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-   -   I Need to know how to scale Omnipower 4 bar in Kpa (https://www.evolutionm.net/forums/ecu-flash/554165-i-need-know-how-scale-omnipower-4-bar-kpa.html)

poncho8667 May 4, 2011 10:24 AM

I Need to know how to scale Omnipower 4 bar in Kpa
 
Hey guys,

I have looked and just cant seem to find out how to make the omnipower 4 bar map read Kpa in evoscan. I'm sure I have missed it somewhere along the lines, but It would be great if someone could point me in the right direction!

Thanks in advance!
Ben

95630706 May 4, 2011 01:45 PM

change the formula to 1.667*x-43.75 for KPA instead of PSI. :)

Acree May 5, 2011 12:03 AM

This is why I love these forums. Plenty of helpful people.

-Acree

poncho8667 May 5, 2011 10:17 AM


Originally Posted by 95630706 (Post 9293503)
change the formula to 1.667*x-43.75 for KPA instead of PSI. :)


OK, so I did this and it is off a bit. Is it maybe due to me being in a higher elevation?

Thanks in advance,
Ben

RoadSpike May 5, 2011 10:22 AM


Originally Posted by poncho8667 (Post 9295925)
OK, so I did this and it is off a bit. Is it maybe due to me being in a higher elevation?

Thanks in advance,
Ben

How is it off?

Are you checking this against your barometer?

poncho8667 May 8, 2011 08:21 AM

With key on engine off its reading about 53.x kpa and I figured it would be closer to 100. Maybe I'm just thinking of it wrong.

Thanks in advance,
Ben

poncho8667 May 8, 2011 08:23 AM

Barometer shows 98..

RoadSpike May 8, 2011 01:17 PM


Originally Posted by poncho8667 (Post 9302467)
With key on engine off its reading about 53.x kpa and I figured it would be closer to 100. Maybe I'm just thinking of it wrong.

Thanks in advance,
Ben

That is pretty far off.

Pulled up my scaling chart and I realize that the equation posted is way off..


Try this.

KPA = 1.5686 * x

todd6027 May 9, 2011 02:28 AM

for kpa omni 4 bar x*1.6334

evo420 Aug 26, 2013 06:25 AM

is this the correct formula? also is possable to log kpa and psi from one sensor?

Raptord Aug 26, 2013 07:03 AM


Originally Posted by evo420 (Post 10934907)
is this the correct formula? also is possable to log kpa and psi from one sensor?

You could just add a column to your log in Excel and convert from the unit you logged to the other one you want.

Broke4speed Aug 26, 2013 07:38 AM

I just click both KPA and PSI options in the Evoscan listing. Evoscan doesn't care how many displays it outputs off a single MUT request.

I've got KPA and PSI off a single MAP sensor on my car, works great.

evo420 Aug 26, 2013 09:36 PM

now im even more cornfused. what exactly do i enter into the
logreference:
requestid:
eval:

?
thanks


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