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Old Nov 26, 2008 | 06:58 AM
  #36  
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dojj
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From: Little India
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Originally Posted by dojj
i got one of them right and was going to put 3 but wasn't clear on what "intake" was as it could be the air going into the engine or the temp of the air going into the inlet manifold

so, when it's described as "intake" what is being taking in?

thank you please
Originally Posted by Christian and Beccy
We try to get the IT probe in the vicinty of air of a similar temp to that being consumed by the engine, so in the cell close to the car is good, but not in the engine bay.

If its in the engine bay itself, the air is much hotter there and not a true reflection of the actual intake temp because the air going into the engine hasn't been in the engine bay long enough to get that hot. That's my slant on it anyway.
Originally Posted by Chip
On the graph in question, the person informs me the intake temp probe was put INSIDE his boost pipework.

I personally think he MUST have that incorrect, as I just dont see logistically how you would get it in there, but on the other hand it certainly looks like it was!
so where should this temprature measurement be taken from then?
one side of me thinks that putting it as close to the actual inlet manifold as possible because then you have the actual temprature of the air that is being used by the engine, after it's gone through whatever induction pipework form the air filter, as possible to see what sort of fueling you would need

the other side of me thinks that it should be placed at the air filter side so that you know the temp of the air coming in, and that the sensor may misread due to it being cooled/heated by the air rushing past in the inlet manifold and generally being hotter than it should due to the heat coming from the engine

is there a difiniative right or wrong answer to this or does it depend on the operator in question?
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