I'm using APEXi AVC-R to control boost and SAFC to control fuel mixture, have stock turbo and stock intercooler. But i can't keep my boost even at 0.9 bar... first gear - boost go to my target 0.9 bar, then i switch to second gear there is a huge spike happens up to 1.05-1.1, and then pressure goes down and down while the revs go higer, the most drop happens at 6500 - 7000 revs, i can't even keep my boost at 0.7 on the second gear. then i switch to third (spike again) - same situation but boost is a bit higer - it stays at 0.7 - 0.8 bar. and goes down with revs going higher. forth gear is awesome - first is a small spike then boost goes down abit up to -0.05 bar from the target and then it goes up to 0.9 and stays there...
so, what i can't understand is what is the difference between revs at 2nd, 3rd and 4th gears? why i can't keep boost at 2nd and 3rd, but it's ok on 4th? is it i should configure AVC-R somehow more complex? i tried to make rev specific map for boost and make higher boost at 5500 - 7000 revs than it should. but there is still a drop
did anyone have such problem?