View Single Post
      01-19-2015, 09:39 AM   #101
DWR
Banned
798
Rep
1,633
Posts

Drives: 2009 335d
Join Date: Oct 2014
Location: Maine

iTrader: (0)

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.
Attached Images
 
Appreciate 0