Simple MAP sensor question

[EFFalcon]

i may have missing this info somewhere and i just wanted some clarification.
in regards to the tuning software, i assume the @ idle the MAP sensor value should be around 0kpa?
@ WOT it goes to 100kpa (roughly) and finally on boost in access of 100kpa (1bar = 200kpa?)

[MartinM]

0 Kpa is a perfect vacuum, so unlikely to be obtained in a manifold

Mine never goes below about 50 Kpa at idle/small throttle

WOT is around 100 Kpa ie close to atmospheric

On boost then in excess of 100 Kpa, but your last bracket is not correct - 1 bar is equivalent to 100 Kpa

See http://www.chromatography.co.uk/Techniq ... essure.htm

[EFFalcon]

yeah, i just wanted to get my head around the direction of the map sensor calibration, mine jumps all over place even at idle

so essentially, i'd be lookin at tuning between 40kpa and 100kpa to start with, and then when running 7 psi, i'd goto 150kpa? (+/-)

www.effalcon.com

[MartinM]

...that should do nicely, as long as the MAP sensor can cope with such a range of pressures