Pressure transducers and Charge Temp

[Joel A. Robinson]

I'm wondering if any of you know a source of some inexpensive low 
pressure range transducers for the purpose of finding low/high pressure 
zones on my car's exterior.  Engineers use small, high precision load-cells 
when doing material tests, etc but these are expensive and the pressure 
range is way beyond what I need.

I don't even need actual numbers, if there was a way to hook them to a 
multitestor and just measure relative voltages, that would be fine.

The reason I'm curious about the pressure is that I'm trying to find an 
appropriate place to draw fresh air for my airbox and also a place to 
vent heated air from the intercooler.

I would also like to get measurement of my charge temperature in various 
places:  at the airbox, just before the turbo, after the turbo, before 
the intercooler, after the intercooler and just before the throttle 
body.  I may decide to permanently mount a guage in one place but right 
now I would just like to monitor my progress when adding thermo 
barriers/shields, etc.


Thanks for your help!

Joel Robinson
robinj at src.usbm.gov