Mk7 GTI Airbox Temperature Probe

Air Scoop Preparations

Investigating if the air scoop has a measurable affect on the conditions entering the GTI intake is something I’ve been doing preliminary work towards.

Mk7 GTI Airbox Temperature Probe
Airbox Temperature Probe

A temperature probe has been mounted at the outlet of the stock airbox to help test for changes in air temperature entering the system.

Eventuri Scoop Installed
Eventuri Scoop Installed

Installed into the top of the grill is the Eventuri scoop with a home made border.

Intake Air Temperature Variations
Intake Air Temperature Variations

The car is now equipped to record ambient air temperature, air temperature exiting the airbox, air temperature exiting the turbocharger, air temperature exiting the intercoolers, and air temperature inside the intake manifold.

As the chart above illustrates via the arrows, air as it travels along the intake path undergoes some significant temperature changes.  It also makes evident the futility of trying to assess a part that is changed prior to the airbox, green line, by looking at the IAT, red line.

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