Hi, i curious if somebody notieced any problems with high rpm boost on mid sized turbo/hybrid - small sized turbine side and 7A or similar higher lift cams. I feel problems over 6000rpm when my GT2871r, .63 T3 housing boosting over 1.3bar (400bhp+ power on 2.5 stroker, 10mm lift solid lifter cams). I notieced power curve starts to drop here on cca half off dyno pulls during tuning , also on streets is instantly notiecable. I have similar problem on another non audi car, and its caused due high backpressure in manifold and exhaust valves starts to float. I reduced boost around 1.2bar and feels smooth eg more power on top now.
Sounds real?
Sounds real?
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