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cx2231 transfer function

Started by jbeez, November 23, 2017, 08:06:31 AM

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jbeez

Anyone have a table representing the boost readings on a motorcraft cx2231 3bar map and the output voltages?

Still figuring out that meth stuff.

Thank

P.s. I did find this online, might be a universal thing?

http://injector-rehab.com/shop/mapsensor.html



Sent from my Nexus 6P using Tapatalk
2014 PP SHO Darkside Metallic
K&N Panel filter, 3bar map, AJPTurbo tune, Motorcraft SP542 @.28, MSD Coils, PPE Catted downpipes, EBP Hot pipes w/ tial BOV, Tracy Lewis catch can, 170 tstat, 93 octane pump gas

ZSHO

#1
There is a chart for comparison but need to find it.
P. 157+ for now. Z
http://www.fordservicecontent.com/ford_content/catalog/motorcraft/OBDSM1505.pdf


2013 Performance Package SHO| Livernois Custom Methanol Tune|3-Bar Map|Reische-170-Stat|Full Race Tial-10psi BOV in Black|PPE-Gloss Black Hot Pipes|EPP Dual Intake in Gloss Black|PPE Catted DP|Corsa Sport Cat Back Exhaust|H&R Sport-Springs|CFM Performance Billet Valve Cover Breather In Gloss Black|Llumar 20%Ceramic window Tint|MSD Ignition Coils in Black|Extreme Roof Spoiler|Redline Fluids all around|Gearhead Intercooler|First-SHO With Direct Port Alky-VP-M1-100%-Methanol Injection|LMS-Custom-Dyno-Tuned @ 415whp-465wtq| Best Trap Speed of 115.54 mph|

AJP turbo

#2
Here you go.

SCT Dealer/Custom Calibrator                        
Specializing in 3.5 Ecoboost   
Remote/email custom tuning including E85 blends 
Authorized retailer for all SCT devices. 
 
Former:2014 PP SHO
3 bar 93 tune, Airaid, Stainless Works non catted DP's  
405whp/520tq
Dyno
     
Current:2016 F150 2.7 Ecoboost
Tuning in progress

jbeez

Thanks guys, I took the data there and wrote a little bash script that takes boost input(psig) and spits out kPa and the voltage the ford 3bar map would read.

I called the file 3barmap.sh,  this can probably be replicated in a spreadsheet function or whatever. I might add additional functionality like converting from kPa or showing what boost numbers are at a specific voltage.

How do you know what voltage you have alkycontrol PAC set to with the potentiometers? It seems like .1v corresponds to about 1psig of boost, that's pretty precise IMO. I feel like this can make the setting for each person vary greatly depending on how long their wire run is and the resistance associated with it, causing voltage drop. Hell, AWG of the wire, quality of the splice, and even heat can play into that.

#!/bin/bash
#Quick Convert Gauge Boost to kPa and voltage output from Ford Motorcraft CX2231 3 bar MAP Sensor.
#J.Bright 11-26-2017

if [ -z "$1" ];
then read -p "Enter boost PSIG start target:" boost;
else boost=$1;
fi;
kPa=$(echo \($boost+14.69595\)\*\(6.8947625\) | bc)
Vout=$(echo 0.0146428\*$kPa+0.1072 | bc)

echo Boost: $boost psig
echo kPa:   $kPa
echo Vout:  $Vout Volts
2014 PP SHO Darkside Metallic
K&N Panel filter, 3bar map, AJPTurbo tune, Motorcraft SP542 @.28, MSD Coils, PPE Catted downpipes, EBP Hot pipes w/ tial BOV, Tracy Lewis catch can, 170 tstat, 93 octane pump gas