edit: if the area *to be Tested* is in view , like on a hood simple yarn strips there could give you an idea of whats happening with the air flow
on my *TO DO * list is the fabrication of a u tube
to remotely measure pressures around the auto. My induction is modified to supply air to engine from what i *presume* to be a high pressure area on the chin fin[forward fairing] Intuitively it is a high pressure area , but not measured .one wonders at a road speed of 60 MPH what the measured pressure would be.
i would like to measure the pressure at the convergent section of the fairing duct , in the pipe that goes to the air box , in the air box before the filter , and after the filter , finally at the convergent section of the carb throat before the throttle plate .
i measure manifold pressure[vacuum gauge ] in INHG [inches of mercury]
the theoretical value 60 MPH is .043 PSI or 1.19 INH2O or 30.2 MMH2O
using this tool for 88fps with an air density of 59oF - 0.0765 lbm/ft3
Dynamic Pressure
humm .043 PSI or 1.19 INH2O or 30.2 MMH2O
i wish i could just go to a tool room and check out a good digital manometer, the one i looked at cost @ $400
Inch of water - Wikipedia, the free encyclopedia
1 inAq = .036126 psi, or 27.68089 inAq = 1 psi.
1 inH2O = 248.84 pascals (60 °F)[2]
= 2.4884 mbar or hectopascals (60 °F)
≈ 2.54 cmH2O (4 °C)
≈ 0.0024558598569 atm
≈ 1.86645349124 torr or mmHg (0 °C)
≈ 0.0734824209149 inHg (0 °C)
≈ 0.0360911906567 PSI