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how-to: ECU-based direct boost control

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Old Dec 6, 2009, 04:01 PM
  #931  
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<table name="Variable for Boost Control" category="BOOST CONTROL" address="408B2" type="1D" level="1" scaling="Hex16"/>
<table name="WGDC Correction update delay #1" category="BOOST CONTROL" address="1654" type="1D" level="1" scaling="uint16"/>
<table name="WGDC Correction update delay #2" category="BOOST CONTROL" address="1656" type="1D" level="1" scaling="uint16"/>
<table name="Load Error RAM Address" category="BOOST CONTROL" address="408A6" type="1D" level="1" scaling="Hex16"/>
<table name="Load Error RAM Address in Load Error Table" category="BOOST CONTROL" address="735C" type="1D" level="1" scaling="Hex16"/>
<table name="MUT8A" category="BOOST CONTROL" address="37A22" type="1D" level="2" scaling="Hex16"/>
<table name="MUT8B" category="BOOST CONTROL" address="37A26" type="1D" level="2" scaling="Hex16"/>


<table name="SHLR->SHLL for EBC" category="Turbo" address="?????" type="1D" level="1" scaling="Hex16"/>

<table name="Boost Error RAM Address" category="Turbo" address="41E06" type="1D" level="1" scaling="Hex16"/>
<table name="Boost Error RAM Address in Load Error Table" category="Turbo" address="7254" type="1D" level="1" scaling="Hex16"/>
<table name="Boost Error Correction" category="Turbo" address="3f44" type="2D" level="1" scaling="OffsetWGDC">
<table name="Boost Error" elements="17" type="Y Axis" address="7360" elements="17" scaling="BoostErrorPsi"/>
</table>
<table name="Boost Adder" category="Turbo" address="1670" type="1D" level="1" scaling="psia16"/>
<table name="Base Boost #1 (High Gear Range)" category="Turbo" address="3fa4" type="2D" level="1" scaling="psia8">
<table name="RPM" address="7336" elements="16" type="Y Axis" scaling="RPM"/>
</table>
<table name="Base Boost #3 (Low Gear Range)" category="Turbo" address="3fd6" type="2D" level="1" scaling="psia8">
<table name="RPM" address="7336" elements="16" type="Y Axis" scaling="RPM"/>
</table>


Mrfred when you will find time can you please look also for the address for SHLR->SHLL for EBC at 88840017/16?

I think the rest of the definitions are correct and I just need the SHLR address for PSI direct boost control.

Thanks in advance

Last edited by Danieln; Dec 6, 2009 at 04:09 PM. Reason: change some wrong addreses
Old Dec 11, 2009, 04:27 AM
  #932  
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So if I use Omni 4-bar sensor and want to log "Boost Error" at the evoscan, should I change the "Eval" part to "0.02955*x-3.7825" rather than "0.0241*x-3.087", which is for JDM 3-bar sensor?
Old Feb 5, 2010, 12:35 AM
  #933  
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Just curious if most of you have Map Averaging enabled or not?

Thanks
Old Mar 14, 2010, 02:56 PM
  #934  
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What exactly does BCS Re/De Activation RPM do? I tried searching for an answer but, didn't come up with anything. I'm trying to trouble shoot 9653 v7 direct boost control and wanted to better understand what this does. Thanks
Old Mar 15, 2010, 07:08 AM
  #935  
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WGDC goes to 100% when the bcs is not "active". So the RPM hits x and it deactivates the BCS. The RPMS drop below say 2100 and is off (100%) the rpms come up again to 2200 and it goes back on.

Reactiviate is low RPM threshold on and off.

Decativate is high RPM threshold on and off.

This is why it is important to set the deactivate values to above your rev limit. Mine is at 8500. Otherwise your WGDC is 100%. Bad things could happen at the top of the rev range...

Last edited by chmodlf; Mar 15, 2010 at 07:17 AM.
Old Apr 10, 2010, 06:06 AM
  #936  
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Has anyone worked out the scalings for the 3.5 bar Zeitronix/Kavlico sensor?

Last edited by EVO8LTW; Apr 10, 2010 at 09:42 AM.
Old Apr 14, 2010, 11:16 AM
  #937  
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4 bar overkill

Sorry if I didn't do this right. I'm new to this.

Is a 4 bar map sensor overkill for 23 to 24 pounds of boost on an evo 9. If it is where can I get the jdm 3 bar.
Old Apr 14, 2010, 11:32 AM
  #938  
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Originally Posted by 304MR
Sorry if I didn't do this right. I'm new to this.

Is a 4 bar map sensor overkill for 23 to 24 pounds of boost on an evo 9. If it is where can I get the jdm 3 bar.
just get the 4 bar.......its not overkill
Old Apr 14, 2010, 12:12 PM
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Thanks, i'll just get the omni 4 bar.
Old May 3, 2010, 08:24 AM
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Old May 4, 2010, 05:52 PM
  #941  
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Originally Posted by nonschlont
Another thing, re-scale your rpm axis for your boost tables(WGDC/BaselineBoost), to get better resolution/control where you need it. 500/2000/2500/3000/3500/3750/4000/4250/4500/4750/5000/5500/6000/6500/7000/7500, or however you like. Since you have 100% duty cycle till 2500, you could better utilize the 1000/1500/2250/2750 cells. You will have more control over the meaty part of the powerband, rather than spool up.
Originally Posted by nonschlont
Note: This is only for the "baseline boost / WGDC tables", if you were to do this w/ the timing and fuel maps, it will throw off your tune.

all you need to do is click "=/+ button, it will pop up w/ a lil screen, you input what ever value you want, then click enter.
Originally Posted by fostytou
You just enter the values you want in the left side of the table. Be aware that another function that you can't see *could* be accessing this table of RPM values and might then be thrown off.
Can someone confirm that the RPM scale is only used for boost control? I did a quick search of the ECUFlash XML for the address and found the following:

"Base Wastegate" (Main and Alt)
"Boost Desired Load" (Main and Alt)
"Boost Desired PSI" (Main and Alt)
"Min Load for Boost Control"

"Accel Enrichment (Incorrect)" This seemed odd.

<table name="Accel Enrichment (Incorrect)" category="Global Fuel Settings" address="3864" type="2D" scaling="EnrichmentAdj">
<table name="RPM" address="6982" type="Y Axis" elements="15" scaling="RPM"/>
</table>
Old Aug 22, 2010, 08:49 PM
  #942  
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Is this only for stock EBCS or does this work with others, eg. the grimmspeed 3-port?
Old Aug 23, 2010, 05:40 AM
  #943  
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Originally Posted by jtyler
Is this only for stock EBCS or does this work with others, eg. the grimmspeed 3-port?
Any 3-port provided that the circuit resistance is reasonable. The GM and Grimmspeed 3-ports are the best.
Old Aug 23, 2010, 05:52 AM
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Has anyone tried out the new design Perrin 3 port?
Old Aug 23, 2010, 06:18 AM
  #945  
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Originally Posted by shadow1
Has anyone tried out the new design Perrin 3 port?
Send me one and I'll try it out. :-)


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