when 12psi turns into 14psi?
#1
when 12psi turns into 14psi?
The reason I ask this is because im currently in salt lake city, about 4400 ft above sea level
kPa is currently 86 compared to North Carolina's 100
I have set my boost controller for 182 kPa and that was supposed to be 12 psi at sea level
I have not thought too much about it and it is running fine, but then I set up a new guage in Tuner Studio to show boost, and saw that it was reading 14 psi, thats when it hit me, 100 kPa is about 14psi, and current airpressure here is 86kPa, just about 100kPa difference to what i was tuning for
Is this something i need to think to much into? or is my 14psi at this altitude going to be the same as 12 psi at sea level next time i am there?
or do i need to just ignore this psi stuff since its different depending on where i am, and only focus on kPa?
kPa is currently 86 compared to North Carolina's 100
I have set my boost controller for 182 kPa and that was supposed to be 12 psi at sea level
I have not thought too much about it and it is running fine, but then I set up a new guage in Tuner Studio to show boost, and saw that it was reading 14 psi, thats when it hit me, 100 kPa is about 14psi, and current airpressure here is 86kPa, just about 100kPa difference to what i was tuning for
Is this something i need to think to much into? or is my 14psi at this altitude going to be the same as 12 psi at sea level next time i am there?
or do i need to just ignore this psi stuff since its different depending on where i am, and only focus on kPa?
#3
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Perfect example of how truly arbitrary "boost" is as a measurement. I don't think you have anything at all to worry about - your ECU is still seeing 182kpa, even though your turbo is working a bit harder to get there.
What I want to know is how you managed to make a Megasquirt's closed loop boost controller work.
What I want to know is how you managed to make a Megasquirt's closed loop boost controller work.
#7
you should be fine just dont stay at max boost for 10-30 mins at a time. Unless your setup was borderline before you should have nothing to worry about.
What I want to know is how you managed to make a Megasquirt's closed loop boost controller work.
My "boost kpa target 1" table i had set to what kPa i was lookign for but minus 10, so i have the top row set to 170, but it will go no higher then 180.
They are from top to bottom:
170, 149, 130, 68, 50, 20
when i had it set for 200 kpa, it was
190, 170, 149, 101, 41, 0
on both the first four lower RPM cells were set to 0, since im usually less then 20% thottle when crusing, i did not want the boost controller doing anything if i am driving for hours
im sure that several of those rows are well below where the wastegate will accuate, so im not sure if it is doing anything in those cells, i spent very little time setting it up, i just set the numbers and have had it that way since
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