3 bar map

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explorergotoluvit

New member
Is the 3 bar worth the money?

How much psi is gained from it on a lms tuner with out a custom tune

Since im asking questions how much boost does the explorer hit on 2 bar? with the tuner?

I have 26,000 miles would you guys change the plugs if your not having any problems?

On my suby how we rated boost was 1 psi was close to 10 hp so if i added 3 pounds of boost it would add about 30 hp +- couple hp does anyone know if thats case with the 3.5L?
 
The 2BAR MAP tuner cannot sense (or communicate to the ECU) any boost above 14.5 psi.  The 3BAR can up to about 20-23psi. The tune must contain a mod for the 3BAR... All major tuners can add this.  There are occasions and sometime spikes of boost up to 16-17psi with stock turbos.  Also custom tunes may command higher boost levels than stock tuning.  So there is an advantage.  Most of the time it merely allows smoother performance due to more incremental readings.I bought one...personal choice
 
Not trying to jack this thread as I think this will help the OP and myself at the same time.

Where is the cheapest place to reliably pick up a 3 bar sensors these days?
 
SRT82ECOBOOST said:
Not trying to jack this thread as I think this will help the OP and myself at the same time.

Where is the cheapest place to reliably pick up a 3 bar sensors these days?
Click to expand...

Rock Auto
 
BiGMaC said:
The 2BAR MAP tuner cannot sense (or communicate to the ECU) any boost above 14.5 psi.  The 3BAR can up to about 20-23psi. The tune must contain a mod for the 3BAR... All major tuners can add this.  There are occasions and sometime spikes of boost up to 16-17psi with stock turbos.  Also custom tunes may command higher boost levels than stock tuning.  So there is an advantage.  Most of the time it merely allows smoother performance due to more incremental readings.I bought one...personal choice
Click to expand...
So you installed yours untuned?
 
I would be willing to try this as it is cheap and easy to have LMS reprogram it but I am struggling a little bit with the fact that my tune never makes over 12 -13 PSI...I don't get spikes above 14 or 15.  Maybe they allow for boost to get that high with the 3 bar in the tune?  That said previously I thought the only way to run that much boost safely was with Meth...maybe that's changed.

I also have to say I'm not quite following the logic on it allowing "more granularity".  Sensors on cars operate on voltages 0-5 or 0-12 etc...that get mapped to values that represent something.  i.e. 5 volts is 14.7 psi.  If you install a 3 bar map the computer still only knows 0-5 volts but now that needs to represent -14.7 to +29 PSI or so in a 3 bar map.  You've actually got LESS granularity for every voltage level...there might be something else it is doing with the ECU or the tables I suppose. 

Has anyone tested a 3 Bar at the track (without Meth) and seen any gains?
 
I believe the two bar is measuring both boost and vacuum...so -14.7 to +14.7 PSI...If you want to go above 14.7 you need to get a 3 bar.
 
ecoboostsho said:
I believe the two bar is measuring both boost and vacuum...so -14.7 to +14.7 PSI...If you want to go above 14.7 you need to get a 3 bar.
Click to expand...
Ah...makes perfect sense.

Thanks!
 
FoMoCoSHO said:
ecoboostsho said:
I believe the two bar is measuring both boost and vacuum...so -14.7 to +14.7 PSI...If you want to go above 14.7 you need to get a 3 bar.
Click to expand...
Ah...makes perfect sense.

Thanks!
Click to expand...

Not entirely correct.  When on the BAR scale, the atmospheric pressure (just regular ole air that we breathe when we step outside is 1 BAR (14.5 psi)), Therefore our 2-BAR sensor measures 1 BAR of boost over atmospheric pressure (14.5 psi of Boost) so by going to the 3 BAR the sensor can measure 2 BAR over atmospheric (29 psi of boost)
 
Fa-SHO said:
FoMoCoSHO said:
ecoboostsho said:
I believe the two bar is measuring both boost and vacuum...so -14.7 to +14.7 PSI...If you want to go above 14.7 you need to get a 3 bar.
Click to expand...
Ah...makes perfect sense.

Thanks!
Click to expand...

Not entirely correct.  When on the BAR scale, the atmospheric pressure (just regular ole air that we breathe when we step outside is 1 BAR (14.5 psi)), Therefore our 2-BAR sensor measures 1 BAR of boost over atmospheric pressure (14.5 psi of Boost) so by going to the 3 BAR the sensor can measure 2 BAR over atmospheric (29 psi of boost)
Click to expand...


Very good info ....
Now I want a 4bar Map ... and someone to make ALL the other big pony parts ..... trany , ptu , and the list goes on .
 
explorergotoluvit said:
spark plugs should i replace them?  starting to learn a lot about the ecoboost in this forum thanks to you all
Click to expand...

Since you have a 13 it should have Motorcraft  SP534 installed , at the very least check the gap and set them at .030 or you could use NGK iridium or Denso plugs . I use the NGK .
 
SwampRat said:
explorergotoluvit said:
spark plugs should i replace them?  starting to learn a lot about the ecoboost in this forum thanks to you all
Click to expand...

Since you have a 13 it should have Motorcraft  SP534 installed , at the very least check the gap and set them at .030 or you could use NGK iridium or Denso plugs . I use the NGK .
Click to expand...
I have an early model 2013.  The updated plugs and .030 gap was not in mine.  Must do thing.  ;)
 
I have a 2013 pp the manuel says mcsp528,i guess they were revised to sp534 which is the same part#,i purchased both for comparison.
 
Needmoreboost said:
Just for clarification the sp534 motorcraft plug is made by NGK.  3.99 versus 12.99  :0
Click to expand...

Made by NGK  .. but not the same plug . I paid around $8.00 each with shipping .
 
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