It looks like there is room to fit a traditional wastegate with a basic screamer to perform a test.
You just don't see people using these straight gates on mass still.
What is shown here by GTs is what I was getting at about the gate being non linear.
It's like the throttle in your car. Roughly 80% of your power is controlled with 20% of the throttle blade movement. Same same for your wastegate which makes control very hard.
Not in front of a computer until later tonight so this is probably the best I can do for now.
We are using both ports on the wastegate eith the 3 port Mac valve, I've just changed it to single in the photo as I was trying it out on gate pressure
This is the other log file, if only we had exhaust manifold pressure - would understand what's going on a bit better
Can you take a screenshot of your wastegate setup in the Kebabtech?
Engine Functions --> Boost Control (looks like this):
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