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Message: [QUOTE="TARM, post: 92095, member: 578"] Charles, I understand your theory on setting up the wastegate and using "air spring" as the main control component. But with a single turbo system when you first jump on the throttle your drive pressure tends to spike somewhat first with boost catching up and evening out as it builds. Would not going with a lower tension spring possibly allow the drive pressure to over come the spring enough to crack open the valve thus blunting the rate boost builds? Obviously this could be a positive or a negative I would think depending on what you are after. If I understood Jason, this is what he was speaking of in his comments about how hard hitting you want boost to come in?? I am thinking depending on the turbine setup and how fast spool and boost ramps up would dictate if some slight bypass initially is or is not wanted. Yes ? No? [/QUOTE]

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