Joe P. MBC design

[captd108]

Hey quick question, do your Joe p. MBC boost controllers have a hole in the body anywhere? Probably like 1mm diam. and located where the body bends. Reason im asking is cause i hear air being sucked in from this hole and i think its the reason why i hear a low pitched whistle while i spool. Thanks

 

[zachakagoat]

Yea mine has one, I have heard a few reasons why it's there but I can't remember exactly y.

 

[Royalty]

ditto

 

[sjgYFZ200]

Yep. Joe P is a local guy for me

 

[steveVR4]

Yes, it allows the pressure to bleed off in the line to the WGA allowing the wastegate to fully close (when your boost drops back below the set pressure).

 

[captd108]

do you think it could be causing that low pitched whistle noise?

 

[Defiant]

http://www.dsmtuners.com/forums/showthread.php?t=167873