Just because I cannot get enough testing of this part, or rather it’s easy to test while doing other stuff so here I go again.
The Air Scoop leading into the airbox has been tested before, now it is being tested again with a different sensor and a relocated sensor to see if it has any affect on the condition of the air passing through the intake.
New to this test is a differential pressure transmitter (picture 2) that is setup to sample the air pressure at the inlet to the Eventuri air intake (picture 1), and at the Turbo Inlet Elbow (picture 3).
Also part of this test are a pair of temperature sensors, one located in the air inlet (shown in picture 1) and the other in the Turbo Inlet Elbow (below).
Two conditions will be used for comparison, steady driving and then a third gear, full throttle pull, passing 6,000 RPM.
The test will be done with the scoop opening covered, as shown in picture 1 above, and then with the scoop opening uncovered.
The temperature at the air inlet and pre-turbo will be evaluated for changes with and without the scoop cover in place. The pressure differential across the air intake will also be compared for the two test cases.
Shown in the next chart is 200 seconds of steady driving with the third gear pull taking place about 2/3 of the way across the timeline. Temperature entering the air intake is approximately 80.5 degF which is one and a half above ambient until 20 seconds in when the ambient reading drops to 77 degF.
Temperature at the turbo inlet is approximately 10 degF higher then at the air system inlet.
Looking at the third gear pull the pressure differential maxes out around 1.2 v. The air temperature entering the air intake is unchanged throughout the pull.
During the third gear pull the inlet air temperature decreases approximately 1 degF until the middle of the pull, after which it climbs back up to the initial temperature.
The pressure differential maxes out during the pull at approximately 1.2 v.
Temperature at the air intake inlet is nearly identical for the covered and uncovered tests.
The pressure differential through the intake during the third gear pull reaches a maximum value of 1.2 volts in both the covered and uncovered tests.
There is no indication from this test that the air scoop has any affect on the air temperature entering the intake, or the pressure differential across the intake.