I wonder what the difference in the relative humidity was when it was hotter or cooler?

 

I've always reported my temperatures at cruise. I know it goes up at idle, but I haven't ever sat there and waited to see how high it goes.
Do you think more humid air would transfer heat better?

 

even at cruise, i am at 100*.

The humid air would be more "conductive" or "susceptive" to heat or cold transfer. In our sense, IAT sensor being in the manifold, the humid air would help (or hinder, depending how you look at it) conduct the ECT and combustion temps. Same as beer in a cooler. Add water and everything gets colder faster. More surface contact at the molecular level.

 

That brings up a question that has always haunted me. Does the space shuttle have larger than normal radiators, because there is no air in outer space to transfer heat, or are they smaller than you would expect, because outer space is at almost absolute zero degrees?

 

i didn't drive the truck today, but i did start it and back out of the garage to make room to wash the bike and such. my iat read 44 degrees. i've never seen it that low before. wish i would have went to the track today damnit!

 

Mine is relocated to 4" before the intake manifold... After the intercooler.

 

Um I have a answer, it doesnt have any radiators. Rocket engines and jet engines do not have cooling systems. With the exeption of a jet engine haveing a oil cooling system for the the bearings, the oil system is cooled by the use of a oil/fuel heat exchanger. High altitude in jets means cold fuel in the wings and the cold fuel is used to suck the heat away from the oil. Unlike piston engines jet engines like hot fuel. Dont get me wrong you can overtemp a jet engine but it doesnt happen very often, if it does it usually occurs on takeoff when there are being pushed to TRT ( take off rated Thrust) Basically max power for that particual day and weather conditions. Like a gasoline engine a jet engine can make more power on a cooler day due to the denser air charge that it can ingest.

 

Sorry, I should have said heat exchangers. I meant for the systems that cool the equipment, or people , if needed. I know the engines don't have them, because there is no grille above the front bumper.

 

Haha, as too the equipment, people etc on space shuttles I am not sure. Of course they have grills, chrome ones for bling. You just cant see them.

 

alright alright...you are blessed with low IAT's we aren't. Stop rubbin it in already.