also are you getting flutter? or what?
If the HKS unit is adjustable and its not opening it could be at too stiff of a spring pressure.
Quote:
Originally Posted by anarchyperf
To simplify things eliminate the boost controller and run wastegate pressure for now. Connect the wastegate directly to your boost source.
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This too, it is the easiest way to initially set up your blow off valve because you can make sure nothing else is interferring