I'm having some issues (I think) getting my closed loop boost control just right. I am targeting 15psi in my bias table at 100% TPS, the closed loop is over shooting that to 16psi (4800ish RPM) as it ramps up and then slowly falls off to about 13.8 by 7200. I've tried to increase bias up high, but short of making the target like 250kpa when i'm trying to get 205, it's not seeming to have an effect. I was hoping to get some knowledge on how people are tuning their closed loop. I did have the brilliant idea of using spring pressure for my peak boost and just using boost control for keeping the waste gate closed to build boost, but i dont run nearly this much boost on track days and I'm trying to avoid swapping out springs manually every time. I currently have a 5psi spring that runs to about 7psi of boost when there's no EBC involved. Thats what I run on track days.

If anyone has any good closed loop boost tuning resources and wants to post them instead of teaching me, that would be great as well!

 

Try this thread: https://www.miataturbo.net/megasquir...oop-ebc-94391/

 

100 miles apart great minds think alike.

That 18PSI thread is a great resource. I'm having kind of the same issues ref. my thread below.

https://www.miataturbo.net/megasquir...6/#post1675389

 

Nice! I have the same boost building spike I'm trying to get rid of. That other link is a little over my head but I figure if I read it enough times and get back to my Miata to test it'll eventually sink in.