Guest Anonymous Posted June 22, 2003 Share Posted June 22, 2003 I have a Tial external wg. Why does it have two ports on the diaphram? obivously on is for boost but do I just vent the top one? Thanks Quote Link to comment Share on other sites More sharing options...
yo2001 Posted June 22, 2003 Share Posted June 22, 2003 top one for an e-boost controller I was told. Quote Link to comment Share on other sites More sharing options...
jeffp Posted June 23, 2003 Share Posted June 23, 2003 The one side poer is for a standard waste gate, so what ever your spring will hold is the most boost you will get. The top hole is used for a wastegate controller, and what this does is to vent boost to the top of the diafram to hold the gate closed after the boost over comes the spring pressure, then the controller comes into play and vents the boost to the top of the gate as need to acheive the boost level you select on the controller. Quote Link to comment Share on other sites More sharing options...
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