Drill_Sergeant

iTrader: (21)

to anyone who can help:

I see settings for JDM/EVO X MAP sensors and also for Omni 4 bar.

Which of these am I SUPPOSED to use for the Omni 3 bar? I'm currently using the Omni 4 bar settings with the Omni 3 bar evoscan formula which as of now is giving me pretty good results.

Just double checking and making sure I am using the correct settings.

I saw someone asked this same question in the JDM MAP thread but no one replied.

lan_evo_mr9

iTrader: (10)

Are you just logging boost or trying to run ECU Direct boost control or maybe SD?

Drill_Sergeant

iTrader: (21)

ecu direct boost with grimmspeed 3 port

JohnBradley

iTrader: (30)

On the scaling you need to make a graph comparing voltage values from the 4 bar, 3 bar, and JDM 3 bar and see where they all overlay.

I will be doing a right up on the proper voltage scaling for most of the sensors (other than the JDM 3 bar and Omni4) here shortly. In the meantime you should be able to use the JDM 3 bar voltage scaling and be pretty close.

Ceddy

The Omni 3BAR matches the GM 3BAR with in 1-2%.


GM 3BAR:

EvoScan:
PSIG -> (x*0.17886) + 0.161 - 14.5
kPa -> ((5.0*x/255) + 0.01765)/0.01591

EcuFlash:
To Display -> x*0.31
To ROM -> x/0.31
(Not sure if Direct Boost uses 10-bit ADC scaling like SD or not)

Drill_Sergeant

iTrader: (21)

thank you JB and Ceddy