IAT sensor placement?

[Daguse5853Z]

Intake air temp sensor on obd2. Going from NA to turbo. It makes sense it should be after the IC close the the throttle body, right?

[Azrael]

It's always a good idea to let the computer know the conditions of the air right before it enters the engine.

[robertisaar]

It's always a good idea to let the computer know the conditions of the air right before it enters the engine.

X2, i would want it as close to the TB as possible.

[RedZMonte]

my IAT sensor is about 6" before the TB after the IC. If it helps you can buy a IATs for a 1991-4 Syclone/Typhoone or a 1989-90 Turbo Grand Prix they have the same connection but they are threaded (brass fitting). I drilled a hole in my charge pipe and screwed it in, Works great and won't pop out under boost or cause leaks.

S

[AleroB888]

I run mine in the intake manifold :



That's the best location for an accurate reading of what the engine actually sees after boosting and intercooling.

[SappySE107]

The TGP motors had the IAT in the manifold as well, and the best location to measure is near the intake valve. I think the IAT parameters in the computer that compensate fuel and spark would be different though depending on where you get your readings from. Since this is NA to Boost, I would say closest to the TB or behind it so long as you prevent heat soak from skewing the numbers.

[timg]

I would also put as close to the stock location in the intake as possible, but after the turbo. If you have a push in sensor, either put it before the turbo or replace it with a screw in sensor.

Tim