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#153: 05-15-2014, 10:32 PM
Timing Compensation Zeroing
covertrussian's Avatar
Title: MPG Tuner
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Location: VA
Car: '05 LGT, '12 OBP, '00 G20+T
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Good Samaritan Max Capacity pointed me towards another flaw in the stock Legacy Tune. 05-06 Legacy's add 2* to Cylinders 2 and 4 which starts being a real big issue once you start increasing the power. Subaru saw this as an issue and zeroed out the tables stock on 07+ Legacy's.

As you can see stock tune adds 2.11* starting at 3600rpm.

Fix is simple, just zero it all out!

I wanted to do test and see if any power was lost due to less timing. I did two side by side runs on the same stretch of road. To avoid inconsistencies with self learning I set IAM to 1.0 as the default and did the run right after flashing the tune.

As always take these tests with a grain of salt, I was surprised that I didn't loose any power, even more surprised it gained anything.
05 LGT 16G 14psi - 260whp/30mpg
12 OBP Stock - 120whp/31mpg
00 G20t - GT28r 10psi - 250whp/36mpg

Last edited by covertrussian; 10-31-2016 at 08:40 AM..
The Following User Says Thank You to covertrussian For This Useful Post:
FJuan (05-16-2014)