BackgroundThis tune was originally made for the XO2 Racing FMIC kit for the Subaru Legacy GT. See thread here for details
http://www.legacygt.com/forums/showthread.php?t=74489. This tune is based on a 2006 LGT 5MT. It has also been tested on a 2005 LGT 5MT. You will need to copy the tables to your stock rom using enginuity. Unfortunately, the FMIC kit has fitment issues but it does appear to perform well.
For 3D tables, select the entire table and paste.
For 2D tables, be aware that the first row is offset by one cell. Make sure you select the entire table and paste into enginuity.For 2005 stock roms later than version 521 and for all 2006 stock roms, there is a WGDC time delay that needs to be addressed to get full boost. Make sure that you have the ROM Defs later than September 8, 2008. Activate WGDC fix.
Requirements:Must use enginuity defs from Setpember 8, 2008 or later.
Must have XO2 Racing FMIC or equivalent FMIC.
Must have full turboback. This tune is set up for catless downpipe. Catted downpipe may need to be tweaked slightly.
Must have catless uppipe.
K&N Intake highly recommended. Any other intake will need to have the MAF scale completely retuned. SPT intake is NOT allowed with this tune due to massive MAF oscillations at high boost and low rpm.
Must have WBO2. All intakes have some variations so you will need to adjust the MAF scale accordingly.
BOV/BPV - stock or fully recirculating BOV highly recommended. This tune has been used with Greddy Type S and TurboXS H34 BPV.
All other hardware must be stock (oem 2 port bcs, oem restrictor pill, oem actuator, oem injectors, etc...).
Notes:This tune was done between 45F and 70F. Boost control outside this temperature range may need slight adjustements to WGDC by IAT table. Not a big deal. Just do a log in 3rd gear from 2000 to 4000 rpm at various temperatures and adjust table as required.
This tune was done at sealevel. No adjustments were made for higher altitude. It should still work, but be prepared to make adjustments to the WGDC by atmospheric pressure table.
The AFR table was set up for ACN 91 octane winter blend gasoline. It is fairly conservative considering that the tune is for FMIC equipped car. Feel free to lean out the AFR table using your WBO2 if you are comfortable with a leaner mixture for your type of fuel.
Boost control was setup for all gears. One of the earlier iterations was logged in 5th gear starting from 2000 rpm. Boost control was smooth and leveled off smoothly at target boost. However, the MAFv and MAFg oscillated at 2700 rpm due to really high load and low rpm. The oscillation is very localized at 2700 rpm. The MAFg oscillated from 100 g/s to 150 g/s to 100 g/s to 150 g/s. I attribute this air surging to the short ram design and the deletion of the Helmholz resonator.
The air surging can cause some minor knock at 2700 rpm. I do not recommend driving at WOT in 5th gear between 2000 and 2500 rpm for more than 1 second. You should downshift. Driving at WOT in 5th gear above 2500 rpm is not a problem. If you start your run at 2500 rpm, the engine will be past 2700 rpm by the time the boost is high enough to cause any problems.
Due to slight mechanical differences from one car or another, you will most likely need to tweak the WGDC and/or timing. when adjusting initial and max WGDC, make sure that the difference between the max WGDC and initial WGDC is constant or monotonically decreasing as rpm increases.
Here are some boost profiles of this tune on a 2006 catless 5MT.
REVISION 03: The tip-in table was from the previous DEFS. This tip-in table was meant to try to adjust for the larger volume of the FMIC but it didn't work that well. The delta pressure doesn't really change across the throttle. It's the volume that changes so duration change is necessary. When the next romraider defs come out, I'll see if this can be improved.
