Metric to Imperial Gauge Conversion Charts

[Mr. Moose]

I got tired of trying to do these in my head while driving, so here are three charts that convert metric guages (like some Defi BFs, for example) to the more common psi and fahrenheit numbers.

The metric gauge readings are in red, with corresponding imperial conversions. The blue lines are common imperial readings (200, 300, 400 Degrees F, or boost in lbs, or oil pressure in psi so you can translate them to guage readings if you like. Hope its useful.

[dsm_gsx97]

I believe your Boost kPa to PSI is absolute pressure and not gauge pressure which is what you'd be using right? I'm still learning the metric stuff so bare with me. Before this would have confused me until I read some other things recently dealing with the AEM EMS. But from what I understand it's like this... (from AEM EFI Basics v1.3.pdf (http://forum.aempower.com/forum/index.php?action=dlattach;topic=14527.0;id=2888) pg 19-21)


Absolute Pressure
<---------------------------|------------------------------>
0psi 14.7psi 29.4psi
(0 kpa) (100 kpa) (200 kpa)

Gauge Pressure
<---------------------------|------------------------------>
-14.7psi 0psi 14.7psi
(0 kpa) (100 kpa) (200 kpa)



That graph was from page 20. They have a conversion chart on pg 21 also that wouldn't copy nicely. You might have to create a log in to use that link since it's the EMS forum.

Sorry, I'm just making sure I understand this also. I thought only a MAP sensor is the only thing using kpa in absolute pressure and we'd be using/viewing it as gauge pressure. Right?