Originally Posted by VargasTurboTech
Tony you keep saying the DME is killing boost. But, I don't see any evidence of it. Through what mechanism is the DME killing boost? The DME isn't even aware of the actual boost levels and we're running less boost than we do with the OEM turbo in parts of the curve anyway.
Loaded up the Cobb S2+ Aggr map today just to grab a log for you at higher load targets. The red line is the flash boost target. The blue line is actual boost. Boost max boost as with the OEM flash and everything else I've tried. Tapering to 17psi @ 6000rpm.
I was thinking about your diverter valve and how it doesn't have a boost reference to force it shut. Just a vacuum reference to pull it open. I see the intake has been tapped. Did you test a boost reference on it? The intake won't have vacuum to pull it open but could hold it shut. What data lead you to determine the OEM DV was leaking?
If its not the DV then it has to be the wastegate or the turbo. The wastegate is basically OEM right? I don't see how that could be leaking or binding. It seems to move normally when I look at it externally. "