it looks to Me that the IAT temp is about 10% less than the engine temp. Now My MSD system is like a Carb and just gather air from the engine compartment.
Is the end game to gather initially cool air and warm it to a temp certain that the ECU is looking for?
