Sale ends todayGet 30% off any course (excluding packages)
Ends in --- --- ---
Forum Posts
Courses
Blog
Tech Articles
why is maximum map pressure of 15 psi introduced in the dyno data when the target is map 200 kpa?
15 psi is 103 kpa not 200 kpa
I can’t understand
Thank you
I accidentally hit the button to report
VEEEERY roughly :)
200kpa on map pressure is "absolute" - its including the vacuum which starts at 0kpa - 100kpa
0kpa of map pressure = full vacuum
100kpa of map pressure = atmospheric 0psi
200kpa of map pressure = 15psi of boost
100kpa gauge pressure is 100kpa of boost above the atmospheric mark of "0kpa"
-100kpa of gauge pressure is full vacuum
0kpa of gauge pressure = atmospheric 0psi
100kpa of gauge pressure = 15psi of boost
some ecu's work in map pressure - some ecu's work in gauge pressure - some let you choose what axis you want depending on what table your working on.
that means that there is no positive boost pressure on the Dyno
