[83bj60]

Excellent posts of late! I was also wondering, and found suspicious, that a temperature drop of X would produce the same temperature drop in the exhaust. I believe the effect of increased oxygen availability/air pressure on combustion efficiency and flame front speed was forgotten, and can explain why in real life the EGT temperatures drop in fact by a much wider margin than what is simply produced by the intercooler intake temperature drop.

Now let me add another question to this discussion: what about use in winter time when temperatures are extremely cold? Shouldn't the intercooler be bypassed when air is very cold, or when the engine is cold? Hasn't anyone noticed that the engine seems to work at its best around 10C, indicating a real effect by intake air temperatures?