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Go Back   IWSTI.com: Subaru STI Forums > STi Technical Discussion > ECU Tuning & Performance Electronics > Cobb Street Tuner


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Old 04-06-2007, 11:27 AM   #1
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Default Cobb Stage 2 OTS map issue...

I noticed in the basic Cobb Stage 2 OTS map that several partial throttle values in the WGDC Low table are higher than the corresponding values in the WGDC High table. Is there a reason for this, because everything I've learned thus far suggests this should not be the case. For example, the 3200rpm/60% throttle cell in the WGDC Low table contains 52% while the 3200 rpm/60% throttle cell in the WGDC High table contains only 39%. This is also the case for several surrounding cells. Are these mistakes, or is there a good reason for this method? I'm wondering how this is affecting my partial throttle driveability since my own StreetTuner map uses the Cobb Stage 2 OTS boost map and WGDC for partial throttle (I only did WOT adjustments in the 80% throttle column).

What do you guys think?


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Old 04-06-2007, 02:34 PM   #2
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Default

That is a way to lock down the WG solenoid for instant response type boost. It should default to the low table and since it is higher than the high table it will hold and stay at the low wgdc value. This can be done with portions of the map which you can pin point WG and Boost figures or if they were set the same values that would theoretically lock the solenoid as well which can be done on the lower rpm high throttle portions of the map to aid in spool up. But one must be careful not to do it too far as then you will overshoot your boost target there after. I would suggest rescaling the rpm range in the boost tables to get a better resolution of the tuning of boost.


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