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- #4,201
The challenge with running your small turbo wastegate signal off of compounded boost is that this signal will easily override your spring tension in both the fooler and the wastegate (something I've learned with our set ups).
Where is a better place to reference for the high pressure wastegate then? The intermediate charge pipe feeding the high pressure turbo? Meaning the wastegate is reacting to the atmospheric turbo boost level instead of it's own turbo's.