Quote:
Originally Posted by DWR
Food for thought - HP turbo bypass valve tells the story of the little turbo's "range" of operation in a regulated 2-stage charging system (R2S). It gets bypassed before it's pressure ratio goes down to 1.05. For this application, the map below shows that it is contributing to the overall system pressure ratio to 3,200rpm.
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Fascinating. Thanks.
I had posted this awhile back in a different thread. It's showing the bypass actuator behavior for a 3rd gear full fuel run. Assuming Bav Tech is actually reading this value correctly (the "actual boost" is not the same as the analog gauge was showing ... so this is a bit of speculation on the integrity of the BPA behavior). If this is accurate, it's showing a little different behavior vs rpm than your plot. But my graph is on a remapped DDE...