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The factory version of this map can loosely be translated as 'exhaust flow vs. boost'. While it's not necessarily 1:1, exhaust flow will increase along with RPM. The factory curve of the table reflects this. Boost pressure is along the top, while the exhaust flow is along the side. An easy way to think of it is if you want to maintain the boost value in X, and the exhaust matches the flow on the Y, Z is how far opened the wastegate should be. Or - as exhaust flow increases, the wastegate should open more to account for that.Negative values will keep the wastegate closed, positive values will open the wastegate by that percentage. This is difficult to tune for because there's no way (today) to log the exhaust flow factory (y values). There's a lot of trial and error involved. You can estimate your exhaust flow factor by finding the boost value and the boost actuator target setpoint, and then locating that cell in table.TBD
→Factory file
==== Factory file ====
[[File:is20_wgdc.png|500px]]
==== Boss/Big turbo version ====
