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  • less WHY; more WOT
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  On 26/08/2015 at 7:41 AM, IH8TOADS said:

Air temp is measured by the t-MAP....so in the manifold.

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  • Moar Powar Babeh
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Iat is internal in the tmap. Tmap = temperature and absolute pressure for the manifold

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The turbo will put out hotter air when it is worked regardless.

However the sensor will get a bit heat soaked when you are cruising around.

Start pushing more air thru and it cools the sensor down a bit.

Location of sensors is very important. I don't like the IAT sensor being positioned in the engine bay. It should be located on the outlet of the intercooler to get a more accurate reading.

Also the air getting thrashed around a bit more in the intercooler may be another factor.

It is a good observation. Maybe you can change the position of the sensor down the track. Don't know how it will affect the map part. But for now don't worry about it too much.

When I did programable engine management systems I would put the iat temp sensor out of the way of any heat. Otherwise it would muck up fuel temp compensations, it really would not reflect what was going on if located in a position of where heat would radiate onto it.

Edited by turbotrana

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