Omni 4bar readings Vs Boost guage readings.
#1
Evolved Member
Thread Starter
Omni 4bar readings Vs Boost guage readings.
Just installed omni 4 bar. Doing some logging at idle. Its reading -8.5 ish but my boost guage reads -15 at idle.
This is for rom 96530706.
Do you need to change formulas? Or is this accurate info?
I read on here for my rom just input the formula into evoscan and it just works.
This is for rom 96530706.
Do you need to change formulas? Or is this accurate info?
I read on here for my rom just input the formula into evoscan and it just works.
#2
Evolved Member
iTrader: (4)
Clarify please? Manufacturer of your boost gauge? I am assuming your utilizing PSI calcs? You need to edit the equation in evoscan to represent your ambient PSI.
My gauge reads 12 vacuum at idle, and my evoscan registers -4 ish. During a pull it registers boost correctly within very close reason to gauge vs. evoscan.
My gauge reads 12 vacuum at idle, and my evoscan registers -4 ish. During a pull it registers boost correctly within very close reason to gauge vs. evoscan.
The following users liked this post:
4b11slayer (Sep 29, 2016)
#3
Evolved Member
Thread Starter
Clarify please? Manufacturer of your boost gauge? I am assuming your utilizing PSI calcs? You need to edit the equation in evoscan to represent your ambient PSI.
My gauge reads 12 vacuum at idle, and my evoscan registers -4 ish. During a pull it registers boost correctly within very close reason to gauge vs. evoscan.
My gauge reads 12 vacuum at idle, and my evoscan registers -4 ish. During a pull it registers boost correctly within very close reason to gauge vs. evoscan.
Its a mechanical 30 psi autometer guage. I have cams so i am seeing -15 inches of vac on my mechanical guage. Just installed omni 4 bar to log boost.
Evo scan 2.9.
Logging Omni 4 bar in evoscan. Request 38- Function 0.2369*x-14.7 Units psig.
I havent compared boost readings but right off the bat im only seeing about -8.x inches of vac via evo scan and omni 4 bar.
#4
Evolving Member
I assume that you are confused by the readings you see.
The Gauge reads : -30 inHg --- 0 inHg/Psi --- 30 Psi
-15 inHg equals about -7.5 Psi at sea level.. so different scale..
Evoscan read only PSI
0 PSI = 0 inHg
-7.5 = -15 inHg
-15 PSI = -30 inHG
you get it....
The Gauge reads : -30 inHg --- 0 inHg/Psi --- 30 Psi
-15 inHg equals about -7.5 Psi at sea level.. so different scale..
Evoscan read only PSI
0 PSI = 0 inHg
-7.5 = -15 inHg
-15 PSI = -30 inHG
you get it....
The following users liked this post:
4b11slayer (Sep 30, 2016)
#5
Evolved Member
Thread Starter
Ahhhh i see now... Thanks Germ
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